OSB Walls

Initial Study of the Moisture Performance of OSB-Sheathed Walls in Homes in Climate Zones 4 and 5

This study is designed to document construction practices and obtain performance data for new houses framed in the fall of 2009 in the same geographical areas and by the same builders that experienced buckling of OSB wall sheathing in the winter of 2008-2009. The objective of the study is to attempt to isolate the variables or a combination of variables that are contributing to OSB wall sheathing buckling. In addition, moisture performance information is collected by sensors installed in wall cavities to better understand the in-service moisture conditions of OSB-sheathed walls during the first winter and spring following the construction process.