Rotted Plywood On Roof

Rotted plywood can cause a number of issues.

Rotted plywood on roof.

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. 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.

How to replace rotted roof plywood sheathing step 1. Set up a ladder at an even location on the ground next to the home. Pull the shingles and underlying felt off the entire board not just the area that s rotted. 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. We take you step by step minute per minute to make it as ea. Simply cut out rotted sections along the roofs trusses and replace them with new plywood. What are different types of roof decking.

Climb up and walk carefully onto the roof. Some sections don t even need replacement. The problem obviously is that you can only perform this once the old shingles are off. In this video we will demonstrate how to roof repair bad plywood decking caused from a roof leak.

Working your way up the roof expose all of the rotted wood. Fixing rotted plywood is extremely easy when doing a roof replacement. Leave the next course of shingles intact by carefully removing the second set of four nails. Remove all of the shingles using a pry bar or a shingle ripper tool to detach the nails.

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. Remove the rotten wood.