2022 Library Roofing Project
Community College of Allegheny County Pittsburgh, Pennsylvania
(2)
Adhere tapered edge strips as specified below.
f.
Tremco Low Rise Foam Insulation Adhesive Application: (1)
Apply adhesive in accordance with specifications and details by Tremco Inc. Clean and prime substrate as required by Tremco Inc. Decrease field-of-the-roof adhesive spacing between ribbons (rows) in perimeters and corners as defined in FM Loss Prevention Data Sheet 1-29 and noted below (round down to a dimension that is practical with respect to board size and application): (a) In the roof perimeter, not more that 60 percent of the field- of-the-roof adhesive ribbon spacing between rows or area.
(2) (3)
(b)
In the roof corners, not more that 40 percent of the field-of- the-roof adhesive ribbon spacing between rows or area.
(4)
Refer to manufacturer’s Product Data sheet for detailed material and application requirements.
6. Install Tremco Inc. 60 mil TremPly Kee Fleece-back (FB) fully adhered Single Ply Roofing System including TremPly KEE flashing membrane and accessories. a. Substrate must be smooth, dry, and free of debris or other irregularities. b. Mix Bonding Adhesive thoroughly before use. c. Adhere TremPly KEE FB membrane to substrate with TremPly KEE FB WBII Bonding Adhesive. d. Position membrane in intended location and fold back. e. Apply bonding adhesive to the substrate only, ensuring 100 percent coverage. f. Install membrane immediately into wet adhesive avoiding any air entrapment. Do not wait for adhesive to dry. Membrane must be rolled into wet adhesive. g. Carefully roll in membrane and broom the membrane in place to assure positive contact. h. Do not allow bonding adhesive to contaminate membrane and flashing lap areas. i. Apply pressure by roller or broom to assure positive contact. j. Roll membrane with a 75-pound membrane roller or equivalent to removewrinkles and ensure positive contact with the substrate.
7.
Heat-weld overlap seams of flashing and field membrane.
8. Install succeeding full rolls in same manner. Overlap seams minimum three (3) inches. 9. Mechanically attach membrane sheets at roof perimeter. Fasteners shall be minimum 1-1/4 inch long galvanized ring shank nails spaced at 6 inches. 10. Mechanically attach membrane sheets at penetrations. Fasteners shall have 2-3/8 inch diameter barbed metal plates. Fasteners shall be spaced a maximum of 12 inches on center and 1-1/8 inch from sheet edge in a true and straight. 11. Membrane Seaming: a. All edge surfaces to be seamed by hot air welding. Surfaces must be wiped with solvent using clean rags. b. Heat-weld laps with approved welding equipment. Adjust welding speed and temperature base upon ambient conditions and material.
01010-5 SUMMARY OF WORK
February 2022
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