TRIPLY® Design and Application Instructions Information Sheet Quality You Can Trust Since 1886... From North America’s Largest Roofing Manufactur Quality You Can Trust Since 1886...
® ® TRIPLY Design and Application Instructions Roofing Design Concerns This list represents the most commonly encountered roofing situations that can influence the performance of a roofing system. It is not all inclusive and should not be looked upon as representing all situations that may be encountered or considered. 1. Drains a) The use of plastic drains is not recommended and are not acceptable for installations.
® ® TRIPLY Design and Application Instructions Electrical conduits, bolts, and other similar small items must be removed from the surface of the roof deck; such surface irregularities cannot be properly insulated and roofed. None of the foregoing factors is the responsibility of GAF Materials Corporation, which under no circumstances will assume such responsibility.
® ® TRIPLY Design and Application Instructions Temporary Water Cutoffs and Phased Construction All TRIPLY roofing systems must be made watertight at the end of each work day. Ideally, an entire roof area will receive the installation of the complete new roof system, including all board insulation, membrane plies, and flashings, in one day. When this is not possible, the exposed edges of the new roof system must be sealed so as to prevent water penetration and wind infiltration into the new roof assembly.
® ® TRIPLY Design and Application Instructions Nailing of Base Sheet Directly to Deck Nailable Deck 18" Max. 12"-13" 12"-13" 9" Max. 2" Min. Side Lap TRIPLY Base Sheet All nailing must be done through flat metal caps or acceptable nails with 1 inch square or round metal caps. The proper nail or fastener must be selected in accordance with the recommendations of the deck manufacturer or as recommended for specific type decks in this catalog.
® ® TRIPLY Design and Application Instructions Recover Specifications: GAF Materials Corporation requires that the new roof membrane be separated from the old roof system by either the installation of a layer of GAFTEMP® PERMALITE® Roof insulation. The maximum insulation board size is to be 4' x 4'. Specific Deck Requirements: Steel, Gypsum, Wood, Tectum 1. Any gravel surfacing must be removed to provide a smooth surface. 2. On smooth surfaced roofs, the old roof surface should be level and clean. 3.
® ® TRIPLY APP 2 PLY SYSTEM “GRANULAR SURFACE” “SMOOTH SURFACE” Perlite Insulation Perlite Insulation 3" Min Side Lap 24" Max 3" Min Side Lap 12" 3" Min Side Lap 12" 39 3/8" 39 3/8" 19 5/8" TRIPLY¤ #75 Base Sheet 3" Min Side Lap 24" Max 19 5/8" TRIPLY TP-4 Substrate—Insulated decks Slope—Up to 3 inches per foot. TRIPLY¤ #75 Base Sheet Substrate—Insulated decks Slope—Up to 3 inches per foot.
® ® TRIPLY Safety Precautions Safety Precautions/Considerations Roofing is a hazardous activity. Workers must be properly trained to work in a manner to avoid falls, burns, back injuries, heat related afflictions, etc. It is the sole responsibility of the roofing applicator to enforce fire safety precautions and to ensure safety at all times. All appropriate OSHA and local codes should be followed in the application of roofing.
