Optimum Water Content Of Osb Roof Sheathing

Osb comes in 4 by 8 foot sheets as does plywood but the manufacturing process allows the production of longer and wider ones.

Optimum water content of osb roof sheathing.

You need to know that using a moisture meter doesn t give very accurate measurements with osb or other glued products. Zip system 1 2 cat ps2 10 tongue and groove osb sheathing application as 4 x 8. Osb moisture content for most homes cycled above 20 and for several homes above 25. Percent moisture content in wood is the ratio of the weight of water compared to the overall weight of a piece of wood.

Part of the problem of course is the perrenial confusion between correlation and causality. T strand osb roof and wall sheathing carries a 25 year limited warranty. T strand pro roof and wall sheathing carries a 50 year limited warranty as well as a 365 day no sand guarantee. If a board reads 100 difficult to measure accurately then the weight of the water equals the weight of that wood.

Unbalanced and limited ventilation caused by installation of three different types of the ridge ventilators greatly impeded the airflow inside the attic. Osb is the primary wall and roof sheathing in the market today therefore there is sufficient laboratory and field data available to. Oriented strand board osb gets blamed for a lot of problems that are really the fault of the designers and builders. That may not seem like a lot but when you are that close to the danger zone a 24 difference in permeability between final products is worthy of note.

Osb hit the market as we really started getting serious about insulation and air sealing. 2 perm 7 16 osb sheathing with a 30 perm wrb results in 1 88 perms. 2 perm 7 16 osb sheathing with a 5 perm wrb results in 1 43 perms. Knowing the moisture content of your osb sub floor panel is an important indicator on whether to proceed with other stages of the build especially if hardwood flooring is the next step.

Ridging and or buckling of the osb roof sheathing at 8 ft 2440 mm intervals. Thicknesses range from 5 16 to 3 4 inch and the proper. 0 1000 2000 3000 4000 5000 6000. A 10 moisture content reading means that 10 of a wood sample s weight is due to water in the wood.