Roof Plywood Warped

Be careful if you are inspecting the roof yourself as a warped roof is potentially dangerous to walk on.

Roof plywood warped.

At my expense of. Recently had hail damage to my asphalt shingles. Most construction sites will consider the use of either osb or plywood for the roof. The bowing that occurs is actually the plywood shrinking.

As always contact a professional for a thorough inspection and roofing consultation. 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. 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. What kind of plywood for the roof.

It can withstand moisture for a brief period of time but may become warped and delaminated with consistent exposure to the elements. Very common to miss a few spots when nailing the sheathing not an issue most of the time unless they missed a whole row. A good atlanta roofing contractor minds the details. Sometimes referred to as roof sheathing or a roof deck this plywood acts as a foundation for the layers of underlay and the shingles on your roof and connects the roof to the frame of the house.

Plywood pieces can warp if they have been improperly stored or exposed to moisture. The roofer has been tearing the old roof off and has found that the sheathing is dimensional lumber. Poor installation can result in a wavy roof. Cdx plywood is a construction grade type of plywood that is designed for exposure to the elements.

The simple fact is that misaligned or poorly fastened panel edges in your roof deck can cause lines steps warping and bowing that can t be hidden or masked by the best atlanta roofing contractor or the thickest dimensional shingles. Plywood in a roof deck creates a warped effect when holes in the exterior allow water inside your home. You can flatten them again with hot water and a warm environment. It is important to use a reputable trusted contractor for your roof.

Possible causes movement of the roof deck. Poor installation may also create movement in the plywood. Even though it isn t visible it is very important to the structure. Plywood s not going to straighten back out needs to be replaced.

The plywood might also become warped itself if it becomes wet which could happen in the case of a roof leak. Remember you get what you pay for. These include weaknesses in the overall structure. Vent needs to be run out the roof not the soffit.

Chances are the shingles on your roof were attached on top of a plywood base. Only other way is to go back and add blocking to support it where it s sagging. An improperly installed roof deck or the sheets of plywood that are underneath your roofing material could result in the plywood shifting.