Roofing Base Sheet Fastening Pattern

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.

Roofing base sheet fastening pattern.

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. 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. Bm 9 18 18 fastening pattern jm mechanically fastened app bur sbs. Parafast fasteners w 3 plate parabase and parabase fs.

The most common fastener density and pattern requirements are shown on this technical information. These fasteners are available in two sizes and can be used to secure base sheets to poured lightweight insulating concrete and on certain poured gypsum decks. Bm 9 18 18 mechanically fastenened base sheet 9 18 18 o c keywords. 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.

Base sheet fastening patterndescription applicationfactory mutual approved i 90 base sheet fastening fasteners are placed 6 7 8 o c. Gafglas 75 base sheet for built up roofing bur is a premium roofing sheet with a strong fiberglass mat to prevent asphalt bleed through. 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. Today omg offers the industry s widest assortment of specialty roof fasteners and plates for virtually every roofing application and deck type.

Suremb 90tg 120tg base ply. Rows are approximately 6 3 8 apart. Fastening patterns productivity boosters.