Warped Plywood On Roof

Only other way is to go back and add blocking to support it where it s sagging.

Warped plywood on roof.

These include weaknesses in the overall structure. If you have more question or concerns about your wavy or warped roof and would like a professional consultation contact us at schroer and sons. The plywood might also become warped itself if it becomes wet which could happen in the case of a roof leak. Plywood s not going to straighten back out needs to be replaced.

The plywood is nailed to the roof rafters and unless the builder used a tongue and groove plywood or h clips the long edge can warp in between each rafter. However even a warped roof deck can be repaired. Poor installation may also create movement in the plywood. Plywood in a roof deck creates a warped effect when holes in the exterior allow water inside your home.

Very common to miss a few spots when nailing the sheathing not an issue most of the time unless they missed a whole row. Thankfully this is usually corrected with a little time and heat. This type of roof wave is usually only seen after a new installation. An improperly installed roof deck or the sheets of plywood that are underneath your roofing material could result in the plywood shifting.

Internachi describes some of the effects multiple layers of roofing can have on a home.