Construction material with improved lap integrity
AssigneeMapei S.P.A.
InventorsLouis L. Grube, Mathew Snell, Natalino Zanchetta
Life of this patent
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Abstract
Disclosed is a hybrid composite construction material and a process for creating it. The substrate used to create the new hybrid material has the same compound applied on at least the side lap area on the top side of the substrate and at least a portion of the back side of the substrate. The substrate can be pre-saturated with a selected compound prior to applying the same compound on at least the side lap area on the top side of the substrate and at least a portion of the back side of the substrate. The processes to create the product and other embodiments is also disclosed.
Claims28
A construction material comprising:
- a substrate with a top side and a back side, wherein the top side of the substrate includes a weathering area and a side lap area along an entirety of an edge of the substrate, wherein the side lap area is adjacent to the weathering area;
- a first compound directly on the top side of the substrate in the weathering and side lap areas of the substrate, wherein a thickness of the first compound on the top side of the substrate in the side lap area is less than a thickness of the first compound on the top side of the substrate in the weathering area;
- and
- a second compound on an entirety of the back side of the substrate and on the top side of the substrate in only the side lap area, wherein the first and second compounds are different.
A process for creating a construction material comprising:
- loading one end of a substrate with a top side and back side onto a production line, wherein the top side of the substrate includes a weathering area and a side lap area along an entirety of an edge of the substrate, and the side lap area is adjacent to the weathering area;
- proceeding with the substrate into a first vat wherein the substrate is coated with a first compound directly on the top side of the substrate in the weathering and side lap areas of the substrate and on the back side of the substrate;
- passing through adjustable scrapers to remove only a portion of the first compound from the side lap area on the top side of the substrate and from at least a portion of the back side of the substrate, wherein, after passing through the adjustable scrapers, a thickness of the first compound remaining on the top side of the substrate in the side lap area is less than a thickness of the first compound on the top side of the substrate in the weathering area;
- and
- passing through a second vat wherein the substrate is coated with a second compound onto an entirety of the back side of the substrate and onto the top side of the substrate in only the side lap area from which the portion of the first compound is removed, wherein the first and second compounds are different.
A construction material comprising:
- a substrate with a top side and a back side, wherein the top side of the substrate includes a weathering area and a side lap area along an entirety of an edge of the substrate, wherein the side lap area is adjacent to the weathering area;
- a first compound directly on the top side of the substrate in the weathering area of the substrate, wherein the first compound is not present on the top side of the substrate in the side lap area of the substrate;
- and
- a second compound on an entirety of the back side of the substrate and on the top side of the substrate in only the side lap area wherein the first and second compounds are different.
Dependencies are inferred from the claim text.