Vapor-permeable, water-resistant sheathing and methods thereof
a technology of surface treatment and sheathing, which is applied in the field of sheathing, can solve the problems of both failing to meet the needs of the industry and compromise the integrity of the structur
Inactive Publication Date: 2009-07-16
BERRY PLASTICS CORP
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
The present invention relates to sheathings used for building structures. These sheathings are designed to be vapor-permeable, water-resistant, and have a drainage plane. The sheathings have a permeability rate of at least 5 perms and an absorption rate of less than 15% water-by-weight. The sheathings are made up of multiple layers, including a plurality of core layers, a first and second surface layer, and a plurality of adhesive layers. The sheathings can be attached to structural members of the building using an attachment means. The technical effect of this invention is to provide a protective barrier for building structures that allows for proper drainage and ventilation while also being waterproof and resistant to damage.
Problems solved by technology
Introduction of liquid water to the internal structure may cause problems such as mold and rot which can compromise the integrity of the structure.
Both have failed to meet industry needs.
Method used
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Embodiment Construction
[0018]Embodiments of the present invention generally relate to sheathings generally used for building structures. More specifically, embodiments of the present invention relate to vapor-permeable, water-resistant, surface-treated sheathings having a drainage plane.
[0019]FIG. 1 depicts a cross-sectional view of a sheathing 100 in accordance with one embodiment of the present invention. The sheathing 100 generally comprises a plurality of core layers 110, at least one adhesive layer 120, and a pair of surface layers 130. Optionally, the surface layers 130 comprise a drainage plane for assisting in the drainage of water away from the sheathing 100 or structure, as discussed below. In one embodiment, the sheathing has a total thickness between about 0.050 inch to about 0.625 inch.
[0020]The plurality of core layers 110 may comprise as few as two or as many as twelve layers, yet more or few layers are contemplated by embodiments of the present invention. In one embodiment of the present i...
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Abstract
Embodiments of the present invention generally relate to sheathings generally used for building structures. More specifically, embodiments of the present invention relate to vapor-permeable, water-resistant, surface-treated sheathings having a drainage plane. In one embodiment a sheathing comprises a plurality of core layers, a first and second surface layer, each defining an exterior surface of the sheathing, and a plurality of adhesive layers, each disposed between each of the plurality of core layers, wherein the sheathing comprises a permeability rate of at least about 5 perms, and an absorption rate of less than about 15% water-by-weight.
Description
BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]Embodiments of the present invention generally relate to sheathings generally used for building structures. More specifically, embodiments of the present invention relate to vapor-permeable, water-resistant, surface-treated sheathings having a drainage plane.[0003]2. Description of the Related Art[0004]Sheathings are widely used in construction to form the exterior surface of a building or as an intermediary layer between the exterior surface and the interior framework of the building. These sheathings may typically be exposed to liquid water from outside the building, in the form of atmospheric precipitation, as well as water vapor from inside the building. The sheathings may also be exposed to liquid water from inside the building due to moisture introduced into the framework during the building process.[0005]Much of the building industry relies upon the use of non-water-resistant sheathings with low permeability. The...
Claims
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IPC IPC(8): E04C2/32
CPCB32B3/28B32B2419/00B32B27/10E04B1/70E04D12/002B32B27/285B32B27/306B32B27/308B32B27/36B32B27/40B32B29/005B32B3/263B32B2250/26B32B2255/10B32B2255/12B32B2255/26B32B2260/044B32B2270/00B32B2307/724B32B2307/7265B32B7/12
Inventor PUGH, BILLSLONE, RODERICKLAUTRUP, PAUL
Owner BERRY PLASTICS CORP