SECTION 07 72 33
ROOF HATCHES AND SAFETY PRODUCTS
** NOTE TO SPECIFIER ** The BILCO Company; roof hatch, ladder access, ship stair access, service stair access, equipment access, roof hatch safety railings, roof hatch safety post, skylight roof hatch, floor doors, automatic smoke vent, fire rated floor doors, floor access for finished flooring.
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: https://www.bilco.com
[ Click Here ] for additional information.
The BILCO Company is now a part of Quanex. Quanex (NYSE: NX), a global, publicly traded manufacturing company serving OEMs in the fenestration, hardware, cabinetry, solar, refrigeration, security, construction, and outdoor products markets. We are A Part of Something Bigger.
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GENERAL
SECTION INCLUDES
** NOTE TO SPECIFIER ** DELETE ITEMS BELOW NOT REQUIRED FOR PROJECT.
Roof hatches for ladder access.
Ladder safety post.
Roof hatch rail system.
RELATED SECTIONS
** NOTE TO SPECIFIER ** DELETE SECTIONS BELOW NOT RELEVANT TO THIS PROJECT; ADD OTHERS AS REQUIRED.
Section 07 72 36 - Automatic Smoke Vents.
Section 08 31 23 - Floor Access Doors.
SUBMITTALS
Submit under provisions of Section 01 30 00.
Product Data: Submit manufacturer's product data.
Shop Drawings: Submit shop drawings including profiles, accessories, location, adjacent construction interface, and dimensions.
Warranty: Submit executed copy of manufacturer's standard warranty.
QUALITY ASSURANCE
Manufacturer Qualifications: Company specializing in manufacturing products specified in this section with a minimum of five years documented experience.
Installer Qualifications: Company specializing in performing Work of this section with minimum two years documented experience with projects of similar scope and complexity.
Manufacturer's Quality System: Registered to ISO 9001 Quality Standards including in-house engineering for product design activities.
DELIVERY, STORAGE, AND HANDLING
Deliver products in manufacturer's original packaging. Store materials in a dry, protected, well-vented area. Inspect product upon receipt and report damaged material immediately to delivering carrier and note such damage on the carrier's freight bill of lading.
WARRANTY
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.
PRODUCTS
MANUFACTURERS
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: https://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.
Substitutions: Not permitted.
Requests for substitutions will be considered in accordance with the provisions of Section 01 25 00.
** NOTE TO SPECIFIER ** RETAIN THE LADDER ACCESS TYPE APPROPRIATE FOR PROJECT.
ROOF HATCHES FOR LADDER ACCESS
Performance Characteristics:
Reinforce cover to support a minimum live load of 40 psf (195 kg/m2) with a maximum deflection of 1/150th of the span or 20 psf (97 kg/m2) wind uplift.
Cover Operation: Smooth and easy with controlled operation throughout the entire arc of opening and closing and unaffected by temperature.
Weathertight with fully welded corner joints on cover and curb.
** NOTE TO SPECIFIER ** RETAIN FOLLOWING WHEN ACCESS HATCHES REQUIRE MIAMI DADE APPROVAL.
Compliance Documentation:
Valid Notice of Acceptance (NOA) by Miami-Dade County Product Control Section.
Product approval (FL) by Florida Building Council regarding compliance to Florida Building Code.
**NOTE TO SPECIFIER ** DELETE PRODUCT TYPES AND CHARACTERISTICS NOT REQUIRED.
Basis-of-Design Manufacturer: Type S Roof Hatch-Ladder Access by The BILCO Company, P.O. Box 1203, New Haven, CT 06505, 1-800-366-6530, Fax: 1-203-535-1582, Web: www.bilco.com.
Size (WxL): 36 x 30 inches (914 mm x 762 mm).
Curb Height: 12 inches (305 mm).
**NOTE TO SPECIFIER ** SELECT COVER AND FRAMEMATERlAL APPROPRIATE TO PROJECT AND LOCATION.
Model S-20 Cover and Frame: Galvannealed steel, 14 gauge (2 mm).
Model S-20HZ Miami Dade Approved Cover and Frame: Galvannealed steel, 14 gauge (2 mm).
Model S-40 Cover and Frame: Aluminum, 11 gauge (2.3 mm) cover and galvannealed steel, 14 gauge (2 mm) frame.
Model S-50 Cover and Frame: Aluminum, 11 gauge (2.3 mm).
Model S-50HZ Miami Dade Approved Cover and Frame: Aluminum, 11 gauge (2.3 mm).
Model S-50TB Thermally Broken Cover and Frame: Aluminum, 11 gauge (2.3 mm).
Model S-90 Cover and Frame: Stainless steel, 14 gauge (2 mm) Type 304.
Basis-of-Design Manufacturer: Type E Roof Hatch-Ladder Access by The BILCO Company, P.O. Box 1203, New Haven, CT 06505, 1-800-366-6530, Fax: 1-203-535-1582, Web: www.bilco.com.
Size (WxL): 36 x 36 inches (914 x 914 mm).
Curb Height: 12 inches (305 mm).
**NOTE TO SPECIFIER ** SELECT COVER AND FRAME MATERIAL APPROPRIATE TO PROJECT AND LOCATION.
Model E-20 Cover and Frame: Galvannealed steel, 14 gauge (2 mm).
Model E-20HZ Miami Dade Approved Cover and Frame: Galvannealed steel, 14 gauge (2 mm).
Model E-40 Cover and Frame: Aluminum, 11 gauge (2.3 mm) cover and galvannealed steel, 14 gauge (2 mm) frame.
Model E-50 Cover and Frame: Aluminum, 11 gauge (2.3 mm).
Model E-50HZ Miami Dade Approved Cover and Frame: Aluminum, 11 gauge (2.3 mm).
Model E-50TB Thermally Broken Cover and Frame: Aluminum, 11 gauge (2.3 mm).
Model E-90 Cover and Frame: Stainless steel, 14 gauge (2 mm) Type 304.
Basis-of-Design Manufacturer: Type NB Ship Stair Access Hatch by The BILCO Company, P.O. Box 1203, New Haven, CT 06505, 1-800-366-6530, Fax: 1-203-535-1582, Web: www.bilco.com.
Size (WxL): 30 x 54 inches (762 mm x 1372mm).
Curb Height: 12 inches (305 mm).
**NOTE TO SPECIFIER ** SELECT COVER AND FRAMEMATERlAL APPROPRIATE TO PROJECT AND LOCATION.
Model NB-20 Cover and Frame: Galvannealed steel, 14 gauge (2 mm). (NB-20)
Model NB-20HZ Miami Dade Approved Cover and Frame: Galvannealed steel, 14 gauge (2 mm).
Model NB-40 Cover and Frame: Aluminum, 11 gauge (2.3 mm) cover and galvannealed steel, 14 gauge (2 mm) frame.
Model NB-50 Cover and Frame: Aluminum, 11 gauge (2.3 mm).
Model NB-50HZ Miami Dade Approved Cover and Frame: Aluminum, 11 gauge (2.3 mm).
Model NB-90 Cover and Frame: Stainless steel, 14 gauge (2 mm) Type 304.
Model NB-50TB Thermally Broken Cover and Frame: Aluminum, 11 gauge (2.3 mm).
Basis-of-Design Manufacturer: Type GS Roof Hatch- Ladder Access with Dome Cover by The BILCO Company, P.O. Box 1203, New Haven, CT 06505, 1-800-366-6530, Fax: 1-203-535-1582, Web: www.bilco.com.
Size (WxL): 36 x 30 inches (914mm x 762mm).
Curb Height: 12 inches (305 mm).
**NOTE TO SPECIFIER ** SELECT COVER AND FRAME MATERIAL APPROPRIATE TO PROJECT AND LOCATION.
Model GS-50 Cover and Frame: Aluminum, 11 gauge (2.3 mm).
Model GS-50TB Thermally Broken Cover and Frame: Aluminum, 11 gauge (2.3 mm).
Beaded Flange: Minimum 3 inch (76 mm) beaded flange.
Polycarbonate dome framed with rigid extruded aluminum and coated for UV resistance.
Basis-of-Design Manufacturer: Type L Service Stair Access by The BILCO Company, P.O. Box 1203, New Haven, CT 06505, 1-800-366-6530, Fax: 1-203-535-1582, Web: www.bilco.com.
Size (WxL): 30 x 96 inches (762 mm x 2438 mm).
Curb Height: 12 inches (305 mm).
**NOTE TO SPECIFIER ** SELECT COVER AND FRAME MATERIAL APPROPRIATE TO PROJECT AND LOCATION.
Model L-20 Cover and Frame: Galvannealed steel, 14 gauge (2 mm).
Model L-40 Cover and Frame: Aluminum, 11 gauge (2.3 mm) cover and galvannealed steel, 14 gauge (2 mm) frame.
Model L-50 Cover and Frame: Aluminum, 11 gauge (2.3 mm).
Model L-90 Cover and Frame: Stainless steel, 14 gauge (2 mm) Type 304.
Model L-50TB Thermally Broken Cover and Frame: Aluminum, 11 gauge (2.3 mm).
Model L-50HZ Miami Dade Approved Cover and Frame: Aluminum, 11 gauge (2.3 mm).
Basis-of-Design Manufacturer: Type D (Double Leaf) Equipment Access Roof Hatch by The BILCO Company, P.O. Box 1203, New Haven, CT 06505, 1-800-366-6530, Fax: 1-203-535-1582, Web: www.bilco.com.
Size: Custom size, refer to Drawings.
Curb Height: 12 inches (305 mm).
**NOTE TO SPECIFIER ** SELECT COVER AND FRAMEMATERlAL APPROPRIATE TO PROJECT AND LOCATION.
Model D-20 Cover and Frame: Galvannealed steel, 14 gauge (2 mm).
Model D-40 Cover and Frame: Aluminum, 11 gauge (2.3 mm) cover and galvannealed steel, 14 gauge (2 mm) frame.
Model D-50 Cover and Frame: Aluminum, 11 gauge (2.3 mm).
Model D-90 Cover and Frame: Stainless steel, 14 gauge (2 mm) Type 304.
Model D-50T Thermally Enhanced Cover and Frame: Aluminum, 11 gauge (2.3 mm).
Basis-of-Design Manufacturer: Type F Equipment Access Roof Hatch by The BILCO Company, P.O. Box 1203, New Haven, CT 06505, 1-800-366-6530, Fax: 1-203-535-1582, Web: www.bilco.com.
Size (WxL): 48 x 48 inches (1219 x 1219 mm).
Curb Height: 12 inches (305 mm).
**NOTE TO SPECIFIER ** SELECT COVER AND FRAME MATERIAL APPROPRIATE TO PROJECT AND LOCATION.
Model F-40 Cover and Frame: Aluminum, 11 gauge (2.3 mm) cover and galvannealed steel, 14 gauge (2 mm) frame.
Model F-50 Cover and Frame: Aluminum, 11 gauge (2.3 mm).
Model F-50TB Thermally Broken Cover and Frame: Aluminum, 11 gauge (2.3 mm).
** NOTE TO SPECIFIER ** VERSAMOUNT IS A REPLACEMENT HATCH. DELETE THE FOLLOWING IF NOT REQUIRED.
Basis-of-Design Manufacturer: Type VM Versamount Access Roof Hatch by The BILCO Company, P.O. Box 1203, New Haven, CT 06505, 1-800-366-6530, Fax: 1-203-535-1582, Web: www.bilco.com.
Type S Size (WxL): 36 x 30 inches (914 x 762 mm)
Type NB Size (WxL): 30 x 54 inches (762 mm x 1372mm).
Type L Size (WxL): 30 x 96 inches (762 mm x 2438 mm).
Curb Height (WxL): 4 inches (100 mm).
**NOTE TO SPECIFIER ** SELECT COVER AND FRAME MATERIAL APPROPRIATE TO PROJECT AND LOCATION.
Model 20VM Cover and Frame: Galvannealed steel, 14 gauge (2 mm).
Model 50VM Cover and Frame: Aluminum, 11 gauge (2.3 mm).
Model 90VM Cover and Frame: Stainless steel, 14 gauge (2 mm) Type 304.
** NOTE TO SPECIFIER ** FOLLOWING IS USED FOR HIGH SECURITY APPLICATIONS SUCH AS CORRECTIONAL FACILITIES, BANKS, EMBASSIES, AND PHARMACEUTICAL BUIDLINGS. OPTIONS INCLUDE SECURITY GLAZING AND GUNPORTS. CONTACT THE MANUFACTURER FOR INFORMATION ON THESE OPTIONS.
Basis-of-Design Manufacturer: Type Security Service (SEC) Access Roof Hatch by The BILCO Company, P.O. Box 1203, New Haven, CT 06505, 1-800-366-6530, Fax: 1-203-535-1582, Web: www.bilco.com.
Curb Height: 12 inches (305 mm).
**NOTE TO SPECIFIER ** SELECT COVER AND FRAME MATERIAL APPROPRIATE TO PROJECT AND LOCATION.
Model S-20C Cover and Frame: Galvannealed steel, 0.196 inches (5 mm) thick.
Model E-20C Cover and Frame: Galvannealed steel, 0.196 inches (5 mm) thick.
Model NB-20C Cover and Frame: Galvannealed steel, 0.196 inches (5 mm) thick.
Model S-50C Cover and Frame: Aluminum, 0.196 inches (5 mm) thick.
Model E-50C Cover and Frame: Aluminum, 0.196 inches (5 mm) thick.
Model NB-50C Cover and Frame: Aluminum, 0.196 inches (5 mm) thick.
Hinges: Heavy duty manganese bronze.
Latch: Factory prepared for deadbolt detention lock. Coordinate with Section 08 71 00 - Door Hardware0 Door Hardware Schedule.
**NOTE TO SPECIFIER ** RETAIN THE FOLLOWING COMPONENTS FOR STANDARD ROOF ACCESS HATCHES.
ROOF HATCH COMPONENTS
Cover:
Insulation: Fiberglass, 1 inch (25 mm) thickness, fully covered and protected by a metal liner Fabricate with 3 inch (76 mm) beaded flange with formed reinforcing members.
Bond heavy extruded EPDM rubber gasket to cover interior to assure a continuous seal when compressed to the top surface of the curb.
Curb:
Insulation: Rigid, high-density fiberboard, 1 inch (25 mm) thickness on outside of curb.
Form with a 3-1/2 inch (89 mm) flange with 7/16 inch (11 mm) holes provided for securing to the roof deck.
Equip with integral metal capflashing of the same gauge and material as the curb, fully welded at the corners, that features the Bil-Clip flashing system, including stamped tabs, 6 inches (153 mm) on center, to be bent inward to hold single ply roofing membrane securely in place.
Lifting Mechanisms: Compression spring operators enclosed in telescopic tubes.
Hardware: Automatic locking in the open position with a rigid hold open arm equipped with a 1 inch (25 mm) diameter red vinyl grip handle to permit easy release for closing.
Hinges: Heavy pintle type.
** NOTE TO SPECIFIER **RETAIN TWO-POINT LATCH FOR TYPE L, D, AND MIAMI-DADE APPROVED HATCHES EXCEPT RETAIN SINGLE-POINT LATCH FOR MIAMI-DADE APPROVED TYPE S ACCESS HATCH.
Spring Latch: Enclosed two-point spring latch with interior and exterior turn handles.
Spring Latch: Enclosed single-point spring latch with interior and exterior turn handles.
Padlock Hasps: Interior and exterior.
Latch Strike: Stamped component bolted to the curb assembly.
Hardware Finish: Zinc plated and chromate sealed.
**NOTE TO SPECIFIER ** KEEP FINISH TYPE 316 FOR INSTALLATIONS IN HIGHLY CORROSIVE ENVIRONMENTS OR WHEN PROLONGED EXPOSURE TO HOT WATER OR STEAM IS ANTICIPATED.
Hardware Finish: Type 316 stainless steel hardware.
Bolt cover hardware into heavy gauge channel reinforcing welded to the underside of the cover and concealed within the insulation space.
** NOTE TO SPECIFIER ** DELETE FINISH BELOW THAT IS NOT REQUIRED.
Hatch Finish: Factory finish alkyd based red oxide primed steel.
Hatch Finish: Mill finish aluminum.
**NOTE TO SPECIFIER ** DELETE FOLLOWING IF NOT SPECIFYING THERMALLY BROKEN ROOF HATCHES.
ROOF HATCH COMPONENTS FOR THERMALLY BROKEN ROOF HATCHES
Cover:
Insulation: Minimum 3 inch (75 mm) thick polyisocyanurate with an R-value = 20.3 (U=0.279 W/m2K), fully covered and protected by an 18 gauge (1mm) aluminum liner.
Flange: Minimum 5 inch (102 mm) beaded flange with formed reinforcing members.
Bond heavy extruded EPDM rubber gasket to cover interior to assure a continuous seal when compressed to the top surface of the curb.
Curb:
Height: 12 inches (305 mm).
Insulation: Polyisocyanurate, 3 inches (75 mm) thick with an R-value = 20.3 (U=0.279 W/m2K).
Form with a 5-1/2" (114 mm) mounting flange with 7/16" (11 mm) holes provided for securing to the roof deck.
Equip with integral metal capflashing of the same gauge and material as the curb, fully welded at the corners, that features the Bil-Clip flashing system, including stamped tabs, 6 inches (153 mm) on center, to be bent inward to hold single ply roofing membrane securely in place.
Lifting Mechanisms:
Compression spring operators enclosed in telescopic tubes.
Automatic hold-open arm with grip handle release.
Hardware: Automatic locking in the open position with a rigid hold open arm equipped with a 1 inch (25 mm) diameter red vinyl grip handle to permit easy release for closing.
Hinges: Heavy pintle type.
** NOTE TO SPECIFIER **RETAIN TWO-POINT LATCH FOR TYPE L, D, AND MIAMI-DADE APPROVED HATCHES EXCEPT RETAIN SINGLE-POINT LATCH FOR MIAMI-DADE APPROVED TYPE S ACCESS HATCH.
Spring Latch: Enclosed single-point spring latch with interior and exterior turn handles.
Spring Latch: Enclosed two-point spring latch with interior and exterior turn handles.
Padlock Hasps: Interior and exterior.
Latch Strike: Stamped component bolted to the curb assembly.
Hardware Finish: Zinc plated and chromate sealed except hinges are Type 316 stainless steel.
**NOTE TO SPECIFIER ** KEEP BELOW FOR INSTALLATIONS IN HIGHLY CORROSIVE ENVIRONMENTS OR WHEN PROLONGED EXPOSURE TO HOT WATER OR STEAM IS ANTICIPATED.
Hardware Finish: Type 316 stainless steel hardware.
Bolt cover hardware into heavy gauge channel reinforcing welded to the underside of the cover and concealed within the insulation space.
Hatch Finish: Mill finish aluminum.
** NOTE TO SPECIFIER ** DELETE FOLLOWING IF NOT SPECIFYING ACCESS LADDERS IN HIGH WIND ZONES.
ROOF ACCESS COMPONENTS FOR LADDER ACCESS IN HIGH WIND ZONES
Cover:
Insulation: Fiberglass, 1 inch (25 mm) thickness, fully covered and protected by a metal liner
Fabricate with 3 inch (76 mm) beaded flange with formed reinforcing members.
Bond heavy extruded EPDM rubber gasket to cover interior to assure a continuous seal when compressed to the top surface of the curb.
Curb:
Height: 12 inches (305 mm).
Curb Insulation: Rigid, high-density fiberboard of 1 inch (25 mm) thickness on outside of curb.
Form with a 3-1/2 inch (89 mm) flange with 7/16 inch (11 mm) holes provided for securing to the roof deck.
Equip with integral metal capflashing of the same gauge and material as the curb, fully welded at the corners, that features the Bil-Clip flashing system, including stamped tabs, 6 inches (153 mm) on center, to be bent inward to hold single ply roofing membrane securely in place.
Lifting Mechanisms: Compression spring operators enclosed in telescopic tubes.
Hardware: Automatic locking in the open position with a rigid hold open arm equipped with a 1 inch (25 mm) diameter red vinyl grip handle to permit easy release for closing.
Hinges: Heavy pintle type.
** NOTE TO SPECIFIER **RETAIN TWO-POINT LATCH FOR TYPE L, D, AND MIAMI-DADE APPROVED HATCHES EXCEPT RETAIN SINGLE-POINT LATCH FOR MIAMI-DADE APPROVED TYPE S ACCESS HATCH.
Spring Latch: Enclosed two-point spring latch with interior and exterior turn handles.
Spring Latch: Enclosed single-point spring latch with interior and exterior turn handles.
Padlock Hasps: Interior and exterior.
Latch Strike: Stamped component bolted to the curb assembly.
Finish: Zinc plated and chromate sealed.
KEEP BELOW FOR INSTALLATIONS IN HIGHLY CORROSIVE ENVIRONMENTS OR WHEN PROLONGED EXPOSURE TO HOT WATER OR STEAM IS ANTICIPATED.
Finish: Type 316 stainless steel hardware.
Bolt cover hardware into heavy gauge channel reinforcing welded to the underside of the cover and concealed within the insulation space.
Finishes: Factory finish alkyd based red oxide primed steel.
Finishes: Mill finish aluminum.
** NOTE TO SPECIFIER ** BILCO TYPE LADDERUP® SAFETY POSTS PROVIDE EASIER, SAFER LADDER ACCESS THROUGH ROOF HATCHES, FLOOR ACCESS DOORS, AND MANHOLES. THIS TELESCOPING POST PERMANENTLY MOUNTS TO THE TOP TWO RUNGS OF ANY FIXED LADDER, PROVIDING A POSITIVE HAND-HOLD AND ENABLING THE USER TO ENTER OR EXIT AN OPENING IN AN UPRIGHT AND BALANCED POSITION.
LADDER SAFETY POST
Basis-of-Design Manufacturer: Type LU Ladder Safety Post by The BILCO Company, P.O. Box 1203, New Haven, CT 06505, 1-800-366-6530, Fax: 1-203-535-1582, Web: www.bilco.com.
Model LU-1: Steel post with yellow powder coat paint finish.
Model LU-2: Steel post with hot dip galvanized finish.
Model LU-3: Stainless steel post, Type 304 with sand blast finish.
Model LU-4: Aluminum post with mill finish.
Furnish and install pre-assembled ladder safety post where indicated on plans.
Performance characteristics:
Tubular post locks automatically when fully extended.
Safety post has controlled upward and downward movement.
Release lever disengages the post to allow it to be returned to its lowered position.
Post as adjustable mounting brackets to fit ladder rung spacing up to 14 inches (356 mm) on center and clamp brackets to accommodate ladder rungs up to 1-3/4 inches (44 mm) in diameter.
Post: High strength square tubing with a pull up loop at the upper end of the post to facilitate raising the post.
Balancing spring: Stainless steel.
Mounting Hardware: Type 316 stainless steel.
** NOTE TO SPECIFIER ** BILCO BIL-GUARD FIXED HATCH RAILING SYSTEM PROVIDES A PERMANENT MEANS OF FALL PROTECTION FOR ROOF HATCH OPENINGS. SYSTEM MEETS AND EXCEEDS OSHA FALL PROTECTION REGULATIONS (29 CFR 1910.29). BIL-GUARD® 2.0 MODELS ARE AVAILABLE FOR MOST ROOF HATCH AND AUTOMATIC FIRE VENT SIZES. FOR MORE INFORMATION, PLEASE VISIT OUR WEBSITE WWW.BILCO.COM OR CALL 1-800-366-6530.
ROOF HATCH RAIL SYSTEM
Basis-of-Design Manufacturer: Type Bil-Guard 2.0 Roof Hatch Railing System by The BILCO Company, P.O. Box 1203, New Haven, CT 06505, 1-800-366-6530, Fax: 1-203-535-1582, Web: www.bilco.com.
Hatch Rail System Performance Characteristics:
Finish: High visibility safety yellow powder coat paint finish.
Attach to roof hatch capflashing. Rail system shall not penetrate any roofing material.
Comply with the requirements of OSHA 29 CFR 1910.29 and meet OSHA strength requirements with a factor of safety of two.
Corrosion resistant construction with a five-year warranty.
Hinged gate with self closing gate hinge and positive latching system to ensure continuous barrier around the roof hatch.
Posts and Rails: 1-1/4 inch (32 mm) 6061 T6 schedule 40 aluminum pipe.
Hardware:
Mounting brackets: 3/8 inch (9 mm) thick extruded aluminum.
Pivoting post guides with compression fittings and latching mechanism: Cast aluminum.
Self-Closing Hinges: Type 316 stainless steel.
Fasteners: Type 316 stainless steel.
EXECUTION
EXAMINATION
Examine substrates and openings for compliance with requirements for installation tolerances and other conditions affecting performance. Proceed with installation only after unsatisfactory conditions have been corrected.
INSTALLATION
Install products in strict accordance with manufacturer's instructions and approved submittals. Locate units level, plumb, and in proper alignment with adjacent work.
Test units for proper function and adjust until proper operation is achieved.
Repair finishes damaged during installation.
Restore finishes so no evidence remains of corrective work.
ADJUSTING AND CLEANING
Clean exposed surfaces using methods acceptable to the manufacturer which will not damage finish.