Warped Roof Plywood

I use a sponge or sprayer to wet the concave side of the plywood hot water works best.

Warped roof plywood.

The decking is the plywood that covers your entire roof and is the foundation for your shingles. These include weaknesses in the overall structure. Spray hot water generously onto the concave area of the warped plywood. Step 2 set the plywood sheet on a flat surface that has adequate exposure to warm air such as a paved driveway on a warm sunny day.

Damaged decking can be potentially dangerous. Like the underside of a shriveling leaf the plywood s concave side has lost moisture and shrunk. Internachi describes some of the effects multiple layers of roofing can have on a home. Investigating a warped and wavy roof.

It could be an indication of water leaking through the shingles or a. Plywood sheathing not butting up nicely all around but warpage here and there is pretty easy to see how the home inspector caught the mold but didn t see the warped sheathing is a head scratcher pretty clear this didn t happen in the last 18 months. The convex or humped side should face up and the side you sprayed. The concave area is the interior of the hump formed by the warping.

What kind of plywood for the roof. Poor installation may also create movement in the plywood. Any problem with the decking can result in a visible wave on the roof. Most construction sites will consider the use of either osb or plywood for the roof.

Reversing the warp can be accomplished by adding moisture to this concave side and drying the convex humped side.