Rotted Plywood On Roof

Set up a ladder at an even location on the ground next to the home.

Rotted plywood on roof.

Using a nail puller and power screwdriver remove the roofing nails and screws holding the decking board. 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. Fixing rotted plywood is extremely easy when doing a roof replacement.

Remove tiles and slate. Leave the next course of shingles intact by carefully removing the second set of four nails. 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.

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. If there is rotten decking the shingles are most likely letting moisture in. Rotted plywood can cause a number of issues. In this video we will demonstrate how to roof repair bad plywood decking caused from a roof leak.

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. 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. We take you step by step minute per minute to make it as ea.

How to replace rotted roof plywood sheathing step 1. Remove the rotten wood. Pull the shingles and underlying felt off the entire board not just the area that s rotted. Climb up and walk carefully onto the roof.

Some sections don t even need replacement. During a reroof start at the peak of the roof and remove all shingles prying them up with a pitchfork working your way down the roof.