Roofing Felt Base Sheet

4 square standard 15 astm d 4869 type i covers 432 sq ft.

Roofing felt base sheet.

Base and felt sheets offer heat resistance and low temperature flexibility to create a stronger more secure roof assembly. The sealed sheet also serves as an effective flame retarder for the application of torch applied modified bitumen membranes. Gap 43 organic base sheet d astm 2626 04 is manufactured from superior quality felt that is saturated with asphalt and then coated on both sides with weathering grade coating asphalt and then covered on top with mineral surface fines to prevent sticking in the roll. All gmc products meet various astm standards.

Garland s high performance roof membranes are the first line of defense against mother nature offering unparalleled strength durability and functionality. Tri ply 75 base sheet is a premium roofing base sheet constructed with a fiberglass mat reinforcing that is coated on both sides to ensure a closed sheet design to prevent asphalt bleed through. Suitable in nailable specifications where bleed thru is a concern. Gmc roofing felt is an industry leading superior quality authentic asphalt saturated organic felt underlayment.

Installation methods for roofing base sheets hot mopping. They will not rot curl or shrink and are dimensionally stable for improved membrane performance. 43 gap organic base sheet posted january 21 2014 by dmoore2948 filed under. The extra strength 75 base sheets offer excellent nail holding ability as well as superb tensile strength and resilience with no bleed through reducing risks of splitting and cracking of the membrane.