Roofing material with a non-asphalt backing

Patent metadata

Field	Value
Publication number	US-10829935-B2
Application number	US-201916507163-A
Country	US
Kind code	B2
Filing date	Jul 10, 2019
Priority date	Aug 24, 2015
Publication date	Nov 10, 2020
Grant date	Nov 10, 2020

Abstract

A roofing material including a substrate having a top face and a bottom face. The roofing material further includes a non-asphalt coating applied to the substrate and an asphalt layer covering at least a portion of the top face. The bottom face is asphalt-free, or substantially asphalt-free.

First claim

We claim:

1. A roofing material comprising:
a substrate having a top face and a bottom face;
a non-asphalt coating applied to the substrate;
an asphalt layer covering at least a portion of the top face;
a head lap portion of the top face that is substantially free of asphalt; and
a surface layer of granules adhered to the asphalt layer;
wherein the bottom face of the substrate is substantially asphalt free; and
wherein the substrate is fully impregnated with the non-asphalt coating such that substantially no asphalt from the asphalt layer impregnates the substrate.

2. A method of manufacturing a roofing material, the method comprising:
applying a non-asphalt coating to a substrate having a top face and a bottom face;
coating the top face of the substrate with asphalt, wherein substantially no asphalt is on the bottom face; and
applying a layer of granules on the asphalt;
wherein the step of applying a non-asphalt coating includes fully impregnating the substrate with the non-asphalt coating such that substantially no asphalt impregnates the substrate.

3. The method of claim 2 , wherein the step of coating the top face of the substrate with asphalt includes selectively leaving a headlap portion of the top face substantially asphalt-free.

Assignees

• Owens Corning Intellectual Capital Llc

Inventors

• Verhoff Jonathan M
• Vanhouten Desmond John
• Schweiger Scott William

Classifications

• E04D1/28 Primary

  Roofing elements comprising two or more layers, e.g. for insulation · CPC title

• E04D1/20

  of plastics; {of asphalt;} of fibrous materials · CPC title

• E04D1/26

  Strip-shaped roofing elements {simulating a repetitive pattern, e.g.} appearing as a row of shingles · CPC title

• B05D5/02

  to obtain a matt or rough surface · CPC title

• B05D3/12

  by mechanical means · CPC title