Rotted Plywood On Roof

Remove the rotten wood.

Rotted plywood on roof.

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. Climb up and walk carefully onto the roof. Some sections don t even need replacement. In this video we will demonstrate how to roof repair bad plywood decking caused from a roof leak.

Most roof decking is made from plywood or a plywood composite known as oriented strand board osb. How to replace rotted roof plywood sheathing step 1. Rotted plywood can cause a number of issues. The problem obviously is that you can only perform this once the old shingles are off.

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. We take you step by step minute per minute to make it as ea. Set up a ladder at an even location on the ground next to the home. If there is rotten decking the shingles are most likely letting moisture in.

Remove tiles and slate. Fixing rotted plywood is extremely easy when doing a roof replacement. Using a nail puller and power screwdriver remove the roofing nails and screws holding the decking board. Osb is composed of intertwining wood strands bonded together by a waterproof resin and is a popular option due to its low price point.

What are different types of roof decking. Working your way up the roof expose all of the rotted wood. Moisture causes wood to rot and rotten wood absorbs water even more readily than fresh wood. Simply cut out rotted sections along the roofs trusses and replace them with new plywood.

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. Leave the next course of shingles intact by carefully removing the second set of four nails.