Rotted Plywood On Roof

What are different types of roof decking.

Rotted plywood on roof.

Fixing rotted plywood is extremely easy when doing a roof replacement. Prime spots in the attic for wood rot are on the underside of the roof decking in the joints where the wood members connect at the peak of the roof and at the edges of the attic where the rafters. We take you step by step minute per minute to make it as ea. And if a home s roof decking is rotting and unable to support the weight of the roof it can cause some very serious structural issues.

In this video we will demonstrate how to roof repair bad plywood decking caused from a roof leak. Rotted plywood can cause a number of issues. Set up a ladder at an even location on the ground next to the home. Climb up and walk carefully onto the roof.

Remove tiles and slate. Some sections don t even need replacement. If there is rotten decking the shingles are most likely letting moisture in. Osb is composed of intertwining wood strands bonded together by a waterproof resin and is a popular option due to its low price point.

Moisture causes wood to rot and rotten wood absorbs water even more readily than fresh wood. Remove the rotten wood. Remove all of the shingles using a pry bar or a shingle ripper tool to detach the nails. Working your way up the roof expose all of the rotted wood.

Rotted plywood cannot support the weight of a roof the way healthy wood can nor can it safely grip the nails put into the roof and keep them held firm. Using a nail puller and power screwdriver remove the roofing nails and screws holding the decking board. Most roof decking is made from plywood or a plywood composite known as oriented strand board osb. Simply cut out rotted sections along the roofs trusses and replace them with new plywood.

Pull the shingles and underlying felt off the entire board not just the area that s rotted. The problem obviously is that you can only perform this once the old shingles are off.