Roofing Felt Base Sheet

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.

Roofing felt base sheet.

The hot mopped system is a traditional method of applying bituminous base sheets. The resulting system is. They will not rot curl or shrink and are dimensionally stable for improved membrane performance. 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.

4 square standard 15 astm d 4869 type i covers 432 sq ft. Suitable in nailable specifications where bleed thru is a concern. All gmc products meet various astm standards. Installation methods for roofing base sheets hot mopping.

43 gap organic base sheet posted january 21 2014 by dmoore2948 filed under. These systems utilize heat welding machines or propane welding equipment to melt the asphalt creating an. 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. The sealed sheet also serves as an effective flame retarder for the application of torch applied modified bitumen membranes.