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SECTION 07 72 33
ROOF HATCHES
 
 
Copyright 2017 - 2017 ARCAT, Inc. - All rights reserved
** NOTE TO SPECIFIER ** The BILCO Company; roof hatches.
This section is based on the products of The BILCO Company, which is located at:
P. O. Box 1203
New Haven, CT 06505-1203
Toll Free Tel: 800-366-6530
Fax: 203-535-1582
Email: request info (bilco@bilco.com)
Web: www.bilco.com
[ Click Here ] for additional information.
The BILCO Company has served the building industry since 1926. During these years it has built a reputation among architects, engineers, specifiers, and the construction trades for dependability and for products that are unequaled in design and workmanship. BILCO, a wholly owned subsidiary of AmesburyTruth which is a division of Tyman PLC, has been a pioneer in the development of specialty access products for commercial and residential construction markets.
The BILCO Company continues to be the industry leader in the design and manufacture of specialty access products. In order to better serve its customers, BILCO has added manufacturing facilities and strategic distribution throughout the world, along with establishing an extensive international network of factory-trained representatives. These representatives, combined with BILCO's highly skilled and dedicated personnel, ensure a level of customer service that is unequaled in the industry. As the leader in design innovation, many of BILCO's products incorporate features for which numerous U.S. and international patents have been issued. Years of engineering experience, coupled with manufacturing facilities utilizing the most modern equipment available, allows BILCO to design and fabricate access products for virtually every application.
The BILCO Company is committed to producing access products that are unequaled in quality, design and workmanship. BILCO products are fabricated to consistently high quality standards to ensure complete customer satisfaction. As part of its commitment, BILCO has implemented a LEAN manufacturing quality and continuous improvement system that has achieved ISO 9001 certification.
 
PART 1 GENERAL
 
1.1
SECTION INCLUDES
 
** NOTE TO SPECIFIER ** Delete items below not required for the project.
 
A.
Roof Hatches of the Following Types:
 
** NOTE TO SPECIFIER ** Delete roof hatch types not required.
 
1.
Type D Double Leaf, Special Size Roof Hatches.
2.
Type D-50T Double Leaf, Special Size, Thermally Enhanced Roof Hatches.
3.
Type E Single Leaf, Ladder Access Roof Hatches.
4.
Type E-50TB Single Leaf, Ladder Access, Thermally Broken Roof Hatches.
5.
Type F Single Leaf, Equipment Access Roof Hatches.
6.
Type F-50TB Single Leaf, Equipment Access, Thermally Broken Roof Hatches.
7.
Type GS Single Leaf, Skylight, Ladder Access Roof Hatches.
8.
Type GS-50TB Single Leaf, Skylight, Ladder Access, Thermally Broken, Roof Hatches.
9.
Type L Single Leaf, Service Stair Roof Hatches.
10.
Type L-50TB Single Leaf, Service Stair, Thermally Broken Roof Hatches.
11.
Type NB Single Leaf, Ship Stair, Roof Hatches.
12.
Type NB-50TB Single Leaf ,Ship Stair, Thermally Broken Roof Hatches.
13.
Type NB-HZ Single Leaf ,Ship Stair, Miami-Dade Approved Roof Hatches.
14.
Type S Single Leaf, Ladder Access, Miami-Dade Approved Roof Hatches.
15.
Type S-50TB Single Leaf ,Ladder Access, Thermally Broken Roof Hatches.
16.
Type SEC Single Leaf Security Series Roof Hatches.
17.
Type SS Single Leaf, Special Size Roof Hatches.
18.
Type SS-50TB Single Leaf, Special Size, Thermally Broken Roof Hatches.
19.
Type VM Single Leaf Roof Hatches.
B.
Roof Hatch Rail Systems: Bil-Guard 2.0.
C.
Ladder Safety Posts: Type LU.
1.2
RELATED SECTIONS
 
** NOTE TO SPECIFIER ** Delete any sections below not relevant to this project; add others as required.
 
A.
Section 07 72 26 - Ridge Vents.
B.
Section 07 72 53 - Snow Guards.
C.
Section 08 31 13 - Access Doors and Frames.
D.
Section 08 33 00 - Overhead Coiling Doors and Grilles4 - Smoke and Fire Curtains.
E.
Section - .
1.3
REFERENCES
A.
Florida Building Code (FBC)
B.
Occupational Safety and Health Administration (OSHA):
1.
OSHA 29 CFR 1910.23 - Regulation and Standards; Occupational Safety and Health Standards; Guarding Floor and Wall Openings and Holes.
1.4
SUBMITTALS
A.
Submit under provisions of Section 01 30 00 - Administrative Requirements.
B.
Product Data: Manufacturer's data sheets on each product to be used, including:
1.
Preparation instructions and recommendations.
2.
Storage and handling requirements and recommendations.
3.
Installation methods.
C.
Shop Drawings: Include system components, utility requirements and connections, relationship with adjacent construction. Include required clearances and access for servicing.
1.5
QUALITY ASSURANCE
A.
Manufacturer Qualifications: Minimum 5 years experience manufacturing similar equipment.
B.
Installer Qualifications: Minimum 2 years experience installing similar equipment.
1.6
DELIVERY, STORAGE, AND HANDLING
A.
Store products in manufacturer's unopened packaging until ready for installation.
1.7
PROJECT CONDITIONS
A.
Maintain environmental conditions (temperature, humidity, and ventilation) within limits recommended by manufacturer for optimum results. Do not install products under environmental conditions outside manufacturer's recommended limits.
1.8
WARRANTY
A.
Manufacturer's Warranty: Provide manufacturer's standard warranty. Materials shall be free of defects in material and workmanship for a period of five years from the date of purchase. Should a part fail to function in normal use within this period, manufacturer shall furnish a new part at no charge.
PART 2 PRODUCTS
 
2.1
MANUFACTURERS
A.
Acceptable Manufacturer: The BILCO Company, which is located at: P. O. Box 1203; New Haven, CT 06505-1203; Toll Free Tel: 800-366-6530; Fax: 203-535-1582; Email: request info (bilco@bilco.com); Web: www.bilco.com
 
** NOTE TO SPECIFIER ** Delete one of the following two paragraphs; coordinate with requirements of Division 1 section on product options and substitutions.
 
B.
Substitutions: Not permitted.
C.
Requests for substitutions will be considered in accordance with provisions of Section 01 60 00 - Product Requirements.
 
** NOTE TO SPECIFIER ** Delete article if not required.
 
2.2
ROOF HATCHES TYPE D
A.
Basis-of-Design Manufacturer: Type D Double Leaf Roof Hatch as manufactured by The BILCO Company.
1.
Factory pre-assembled.
2.
Width (in / mm): ______.
3.
Length (in / mm): ______. Length denotes hinge side.
B.
Performance Characteristics:
1.
Covers:
a.
Minimum Live Load: 40 lbs per sq ft (195.3 kg per sq m).
b.
Maximum Deflection: 1/150th of span or 20 lbs per sq ft (97.6 kg per sq m) wind uplift.
c.
Smooth and easy controlled operation through entire opening and closing arc.
d.
Operation not to be affected by temperature.
2.
Entire Roof Hatch: Weather tight. Fully welded corner joints on covers and curb.
C.
Covers:
 
** NOTE TO SPECIFIER ** Delete material not required.
 
1.
Material: 14 gauge, 0.078 in (1.99 mm) paint bond G-90 galvanized steel.
2.
Material: 11 gauge, 0.091 in (2.30 mm) aluminum.
3.
Beaded Flange: 3 in (76 mm) with formed reinforcing members.
4.
Heavy extruded EPDM rubber gasket bonded to cover interior assuring a continuous seal with the top surface of the curb.
5.
Hardware: Bolted into heavy gauge channel reinforcing welded to the underside of the cover and concealed within the insulation space.
6.
Insulation: 1 in (25 mm) thick fiberglass. Covered and protected by a metal liner.
 
** NOTE TO SPECIFIER ** Delete material not required.
 
a.
Metal Liner: 22 gauge, 0.034 in (0.85 mm) paint bond G-90 galvanized steel.
b.
Metal Liner: 18 gauge, 0.040 in (1.02 mm) aluminum.
D.
Curb:
1.
Height: 12 in (305 mm).
 
** NOTE TO SPECIFIER ** Delete material not required.
 
2.
Material: 14 gauge, 0.078 in (1.99 mm) paint bond G-90 galvanized steel.
3.
Material: 11 gauge, 0.091 in (2.30 mm) aluminum.
4.
Formed with 3-1/2 in (89 mm) flange with 7/16 in (11 mm) holes provided for securing to the roof deck.
5.
Integral Metal Capflashing: Same gauge and material as curb and fully welded at the corners. Bil-Clip Flashing System: Stamped tabs, 6 in (153 mm) on center, bent inward to hold single ply roofing membrane securely in place.
6.
Insulation: Rigid, 1 in (25 mm) thick, high-density fiberboard on outside of curb.
E.
Lifting Mechanism: Compression spring operators enclosed in telescopic tubes. The upper, outer tube prevents accumulation of moisture, grit, and debris inside the lower tube assembly. The lower tube interlocks with a flanged support shoe.
1.
Compression Spring Tubes: Anti-corrosive composite material.
 
** NOTE TO SPECIFIER ** Delete support shoe not required.
 
2.
Flanged Support Shoe, Aluminum: Welded to the curb assembly.
3.
Flanged Support Shoe, Steel: Through bolted to the curb assembly.
F.
Hardware:
1.
Heavy pintle hinges.
2.
Latch: Enclosed two-point spring latch. Interior and exterior turn handles.
3.
Latch strike: Stamped component bolted to the curb assembly.
4.
Automatic Open Position Lock: Rigid hold open arm equipped with 1 in (25mm) diameter red vinyl grip handle to permit easy release for closing.
5.
Roof hatch equipped with interior and exterior padlock hasps.
 
** NOTE TO SPECIFIER ** For highly corrosive environments or prolonged exposure to hot water or steam specify 316 stainless steel hardware. Delete hardware material not required,
 
6.
Hardware Material: Zinc plated and chromate sealed.
7.
Hardware Material: 316 stainless steel.
 
** NOTE TO SPECIFIER ** Delete factory finish not required.
 
G.
Factory Finish: Alkyd based red oxide primed steel.
H.
Factory Finish: Mill finish aluminum.
 
** NOTE TO SPECIFIER ** Delete article if not required.
 
2.3
ROOF HATCHES TYPE D-50T
A.
Basis-of-Design Manufacturer: Type D-50T Double Leaf Roof Hatch as manufactured by The BILCO Company.
1.
Factory pre-assembled.
2.
Width (in / mm): ______.
3.
Length (in / mm): ______. Length denotes hinge side.
B.
Performance Characteristics:
1.
Covers:
a.
Minimum Live Load: 40 lbs per sq ft (195.3 kg per sq m).
b.
Maximum Deflection: 1/150th of span or 20 lbs per sq ft (97.6 kg per sq m) wind uplift.
c.
Smooth and easy controlled operation through entire opening and closing arc.
d.
Operation not to be affected by temperature.
2.
Entire Roof Hatch: Weather tight. Fully welded corner joints on covers and curb.
C.
Covers:
1.
Material: 11 gauge, 0.091 in (2.30 mm) aluminum.
2.
Heavy extruded EPDM rubber gasket bonded to cover interior assuring a continuous seal with the top surface of the curb.
3.
Hardware: Bolted into heavy gauge channel reinforcing welded to the underside of the cover and concealed within the insulation space.
4.
Insulation: 2 in (51 mm) thick polyisocyanurate with R-value of 12 (U of 0.47 W per sq m K). Covered and protected by 18 gauge, 0.040 (1.02 mm) aluminum liner.
D.
Curb:
1.
Height: 12 in (305 mm).
2.
Material: 11 gauge, 0.091 in (2.30 mm) aluminum.
3.
Formed with 4-1/2 in (114 mm) flange with 7/16 in (11 mm) holes provided for securing to the roof deck.
4.
Integral Metal Capflashing: Same gauge and material as curb and fully welded at the corners. Bil-Clip Flashing System: Stamped tabs, 6 in (152 mm) on center, bent inward to hold single ply roofing membrane securely in place.
5.
Insulation: Rigid, 2 in (51 mm) thick, polyisocyanurate with an R-value of 12 (U of 0.47 W per sq m K).
E.
Lifting Mechanisms: Compression spring operators enclosed in telescopic tubes. The upper, outer tube prevents accumulation of moisture, grit, and debris inside the lower tube assembly. The lower tube interlocks with a flanged support shoe welded to the curb assembly. Compression Spring Tubes: Anti-corrosive composite material.
F.
Hardware:
1.
Heavy type 316 stainless steel pintle hinges.
2.
Latch: Enclosed two-point spring latch. Interior and exterior turn handles.
3.
Latch strike: Stamped component bolted to the curb assembly.
4.
Automatic Open Position Lock: Rigid hold open arm equipped with 1 in (25 mm) diameter red vinyl grip handle to permit easy release for closing.
5.
Roof hatch equipped with interior and exterior padlock hasps.
 
** NOTE TO SPECIFIER ** For highly corrosive environments or prolonged exposure to hot water or steam specify 316 stainless steel hardware. Delete hardware material not required,
 
6.
Hardware Material: Zinc plated and chromate sealed.
7.
Hardware Material: 316 stainless steel.
G.
Factory Finish: Mill finish aluminum.
 
** NOTE TO SPECIFIER ** Delete article if not required.
 
2.4
ROOF HATCHES TYPE E
A.
Basis-of-Design Manufacturer: Type E Single Leaf Roof Hatch as manufactured by The BILCO Company.
1.
Factory pre-assembled.
2.
Width: 36 in (914 mm). Length: 36 in (914 mm). Length denotes hinge side.
B.
Performance Characteristics:
1.
Cover:
a.
Minimum Live Load: 40 lbs per sq ft (195.3 kg per sq m).
b.
Maximum Deflection: 1/150th of span or 20 lbs per sq ft (97.6 kg per sq m) wind uplift.
c.
Smooth and easy controlled operation through entire opening and closing arc.
d.
Operation not to be affected by temperature.
2.
Entire Roof Hatch: Weather tight. Fully welded corner joints on covers and curb.
C.
Cover:
 
** NOTE TO SPECIFIER ** Delete material not required.
 
1.
Material: 14 gauge, 0.078 in (1.99 mm) paint bond G-90 galvanized steel.
2.
Material: 11 gauge, 0.091 in (2.30 mm) aluminum.
3.
Beaded Flange: 3 in (76 mm) with formed reinforcing members.
4.
Heavy extruded EPDM rubber gasket bonded to cover interior assuring a continuous seal with the top surface of the curb.
5.
Hardware: Bolted into heavy gauge channel reinforcing welded to the underside of the cover and concealed within the insulation space.
6.
Insulation: 1 in (25 mm) thick fiberglass. Covered and protected by a metal liner.
 
** NOTE TO SPECIFIER ** Delete material not required.
 
a.
Metal Liner: 22 gauge, 0.034 in (0.85 mm) paint bond G-90 galvanized steel.
b.
Metal Liner: 18 gauge, 0.040 in (1.02 mm) aluminum.
D.
Curb:
1.
Height: 12 in (305 mm).
 
** NOTE TO SPECIFIER ** Delete material not required.
 
2.
Material: 14 gauge, 0.078 in (1.99 mm) paint bond G-90 galvanized steel.
3.
Material: 11 gauge, 0.091 in (2.30 mm) aluminum.
4.
Formed with 3-1/2 in (89 mm) flange with 7/16 in (11 mm) holes provided for securing to the roof deck.
5.
Integral Metal Capflashing: Same gauge and material as curb and fully welded at the corners. Bil-Clip Flashing System: Stamped tabs, 6 in (153 mm) on center, bent inward to hold single ply roofing membrane securely in place.
6.
Insulation: Rigid, 1 in (25 mm) thick, high-density fiberboard on outside of curb.
E.
Lifting Mechanisms: Compression spring operators enclosed in telescopic tubes. The upper, outer tube prevents accumulation of moisture, grit, and debris inside the lower tube assembly. The lower tube interlocks with a flanged support shoe. Compression Spring Tubes: Anti-corrosive composite material.
 
** NOTE TO SPECIFIER ** Delete support shoe not required.
 
1.
Flanged Support Shoe, Aluminum: Welded to the curb assembly.
2.
Flanged Support Shoe, Steel: Through bolted to the curb assembly.
F.
Hardware:
1.
Heavy pintle hinges.
2.
Latch: Enclosed spring latch. Interior and exterior turn handles.
3.
Latch strike: Stamped component bolted to the curb assembly.
4.
Automatic Open Position Lock: Rigid hold open arm equipped with 1 in (25 mm) diameter red vinyl grip handle to permit easy release for closing.
5.
Roof hatch equipped with interior and exterior padlock hasps.
 
** NOTE TO SPECIFIER ** For highly corrosive environments or prolonged exposure to hot water or steam specify 316 stainless steel hardware. Delete hardware material not required,
 
6.
Hardware Material: Zinc plated and chromate sealed.
7.
Hardware Material: 316 stainless steel.
 
** NOTE TO SPECIFIER ** Delete factory finish not required.
 
G.
Factory Finish: Alkyd based red oxide primed steel.
H.
Factory Finish: Mill finish aluminum.
 
** NOTE TO SPECIFIER ** Delete article if not required.
 
2.5
ROOF HATCHES TYPE E-50TB
A.
Basis-of-Design Manufacturer: Type E-50TB Single Leaf Roof Hatch as manufactured by The BILCO Company.
1.
Factory pre-assembled.
2.
Width: 36 in (914 mm). Length: 36 in (914 mm). Length denotes hinge side.
B.
Performance Characteristics:
1.
Cover:
a.
Minimum Live Load: 40 lbs per sq ft (195.3 kg per sq m).
b.
Maximum Deflection: 1/150th of span or 20 lbs per sq ft (97.6 kg per sq m) wind uplift.
c.
Smooth and easy controlled operation through entire opening and closing arc.
d.
Operation not to be affected by temperature.
2.
Entire Roof Hatch:
a.
Cover and curb shall be thermally broken to prevent heat transfer between interior and exterior surfaces.
b.
Weather tight. Fully welded corner joints on covers and curb.
C.
Cover:
1.
Material: 11 gauge, 0.091 in (2.30 mm) aluminum.
2.
Beaded Flange: 5 in (127 mm) with formed reinforcing members.
3.
Heavy extruded EPDM rubber gasket bonded to cover interior assuring a continuous seal with the top surface of the curb.
4.
Hardware: Bolted into heavy gauge channel reinforcing welded to the underside of the cover and concealed within the insulation space.
5.
Insulation: 3 in (75 mm) thick polyisocyanurate with an R-value = 20.3 (U=0.279 W per sq m K). Covered and protected by 18 gauge, 0.040 in (1.02 mm) aluminum liner.
D.
Curb:
1.
Height: 12 in (305 mm).
2.
Material: 11 gauge, 0.091 in (2.30 mm) aluminum.
3.
Formed with 5-1/2 in (140 mm) flange with 7/16 in (11 mm) holes provided for securing to the roof deck.
4.
Integral Metal Capflashing: Same gauge and material as curb and fully welded at the corners. Bil-Clip Flashing System: Stamped tabs, 6 in (152 mm) on center, bent inward to hold single ply roofing membrane securely in place.
5.
Insulation: Rigid, 3 in (76 mm) thick, polyisocyanurate with an R-value = 20.3 (U=0.279 W per sq m K).
E.
Lifting Mechanisms: Compression spring operators enclosed in telescopic tubes. The upper, outer tube prevents accumulation of moisture, grit, and debris inside the lower tube assembly. The lower tube interlocks with a flanged support shoe welded to curb assembly. Compression Spring Tubes: Anti-corrosive composite material.
F.
Hardware:
1.
Heavy type 316 stainless steel pintle hinges.
2.
Latch: Enclosed two-point spring latch. Interior and exterior turn handles.
3.
Latch strike: Stamped component bolted to the curb assembly.
4.
Automatic Open Position Lock: Rigid hold open arm equipped with 1 in (25 mm) diameter red vinyl grip handle to permit easy release for closing.
5.
Roof hatch equipped with interior and exterior padlock hasps.
 
** NOTE TO SPECIFIER ** For highly corrosive environments or prolonged exposure to hot water or steam specify 316 stainless steel hardware. Delete hardware material not required,
 
6.
Hardware Material: Zinc plated and chromate sealed.
7.
Hardware Material: 316 stainless steel.
G.
Factory Finish: Mill finish aluminum.
 
** NOTE TO SPECIFIER ** Delete article if not required.
 
2.6
ROOF HATCHES TYPE F
A.
Basis-of-Design Manufacturer: Type F Single Leaf Roof Hatch as manufactured by The BILCO Company.
1.
Factory pre-assembled.
2.
Width: 48 in (1219 mm). Length: 48 in (1219 mm). Length denotes hinge side.
B.
Performance Characteristics:
1.
Cover:
a.
Minimum Live Load: 40 lbs per sq ft (195.3 kg per sq m).
b.
Maximum Deflection: 1/150th of span or 20 lbs per sq ft (97.6 kg per sq m) wind uplift.
c.
Smooth and easy controlled operation through entire opening and closing arc.
d.
Operation not to be affected by temperature.
2.
Entire Roof Hatch: Weather tight. Fully welded corner joints on covers and curb
C.
Covers:
 
** NOTE TO SPECIFIER ** Delete material not required.
 
1.
Material: 14 gauge, 0.078 in (1.99 mm) paint bond G-90 galvanized steel.
2.
Material: 11 gauge, 0.091 in (2.30 mm) aluminum.
3.
Beaded Flange: 3 in (76 mm) with formed reinforcing members.
4.
Heavy extruded EPDM rubber gasket bonded to cover interior assuring a continuous seal with the top surface of the curb.
5.
Hardware: Bolted into heavy gauge channel reinforcing welded to the underside of the cover and concealed within the insulation space.
6.
Insulation: 1 in (25 mm) thick fiberglass. Covered and protected by a metal liner.
 
** NOTE TO SPECIFIER ** Delete material not required.
 
a.
Metal Liner: 22 gauge, 0.034 in (0.85 mm) paint bond G-90 galvanized steel.
b.
Metal Liner: 18 gauge, 0.040 in (1.02 mm) aluminum.
D.
Curb:
1.
Height: 12 in (305 mm).
 
** NOTE TO SPECIFIER ** Delete material not required.
 
2.
Material: 14 gauge, 0.078 in (1.99 mm) paint bond G-90 galvanized steel.
3.
Material: 11 gauge, 0.091 in (2.30 mm) aluminum.
4.
Formed with 3-1/2 in (89 mm) flange with 7/16 in (11 mm) holes provided for securing to the roof deck.
5.
Integral Metal Capflashing: Same gauge and material as curb and fully welded at the corners. Bil-Clip Flashing System: Stamped tabs, 6 in (153 mm) on center, bent inward to hold single ply roofing membrane securely in place.
6.
Insulation: Rigid, 1 in (25 mm) thick, high-density fiberboard on outside of curb.
E.
Lifting Mechanisms: Compression spring operators enclosed in telescopic tubes. The upper, outer tube prevents accumulation of moisture, grit, and debris inside the lower tube assembly. The lower tube interlocks with a flanged support shoe. Compression Spring Tubes: Anti-corrosive composite material.
 
** NOTE TO SPECIFIER ** Delete support shoe not required.
 
1.
Flanged Support Shoe, Aluminum: Welded to the curb assembly.
2.
Flanged Support Shoe, Steel: Through bolted to the curb assembly.
F.
Hardware:
1.
Heavy pintle hinges.
2.
Latch: Enclosed spring latch. Interior and exterior turn handles.
3.
Latch strike: Stamped component bolted to the curb assembly.
4.
Automatic Open Position Lock: Rigid hold open arm equipped with 1 in (25 mm) diameter red vinyl grip handle to permit easy release for closing.
5.
Roof hatch equipped with interior and exterior padlock hasps.
 
** NOTE TO SPECIFIER ** For highly corrosive environments or prolonged exposure to hot water or steam specify 316 stainless steel hardware. Delete hardware material not required,
 
6.
Hardware Material: Zinc plated and chromate sealed.
7.
Hardware Material: 316 stainless steel.
 
** NOTE TO SPECIFIER ** Delete factory finish not required.
 
G.
Factory Finish: Alkyd based red oxide primed steel.
H.
Factory Finish: Mill finish aluminum.
 
** NOTE TO SPECIFIER ** Delete article if not required.
 
2.7
ROOF HATCHES TYPE F-50TB
A.
Basis-of-Design Manufacturer: Type F-50TB Single Leaf Roof Hatch as manufactured by The BILCO Company.
1.
Factory pre-assembled.
2.
Width: 48 in (1219 mm). Length: 48 in (1219 mm). Length denotes hinge side.
B.
Performance Characteristics:
1.
Cover:
a.
Minimum Live Load: 40 lbs per sq ft (195.3 kg per sq m).
b.
Maximum Deflection: 1/150th of span or 20 lbs per sq ft (97.6 kg per sq m) wind uplift.
c.
Smooth and easy controlled operation through entire opening and closing arc.
d.
Operation not to be affected by temperature.
2.
Entire Roof Hatch:
a.
Cover and curb shall be thermally broken to prevent heat transfer between interior and exterior surfaces.
b.
Weather tight. Fully welded corner joints on covers and curb
C.
Cover:
1.
Material: 11 gauge, 0.091 in (2.30 mm) aluminum.
2.
Beaded Flange: 5 in (127 mm) beaded flange with formed reinforcing members.
3.
Heavy extruded EPDM rubber gasket bonded to cover interior assuring a continuous seal with the top surface of the curb.
4.
Hardware: Bolted into heavy gauge channel reinforcing welded to the underside of the cover and concealed within the insulation space.
5.
Insulation: 3 in (76 mm) thick polyisocyanurate with an R-value = 20.3 (U=0.279 W per sq m K). Covered and protected by 18 gauge, 0.040 in (1.02 mm) aluminum liner.
D.
Curb:
1.
Height: 12 in (305 mm).
2.
Material: 11 gauge, 0.091 in (2.30 mm) aluminum.
3.
Formed with 5-1/2 in (140 mm) flange with 7/16 in (11 mm) holes provided for securing to the roof deck.
4.
Integral Metal Capflashing: Same gauge and material as curb and fully welded at the corners. Bil-Clip Flashing System: Stamped tabs, 6 in (152 mm) on center, bent inward to hold single ply roofing membrane securely in place.
5.
Insulation: Rigid, 3 in (76 mm) thick, polyisocyanurate with an R-value = 20.3 (U=0.279 W per sq m K)..
E.
Lifting Mechanisms: Compression spring operators enclosed in telescopic tubes. The upper, outer tube prevents accumulation of moisture, grit, and debris inside the lower tube assembly. The lower tube interlocks with a flanged support shoe welded to curb assembly. Compression Spring Tubes: Anti-corrosive composite material
F.
Hardware:
1.
Heavy type 316 stainless steel pintle hinges.
2.
Latch: Enclosed spring latch. Interior and exterior turn handles.
3.
Latch strike: Stamped component bolted to the curb assembly.
4.
Automatic Open Position Lock: Rigid hold open arm equipped with 1 in (25 mm) diameter red vinyl grip handle to permit easy release for closing.
5.
Roof hatch equipped with interior and exterior padlock hasps.
 
** NOTE TO SPECIFIER ** For highly corrosive environments or prolonged exposure to hot water or steam specify 316 stainless steel hardware. Delete hardware material not required,
 
6.
Hardware Material: Zinc plated and chromate sealed.
7.
Hardware Material: 316 stainless steel.
G.
Factory Finish: Mill finish aluminum.
 
** NOTE TO SPECIFIER ** Delete article if not required.
 
2.8
ROOF HATCHES TYPE GS
A.
Basis-of-Design Manufacturer: Type GS Single Leaf Roof Hatch as manufactured by The BILCO Company.
1.
Factory pre-assembled.
2.
Width: 36 in (914 mm). Length: 30 in (762 mm). Length denotes hinge side.
B.
Performance Characteristics:
1.
Cover:
a.
Minimum Live Load: 40 lbs per sq ft (195.3 kg per sq m).
b.
Maximum Deflection: 1/150th of span or 20 lbs per sq ft (97.6 kg per sq m) wind uplift.
c.
Smooth and easy controlled operation through entire opening and closing arc.
d.
Operation not to be affected by temperature.
2.
Entire Roof Hatch: Weather tight. Fully welded corner joints on covers and curb
C.
Cover:
1.
Material: Shall be 11 gauge (2.30 mm) aluminum with a 3" (76mm) beaded flange and a polycarbonate dome framed with rigid extruded aluminum and coated for UV resistance.
2.
Beaded Flange: 3 in (76 mm) beaded flange with formed reinforcing members.
3.
Heavy extruded EPDM rubber gasket bonded to cover interior assuring a continuous seal with the top surface of the curb.
4.
Hardware: Bolted into heavy gauge channel reinforcing welded to the underside of the cover and concealed within the insulation space.
5.
Insulation: 1 in (25 mm) thick fiberglass. Covered and protected by a metal liner.
6.
Metal Liner: 18 gauge, 0.040 in (1.02 mm) aluminum.
D.
Curb:
1.
Height: 12 in (305 mm).
2.
Material: 11 gauge, 0.091 in (2.30 mm) aluminum.
3.
Formed with 3-1/2 in (89 mm) flange with 7/16 in (11 mm) holes provided for securing to the roof deck.
4.
Integral Metal Capflashing: Same gauge and material as curb and fully welded at the corners. Bil-Clip Flashing System: Stamped tabs, 6 in (152 mm) on center, bent inward to hold single ply roofing membrane securely in place.
5.
Insulation: Rigid, 1 in (25 mm) thick, high-density fiberboard on outside of curb.
E.
Lifting Mechanisms: Compression spring operators enclosed in telescopic tubes. The upper, outer tube prevents accumulation of moisture, grit, and debris inside the lower tube assembly. The lower tube interlocks with a flanged support shoe. Compression Spring Tubes: Anti-corrosive composite material
1.
Flanged Support Shoe, Aluminum: Welded to the curb assembly.
F.
Hardware:
1.
Heavy type 316 stainless steel pintle hinges.
2.
Latch: Enclosed spring latch. Interior and exterior turn handles.
3.
Latch strike: Stamped component bolted to the curb assembly.
4.
Automatic Open Position Lock: Rigid hold open arm equipped with 1 in (25 mm) diameter red vinyl grip handle to permit easy release for closing.
5.
Roof hatch equipped with interior and exterior padlock hasps.
 
** NOTE TO SPECIFIER ** For highly corrosive environments or prolonged exposure to hot water or steam specify 316 stainless steel hardware. Delete hardware material not required,
 
6.
Hardware Material: Zinc plated and chromate sealed.
7.
Hardware Material: 316 stainless steel.
G.
Factory Finish: Mill finish aluminum.
 
** NOTE TO SPECIFIER ** Delete article if not required.
 
2.9
ROOF HATCHES TYPE GS-50TB
A.
Basis-of-Design Manufacturer: Type GS-50TB Single Leaf Roof Hatch as manufactured by The BILCO Company.
1.
Factory pre-assembled.
2.
Width: 36 in (914 mm). Length: 30 in (762 mm). Length denotes hinge side.
B.
Performance Characteristics:
1.
Cover:
a.
Minimum Live Load: 40 lbs per sq ft (195.3 kg per sq m).
b.
Maximum Deflection: 1/150th of span or 20 lbs per sq ft (97.6 kg per sq m) wind uplift.
c.
Smooth and easy controlled operation through entire opening and closing arc.
d.
Operation not to be affected by temperature.
2.
Entire Roof Hatch: Weather tight. Fully welded corner joints on covers and curb
C.
Cover:
1.
Material: Shall be 11 gauge (2.30 mm) aluminum with a 3" (76mm) beaded flange and a polycarbonate dome framed with rigid extruded aluminum and coated for UV resistance.
2.
Beaded Flange: 5 in (127 mm) beaded flange with formed reinforcing members.
3.
Heavy extruded EPDM rubber gasket bonded to cover interior assuring a continuous seal with the top surface of the curb.
4.
Hardware: Bolted into heavy gauge channel reinforcing welded to the underside of the cover and concealed within the insulation space.
D.
Curb:
1.
Height: 12 in (305 mm).
2.
Material: 11 gauge, 0.091 in (2.30 mm) aluminum.
3.
Formed with 5-1/2 in (140 mm) flange with 7/16 in (11 mm) holes provided for securing to the roof deck.
4.
Integral Metal Capflashing: Same gauge and material as curb and fully welded at the corners. Bil-Clip Flashing System: Stamped tabs, 6 in (152 mm) on center, bent inward to hold single ply roofing membrane securely in place.
5.
Insulation: Rigid, 3 in (76 mm) thick, polyisocyanurate with an R-value = 20.3 (U=0.279 W per sq m K).
E.
Lifting Mechanisms: Compression spring operators enclosed in telescopic tubes. The upper, outer tube prevents accumulation of moisture, grit, and debris inside the lower tube assembly. The lower tube interlocks with a flanged support shoe welded to curb assembly. Compression Spring Tubes: Anti-corrosive composite material
F.
Hardware:
1.
Heavy type 316 stainless steel pintle hinges.
2.
Latch: Enclosed spring latch. Interior and exterior turn handles.
3.
Latch strike: Stamped component bolted to the curb assembly.
4.
Automatic Open Position Lock: Rigid hold open arm equipped with 1 in (25 mm) diameter red vinyl grip handle to permit easy release for closing.
5.
Roof hatch equipped with interior and exterior padlock hasps.
 
** NOTE TO SPECIFIER ** For highly corrosive environments or prolonged exposure to hot water or steam specify 316 stainless steel hardware. Delete hardware material not required,
 
6.
Hardware Material: Zinc plated and chromate sealed.
7.
Hardware Material: 316 stainless steel.
G.
Factory Finish: Mill finish aluminum.
 
** NOTE TO SPECIFIER ** Delete article if not required.
 
2.10
ROOF HATCHES TYPE L
A.
Basis-of-Design Manufacturer: Type L Single Leaf Roof Hatch as manufactured by The BILCO Company.
1.
Factory pre-assembled.
2.
Width: 30 in (762 mm). Length: 96 in (2438 mm). Length denotes hinge side.
B.
Performance Characteristics:
1.
Cover:
a.
Minimum Live Load: 40 lbs per sq ft (195.3 kg per sq m).
b.
Maximum Deflection: 1/150th of span or 20 lbs per sq ft (97.6 kg per sq m) wind uplift.
c.
Smooth and easy controlled operation through entire opening and closing arc.
d.
Operation not to be affected by temperature.
2.
Entire Roof Hatch: Weather tight. Fully welded corner joints on covers and curb
C.
Cover:
 
** NOTE TO SPECIFIER ** Delete material not required.
 
1.
Material: 14 gauge, 0.078 in (1.99 mm) paint bond G-90 galvanized steel.
2.
Material: 11 gauge, 0.091 in (2.30 mm) aluminum.
3.
Beaded Flange: 3 in (76 mm) formed reinforcing members.
4.
Heavy extruded EPDM rubber gasket bonded to cover interior assuring a continuous seal with the top surface of the curb.
5.
Hardware: Bolted into heavy gauge channel reinforcing welded to the underside of the cover and concealed within the insulation space.
6.
Insulation: 1 in (25 mm) thick fiberglass. Covered and protected by a metal liner.
 
** NOTE TO SPECIFIER ** Delete material not required.
 
a.
Metal Liner: 22 gauge, 0.034 in (0.85 mm) paint bond G-90 galvanized steel.
b.
Metal Liner: 18 gauge, 0.040 in (1.02 mm) aluminum.
D.
Curb:
1.
Height: 12 in (305 mm).
 
** NOTE TO SPECIFIER ** Delete material not required.
 
2.
Material: 14 gauge, 0.078 in (1.99 mm) paint bond G-90 galvanized steel.
3.
Material: 11 gauge, 0.091 in (2.30 mm) aluminum.
4.
Formed with 3-1/2 in (89 mm) flange with 7/16 in (11 mm) holes provided for securing to the roof deck.
5.
Integral Metal Capflashing: Same gauge and material as curb and fully welded at the corners. Bil-Clip Flashing System: Stamped tabs, 6 in (152 mm) on center, bent inward to hold single ply roofing membrane securely in place.
6.
Insulation: Rigid, 1 in (25 mm) thick, high-density fiberboard on outside of curb.
E.
Lifting Mechanisms: Compression spring operators enclosed in telescopic tubes. The upper, outer tube prevents accumulation of moisture, grit, and debris inside the lower tube assembly. The lower tube interlocks with a flanged support shoe. Compression Spring Tubes: Anti-corrosive composite material
 
** NOTE TO SPECIFIER ** Delete support shoe not required.
 
1.
Flanged Support Shoe, Aluminum: Welded to the curb assembly.
2.
Flanged Support Shoe, Steel: Through bolted to the curb assembly.
F.
Hardware:
1.
Heavy pintle hinges.
2.
Latch: Enclosed two-point spring latch. Interior and exterior turn handles.
3.
Latch strike: Stamped component bolted to the curb assembly.
4.
Automatic Open Position Lock: Rigid hold open arm equipped with 1 in (25 mm) diameter red vinyl grip handle to permit easy release for closing.
5.
Roof hatch equipped with interior and exterior padlock hasps.
 
** NOTE TO SPECIFIER ** For highly corrosive environments or prolonged exposure to hot water or steam specify 316 stainless steel hardware. Delete hardware material not required,
 
6.
Hardware Material: Zinc plated and chromate sealed.
7.
Hardware Material: 316 stainless steel.
 
** NOTE TO SPECIFIER ** Delete factory finish not required.
 
G.
Factory Finish: Alkyd based red oxide primed steel.
H.
Factory Finish: Mill finish aluminum.
 
** NOTE TO SPECIFIER ** Delete article if not required.
 
2.11
ROOF HATCHES TYPE L-50TB
A.
Basis-of-Design Manufacturer: Type L-50TB Single Leaf Roof Hatch as manufactured by The BILCO Company.
1.
Factory pre-assembled.
2.
Width: 30 in (762 mm).
3.
Length: 96 inches (2438 mm). Length denotes hinge side.
B.
Performance Characteristics:
1.
Cover:
a.
Minimum Live Load: 40 lbs per sq ft (195.3 kg per sq m).
b.
Maximum Deflection: 1/150th of span or 20 lbs per sq ft (97.6 kg per sq m) wind uplift.
c.
Smooth and easy controlled operation through entire opening and closing arc.
d.
Operation not to be affected by temperature.
2.
Entire Roof Hatch: Weather tight. Fully welded corner joints on covers and curb
C.
Cover:
1.
Material: 11 gauge, 0.091 in (2.30 mm) aluminum.
2.
Beaded Flange: 5 in (127 mm) with formed reinforcing members.
3.
Heavy extruded EPDM rubber gasket bonded to cover interior assuring a continuous seal with the top surface of the curb.
4.
Hardware: Bolted into heavy gauge channel reinforcing welded to the underside of the cover and concealed within the insulation space.
5.
Insulation: 3 in (75 mm) thick polyisocyanurate with an R-value = 20.3 (U=0.279 W per sq m K). Covered and protected by 18 gauge, 0.040 in (1.02 mm) aluminum liner.
D.
Curb:
1.
Height: 12 in (305 mm).
2.
Material: 11 gauge, 0.091 in (2.30 mm) aluminum.
3.
Formed with 5-1/2 in (140 mm) flange with 7/16 in (11 mm) holes provided for securing to the roof deck.
4.
Integral Metal Capflashing: Same gauge and material as curb and fully welded at the corners. Bil-Clip Flashing System: Stamped tabs, 6 in (152 mm) on center, bent inward to hold single ply roofing membrane securely in place.
5.
Insulation: Rigid, 3 in (76 mm) thick, polyisocyanurate with an R-value = 20.3 (U=0.279 W per sq m K).
E.
Lifting Mechanisms: Compression spring operators enclosed in telescopic tubes. The upper, outer tube prevents accumulation of moisture, grit, and debris inside the lower tube assembly. The lower tube interlocks with a flanged support shoe welded to curb assembly. Compression Spring Tubes: Anti-corrosive composite material
F.
Hardware:
1.
Heavy type 316 stainless steel pintle hinges.
2.
Latch: Enclosed two-point spring latch. Interior and exterior turn handles.
3.
Latch strike: Stamped component bolted to the curb assembly.
4.
Automatic Open Position Lock: Rigid hold open arm equipped with 1 in (25 mm) diameter red vinyl grip handle to permit easy release for closing.
5.
Roof hatch equipped with interior and exterior padlock hasps.
 
** NOTE TO SPECIFIER ** For highly corrosive environments or prolonged exposure to hot water or steam specify 316 stainless steel hardware. Delete hardware material not required,
 
6.
Hardware Material: Zinc plated and chromate sealed.
7.
Hardware Material: 316 stainless steel.
G.
Factory Finish: Mill finish aluminum.
 
** NOTE TO SPECIFIER ** Delete article if not required.
 
2.12
ROOF HATCHES TYPE NB
A.
Basis-of-Design Manufacturer: Type NB Single Leaf Roof Hatch as manufactured by The BILCO Company.
1.
Factory pre-assembled.
2.
Width: 30 in (762 mm). Length: 54 in (1372 mm). Length denotes hinge side.
B.
Performance Characteristics:
1.
Cover:
a.
Minimum Live Load: 40 lbs per sq ft (195.3 kg per sq m).
b.
Maximum Deflection: 1/150th of span or 20 lbs per sq ft (97.6 kg per sq m) wind uplift.
c.
Smooth and easy controlled operation through entire opening and closing arc.
d.
Operation not to be affected by temperature.
2.
Entire Roof Hatch: Weather tight. Fully welded corner joints on covers and curb
C.
Cover:
 
** NOTE TO SPECIFIER ** Delete material not required.
 
1.
Material: 14 gauge, 0.078 in (1.99 mm) paint bond G-90 galvanized steel.
2.
Material: 11 gauge, 0.091 in (2.30 mm) aluminum.
3.
Beaded Flange: 3 in (76 mm) with formed reinforcing members.
4.
Heavy extruded EPDM rubber gasket bonded to cover interior assuring a continuous seal with the top surface of the curb.
5.
Hardware: Bolted into heavy gauge channel reinforcing welded to the underside of the cover and concealed within the insulation space.
6.
Insulation: 1 in (25 mm) thick fiberglass. Covered and protected by a metal liner.
 
** NOTE TO SPECIFIER ** Delete material not required.
 
a.
Metal Liner: 22 gauge, 0.034 in (0.85 mm) paint bond G-90 galvanized steel.
b.
Metal Liner: 18 gauge, 0.040 in (1.02 mm) aluminum.
D.
Curb:
1.
Height: 12 in (305 mm).
 
** NOTE TO SPECIFIER ** Delete material not required.
 
2.
Material: 14 gauge, 0.078 in (1.99 mm) paint bond G-90 galvanized steel.
3.
Material: 11 gauge, 0.091 in (2.30 mm) aluminum.
4.
Formed with 3-1/2 in (89 mm) flange with 7/16 in (11 mm) holes provided for securing to the roof deck.
5.
Integral Metal Capflashing: Same gauge and material as curb and fully welded at the corners. Bil-Clip Flashing System: Stamped tabs, 6 in (153 mm) on center, bent inward to hold single ply roofing membrane securely in place.
6.
Insulation: Rigid, 1 in (25 mm) thick, high-density fiberboard on outside of curb.
E.
Lifting Mechanisms: Compression spring operators enclosed in telescopic tubes. The upper, outer tube prevents accumulation of moisture, grit, and debris inside the lower tube assembly. The lower tube interlocks with a flanged support shoe. Compression Spring Tubes: Anti-corrosive composite material.
 
** NOTE TO SPECIFIER ** Delete support shoe not required.
 
1.
Flanged Support Shoe, Aluminum: Welded to the curb assembly.
2.
Flanged Support Shoe, Steel: Through bolted to the curb assembly.
F.
Hardware:
1.
Heavy pintle hinges.
2.
Latch: Enclosed spring latch. Interior and exterior turn handles.
3.
Latch strike: Stamped component bolted to the curb assembly.
4.
Automatic Open Position Lock: Rigid hold open arm equipped with 1 in (25 mm) diameter red vinyl grip handle to permit easy release for closing.
5.
Roof hatch equipped with interior and exterior padlock hasps.
 
** NOTE TO SPECIFIER ** For highly corrosive environments or prolonged exposure to hot water or steam specify 316 stainless steel hardware. Delete hardware material not required,
 
6.
Hardware Material: Zinc plated and chromate sealed.
7.
Hardware Material: 316 stainless steel.
 
** NOTE TO SPECIFIER ** Delete factory finish not required.
 
G.
Factory Finish: Alkyd based red oxide primed steel.
H.
Factory Finish: Mill finish aluminum.
 
** NOTE TO SPECIFIER ** Delete article if not required.
 
2.13
ROOF HATCHES TYPE NB-50TB
A.
Basis-of-Design Manufacturer: Type NB-50TB Single Leaf Roof Hatch as manufactured by The BILCO Company.
1.
Factory pre-assembled.
2.
Width: 30 in (762 mm). Length: 54 in (1372 mm). Length denotes hinge side.
B.
Performance Characteristics:
1.
Cover:
a.
Minimum Live Load: 40 lbs per sq ft (195.3 kg per sq m).
b.
Maximum Deflection: 1/150th of span or 20 lbs per sq ft (97.6 kg per sq m) wind uplift.
c.
Smooth and easy controlled operation through entire opening and closing arc.
d.
Operation not to be affected by temperature.
2.
Entire Roof Hatch:
a.
Cover and curb shall be thermally broken to prevent heat transfer between interior and exterior surfaces.
b.
Weather tight. Fully welded corner joints on covers and curb
C.
Cover:
1.
Material: 11 gauge, 0.091 in (2.30 mm) aluminum.
2.
Beaded Flange: 5 in (127 mm) with formed reinforcing members.
3.
Heavy extruded EPDM rubber gasket bonded to cover interior assuring a continuous seal with the top surface of the curb.
4.
Hardware: Bolted into heavy gauge channel reinforcing welded to the underside of the cover and concealed within the insulation space.
5.
Insulation: 3 in (75 mm) thick polyisocyanurate with an R-value = 20.3 (U=0.279 W per sq m K). Covered and protected by 18 gauge (1 mm) aluminum liner.
D.
Curb:
1.
Height: 12 in (305 mm).
2.
Material: 11 gauge, 0.091 in (2.30 mm) aluminum.
3.
Formed with 5-1/2 in (140 mm) flange with 7/16 in (11 mm) holes provided for securing to the roof deck.
4.
Integral Metal Capflashing: Same gauge and material as curb and fully welded at the corners. Bil-Clip Flashing System: Stamped tabs, 6 in (152 mm) on center, bent inward to hold single ply roofing membrane securely in place.
5.
Insulation: Rigid, 3 in (76 mm) thick, polyisocyanurate with an R-value = 20.3 (U=0.279 W per sq m K).
E.
Lifting Mechanisms: Compression spring operators enclosed in telescopic tubes. The upper, outer tube prevents accumulation of moisture, grit, and debris inside the lower tube assembly. The lower tube interlocks with a flanged support shoe welded to curb assembly. Compression Spring Tubes: Anti-corrosive composite material.
F.
Hardware:
1.
Heavy type 316 stainless steel pintle hinges.
2.
Latch: Enclosed spring latch. Interior and exterior turn handles.
3.
Latch strike: Stamped component bolted to the curb assembly.
4.
Automatic Open Position Lock: Rigid hold open arm equipped with 1 in (25 mm) diameter red vinyl grip handle to permit easy release for closing.
5.
Roof hatch equipped with interior and exterior padlock hasps.
 
** NOTE TO SPECIFIER ** For highly corrosive environments or prolonged exposure to hot water or steam specify 316 stainless steel hardware. Delete hardware material not required,
 
6.
Hardware Material: Zinc plated and chromate sealed.
7.
Hardware Material: 316 stainless steel.
G.
Factory Finish: Mill finish aluminum.
 
** NOTE TO SPECIFIER ** Delete article if not required.
 
2.14
ROOF HATCHES TYPE NB-HZ
A.
Basis-of-Design Manufacturer: Type NB-HZ Single Leaf Roof Hatch as manufactured by The BILCO Company.
1.
Factory pre-assembled.
2.
Width: 30 in (762 mm). Length: 54 in (1372 mm). Length denotes hinge side.
B.
Performance Characteristics:
1.
Cover:
a.
Minimum Live Load: 40 lbs per sq ft (195.3 kg per sq m).
b.
Maximum Deflection: 1/150th of span or maximum design pressure of plus or minus 70 lbs per sq ft (341.8 kg per sq m) with a factor of safety of 2.
c.
Smooth and easy controlled operation through entire opening and closing arc.
d.
Operation not to be affected by temperature.
2.
Entire Roof Hatch:
a.
Weather tight. Fully welded corner joints on covers and curb.
b.
Miami-Dade Product approved (NOA No. 14-0708.07 Expiration Date: December 2, 2019), meeting large and small missile impact requirements. Florida Building Code; Florida Product Approval No. FL15110.
C.
Cover:
 
** NOTE TO SPECIFIER ** Delete material not required.
 
1.
Material: 14 gauge, 0.078 in (1.99 mm) paint bond G-90 galvanized steel.
2.
Material: 11 gauge, 0.091 in (2.30 mm) aluminum.
3.
Beaded flange: 3 in (76 mm) with formed reinforcing members.
4.
Heavy extruded EPDM rubber gasket bonded to cover interior assuring a continuous seal with the top surface of the curb.
5.
Hardware: Bolted into heavy gauge channel reinforcing welded to the underside of the cover and concealed within the insulation space.
6.
Insulation: 1 in (25 mm) thick fiberglass. Covered and protected by a metal liner.
 
** NOTE TO SPECIFIER ** Delete material not required.
 
a.
Metal Liner: 22 gauge, 0.034 in (0.85 mm) paint bond G-90 galvanized steel.
b.
Metal Liner: 18 gauge, 0.040 in (1.02 mm) aluminum.
D.
Curb:
1.
Height: 12 in (305 mm).
 
** NOTE TO SPECIFIER ** Delete material not required.
 
2.
Material: 14 gauge, 0.078 in (1.99 mm) paint bond G-90 galvanized steel.
3.
Material: 11 gauge, 0.091 in (2.30 mm) aluminum.
4.
Formed with 3-1/2 in (89 mm) flange with 7/16 in (11 mm) holes provided for securing to the roof deck.
5.
Integral Metal Capflashing: Same gauge and material as curb and fully welded at the corners. Bil-Clip Flashing System: Stamped tabs, 6 in (153 mm) on center, bent inward to hold single ply roofing membrane securely in place.
6.
Insulation: Rigid, 1 in (25 mm) thick, high-density fiberboard on outside of curb.
E.
Lifting Mechanisms: Compression spring operators enclosed in telescopic tubes. The upper, outer tube prevents accumulation of moisture, grit, and debris inside the lower tube assembly. The lower tube interlocks with a flanged support shoe. Compression Spring Tubes: Anti-corrosive composite material.
 
** NOTE TO SPECIFIER ** Delete support shoe not required.
 
1.
Flanged Support Shoe, Aluminum: Welded to the curb assembly.
2.
Flanged Support Shoe, Steel: Through bolted to the curb assembly.
F.
Hardware:
1.
Heavy pintle hinges.
2.
Latch: Enclosed two-point spring latch. Interior and exterior turn handles.
3.
Latch strike: Stamped component bolted to the curb assembly.
4.
Automatic Open Position Lock: Rigid hold open arm equipped with 1 in (25 mm) diameter red vinyl grip handle to permit easy release for closing.
5.
Roof hatch equipped with interior and exterior padlock hasps.
 
** NOTE TO SPECIFIER ** For highly corrosive environments or prolonged exposure to hot water or steam specify 316 stainless steel hardware. Delete hardware material not required,
 
6.
Hardware Material: Zinc plated and chromate sealed.
7.
Hardware Material: 316 stainless steel.
 
** NOTE TO SPECIFIER ** Delete factory finish not required.
 
G.
Factory Finish: Alkyd based red oxide primed steel.
H.
Factory Finish: Mill finish aluminum.
 
** NOTE TO SPECIFIER ** Delete article if not required.
 
2.15
ROOF HATCHES TYPE S
A.
Basis-of-Design Manufacturer: Type S Single Leaf Roof Hatch as manufactured by The BILCO Company.
1.
Factory pre-assembled.
2.
Width: 36 in (914 mm). Length: 30 in (762 mm). Length denotes hinge side.
B.
Performance Characteristics:
1.
Cover:
a.
Minimum Live Load: 40 lbs per sq ft (195.3 kg per sq m).
 
** NOTE TO SPECIFIER ** Pertains to galvanized steel (Type S-20) and aluminum (Type S-50) roof hatches. Delete if not required.
 
b.
Maximum Deflection: 1/150th of the span and a 140 lbs per sq ft (683.5 kg per sq m) wind uplift.
 
** NOTE TO SPECIFIER ** Pertains to stainless steel (Type S-90) roof hatches or roof hatches with an aluminum cover and galvanized steel curb (Type S-40). Delete if not required.
 
c.
Maximum Deflection: 1/150th of the span and a 20 lbs per sq ft (97.6 kg per sq m).
d.
Smooth and easy controlled operation through entire opening and closing arc.
e.
Operation not to be affected by temperature.
2.
Entire Roof Hatch:
a.
Weather tight. Fully welded corner joints on covers and curb.
 
** NOTE TO SPECIFIER ** Pertains to galvanized steel (Type S-20) and aluminum (Type S-50) roof hatches. Delete if not required.
 
b.
Miami-Dade Product approved (NOA No. 14-0708.07 Expiration Date: December 2, 2019), meeting large and small missile impact requirements.Florida building Code, Florida Product Approval No. FL15110.
C.
Cover:
 
** NOTE TO SPECIFIER ** Delete material not required.
 
1.
Material: 14 gauge, 0.078 in (1.99 mm) paint bond G-90 galvanized steel.
2.
Material: 11 gauge, 0.091 in (2.30 mm) aluminum.
3.
Beaded Flange: 3 in (76 mm) with formed reinforcing members.
4.
Heavy extruded EPDM rubber gasket bonded to cover interior assuring a continuous seal with the top surface of the curb.
5.
Hardware: Bolted into heavy gauge channel reinforcing welded to the underside of the cover and concealed within the insulation space.
6.
Insulation: 1 in (25 mm) thick fiberglass. Covered and protected by a metal liner.
 
** NOTE TO SPECIFIER ** Delete material not required.
 
a.
Metal Liner: 22 gauge, 0.034 in (0.85 mm) paint bond G-90 galvanized steel.
b.
Metal Liner: 18 gauge, 0.040 in (1.02 mm) aluminum.
D.
Curb:
1.
Height: 12 in (305 mm).
 
** NOTE TO SPECIFIER ** Delete material not required.
 
2.
Material: 14 gauge, 0.078 in (1.99 mm) paint bond G-90 galvanized steel.
3.
Material: 11 gauge, 0.091 in (2.30 mm) aluminum.
4.
Formed with 3-1/2 in (89 mm) flange with 7/16 in (11 mm) holes provided for securing to the roof deck.
5.
Integral Metal Capflashing: Same gauge and material as curb and fully welded at the corners. Bil-Clip Flashing System: Stamped tabs, 6 in (153 mm) on center, bent inward to hold single ply roofing membrane securely in place.
6.
Insulation: Rigid, 1 in (25 mm) thick, high-density fiberboard on outside of curb.
E.
Lifting Mechanisms: Compression spring operators enclosed in telescopic tubes. The upper, outer tube prevents accumulation of moisture, grit, and debris inside the lower tube assembly. The lower tube interlocks with a flanged support shoe. Compression Spring Tubes: Anti-corrosive composite material
 
** NOTE TO SPECIFIER ** Delete support shoe not required.
 
1.
Flanged Support Shoe, Aluminum: Welded to the curb assembly.
2.
Flanged Support Shoe, Steel: Through bolted to the curb assembly.
F.
Hardware:
1.
Heavy pintle hinges.
2.
Latch: Enclosed spring latch. Interior and exterior turn handles.
3.
Latch strike: Stamped component bolted to the curb assembly.
4.
Automatic Open Position Lock: Rigid hold open arm equipped with 1 in (25 mm) diameter red vinyl grip handle to permit easy release for closing.
5.
Roof hatch equipped with interior and exterior padlock hasps.
 
** NOTE TO SPECIFIER ** For highly corrosive environments or prolonged exposure to hot water or steam specify 316 stainless steel hardware. Delete hardware material not required,
 
6.
Hardware Material: Zinc plated and chromate sealed.
7.
Hardware Material: 316 stainless steel.
 
** NOTE TO SPECIFIER ** Delete factory finish not required.
 
G.
Factory Finish: Alkyd based red oxide primed steel.
H.
Factory Finish: Mill finish aluminum.
 
** NOTE TO SPECIFIER ** Delete article if not required.
 
2.16
ROOF HATCHES TYPE S-50TB
A.
Basis-of-Design Manufacturer: Type S-50TB Single Leaf Roof Hatch as manufactured by The BILCO Company.
1.
Factory pre-assembled.
2.
Width: 36 in (914 mm). Length: 30 in (762 mm). Length denotes hinge side.
B.
Performance Characteristics:
1.
Cover:
a.
Minimum Live Load: 40 lbs per sq ft (195.3 kg per sq m).
b.
Maximum Deflection: 1/150th of span or 20 lbs per sq ft (97.6 kg per sq m) wind uplift.
c.
Smooth and easy controlled operation through entire opening and closing arc.
d.
Operation not to be affected by temperature.
2.
Entire Roof Hatch:
a.
Cover and curb shall be thermally broken to prevent heat transfer between interior and exterior surfaces.
b.
Weather tight. Fully welded corner joints on covers and curb.
C.
Cover:
1.
Material: 11 gauge, 0.040 (2.30 mm) aluminum.
2.
Beaded Flange: 5 in (127 mm) with formed reinforcing members.
3.
Heavy extruded EPDM rubber gasket bonded to cover interior assuring a continuous seal with the top surface of the curb.
4.
Hardware: Bolted into heavy gauge channel reinforcing welded to the underside of the cover and concealed within the insulation space.
5.
Insulation: 3 in (76 mm) thick polyisocyanurate with an R-value = 20.3 (U=0.279 W per sq m K). Covered and protected by 18 gauge (1 mm) aluminum liner.
D.
Curb:
1.
Height: 12 in (305 mm).
2.
Material: 11 gauge, 0.091 in (2.30 mm) aluminum.
3.
Formed with 5-1/2 in (140 mm) flange with 7/16 in (11 mm) holes provided for securing to the roof deck.
4.
Integral Metal Capflashing: Same gauge and material as curb and fully welded at the corners. Bil-Clip Flashing System: Stamped tabs, 6 in (152 mm) on center, bent inward to hold single ply roofing membrane securely in place.
5.
Insulation: Rigid, 3 in (76 mm) thick, polyisocyanurate with an R-value = 20.3 (U=0.279 W per sq m K).
E.
Lifting Mechanisms: Compression spring operators enclosed in telescopic tubes. The upper, outer tube prevents accumulation of moisture, grit, and debris inside the lower tube assembly. The lower tube interlocks with a flanged support shoe welded to curb assembly.
1.
Compression Spring Tubes: Anti-corrosive composite material
F.
Hardware:
1.
Heavy type 316 stainless steel pintle hinges.
2.
Latch: Enclosed two-point spring latch. Interior and exterior turn handles.
3.
Latch strike: Stamped component bolted to the curb assembly.
4.
Automatic Open Position Lock: Rigid hold open arm equipped with 1 in (25 mm) diameter red vinyl grip handle to permit easy release for closing.
5.
Roof hatch equipped with interior and exterior padlock hasps.
 
** NOTE TO SPECIFIER ** For highly corrosive environments or prolonged exposure to hot water or steam specify 316 stainless steel hardware. Delete hardware material not required,
 
6.
Hardware Material: Zinc plated and chromate sealed.
7.
Hardware Material: 316 stainless steel.
G.
Factory Finish: Mill finish aluminum.
 
** NOTE TO SPECIFIER ** Delete article if not required.
 
2.17
ROOF HATCHES TYPE SEC
A.
Basis-of-Design Manufacturer: Type SEC Single Leaf Roof Hatch as manufactured by The BILCO Company.
1.
Factory pre-assembled.
2.
Width (in / mm): ______. Length (in / mm): ______. Length denotes hinge side.
B.
Performance Characteristics:
1.
Cover:
a.
Minimum Live Load: 40 lbs per sq ft (195.3 kg per sq m)
b.
Maximum Deflection: 1/150th of span or 20 lbs per sq ft (97.6 kg per sq m) wind uplift.
c.
Smooth and easy controlled operation through entire opening and closing arc.
d.
Operation not to be affected by temperature.
2.
Entire Roof Hatch: Weather tight. Fully welded corner joints on covers and curb
C.
Cover:
 
** NOTE TO SPECIFIER ** Delete material not required.
 
1.
Material: 3/16 in (5 mm) steel.
2.
Material: 3/16 in (5 mm) aluminum.
3.
Formed reinforcing members.
4.
Heavy extruded EPDM rubber gasket bonded to cover interior assuring a continuous seal with the top surface of the curb.
5.
Factory prepared to receive security detention lock.
a.
Manufacturer and Model: ______. Supplied and field installed by others.
 
** NOTE TO SPECIFIER ** Delete if not required.
 
b.
Factory installed 8 by 8 in (203 by 203 mm) bullet resistant view window, mounted in angle frame flush with top surface of the door leaf.
c.
Glazing Ballistic Rating: ______.
6.
Hardware: Bolted into heavy gauge channel reinforcing welded to the underside of the cover and concealed within the insulation space.
7.
Insulation: 1 in (25 mm) thick fiberglass. Covered and protected by a metal liner.
 
** NOTE TO SPECIFIER ** Delete material not required.
 
a.
Metal Liner: 22 gauge, 0.034 in (0.85 mm) paint bond G-90 galvanized steel.
b.
Metal Liner: 18 gauge, 0.040 in (1.02 mm) aluminum.
D.
Curb:
1.
Height: 12 in (305 mm).
 
** NOTE TO SPECIFIER ** Delete material not required.
 
2.
Material: 3/16 in (5 mm) steel.
3.
Material: 3/16 in (5 mm) aluminum.
4.
Formed with 3-1/2 in (89 mm) flange with 7/16 in (11 mm) holes provided for securing to the roof deck.
5.
Integral Metal Capflashing: Same gauge and material as curb and fully welded at the corners. Bil-Clip Flashing System: Stamped tabs, 6 in (152 mm) on center, bent inward to hold single ply roofing membrane securely in place.
6.
Insulation: Rigid, 1 in (25 mm) thick, high-density fiberboard on outside of curb.
E.
Lifting Mechanisms: Compression spring operators enclosed in telescopic tubes. The upper, outer tube prevents accumulation of moisture, grit, and debris inside the lower tube assembly. The lower tube interlocks with a flanged support shoe. Compression Spring Tubes: type 316 stainless steel.
 
** NOTE TO SPECIFIER ** Delete support shoe not required.
 
1.
Flanged Support Shoe, Aluminum: Welded to the curb assembly.
2.
Flanged Support Shoe, Steel: Through bolted to the curb assembly.
F.
Hardware:
1.
Heavy duty manganese bronze hinges.
2.
Latch: Factory prepared to receive security detention lock.
3.
Automatic Open Position Lock: Rigid hold open arm equipped with 1 in (25mm) diameter red vinyl grip handle to permit easy release for closing.
 
** NOTE TO SPECIFIER ** For highly corrosive environments or prolonged exposure to hot water or steam specify 316 stainless steel hardware. Delete hardware material not required,
 
4.
Hardware Material: Zinc plated and chromate sealed.
5.
Hardware Material: 316 stainless steel.
 
** NOTE TO SPECIFIER ** Delete factory finish not required.
 
G.
Factory Finish: Alkyd based red oxide primed steel.
H.
Factory Finish: Mill finish aluminum.
 
** NOTE TO SPECIFIER ** Delete article if not required.
 
2.18
ROOF HATCHES TYPE SS
A.
Basis-of-Design Manufacturer: Type SS Single Leaf Roof Hatch as manufactured by The BILCO Company.
1.
Factory pre-assembled.
2.
Width (in / mm): ______.
3.
Length (in / mm): ______. Length denotes hinge side.
B.
Performance Characteristics:
1.
Cover:
a.
Minimum Live Load: 40 lbs per sq ft (195.3 kg per sq m)
b.
Maximum Deflection: 1/150th of span or 20 lbs per sq ft (97.6 kg per sq m) wind uplift.
c.
Smooth and easy controlled operation through entire opening and closing arc.
d.
Operation not to be affected by temperature.
2.
Entire Roof Hatch: Weather tight. Fully welded corner joints on covers and curb
C.
Cover:
 
** NOTE TO SPECIFIER ** Delete material not required.
 
1.
Material: 14 gauge, 0.078 in (1.99 mm) paint bond G-90 galvanized steel.
2.
Material: 11 gauge, 0.091 in (2.30 mm) aluminum.
3.
Beaded Flange: 3 in (76 mm) with formed reinforcing members.
4.
Heavy extruded EPDM rubber gasket bonded to cover interior assuring a continuous seal with the top surface of the curb.
5.
Hardware: Bolted into heavy gauge channel reinforcing welded to the underside of the cover and concealed within the insulation space.
6.
Insulation: 1 in (25 mm) thick fiberglass. Covered and protected by a metal liner.
 
** NOTE TO SPECIFIER ** Delete material not required.
 
a.
Metal Liner: 22 gauge, 0.034 in (0.85 mm) paint bond G-90 galvanized steel.
b.
Metal Liner: 18 gauge, 0.040 in (1.02 mm) aluminum.
D.
Curb:
1.
Height: 12 in (305 mm).
 
** NOTE TO SPECIFIER ** Delete material not required.
 
2.
Material: 14 gauge, 0.078 in (1.99 mm) paint bond G-90 galvanized steel.
3.
Material: 11 gauge, 0.091 in (2.30 mm) aluminum.
4.
Formed with 3-1/2 in (89 mm) flange with 7/16 in (11 mm) holes provided for securing to the roof deck.
5.
Integral Metal Capflashing: Same gauge and material as curb and fully welded at the corners. Bil-Clip Flashing System: Stamped tabs, 6 in (153 mm) on center, bent inward to hold single ply roofing membrane securely in place.
6.
Insulation: Rigid, 1 in (25 mm) thick, high-density fiberboard on outside of curb.
E.
Lifting Mechanisms: Compression spring operators enclosed in telescopic tubes. The upper, outer tube prevents accumulation of moisture, grit, and debris inside the lower tube assembly. The lower tube interlocks with a flanged support shoe. Compression Spring Tubes: Anti-corrosive composite material
 
** NOTE TO SPECIFIER ** Delete support shoe not required.
 
1.
Flanged Support Shoe, Aluminum: Welded to the curb assembly.
2.
Flanged Support Shoe, Steel: Through bolted to the curb assembly.
F.
Hardware:
1.
Heavy pintle hinges.
2.
Latch: Enclosed spring latch. Interior and exterior turn handles.
3.
Latch strike: Stamped component bolted to the curb assembly.
4.
Automatic Open Position Lock: Rigid hold open arm equipped with 1 in (25mm) diameter red vinyl grip handle to permit easy release for closing.
5.
Roof hatch equipped with interior and exterior padlock hasps.
 
** NOTE TO SPECIFIER ** For highly corrosive environments or prolonged exposure to hot water or steam specify 316 stainless steel hardware. Delete hardware material not required,
 
6.
Hardware Material: Zinc plated and chromate sealed.
7.
Hardware Material: 316 stainless steel.
 
** NOTE TO SPECIFIER ** Delete factory finish not required.
 
G.
Factory Finish: Alkyd based red oxide primed steel.
H.
Factory Finish: Mill finish aluminum.
 
** NOTE TO SPECIFIER ** Delete article if not required.
 
2.19
ROOF HATCHES TYPE SS-50TB
A.
Basis-of-Design Manufacturer: Type SS-50TB Single Leaf Roof Hatch as manufactured by The BILCO Company.
1.
Factory pre-assembled.
2.
Width (in / mm): ______.
3.
Length (in / mm): ______. Length denotes hinge side.
B.
Performance Characteristics:
1.
Cover and curb shall be thermally broken to prevent heat transfer between interior and exterior surfaces.
2.
Cover:
a.
Minimum Live Load: 40 lbs per sq ft (195.3 kg per sq m)
b.
Maximum Deflection: 1/150th of span or 20 lbs per sq ft (97.6 kg per sq m) wind uplift.
c.
Smooth and easy controlled operation through entire opening and closing arc.
d.
Operation not to be affected by temperature.
3.
Entire Roof Hatch:
a.
Cover and curb shall be thermally broken to prevent heat transfer between interior and exterior surfaces.
b.
Weather tight. Fully welded corner joints on covers and curb.
C.
Cover:
1.
Material: 11 gauge, 0.091 in (2.30 mm) aluminum.
2.
Beaded Flange: 5 in (127 mm) with formed reinforcing members.
3.
Heavy extruded EPDM rubber gasket bonded to cover interior assuring a continuous seal with the top surface of the curb.
4.
Hardware: Bolted into heavy gauge channel reinforcing welded to the underside of the cover and concealed within the insulation space.
5.
Insulation: 3 in (76 mm) thick polyisocyanurate with an R-value = 20.3 (U=0.279 W per sq m K). Covered and protected by an 18 gauge, 0.040 in (1.02 mm) aluminum liner.
D.
Curb:
1.
Height: 12 in (305 mm).
2.
Material: 11 gauge, 0.091 in (2.30 mm) aluminum.
3.
Formed with 5-1/2 in (140 mm) flange with 7/16 in (11 mm) holes provided for securing to the roof deck.
4.
Integral Metal Capflashing: Same gauge and material as curb and fully welded at the corners. Bil-Clip Flashing System: Stamped tabs, 6 in (152 mm) on center, bent inward to hold single ply roofing membrane securely in place.
5.
Insulation: Rigid, 3 in (76 mm) thick, polyisocyanurate with an R-value = 20.3 (U=0.279 W per sq m K).
E.
Lifting Mechanisms: Compression spring operators enclosed in telescopic tubes. The upper, outer tube prevents accumulation of moisture, grit, and debris inside the lower tube assembly. The lower tube interlocks with a flanged support shoe welded to the curb assembly. Compression Spring Tubes: Anti-corrosive composite material.
F.
Hardware:
1.
Heavy type 316 stainless steel pintle hinges.
2.
Latch: Enclosed two-point spring latch. Interior and exterior turn handles.
3.
Latch strike: Stamped component bolted to the curb assembly.
4.
Automatic Open Position Lock: Rigid hold open arm equipped with 1 in (25 mm) diameter red vinyl grip handle to permit easy release for closing.
5.
Roof hatch equipped with interior and exterior padlock hasps.
 
** NOTE TO SPECIFIER ** For highly corrosive environments or prolonged exposure to hot water or steam specify 316 stainless steel hardware. Delete hardware material not required,
 
6.
Hardware Material: Zinc plated and chromate sealed.
7.
Hardware Material: 316 stainless steel.
G.
Factory Finish: Mill finish aluminum.
 
** NOTE TO SPECIFIER ** Delete article if not required.
 
2.20
ROOF HATCHES TYPE VM
A.
Basis-of-Design Manufacturer: Type VM Single Leaf Roof Hatch as manufactured by The BILCO Company.
1.
Factory pre-assembled except handles which are supplied for field installation.
 
** NOTE TO SPECIFIER ** Delete models not required.
 
2.
Model S-VM:
a.
Width: 36 inches (914 mm).
b.
Length: 30 inches (762 mm). Length denotes hinge side.
3.
Model NB-VM:
a.
Width: 30 inches (762 mm).
b.
Length: 54 inches (1372 mm). Length denotes hinge side.
4.
Model L-VM:
a.
Width: 30 inches (762 mm).
b.
Length: 96 inches (2438 mm). Length denotes hinge side.
5.
Model E-VM:
a.
Width: 36 inches (914 mm).
b.
Length: 36 inches (914 mm). Length denotes hinge side.
B.
Performance Characteristics:
1.
Cover:
a.
Minimum Live Load: 40 lbs per sq ft (195.3 kg per sq m)
b.
Maximum Deflection: 1/150th of span or 20 lbs per sq ft (97.6 kg per sq m) wind uplift.
c.
Smooth and easy controlled operation through entire opening and closing arc.
d.
Operation not to be affected by temperature.
2.
Entire Roof Hatch: Weather tight. Fully welded corner joints on covers and curb
C.
Cover:
 
** NOTE TO SPECIFIER ** Delete material not required.
 
1.
Material: 14 gauge, 0.078 in (1.99 mm) paint bond G-90 galvanized steel.
2.
Material: 11 gauge, 0.091 in (2.30 mm) aluminum.
3.
Material: 14 gauge, 0.078 in (1.99 mm) type 304 stainless steel.
4.
Beaded Flange: 3 in (76 mm) with formed reinforcing members.
5.
Heavy extruded EPDM rubber gasket bonded to cover interior assuring a continuous seal with the top surface of the curb.
6.
Hardware: Bolted into heavy gauge channel reinforcing welded to the underside of the cover and concealed within the insulation space.
7.
Insulation: 1 in (25 mm) thick fiberglass. Covered and protected by a metal liner.
 
** NOTE TO SPECIFIER ** Delete material not required.
 
a.
Metal Liner: 22 gauge, 0.034 in (0.85 mm) paint bond G-90 galvanized steel.
b.
Metal Liner: 18 gauge, 0.040 in (1.02 mm) aluminum.
c.
Metal Liner: 22 gauge, 0.034 in (0.85 mm) type 304 stainless steel.
D.
Curb:
1.
Height: 4 in (101 mm).
 
** NOTE TO SPECIFIER ** Delete material not required.
 
2.
Material: 14 gauge, 0.078 in (1.99 mm) paint bond G-90 galvanized steel.
3.
Material: 11 gauge, 0.091 in (2.30 mm) aluminum.
4.
Material: 14 gauge, 0.078 in (1.99 mm) type 304 stainless steel.
5.
Formed with 2-5/8 in (67 mm) mounting flange and 1-1/2 in (38 mm) apron, fully welded at the corners. Stainless steel anchor clips are included.
6.
Insulation: Rigid, 1 in (25 mm) thick, rigid fiberglass throughout curb.
E.
Lifting Mechanisms: Compression spring operators enclosed in telescopic tubes. The upper, outer tube prevents accumulation of moisture, grit, and debris inside the lower tube assembly. The lower tube interlocks with a flanged support shoe. Compression Spring Tubes: Anti-corrosive composite material.
 
** NOTE TO SPECIFIER ** Delete support shoe not required.
 
1.
Flanged Support Shoe, Aluminum: Welded to the curb assembly.
2.
Flanged Support Shoe, Steel: Through bolted to the curb assembly.
F.
Hardware:
1.
Heavy pintle hinges.
2.
Latch: Enclosed spring latch. Interior and exterior turn handles.
3.
Latch strike: Stamped component bolted to the curb assembly.
4.
Automatic Open Position Lock: Rigid hold open arm equipped with 1 in (25mm) diameter red vinyl grip handle to permit easy release for closing.
5.
Roof hatch equipped with interior and exterior padlock hasps.
 
** NOTE TO SPECIFIER ** For highly corrosive environments or prolonged exposure to hot water or steam specify 316 stainless steel hardware. Delete hardware material not required,
 
6.
Hardware Material: Zinc plated and chromate sealed.
7.
Hardware Material: 316 stainless steel.
 
** NOTE TO SPECIFIER ** Delete factory finish not required.
 
G.
Factory Finish: Alkyd based red oxide primed steel.
H.
Factory Finish: Mill finish aluminum.
I.
Factory Finish: Sand blasted stainless steel.
 
** NOTE TO SPECIFIER ** Delete article if not required.
 
2.21
ROOF HATCHES RAIL SYSTEM
 
** NOTE TO SPECIFIER ** Bilco Bil-Guard fixed hatch railing system provides a permanent means of fall protection for roof hatch openings.
 
A.
Basis-of-Design: Bil-Guard 2.0 Roof Hatch Railing System as manufactured by The BILCO Company.
1.
Field assembled.
 
** NOTE TO SPECIFIER ** Delete models not required.
 
2.
Model RL2-S.
3.
Model RL2-NB.
4.
Model RL2-L.
5.
Model RL2-E.
6.
Model RL2-F.
B.
Standards Compliance: OSHA 29 CFR 1910.23.
C.
Performance Characteristics:
1.
Meet OSHA strength requirements with a factor-of-safety of two.
2.
High visibility safety yellow color powder coat paint finish.
3.
Attach to capflashing of roof hatch and not penetrating any roofing material.
4.
Corrosion resistant construction; five year warranty.
5.
Self-closing gate.
D.
Posts and Rails: 1-1/4 inches (32 mm) schedule 40 pipe in 6061 T6 aluminum alloy.
E.
Hardware:
1.
Mounting Brackets: Curb mounting brackets and teardrop brackets are 6063 T5 aluminum extrusion.
2.
Hinges: type 316 stainless steel spring hinges.
3.
Lock: Cast aluminum with interior and exterior release mechanisms.
4.
Fasteners: type 316 stainless steel.
 
** NOTE TO SPECIFIER ** Delete article if not required.
 
2.22
LADDER SAFTEY POSTS TYPE LU
A.
Basis-of-Design: Type LU Ladder Safety Post as manufactured by The BILCO Company.
 
** NOTE TO SPECIFIER ** Delete models not required.
 
1.
Model: LU-1. Factory pre-assembled.
2.
Model: LU-2. Factory pre-assembled.
3.
Model: LU-3. Factory pre-assembled.
4.
Model: LU-4. Factory pre-assembled.
B.
Performance Characteristics:
1.
Automatic locking when tubular post is fully extended.
2.
Controlled upward and downward movement.
3.
Release Lever: Disengages post allowing return to lowered position.
4.
Adjustable Mounting Brackets: Fitting ladder rung spacing up to 14 in (356 mm) on center.
5.
Clamp Brackets: Accommodating ladder rungs up to 1-3/4 in (44 mm) in diameter.
 
**NOTE TO SPECIFIER ** Pertains to Models LU-1. Delete if not required.
 
C.
Post: High strength steel square tubing. Pull up loop provided at upper end of post facilitating raising of post. Factory Finish: Yellow powder coat steel.
 
**NOTE TO SPECIFIER ** Pertains to Model LU-2. Delete if not required.
 
D.
Post: High strength steel square tubing. Pull up loop provided at upper end of post facilitating raising of post. Factory Finish: Hot dip galvanized steel.
 
**NOTE TO SPECIFIER ** Pertains to Model LU-3. Delete if not required.
 
E.
Post: 30 stainless steel square tubing. Pull up loop provided at upper end of post facilitating raising of post. Factory Finish: Mill finish stainless steel.
 
**NOTE TO SPECIFIER ** Pertains to Model LU-4. Delete if not required.
 
F.
Post: Aluminum square tubing. Pull up loop provided at upper end of post facilitating raising of post. Factory Finish: Mill finish aluminum.
 
**NOTE TO SPECIFIER ** Pertains to Models LU-1, LU-2, and LU-4. Delete if not required.
 
G.
Spring Balancing: Stainless steel mechanism providing smooth, easy, controlled operation, raising and lowering the safety post.
 
**NOTE TO SPECIFIER ** Pertains to Model LU-3. Delete if not required.
 
H.
Spring Balancing: Special alloy mechanism providing smooth, easy, controlled operation, raising and lowering the safety post.
I.
Mounting Hardware: Type 316 stainless steel.
PART 3 EXECUTION
 
3.1
EXAMINATION
A.
Do not begin installation until substrates and openings have been properly prepared.
B.
If substrate preparation is the responsibility of another installer, notify Architect of unsatisfactory preparation before proceeding.
3.2
PREPARATION
A.
Clean surfaces thoroughly prior to installation.
B.
Prepare surfaces using the methods recommended by the manufacturer for achieving the best result for the substrate under the project conditions.
3.3
INSTALLATION
A.
Install in accordance with manufacturer's instructions. Test for proper operation.
3.4
PROTECTION
A.
After installation, clean as recommended by the manufacturer.
B.
Remove and legally dispose of construction debris from project site.
C.
Protect installed products until completion of project.
D.
Touch-up, repair or replace damaged products before Substantial Completion.
END OF SECTION