Shingle underlayment system including a built-in drip edge
AssigneeCertainTeed Corporation
InventorMichael S. Baker
Life of this patent
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Abstract
A shingle underlayment system includes a waterproofing shingle underlayment, drip edge member, and one or more adhesive sealing strips integrated in a single product. The waterproofing shingle underlayment includes a top surface and an adhesive bottom surface. The drip edge member comprises an in-roof portion and an overhang portion, with the in-roof portion affixed to the top surface of the waterproofing shingle underlayment. The one or more adhesive sealing strips are located above the drip edge member on the top surface of the waterproofing shingle underlayment.
Claims20
A shingle underlayment system, the system comprising:
- a waterproofing shingle underlayment comprising a top surface and an adhesive bottom surface;
- a drip edge member comprising an in-roof portion and an overhang portion, the in-roof portion affixed to the top surface of the waterproofing shingle underlayment;
- and
- one or more adhesive sealing strips located above the in-roof portion of the drip edge member on the top surface of the waterproofing shingle underlayment.
A roofing sheet product, the product comprising:
- an ice and water shield comprising an in-roof portion and an overhang portion;
- and
- a drip edge strip structure adhered to the in-roof portion of the ice and water shield and configured to maintain a substantially rigid form when the in-roof portion of the ice water shield is adhered to a roof deck surface and the overhang portion of the ice and water shield is folded over an edge of the roof deck surface.
A method of installing a shingle underlayment system, the method comprising:
- applying the shingle underlayment system to a roof surface in a direction parallel to a roof edge, the shingle underlayment system comprising a waterproofing shingle underlayment, a drip edge member, and one or more adhesive strips;
- and
- folding an overhang portion of the waterproofing shingle underlayment downward over the roof edge while allowing the drip edge member to extend in a transverse direction with respect to the roof edge.
Dependencies are inferred from the claim text.