David Medcalf
I am planning on adding a carport roof to the side of my house. I want it simple, just rafters and metal roofing. It needs to be 16' wide without any center support. I am concerned that wooden rafters will warp. Does anyone make an aluminum or other type of rafter that shouldn't warp?
Allan Reid
Dura-Loc Roofing Systems, Inc.
Certainly snow load is an issue and yes galvanized steel rafters are readily available. Check what the building code calls for on loading and a supplier should be able to provide the right size and exact length. Typically most drywall supply places handle them.
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