Warped Roof Plywood

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.

Warped roof plywood.

Spray hot water generously onto the concave area of the warped plywood. Damaged decking can be potentially dangerous. Investigating a warped and wavy roof. Internachi describes some of the effects multiple layers of roofing can have on a home.

Like the underside of a shriveling leaf the plywood s concave side has lost moisture and shrunk. The concave area is the interior of the hump formed by the warping. What kind of plywood for the roof. Any problem with the decking can result in a visible wave on the roof.

I use a sponge or sprayer to wet the concave side of the plywood hot water works best. Most construction sites will consider the use of either osb or plywood for the roof. It could be an indication of water leaking through the shingles or a. The convex or humped side should face up and the side you sprayed.

Cdx plywood is a construction grade type of plywood that is designed for. The decking is the plywood that covers your entire roof and is the foundation for your shingles. These include weaknesses in the overall structure. Reversing the warp can be accomplished by adding moisture to this concave side and drying the convex humped side.

When it comes to choosing what kind of plywood you need for the roof it is important to understand the basic categories that you can choose from.