Panel for sheathing system and method
The panel includes a water resistant barrier layer secured atop its outward facing surface. The water resistant barrier layer includes a skid resistant surface. The panels are made of lignocellulosic material. The water resistant and skid resistant surface may include indicia for aligning strips of tape or for aligning fasteners. A method for manufacturing the water resistant building panels is also disclosed and includes the steps of feeding paper onto a forming belt, depositing lignocellulosic material and the binding agent onto the forming belt so as to form a lignocellulosic mat, applying heat and pressure so as to impart the skid resistant surface on the paper, and cutting panels to predetermined sizes.
1. A structural panel for use in sealed-joint panel system also including an adjacent structural panel and a sealant, the structural panel comprising:
a structural layer comprising a wood composite material, wherein the structural layer has a first edge positioned opposite from a second edge and a third edge positioned opposite from a fourth edge, the first and second edges being parallel to one another, the third and fourth edges being parallel to one another, and the third and fourth edges being perpendicular relative to the first and second edges; and
a water resistant and water vapor permeable layer secured to and coextensive with the structural layer,
wherein the structural panel has a liquid water transmission rate from about 1 to about 28 grams/100 in 2 /24 hr, via Cobb ring in accordance with ASTM D5795, and
wherein in use the structural panel can be positioned adjacent the adjacent structural panel to define a joint therebweteen and the sealant can be applied to the two structural panels to cover the joint to form the sealed-joint panel system.
2. The structural panel of claim 1 , wherein the structural panel is configured for use as an external wall panel secured to a wall frame structure.
3. The structural panel of claim 1 , wherein the structural panel is configured for use as an external roof panel secured to a roof frame structure.
4. The structural panel of claim 1 , wherein the structural panel has a thickness of from about 0.25 inches to about 1.25 inches.
5. The structural panel of claim 1 , wherein the structural panel is produced by a process comprising securing the water resistant and water vapor permeable layer to the structural layer with an adhesive.
6. The structural panel of claim 1 , wherein the structural layer comprises oriented strand board, plywood, particleboard, medium density fiberboard, or wafer board.
7. The structural panel of claim 1 , wherein the structural layer comprises oriented strand board.
8. A structural panel for use in sealed-joint panel system also including an adjacent structural panel and a sealant, the structural panel comprising:
a structural layer comprising a wood composite material, wherein the structural layer has a first edge positioned opposite from a second edge and a third edge positioned opposite from a fourth edge, the first and second edges being parallel to one another, the third and fourth edges being parallel to one another, and the third and fourth edges being perpendicular relative to the first and second edges; and
a water resistant and water vapor permeable layer secured to and coextensive with the structural layer,
wherein the structural panel has a water vapor transmission rate from about 0.7 to about 7 grams/m 2 /24 hr, as determined by ASTM E96 procedure A (73° F.-50% RH), and/or a water vapor permeance from about 0.1 to about 12 perms, as determined by ASTM E96 procedure B (73° F.-50% RH), and
wherein in use the structural panel can be positioned adjacent the adjacent structural panel to define a joint therebweteen and the sealant can be applied to the two structural panels to cover the joint to form the sealed-joint panel system.
9. The structural panel of claim 8 , wherein the structural panel is configured for use as an external wall panel secured to a wall frame structure.
10. The structural panel of claim 8 , wherein the structural panel is configured for use as an external roof panel secured to a roof frame structure.
11. A structural panel consisting essentially of:
a wood composite panel comprising oriented strand board; and
a bulk water resistant barrier layer secured to an exterior surface of the wood composite panel with an adhesive;
wherein:
the structural panel has a water vapor transmission rate from about 0.7 to about 7 grams/m 2 /24 hr, as determined by ASTM E96 procedure A (73° F.-50% RH); and/or
the structural panel has a water vapor permeance from about 0.1 to about 12 perms, as determined by ASTM E96 procedure B (73° F.-50% RH).
12. The structural panel of claim 11 , wherein the structural panel has a liquid water transmission rate from about 1 to about 28 grams/100 in 2 /24 hr, via Cobb ring in accordance with ASTM D5795.
13. The structural panel of claim 11 , wherein the wood composite panel has a thickness of from about 0.25 inches to about 1.25 inches.
14. The structural panel of claim 11 , wherein the barrier layer substantially covers the exterior surface of the wood composite panel.
15. The structural panel of claim 11 , wherein the structural panel comprises a polymer.
16. A structural panel consisting of:
a wood composite panel comprising oriented strand board or plywood; and
a bulk water resistant barrier layer secured to an exterior surface of the wood composite panel with an adhesive;
wherein:
the structural panel has a water vapor transmission rate from about 0.7 to about 7 grams/m 2 /24 hr, as determined by ASTM E96 procedure A (73° F.-50% RH), and/or a water vapor permeance from about 0.1 to about 12 perms, as determined by ASTM E96 procedure B (73° F.-50% RH); and
the structural panel has a liquid water transmission rate from about 1 to about 28 grams/100 in 2 /24 hr, via Cobb ring in accordance with ASTM D5795.
17. The structural panel of claim 16 , wherein the structural panel has a water vapor permeance in a range from about 0.1 U.S. perms to about 1.0 U.S. perms, as determined by ASTM E96 procedure A (73° F.-50% RH).
18. The structural panel of claim 16 , wherein the wood composite panel has a thickness of from about 0.25 inches to about 1.25 inches.
19. The structural panel of claim 16 , wherein the barrier layer substantially covers the exterior surface of the wood composite panel.
20. The structural panel of claim 16 , wherein the structural panel comprises a polymer.
21. The structural panel of claim 16 , wherein the wood composite panel comprises oriented strand board.