Community College of Allegheny County Pittsburgh, Pennsylvania
2022 Library Roofing Project
c. d.
Element: 1600 Watt
Accessories: 40mm nozzle, various silicone and metal rollers.
3.
Power Generators a.
If a power generator is used only for the automatic welder, a minimum of 220 volts, 30 amps and 7500-watts unit is required. If additional items are used such as hand welder, screw guns or other equipment, increased generator capacity is required. A minimum 220 volt, 30 amp and 1000 watts generator is recommended.
3.07
ADHERED ROOF MEMBRANE INSTALLATION
A. Install membrane according to roofing system manufacturer’s written instructions, starting at low point of roofing system. Place ply sheets to ensure water will flow over or parallel to, but never against exposed edges. Shingle in direction to shed water. 1. Install sheet according to ASTM D 6754. 2. Provide air seal where required at perimeter, curbs and penetration flashings. 3. The Tremco KEE membrane shall be fully adhered to properly installed and prepared substrate surface. a. Clean roof and wall surfaces of dust, debris, and other substances detrimental to roofing installation according to roofing system manufacturer’s written instructions. Remove sharp projections. 4. Plan the placement of Roof Membrane to facilitate the fabrication of the least number of seams. Ensure that water flows over or along, but not against, the exposed edges. 5. Mechanically attach field sheets at roof perimeter and penetrations. Fasteners shall include specified barbed metal plates. Fasteners shall be placed at 12 inches on center and 1-1/8 inch from sheet edge in a true and straight. a. The roof perimeters and corners may require additional design to develop the necessary resistance for local wind conditions. Contact Tremco for additional information if the building is located where winds may exceed standard warranty conditions or special code provisions are required.
6.
The membrane shall be cut to fit neatly around all penetrations and roof projections.
7. The roofing membrane shall be unrolled and positioned with a minimum 3-inch overlap. Laps shall be shingled with, or run parallel to, the slope of the roof. B. Install (60 mil) Reinforced KEE FB field membrane sheets and (60 mil) Reinforced KEE membrane sheets (non-fleeced) for base flashings. 1. General: a. Install KEE FB field sheets and KEE flashing sheets using specified bonding adhesive. b. Surfaces to receive bonding adhesive must be clean, dry, and free from oil, grease, or other contaminants. c. Prior to application, mix adhesive vigorously by hand to achieve a homogeneous blend. DO NOT use electrical equipment or open flame near solvent-based adhesive. Do not thin adhesive with solvents.
07540-8 THERMOPLASTIC MEMBRANE ROOFING
February 2022
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