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US 9,540,820 B2Granted
Multilayer roofing sheet with mechanical interlock laminate structure
AssigneeCertainTeed Corporation
InventorsHusnu M. Kalkanoglu, Gregory F. Jacobs
Life of this patent
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Abstract
A multilayer roofing sheet includes a laminate formed from an upper sheet having a textured lower surface and a lower sheet having a fusible upper surface mechanically interlocked together.
Claims18
Roll roofing consisting of a multilayer roofing sheet comprising:
- a laminate formed from
- a) an upper sheet having a textured lower surface and comprising an upper layer and a lower layer, the lower layer of the upper sheet being selected from the group consisting of non-woven webs, microporous films, and sheets having microstructured surfaces;
- and
- b) a lower sheet having a fusible upper surface, the lower sheet comprising a lower layer and an upper layer, the upper layer having the fusible upper surface, the lower layer including a reinforcing scrim and an adhesive layer.
1 more element
Roll roofing consisting of a multilayer roofing sheet comprising a laminate formed from
- a) an upper sheet having at least two layers and a textured lower surface, wherein the texture of the lower surface of the upper sheet is provided by a plurality of pores;
- and
- b) a lower sheet having a fusible upper surface, the lower sheet comprising a lower layer and an upper layer, the upper layer having the fusible upper surface, the lower layer including a reinforcing scrim and an adhesive layer.
Roll roofing consisting of a multilayer roofing sheet comprising a laminate formed from
- a) an upper sheet having a textured lower surface, wherein the texture of the lower surface of the upper sheet is provided by a process selected from the group consisting of embossing, molding, and microreplication;
- and
- b) a lower sheet having a fusible upper surface, the lower sheet comprising a lower layer and an upper layer, the upper layer having the fusible upper surface, the lower layer including a reinforcing scrim and an adhesive layer.
Dependencies are inferred from the claim text.