Description:
GAFGLAS #75 Base Sheet is a premium roofing base sheet. It is constructed with a strong glass mat that is coated on both sides to assure a closed-sheet design to prevent asphalt bleed-through. The sealed sheet also serves as an effective flame retarder for the application of torch-applied modified bitumen membranes.

Uses:
GAFGLAS #75 Base Sheet is engineered for use in the construction of GAFGLAS built-up and RUBEROID^® modified bitumen roofing systems. It is suitable for nailable specifications, such as plywood, where bleed-through is a concern.

Advantages:
· Extra strength for excellent nail-holding ability.
· Superb tensile strength and resilience and no bleed-through, thereby reducing risks of splitting and cracking of membrane.
· Will not rot, curl, or shrink; dimensionally stable for improved membrane performance.
· Meets UL Class A ratings.
· Rolls out flat for easy installation.

Applicable Standards:
· UL Approved for use in the construction of Class A, B, or C roofs (Type G2 BUR)
· FMRC Approved; see current guide
· ASTM D-4601, Type II
· Dade County Product Approval

Product Data (Approximate):
Roll Size....39.4" x 97.5'
(1.0m x 29.7m)
Coverage Per Roll....3 squares
Roll Weight....75 lbs. (34.1 kg) 

Description:
GAFGLAS STRATAVENT Base Sheets are premium-grade venting roofing felts. The bottom of each sheet is granule-surfaced to provide positive venting of any trapped gases under the roof membrane. Available in Nailable and Perforated mop designs.

Uses:
GAFGLAS STRATAVENT Base Sheets are designed to be used in various GAFGLAS built-up and RUBEROID^® modified bitumen roofing systems. They can be used over both nailable and non-nailable substrates, including certain existing old roof surfaces and isocyanurate foams.

Advantages:
· Provides for venting of pressurized gases beneath the roofing membrane.
· In recover applications, provides an effective means for separating the new roofing membrane from the existing roof system.
· STRATAVENT Perforated Base Sheet provides consistent, uniform spot-attachment of the roofing membrane.
· Wind uplift-resistant; FMRC Class 1-90
Approved for both GAFGLAS and RUBEROID roofing systems.
· Meets requirements for application in all climatic zones.

Applicable Standards:
· UL Approved for use in the construction of Class A, B, or C roofs (Type G2 BUR)
· FMRC Approved; see current guide
· GAFGLAS STRATAVENT meets ASTM D-4897 Type II, and D-3672 Type II
· Dade County Product Approval

Product Data (Approximate):
Roll Size...39.4" x 32.6'
       (1.0m x 9.9m)
Coverage Per Roll...1 square
Roll Weight (Perforated)...60 lbs.        (27.3 kg)
Roll Weight (Nailable)......69 lbs.         (31.4 kg)

Description:
GAFGLAS Mineral Surfaced Cap Sheet is an asphalt-coated glass fiber mat cap sheet surfaced with mineral granules. 

Uses:
GAFGLAS Mineral Surfaced Cap Sheet is used as the surfacing ply in the application of hot-applied built-up roofs and as a top ply in base flashing construction.

Advantages:
· Durability-glass base resists the effects of moisture on the roof system.
· Granule surface provides an ultraviolet protective surface.
· Code approvals-UL Class A, B, or C membrane constructions are available.
· Aesthetically attractive; requires no additional surface coatings.

Applicable Standards:
· UL Approved for use in the construction of Class A, B, or C roofs (Type G3 BUR)
· FMRC Approved; see current guide
· Federal Specification SS-R-630D, TYPE III
· ASTM D-3909
· Dade County Product Approval

Product Data (Approximate):
Roll Size....39.4" x 32.6'
(1.0m x 9.9m)
Coverage Per Roll....1 square
Roll Weight....76 lbs. (34.5 kg)