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 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; and
a seam sealant sealing a joint between the structural panels;
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
each structural panel with the secured barrier layer 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.
2. The building structure of claim 1 , wherein the building structure comprises a roof.
3. The building structure of claim 1 , wherein the building structure comprises a wall.
4. The building structure of claim 1 , wherein the structural panels comprise oriented strand board.
5. The building structure of claim 1 , wherein the structural panels comprise plywood.
6. The building structure of claim 1 , wherein the building structure does not comprise a layer of house wrap or felt paper.
7. The building structure of claim 1 , wherein the barrier layer is secured to the external facing surface with an adhesive.
8. The building structure of claim 1 , wherein edges of the adjacent structural panels are positioned a distance away from each other to allow for expansion and contraction of the structural panels.
9. The building structure of claim 1 , wherein the seam sealant is in contact with the external facing surface of the structural panel, the barrier layer, or both.
10. A building structure comprising:
a frame structure;
a plurality of adjacent oriented strand board (OSB) panels fastened to the frame structure, each OSB panel comprising a barrier layer secured to an external facing surface of each OSB panel; and
a tape sealing a joint between the OSB panels;
wherein:
each OSB 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
each OSB panel with the secured barrier layer has a water vapor permeance from about 0.1 to about 12 perms, as determined by ASTM E96 procedure B (73° F.-50% RH).
11. The building structure of claim 10 , wherein the building structure comprises a roof.
12. The building structure of claim 10 , wherein the building structure comprises a wall.
13. The building structure of claim 10 , wherein the building structure does not comprise a layer of house wrap or felt paper.
14. The building structure of claim 10 , wherein the barrier layer is secured to the external facing surface with an adhesive.
15. The building structure of claim 10 , wherein edges of the adjacent OSB panels are positioned a distance away from each other to allow for expansion and contraction of the OSB panels.
16. The building structure of claim 10 , wherein the tape is in contact with the external facing surface of the OSB panel, the barrier layer, or both.
17. The building structure of claim 10 , wherein the tape has a thickness of about 3.0 to about 34.0 mils.
18. The building structure of claim 10 , wherein the tape has a backing with a thickness of about 1.0 to about 4.0 mils and an adhesive layer of about 2.0 to about 30.0 mils.
19. The building structure of claim 10 , wherein the OSB panels have a thickness of from about 0.25 inches to about 1.25 inches.
20. The building structure of claim 10 , wherein the barrier layer comprises a polymer.