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CDX plywood vs. OSB for roof decking on a garage.

Replacing a metal garage roof with asphalt shingles.  Wondering if there is a preference for CDX plywood or oriented strand board for the decking, and what thickness is recommended?  Thanks.

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Posted 2013-09-03T17:54:56+0000  by JL1 JL1
 

Hi JL1,

 

The use of either type of underlayment is approved by most cities building codes. However contact your local building department for their specific requirements in your area.

 

The thickness is dictated by local codes. Obviously in areas with winter snow loads, a thicker material will be required than in warmer climates.

 

Mike,

Posted 2013-09-09T21:49:00+0000  by Mike_HD_OC
 
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