SECTION 05 55 00 - Metal Stair Treads and Nosings

STAIR TREADS AND NOSINGS

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PART 1    GENERAL
1.1	SECTION INCLUDES
A.	Safety treads and nosings for stairs, including the following types:
1.	Extruded aluminum safety treads and nosings. (Spectra)
2.	Extruded aluminum safety treads and nosings for heavy use. (Supergrit)
3.	Photoluminescent aluminum safety treads and nosings. (Spectra NITEGLOW)
4.	Photoluminescent aluminum safety treads and nosings for heavy use. (Supergrit NITEGLOW)
5.	Renovation safety treads and nosings. (Flexmaster)
6.	Renovation safety treads and nosings for heavy use. (Stairmaster)
7.	Cast safety treads and nosings.
8.	Structural cast safety treads and nosings.
9.	Cast curb bar nosings.
1.2	RELATED SECTIONS
A.	Section 03 30 00 - Cast-in-Place Concrete.
B.	Section 05 51 00 - Metal Stairs.
1.3	REFERENCES
A.	Americans with Disabilities Act (ADA).
B.	ASTM International (ASTM):
1.	ASTM B 30 - Standard Specification for Copper Alloys in Ingot Form.
2.	ASTM D 635 - Standard Test Method for Rate of Burning and/or Extent and Time of Burning of Plastics in a Horizontal Position.
3.	ASTM D 4828 - Standard Test Methods for Practical Washability of Organic Coatings.
4.	ASTM D 3648 - Standard Practices for the Measurement of Radioactivity.
C.	International Standards Organization (ISO): ISO 17398 - Safety colors and safety signs -- Classification, performance and durability of safety signs.
D.	SMP 800C: Toxic gas sampling and analytical procedures.
E.	Pressure Sensitive Tape Council Standards (PSTC): PSTC101 Peel Adhesion of Pressure Sensitive Tape.
F.	Federal Test Method Standards: 501a - Standard for Fire Safety Criteria for Manufactured Home Installations, Sites, and Communities.
G.	Military Specification: Mil-D-17951E; Deck Covering, Lightweight, Nonslip, Abrasive Particle Coated Fabric, Film, Or Composite And Sealing Compound. 
H.	California Code of Regulations (CCR): California Title 24; Code for the Visually Impaired.
I.	New York City Building Code Reference Standards: RS 6-1 - Photoluminescent exit path markings.
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.
4.	Cleaning and maintenance instructions.
C.	Shop Drawings: Provide shop drawings indicating details of construction and installation.
D.	Selection Samples: Submit two sets of samples showing available colors, patterns, textures, and finishes.
E.	Verification Samples: For each product specified, two samples, representing actual materials.
1.5	QUALITY ASSURANCE
A.	Slip Resistance: Provide units that comply with authorities having jurisdiction, including but not limited to ADA, OSHA and local building codes and accessibility codes.
1.6	DELIVERY, STORAGE AND HANDLING
A.	Deliver, store and handle materials and products in strict compliance with manufacturer's instructions and recommendations and industry standards. Protect from damage.
B.	Store products in manufacturer's labeled packaging until ready for installation.
1.7	SEQUENCING AND SCHEDULING
A.	Conference: Convene a pre-installation conference to establish procedures to maintain optimum working conditions and to coordinate this work with related and adjacent work.
1.8	WARRANTY 
A.	Warranty for Safety Treads for Renovation: Manufacturer's standard limited warranty for materials and workmanship.
1.	Warranty Period: 3 years for Flexmaster Series.
2.	Warranty Period: 5 years for Stairmaster Series.
PART 2    PRODUCTS
2.1	MANUFACTURERS
A.	Acceptable Manufacturer: Wooster Products, Inc., which is located at:<BR />1000 Spruce St., P. O. Box 6005<BR />Wooster, OH 44691<BR />Toll Free Tel: 800-321-4936<BR />Tel: 330-264-2844<BR />Fax: 330-262-4151<BR />Email: request info (sales@wooster-products.com);Web: http://www.woosterproducts.com 
B.	Substitutions: Not permitted.
C.	Requests for substitutions will be considered in accordance with provisions of Section 01 60 00 - Product Requirements.
2.2	EXTRUDED ALUMINUM SAFETY TREADS AND NOSINGS
A.	Extruded Aluminum Safety Treads and Nosings: Spectra Safety Treads as manufactured by Wooster Products, Inc.
1.	Type: WP1; 3/4 inch (19 mm) width, 3/8 inch (9.5 mm) thickness.
2.	Type: WP1A; 3/4 inch (19 mm) width, 3/8 inch (9.5 mm) thickness.
3.	Type: WP2; 2-1/16 inches (5.25 mm) width, 3/8 inch (9.5 mm) thickness, nose 1-1/8 inches (28.5 mm) underside.
4.	Type: WP2C; 2-1/16 inches (5.25 mm) width, 3/8 inch (9.5 mm) thickness.
5.	Type: WP2J; 2-1/16 inches (5.25 mm) width, 3/8 inch (9.5 mm) thickness, nose 1/4 inch (6 mm) underside.
6.	Type: WP2JT; 2-1/16 (5.25 mm) inches width, 3/8 inch (9.5 mm) thickness.
7.	Type: WP2T; 2-1/16 inches (5.25 mm) width, 3/8 inch (9.5 mm) thickness, nose 1/4 inch (6 mm) underside.
8.	Type: WP24; 2-1/16 inches (5.25 mm) width, 3/8 inches thickness.
9.	Type: WP24A; 2-1/16 inches (5.25 mm) width, 3/8 inches thickness.
10.	Type: WP3; 3-1/16 inches (78 mm) width, 3/8 inch (9.5 mm) thickness, nose 1-1/8 inches (28.5 mm) underside.
11.	Type: WP3C; 3-1/16 inches (78 mm) width, 3/8 inch (9.5 mm) thickness, nose 1/4 inch (6 mm) underside.
12.	Type: WP3J; 3-1/16 inches (78 mm) width, 3/8 inch (9.5 mm) thickness.
13.	Type: WP3JT; WP3; 3-1/16 inches (78 mm) width, 3/8 inch (9.5 mm) thickness, nose 1-1/8 inches (28.5 mm) underside.
14.	Type: WP3SP; 3-1/16 inches (78 mm) width, 3/8 inch (9.5 mm) thickness, nose 1-1/8 inches (28.5 mm) underside with sure hold anchors
15.	Type: WP3T; 3-1/16 inches (78 mm) width, 3/8 inch (9.5 mm) thickness, nose 1/4 inch (6 mm) underside.
16.	Type: WP4C; 4-1/16 inches (103 mm) width, 3/8 inch (9.5 mm) thickness, nose 1/4 inch (6 mm) underside.
17.	Type: WP4J; 4-1/16 inches (103 mm) width, 3/8 inch (9.5 mm) thickness.
18.	Type: WP4T; 4-1/16 inches (103 mm) width, 3/8 inch (9.5 mm) thickness, nose 1/4 inch (6 mm) underside.
19.	Type: WP2003; with replaceable inserts, 4-1/16 inches (103 mm) width, 5/8 inch (16 mm) thickness.
20.	Type: WP-RN2-SP; 2 inches (51 mm) width, 1/2 inches (13 mm) thickness.
21.	Type: WP-RN3-SP; 2 inches (51 mm) width, 1/2 inches (13 mm) thickness.
22.	Tread Color: RD-6 Red.
23.	Tread Color: RD-5 Brick Red.
24.	Tread Color: R-13 Burgundy.
25.	Tread Color: OR-18 Orange.
26.	Tread Color: BR-3 Dk. Brown.
27.	Tread Color: BR-21 Brown.
28.	Tread Color: G-21 Lt. Green.
29.	Tread Color: G-8 Dk. Green.
30.	Tread Color: WH-9 Off White.
31.	Tread Color: B-1 Lt. Buff.
32.	Tread Color: BU-17 LT Blue.
33.	Tread Color: BU-10 Blue.
34.	Tread Color: SSY-10 Safety Yellow.
35.	Tread Color: SSO-10 Safety Orange.
36.	Tread Color: YG-19 Gold
37.	Tread Color: GY-5 Blue Gray.
38.	Tread Color: CA-5 Silver Gray.
39.	Tread Color: BL-1 Black.
40.	Length: ______________.
41.	Length: As indicated on Drawings.
a.	For Poured Concrete Stairs: Nosings terminate not more than 4 inches (101.6 mm) from ends of steps.
b.	For Concrete Filled Steel Pan Stairs: Nosings are full length of steps less 1/8 inch (3.05 mm) clearance. 
42.	General: Extruded aluminum base with abrasive filler.
a.	Materials: Type 6063-T5 extruded aluminum. 
b.	Anti-Slip Filler: Contain approximately 60 percent virgin grain Aluminum Oxide (AL2O3) abrasive.
c.	Binder: Fully cured resilient type epoxy. Epoxy binder to filler ratio to be 13 percent minimum. 
d.	Epoxy/Abrasive Filler:
1)	Color: Extends uniformly throughout filler.
2)	Securely bonded to the extruded aluminum base.
3)	Extends over the curved front edge of nosing and shall be. 
e.	Protective Tape: Factory applied.
f.	Nosings: Finish flush with the top of the traffic surface.
43.	Anchoring Hardware: Provide manufacturer's recommended anchoring hardware to achieve best results for substrate and application.
B.	Extruded Aluminum Safety Treads and Nosings for Heavy Use: Supergrit Stair Treads as manufactured by Wooster Products, Inc.
1.	Type: 121; 1-7/8 inches (48 mm) width, 1/4 inch (6 mm) thickness, nose 1/4 inch (6 mm) underside.
2.	Type: 121BF; 1-7/8 inches (48 mm) width, 1/4 inch (6 mm) thickness,
3.	Type: 122; 1-7/8 inches (48 mm) width, 1/4 inch (6 mm) thickness, nose 1-1/8 inches (28.5 mm) underside.
4.	Type: 131; 3 inches (76 mm) width, 1/4 inch (6 mm) thickness, nose 1/4 inch (6 mm) underside.
5.	Type: 132; 3 inches (76 mm) width, 1/4 inch (6 mm) thickness, nose 1-1/8 inches (28.5 mm) underside.
6.	Type: 133; 3 inches (76 mm) width, 1/4 inch (6 mm) thickness, 
a.	Nose: 1-3/4 inches (44 mm) underside.
b.	Nose: 1-1/2 inches (39 mm) underside.
c.	Nose: 1-1/4 inches (32 mm) underside.
7.	Type: 138; 3 inches (76 mm) width, 1/4 inch (6 mm) thickness, nose 1-1/8 inches (28.5 mm) underside.
8.	Type: 141; 4 inches (102 mm) width, 1/4 inch (6 mm) thickness, nose 1/4 inch (6 mm) underside.
9.	Type: 142; 4 inches (102 mm) width, 1/4 inch (6 mm) thickness, nose 1-1/8 inches (28.5 mm) underside.
10.	Type: 161; 6 inches (152 mm) width, 1/4 inch (6 mm) thickness, nose 1/4 inch (6 mm) underside, square back.
11.	Type: 231BF; 3 inches (76 mm) width, 1/4 inch (6 mm) thickness.
12.	Type: 232; 3 inches (76 mm) width, 1/4 inch (6 mm) thickness, nose 1-1/8 inches (28.5 mm) underside.
13.	Type: 238; 3 inches (76 mm) width, 1/4 inch (6 mm) thickness, nose 1-1/8 inches (28.5 mm) underside.
14.	Type: 241BF; 4 inches (102 mm) width, 1/4 inch (6 mm) thickness.
15.	Type: 242; 4 inches (102 mm) width, 1/4 inch (6 mm) thickness, nose 1-1/8 inches (28.5 mm) underside.
16.	Type: 431; 3-1/2 inches (89 mm) width, 1/4 inch (6 mm) thickness, nose 1/4 inch (6 mm) underside.
17.	Type: 610; 1-3/8 inches (35 mm) width, 1/4 inch (6 mm) thickness.
18.	Type: 630A; 3 inches (76 mm) width, 1/4 inch (6 mm) thickness.
19.	Type: WP-RN2-SG; 2 inches (51 mm) width, 1/2 inch (13 mm) thickness.
20.	Type: WP-RN3-SG; 3-1/8 inches (79 mm) width, 9/16 inches (14 mm) thickness.
21.	Tread Color: LG-1 Light Green.
22.	Tread Color: LB-1 Light Brown.
23.	Tread Color: LR-1 Light Red.
24.	Tread Color: CG-1 Concrete Gray.
25.	Tread Color: DG-1 Dark Green.
26.	Tread Color: DB-1 Dark Brown.
27.	Tread Color: DR-1 Dark Red.
28.	Tread Color: BLU-1 Blue.
29.	Tread Color: SY-1 Safety Yellow.
30.	Tread Color: BLA-1 Black.
31.	Tread Color: W-1 White.
32.	Length: ______________.
33.	Length: As indicated on Drawings.
a.	For Poured Concrete Stairs: Nosings terminate not more than 4 inches (101.6 mm) from ends of steps.
b.	For Concrete Filled Steel Pan Stairs: Nosings are full length of steps less 1/8 inch (3.05 mm) clearance. 
34.	General: Extruded aluminum base with abrasive filler.
a.	Materials: Type 6063-T5 extruded aluminum. 
b.	Anti-Slip Filler: Contain approximately 65 percent virgin grain Aluminum Oxide (AL2O3) abrasive.
c.	Color: Extends uniformly throughout filler.
d.	Protective Tape: Factory applied.
e.	Nosings: Finish flush with the top of the traffic surface.
35.	Anchoring Hardware: Provide manufacturer's recommended anchoring hardware to achieve best results for substrate and application. 
2.3	PHOTOLUMINESCENT EXTRUDED ALUMINUM SAFETY TREADS AND NOSINGS
A.	Photoluminescent Extruded Aluminum Safety Treads and Nosings: Spectra NITEGLOW Stair Treads as manufactured by Wooster Products, Inc.
1.	Type: WP2-NG; 2 inches (51 mm) width, 3/8 inch (9.5 mm) thickness, nose 1/4 inch (6 mm) underside, 2 inches (51 mm) wide glow area.
2.	Type: WP2C-NG; 2-1/16 inches (5.25 mm) width, 3/8 inch (9.5 mm) thickness, nose 1/4 inch (6 mm) underside, 2 inches (51 mm) wide glow area.
3.	Type: WP2T-NG; 2 inches (51 mm) width, 3/8 inch (9.5 mm) thickness, nose 1/4 inch (6 mm) underside, 2 inches (51 mm) wide glow area.
4.	Type: WP2J-NG; 2-1/16 inches (5.25 mm) width, 3/8 inch (9.5 mm) thickness, nose 1/4 inch (6 mm) underside, 2 inches (51 mm) wide glow area.
5.	Type: WP2JT-NG; 2-1/16 inches (5.25 mm) width, 3/8 inch (9.5 mm) thickness, nose 1/4 inch (6 mm) underside, 2 inches (51 mm) wide glow area.
6.	Type: WP24-NG; 2-1/16 inches (5.25 mm) width, 3/8 inch (9.5 mm) thickness, nose 1/4 inch (6 mm) underside, 2 inches (51 mm) wide glow area.
7.	Type: WP24A-NG; 2-1/16 inches (5.25 mm) width, 3/8 inch (9.5 mm) thickness, nose 1/4 inch (6 mm) underside, 2 inches (51 mm) wide glow area.
8.	Type: WP-RN3SP-NG; 3-1/8 inches (79 mm) width, 9/16 inches (14 mm) thickness, nose, 1 inch (25 mm) wide glow area.
9.	Tread Color: LG-1 Light Green.
10.	Tread Color: LB-1 Light Brown.
11.	Tread Color: LR-1 Light Red.
12.	Tread Color: CG-1 Concrete Gray.
13.	Tread Color: DG-1 Dark Green.
14.	Tread Color: DB-1 Dark Brown.
15.	Tread Color: DR-1 Dark Red.
16.	Tread Color: BLU-1 Blue.
17.	Tread Color: SY-1 Safety Yellow.
18.	Tread Color: BLA-1 Black.
19.	Tread Color: W-1 White.
20.	Length: ______________.
21.	Length: As indicated on Drawings.
a.	For Poured Concrete Stairs: Nosings terminate not more than 4 inches (101.6 mm) from ends of steps.
b.	For Concrete Filled Steel Pan Stairs: Nosings are full length of steps less 1/8 inch (3.05 mm) clearance. 
22.	General: Extruded aluminum base with abrasive filler.
a.	Materials: Type 6063-T5 extruded aluminum. 
b.	Anti-Slip Filler: Contain approximately 65 percent virgin grain Aluminum Oxide (AL2O3) abrasive.
c.	Binder: Fully cured resilient type epoxy. Epoxy binder to filler ratio to be 16 percent minimum. 
d.	Epoxy/Abrasive Filler: 
1)	Photoluminescent Epoxy Filler: Free of hazardous and radioactive substances.
2)	Color: Extends uniformly throughout filler.
3)	Securely bonded to the extruded aluminum base.
4)	Extends over the curved front edge of nosing and shall be.
e.	Protective Tape: Factory applied.
f.	Nosings: Finish flush with the top of the traffic surface.
23.	Anchoring Hardware: Provide manufacturer's recommended anchoring hardware to achieve best results for substrate and application. 
B.	Photoluminescent Extruded Aluminum Safety Treads and Nosings for Heavy Use: Supergrit NITEGLOW Stair Treads as manufactured by Wooster Products, Inc.
1.	Type: FT3-NG; 3 inches (76 mm) width, 3/16 inch (4.75 mm) thickness, nose, 1 inch (25 mm) wide glow area.
2.	Type: XT3-NG; 3 inches (76 mm) width, 3/16 inch (4.75 mm) thickness, nose, 1 inch (25 mm) wide glow area.
3.	Type: M231BF-NG; 3 inches (76 mm) width, 1/4 inch (6 mm) thickness, nose, 1 inch (25 mm) wide glow area.
4.	Type: WP-RN2-NG; 2 inches (51 mm) width, 1/2 inch (13 mm) thickness, nose, 1 inch (25 mm) wide glow area.
5.	Type: WP-RN3SG-NG; 3-1/8 inches (79 mm) width, 9/16 inches (14 mm) thickness, nose, 1 inch (25 mm) wide glow area.
6.	Tread Color: LG-1 Light Green.
7.	Tread Color: LB-1 Light Brown.
8.	Tread Color: LR-1 Light Red.
9.	Tread Color: CG-1 Concrete Gray.
10.	Tread Color: DG-1 Dark Green.
11.	Tread Color: DB-1 Dark Brown.
12.	Tread Color: DR-1 Dark Red.
13.	Tread Color: BLU-1 Blue.
14.	Tread Color: SY-1 Safety Yellow.
15.	Tread Color: BLA-1 Black.
16.	Tread Color: W-1 White.
17.	Length: ______________.
18.	Length: As indicated on Drawings.
a.	For Poured Concrete Stairs: Nosings terminate not more than 4 inches (101.6 mm) from ends of steps.
b.	For Concrete Filled Steel Pan Stairs: Nosings are full length of steps less 1/8 inch (3.05 mm) clearance. 
19.	General: Extruded aluminum base with abrasive filler.
a.	Materials: Type 6063-T5 extruded aluminum. 
b.	Anti-Slip Filler: Contain approximately 65 percent virgin grain Aluminum Oxide (AL2O3) abrasive.
c.	Photoluminescent Epoxy Filler: Free of hazardous and radioactive substances.
d.	Photoluminescent Epoxy Binder: Fully cured resilient type epoxy; epoxy binder to filler ratio to be 16 percent minimum.
e.	Color: Extends uniformly throughout filler.
f.	Protective Tape: Factory applied.
g.	Nosings: Finish flush with the top of the traffic surface.
20.	Anchoring Hardware: Provide manufacturer's recommended anchoring hardware to achieve best results for substrate and application. 
2.4	RENOVATION SAFETY TREADS AND NOSINGS
A.	Renovation Safety Treads and Nosings: Stairmaster as manufactured by Wooster Products, Inc.
1.	Type: 162; 6 inches (152 mm) width, 9/32 inches (51 mm) thickness, nose 1-1/8 inches (28.5 mm) underside, square back.
2.	Type: 182; 8 inches (203 mm) width, 9/32 inches (51 mm) thickness, nose 1-1/8 inches (28.5 mm) underside, square back.
a.	Ends: Beveled ends.
b.	Ends: Square ends.
3.	Type: 500; 9 inches (229 mm) width, 9/32 inches (51 mm) thickness, nose 1-1/8 inches (28.5 mm) underside, beveled back.
a.	Ends: Beveled ends.
b.	Ends: Square ends.
4.	Type: 500SN; 9 inches (229 mm) width, 9/32 inches (51 mm) thickness, nose 1-1/8 inches (28.5 mm) underside, beveled back, for stairs with sloped risers.
a.	Ends: Beveled ends.
b.	Ends: Square ends.
5.	Type: 500NG; 9 inches (229 mm) width, 9/32 inches (51 mm) thickness, nose 1-1/8 inches (28.5 mm) underside, beveled back, 1-1/8 inches (28.5 mm) glow strip in front.
a.	Ends: Beveled ends.
b.	Ends: Square ends.
6.	Type: 511; 11 inch (279 mm) width, 9/32 inches (51 mm) thickness, nose 1-1/8 inches (28.5 mm) underside, beveled back, for stairs with sloped risers.
7.	Type: 511SN; 11 inch (279 mm) width, 9/32 inches (51 mm) thickness, nose 1-1/8 inches (28.5 mm) underside, beveled back, for stairs with sloped risers.
8.	Type: 540; 4 inches (102 mm) width, 9/32 inches (51 mm) thickness, no nose, beveled back 
a.	Ends: Beveled ends.
b.	Ends: Square ends.
9.	Type: 570; 7 inches (178 mm) width, 9/32 inches (51 mm) thickness, no nose, beveled back.
a.	Ends: Beveled ends.
b.	Ends: Square ends.
10.	Type: 6100; 10 inches (254 mm) width, 9/32 inches (51 mm) thickness, no nose, square back.
a.	Ends: Beveled ends.
b.	Ends: Square ends.
11.	Type: 630; 3 inches (76 mm) width, 9/32 inches (51 mm) thickness, no nose, square back.
a.	Ends: Beveled ends.
b.	Ends: Square ends.
12.	Type: 660; 6 inches (152 mm) width, 9/32 inches (51 mm) thickness, no nose, square back.
a.	Ends: Beveled ends.
b.	Ends: Square ends.
13.	Type: 333-NG; 3 inches (76 mm) width, 5/32 inches (51 mm) thickness, nose 13/16 inches (20.5 mm) underside, beveled back, 1 inch (25 mm) glow strip in front.
14.	Length: ______________.
15.	Length: As indicated on Drawings.
16.	Tread Color: LG-1 Light Green.
17.	Tread Color: LB-1 Light Brown.
18.	Tread Color: LR-1 Light Red.
19.	Tread Color: CG-1 Concrete Gray.
20.	Tread Color: DG-1 Dark Green.
21.	Tread Color: DB-1 Dark Brown.
22.	Tread Color: DR-1 Dark Red.
23.	Tread Color: BLU-1 Blue.
24.	Tread Color: SY-1 Safety Yellow.
25.	Tread Color: BLA-1 Black.
26.	Tread Color: W-1 White.
27.	General: Extruded aluminum base with abrasive filler.
a.	Materials: Type 6063-T5 extruded aluminum. 
b.	Anti-Slip Filler: Contain approximately 65 percent virgin grain Aluminum Oxide (AL2O3) abrasive.
c.	Photoluminescent Epoxy Filler: Free of hazardous and radioactive substances.
d.	Photoluminescent Epoxy Binder: Fully cured resilient type epoxy; epoxy binder to filler ratio to be 16 percent minimum.
e.	Color: Extends uniformly throughout filler.
f.	Protective Tape: Factory applied.
g.	Nosings: Finish flush with the top of the traffic surface.
28.	Anchoring Hardware: Provide manufacturer's recommended anchoring hardware to achieve best results for substrate and application. 
B.	Renovation Safety Treads and Nosings for Heavy Use: Flexmaster Stair Treads as manufactured by Wooster Products, Inc.
1.	Type: 300; 9 inches (229 mm) width, 5/32 inches (51 mm) thickness, nose 1-1/16 inches (27 mm) underside, beveled back.
2.	Type: 311; 11 inch (279 mm) width, 5/32 inches (51 mm) thickness, nose 1-1/16 inches (27 mm) underside, beveled back.
3.	Type: 365; 6-1/2 inches (165 mm) width, 5/32 inches (51 mm) thickness, nose 1-1/16 inches (27 mm) underside, beveled back.
4.	Length: ______________.
5.	Length: As indicated on Drawings.
6.	Tread Color: LG-1 Light Green.
7.	Tread Color: LB-1 Light Brown.
8.	Tread Color: LR-1 Light Red.
9.	Tread Color: CG-1 Concrete Gray.
10.	Tread Color: DG-1 Dark Green.
11.	Tread Color: DB-1 Dark Brown.
12.	Tread Color: DR-1 Dark Red.
13.	Tread Color: BLU-1 Blue.
14.	Tread Color: SY-1 Safety Yellow.
15.	Tread Color: BLA-1 Black.
16.	Tread Color: W-1 White.
17.	General: Extruded aluminum base with abrasive filler.
a.	Design: Standard, tread design without drilled and countersunk holes.
b.	Design: Tread design with drilled and countersunk holes.
c.	Protective Tape: Factory applied.
d.	Nosings: Finish flush with the top of the traffic surface.
18.	Coefficient of Friction: As per specification Mil-D-17951E; equal to or greater than 1.24 Dry and 1.02 Wet.
19.	Anti-Slip Surface: Level with all surfaces of the extrusion; chemically bonded with flexible polymeric binder onto extrusion with an adhesive matrix capable of 7.3 lbs per square inches peel strength in compliance with PSTC-1. 
20.	Adhesive: Rubber based construction adhesive as recommended by manufacturer.
21.	Underside of Abrasive Surface: Uniform application of high tack permanent type acrylic pressure-sensitive adhesive. 
22.	Materials: Type 6063-T5 extruded aluminum, 5/32 inch (4 mm) thickness minimum.
23.	Aluminum Finish: Satin finish, for all exposed surfaces.
24.	Anchoring Hardware: Provide manufacturer's recommended anchoring hardware to achieve best results for substrate and application. 
2.5	CAST STAIR TREADS AND NOSING
A.	Cast Stair Nosings and Treads: Cast Stair Nosings and Treads manufactured by Wooster Products, Inc.
1.	Type: 100; multi-use, 5/16 inch (8 mm) thickness, square edges.
a.	Size: _______________.
b.	Size: As indicated on Drawings.
2.	Type: 101; for poured concrete, 5/16 inch (8 mm) thickness, nose 1/4 inch (6 mm) underside.
a.	Width: 3 inches (76 mm).
b.	Width: 4 inches (102 mm).
c.	Width: 6 inches (152 mm).
3.	Type: 101 w/cast on anchors; for poured concrete, concealed integral anchor placed 3 inches (76 mm) from each end and 12 inches (305 mm) oc, 5/16 inch (8 mm) thickness, nose 1/4 inch (6 mm) underside.
a.	Width: 3 inches (76 mm).
b.	Width: 4 inches (102 mm).
c.	Width: 6 inches (152 mm).
4.	Type: 101 w/wing anchors, 5/16 inch (8 mm) thickness, nose 5/16 inch (8 mm) underside.
a.	Width: 3 inches (76 mm).
b.	Width: 4 inches (102 mm).
c.	Width: 6 inches (152 mm).
5.	Type: 101SP; for steel pan, 5/16 inch (8 mm) thickness, nose 3/8 inch (9.5 mm) underside.
a.	Width: 3 inches (76 mm).
b.	Width: 4 inches (102 mm).
c.	Width: 6 inches (152 mm).
6.	Type: 101SP w/wing anchors; for steel pan, anchor placed 3 inches (76 mm) from each end and 12 inches (305 mm) oc, 5/16 inch (8 mm) thickness, nose 3/8 inch (9.5 mm) underside.
a.	Width: 3 inches (76 mm).
b.	Width: 4 inches (102 mm).
c.	Width: 6 inches (152 mm).
7.	Type: 101SP w/cast on anchors; anchor placed 3 inches (76 mm) from each end and 12 inches (305 mm) oc, for steel pan, 5/16 inch (8 mm) thickness, nose 3/8 inch (9.5 mm) underside.
a.	Width: 3 inches (76 mm).
b.	Width: 4 inches (102 mm).
c.	Width: 6 inches (152 mm).
8.	Type: 102; for steel pan, 5/16 inch (8 mm) thickness, nose 1/2 inch (13 mm) x 3/8 inch (9.5 mm).
a.	Width: 3 inches (76 mm).
b.	Width: 4 inches (102 mm).
c.	Width: 6 inches (152 mm).
9.	Type: 103; for steel pan, 5/16 inch (8 mm) thickness, nose 3/4 inch (19 mm) x 3/4 inch (19 mm).
10.	Type: 104; structural, 1 inch (25 mm) x 1 inch (25 mm) nose.
11.	Type: 105A; structural, 1 inch (25 mm) x 1-1/2 inch (39 mm) nose.
12.	Type: 110; 5/16 inch (8 mm) thickness, rounded edges.
13.	Type: 116; for poured concrete, 5/16 inch (8 mm) thickness, nose 1 inch (25 mm) underside.
a.	Width: 3 inches (76 mm).
b.	Width: 4 inches (102 mm).
c.	Width: 6 inches (152 mm).
14.	Type: 116A; for existing stair repair, 5/16 inch (8 mm) thickness, nose 1 inch (25 mm) underside.
15.	Type: 120; multi-use, 5/16 inch (8 mm) thickness, one rounded edge.
16.	Cast Metal Type: Alumogrit (Abrasive cast aluminum); No. 43 prime ingot; low copper content; corrosion resistant.
17.	Cast Metal Type: Ferrogrit (Abrasive cast iron); Class 20 iron; high silicon; machinable; hyper eutectic.
a.	Ferrogrit Tread Finish: One coat shop-black paint. 
18.	Cast Metal Type: Bronzogrit (Abrasive cast bronze); No 123; comp 81-3-7-9 semi-leaded red brass; ASTM B30 (844).
19.	Cast Metal Type: Nicklogrit (Abrasive cast nickel); No. 410; 20 percent Nickel silver; ASTM B30 (976).
20.	Length: ______________.
21.	Length: As indicated on Drawings.
a.	For Poured Concrete Stairs: Nosings terminate not more than 4 inches (101.6mm) from ends of steps; 
b.	For Concrete Filled Steel Pan Stairs: Nosings are full length of steps less 1/8 inch (3.05 mm) clearance. 
22.	Abrasive: #20 virgin grain Aluminum Oxide abrasive, integrally cast into the walking surface to a minimum depth of 1/32 inch (0.8 mm). 
23.	Feature Strip: Safety nosings up to 6 inches (152 mm) deep with cross hatched surface being installed into wet concrete shall have a feature strip along back edge.
24.	Concealed Type Anchors: Slotted rivet type, integrally cast into the body of the nosing a minimum of 3/8 inch (9.5 mm). 
25.	Holes and Countersinks: Machine made, allow screw heads not to protrude above tread surface; cored holes or countersinks are not acceptable. 
26.	Surface Finish: Shot blasted finish for all metal types.
27.	Crosshatching and Fluting: 1/16 inch (1.6 mm) deep minimum and shall be clean and well defined. 
2.6	STRUCTURAL CAST STAIR TREADS AND NOSINGS
A.	Structural Cast Treads and Nosings: As manufactured by Wooster Products, Inc.
1.	Type: 105; 1 inch (25 mm) x 1-1/2 inch (39 mm) nose, 1 inch (25 mm) toeplate.
2.	Type: 106; 3/4 inch (19 mm) x 3/4 inch (19 mm) double nose, with end lugs for bolting to stringers.
3.	Type: 106A; 3/4 inch (19 mm) x 3/4 inch (19 mm) double nose, to be fastened to carrier angles.
4.	Type: 107; 3/4 inch (19 mm) x 3/4 inch (19 mm) nose, 1 inch (25 mm) toeplate, with end lugs for bolting to stringers.
5.	Type: 107A; 3/4 inch (19 mm) x 3/4 inch (19 mm) nose, 1 inch (25 mm) toeplate, to be fastened to carrier angles.
6.	Type: 117; 1-1/2 inch (39 mm) x 1-1/2 inch (39 mm) nose, to be fastened to carrier angles.
7.	Type: 117A; 1-1/2 inch (39 mm) x 1-1/2 inch (39 mm) nose, to be fastened to carrier angles, treads bolt directly to stringer.
8.	Cast Metal Type: Alumogrit (Abrasive cast aluminum); No. 43 prime ingot; low copper content; corrosion resistant.
9.	Cast Metal Type: Ferrogrit (Abrasive cast iron); Class 20 iron; high silicon; machinable; hyper eutectic.
a.	Ferrogrit Tread Finish: One coat shop-black paint. 
10.	Length: ______________.
11.	Length: As indicated on Drawings.
a.	For Poured Concrete Stairs: Nosings terminate not more than 4 inches (101.6mm) from ends of steps; 
b.	For Concrete Filled Steel Pan Stairs: Nosings are full length of steps less 1/8 inch (3.05 mm) clearance. 
12.	Abrasive: #20 virgin grain Aluminum Oxide abrasive, integrally cast into the walking surface to a minimum depth of 1/32 inch (0.8 mm). 
13.	Feature Strip: Safety nosings up to 6 inches (152 mm) deep with cross hatched surface being installed into wet concrete shall have a feature strip along back edge.
14.	Concealed Type Anchors: Slotted rivet type, integrally cast into the body of the nosing a minimum of 3/8 inch (9.5 mm). 
15.	Holes and Countersinks: Machine made, allow screw heads not to protrude above tread surface; cored holes or countersinks are not acceptable. 
16.	Surface Finish: Shot blasted finish for all metal types.
17.	Crosshatching and Fluting: 1/16 inch (1.6 mm) deep minimum and shall be clean and well defined. 
2.7	CURB BAR CAST NOSINGS
A.	Curb Bar Cast Nosings: As manufactured by Wooster Products, Inc.
1.	Type: Curb Bar 150; 1-1/2 inches (39 mm) x 1-1/2 inches (39 mm) x 3/8 inch (9.5 mm).
2.	Type: Curb Bar 250; 2-1/2 inches (63.5 mm) x 2-1/2 inches (63.5 mm) x 1/2 inch (13 mm).
3.	Cast Metal Type: Alumogrit (Abrasive cast aluminum); No. 43 prime ingot; low copper content; corrosion resistant.
4.	Cast Metal Type: Ferrogrit (Abrasive cast iron); Class 20 iron; high silicon; machinable; hyper eutectic.
a.	Ferrogrit Tread Finish: One coat shop-black paint. 
5.	Length: ______________.
6.	Length: As indicated on Drawings.
a.	For Poured Concrete Stairs: Nosings terminate not more than 4 inches (101.6mm) from ends of steps; 
b.	For Concrete Filled Steel Pan Stairs: Nosings are full length of steps less 1/8 inch (3.05 mm) clearance. 
7.	Abrasive: #20 virgin grain Aluminum Oxide abrasive, integrally cast into the walking surface to a minimum depth of 1/32 inch (0.8 mm). 
8.	Feature Strip: Safety nosings up to 6 inches (152 mm) deep with cross hatched surface being installed into wet concrete shall have a feature strip along back edge.
9.	Concealed Type Anchors: Slotted rivet type, integrally cast into the body of the nosing a minimum of 3/8 inch (9.5 mm). 
10.	Holes and Countersinks: Machine made, allow screw heads not to protrude above tread surface; cored holes or countersinks are not acceptable. 
11.	Surface Finish: Shot blasted finish for all metal types.
12.	Crosshatching and Fluting: 1/16 inch (1.6 mm) deep minimum and shall be clean and well defined. 
PART 3    EXECUTION
3.1	EXAMINATION AND PREPARATION
A.	If preparation is the responsibility of another installer, notify Architect in writing of deviations from manufacturer's recommended installation tolerances and conditions.
B.	Do not proceed with installation until substrates have been properly prepared and deviations from manufacturer's recommended tolerances are corrected. Prepare surfaces using the methods recommended by the manufacturer for achieving the best result for the substrate under the project conditions. 
C.	Commencement of installation constitutes acceptance of conditions. 
3.2	INSTALLATION
A.	Install in accordance with manufacturer's written instructions and recommendations, including but not limited to the following.
1.	Schedule pours so as to install the metal safety nosings quickly before the ' initial set' of the concrete occurs. 
2.	Puddle the concrete and tamp safety nosing to insure proper concrete formation around the anchors. 
3.	Remove protective tape, if used, upon completion of installation. 
4.	Close area after pour; permit no use for 24 hours. 
3.3	CLEANING AND PROTECTION
A.	Cleaning: Clean treads and nosings as recommended by manufacturer. Remove scuff and heel marks prior Substantial Completion.
B.	Protection: Protect installed work from damage due to subsequent construction activity on the site.

END OF SECTION