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 sheathing system capable of covering at least a portion of a frame of a building structure, the system comprising:
at least two structural panels, with a first panel including an outer surface, an inner surface, and at least one edge extending therebetween, the first panel capable of aligning with its at least one edge proximate to at least one edge of a second panel, and capable of defining a joint between the first panel and the second panel;
a bulk water resistant and water vapor permeable barrier layer secured to the outer surface of the first panel and the second panel; and
a bulk water resistant seam sealant capable of sealing the joint between the proximate edges of the first panel and the second panel,
wherein the assembled sheathing system does not comprise an exterior finish of the building structure.
2. The system of claim 1 , wherein the first panel with the secured barrier layer and the second panel with the secured barrier layer have:
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/or
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.
3. The system of claim 1 , wherein the structural panels comprise oriented strand board, plywood, particleboard, medium density fiberboard, or wafer board.
4. The system of claim 1 , wherein the assembled panel system is configured to allow for the escape of water vapor through the structural panels from within the building structure.
5. The system of claim 1 , wherein the barrier layer is secured to the outer surface of the first panel and the second panel prior to aligning the first panel and the second panel.
6. The system of claim 1 , wherein the building structure frame comprises a wall frame or a roof frame.
7. The system of claim 1 , wherein the assembled sheathing system forms a sealed wall or roof of the building structure without a separate moisture barrier layer of house wrap or felt paper.
8. A building structure comprising:
a frame structure;
a plurality of adjacent structural panels fastened to the frame structure, each structural panel comprising a barrier layer secured to an external facing surface of each structural panel, wherein the barrier layer is bulk water resistant and water vapor permeable;
a seam sealant sealing a joint between the structural panels; and
an exterior finish installed onto the first structural panel and the second structural panel.
9. The building structure of claim 8 , wherein each structural panel with the secured barrier layer 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/or
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.
10. The building structure of claim 8 , wherein the building structure comprises a roof or a wall.
11. The building structure of claim 8 , wherein the structural panels comprise oriented strand board, plywood, particleboard, medium density fiberboard, or wafer board.
12. The building structure of claim 8 , wherein the building structure does not comprise a layer of house wrap or felt paper.
13. The building structure of claim 8 , wherein the barrier layer is secured to the external facing surface with an adhesive.
14. The building structure of claim 8 , wherein the building structure comprises a sealed wall or roof without a separate moisture barrier layer of house wrap or felt paper.
15. A method for constructing a building structure, the method comprising:
(a) fastening a first structural panel to a frame structure, wherein the first structural panel comprises a bulk water resistant and water vapor permeable barrier layer secured to an external facing surface of the first structural panel;
(b) fastening a second structural panel to the frame structure and adjacent the first structural panel, wherein the second structural panel comprises a bulk water resistant and water vapor permeable barrier layer secured to an external facing surface of the second structural panel;
(c) applying a bulk water resistant seam sealant for sealing a joint formed between the first structural panel and the second structural panel; and
(d) installing an exterior finish onto the first structural panel and the second structural panel.
16. The method of claim 15 , wherein the first structural panel with the secured barrier layer and the second structural panel with the secured barrier layer have:
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/or
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 method of claim 15 , wherein the building structure comprises a roof or a wall.
18. The method of claim 15 , wherein the first structural panel and the second structural panel comprise oriented strand board, plywood, particleboard, medium density fiberboard, or wafer board.
19. The method of claim 15 , wherein the method does not comprise a step of applying a layer of house wrap or felt paper.
20. The method of claim 15 , wherein the barrier layer is secured to the external facing surface with an adhesive.
21. The method of claim 15 , wherein the resulting building structure comprises a sealed wall or roof without applying a separate moisture barrier layer of house wrap or felt paper.