Flame-resistant composites for roofing underlayment
A composite comprising (i) a pressure-sensitive adhesive component including first and second planar surfaces; (ii) a fire-resistant fabric adhered to the first planar surface; and (iii) a cap layer disposed on said fire-resistant fabric opposite said asphaltic component.
1. A composite comprising:
(i) an asphaltic body including first and second planar surfaces, said body including an asphalt-saturated reinforcing fabric;
(ii) a non-woven glass fabric impregnated with an intumescent material adhered to the first planar surface; and
(iii) a cap layer disposed on said non-woven glass fabric opposite said asphaltic body.
2. The composite of claim 1 , further comprising a release layer removably adhered to the second planar surface of the asphaltic body.
3. The composite of claim 1 , further comprising expandable graphite disposed between said asphaltic body and said non-woven glass fabric.
4. The composite of claim 1 , where the cap layer is a polyolefin sheet.
5. The composite of claim 1 , where the non-woven glass fabric includes a fabric substrate having intumescent material disposed thereon.
6. The composite of claim 5 , where the intumescent material disposed on said fabric substrate is expandable graphite.
7. The composite of claim 5 , where said intumescent material is adhered to said fabric substrate through a binder.
8. The composite of claim 1 , where the non-woven glass fabric includes fibers and an intumescent material dispersed within a binder.
9. The composite of claim 8 , where the intumescent material of said non-woven fabric includes expandable graphite.
10. The composite of claim 1 , where the asphalt-saturated reinforcing fabric is a fire resistant fabric.
11. The composite of claim 1 , where the asphalt-saturated reinforcing fabric is a woven fabric.
12. The composite of claim 1 , where the asphalt-saturated reinforcing fabric further includes an intumescent material disposed on said reinforcing fabric.
13. The composite of claim 12 , where the intumescent material disposed on said reinforcing fabric is expandable graphite.
14. The composite of claim 12 , where said intumescent material is adhered to said reinforcing fabric through a binder.
15. A roof system including the composite of claim 1 .