Roofing Base Sheet Fastening Pattern

Gafglas 75 base sheet for built up roofing bur is a premium roofing sheet with a strong fiberglass mat to prevent asphalt bleed through.

Roofing base sheet fastening pattern.

Today omg offers the industry s widest assortment of specialty roof fasteners and plates for virtually every roofing application and deck type. Omg cr base sheet fasteners are one piece precision formed from g 90 galvanized steel coated with cr 10 and pre assembled with a 2 75 in. Fastening patterns productivity boosters. Technical information sheet s723 rfs 075 950 05 22 2008 insulation attachment patterns the diagrams below show the required patterns for proper placement of approved fasteners and plates for insulation on standard firestone 55 mph roofing systems.

It is designed to be mechanically fastened over lightweight concrete roof decks or other surfaces as a base for firestone modified bitumen or built up roofing systems. The most common fastener density and pattern requirements are shown on this technical information. Base sheet fastening patterndescription applicationfactory mutual approved i 90 base sheet fastening fasteners are placed 6 7 8 o c. Bm 9 18 18 fastening pattern jm mechanically fastened app bur sbs.

There is a slight grid pattern embossed into the granules to further aid in venting latent moisture in the existing roof system or deck. Rows are approximately 6 3 8 apart. Suremb 90tg 120tg base ply. A 90 mil sbs modified asphalt base sheet can be used in multiple ply systems as an air and vapor barrier or a temporary roof for up to 60 days.

In the lap of the basepattern for lightweight insulating concrete decks sheet and in five rows in the field of the sheet 6 7 8 o c. Zono tite nvs fasteners parabase parabase fs lwc 7 5x10x10 zono tite nvs fasteners parabase parabase fs lwc 7x10x10x10 zono tite nvs fasteners parabase parabase fs lwc 9x12x12 cap nails parabase and parabase fs base sheets. Parafast fasteners w 3 plate parabase and parabase fs.