Roof Plywood Rotting

Cover the seams between the old and new decking with bitumen tape.

Roof plywood rotting.

Once all nails and screws are removed lift the rotted decking board up and off the roof. Although the plywood typically lasts longer than most shingles and roof coverings leaks can cause them to rot. Your new board should be the same material. Most roof decking is made from plywood or a plywood composite known as oriented strand board osb.

If you re a homeowner looking for a new deck you need to compare plywood vs osb. Lay felt paper onto the roof overlapping the existing paper to get good coverage. Roof materials plywood vs osb debate. I am using a 7 16 osb sheathing that i got from lowe s.

Remove the old soffit. Once you repair the hole in the roof plywood you need to seal up the seams and recover the roof. Staple it to the roof decking or nail it with plastic capped roofing nails. In this video i show how to replace rotten plywood on your roof without breaking your back.

Like the fascia a decaying soffit should be soft enough to pull out manually. Rotted plywood is identifiable by sinking areas of the roof or visible leaks. A slight water intrusion may compromise the roof deck creating wood rot. Osb is composed of intertwining wood strands bonded together by a.

All roofs have a layer of plywood sheathing underneath them which provides a base for the shingle attachment. Note bad areas for removal. Keep a large waste bin or similar container nearby to dispose of all the rotten roofing materials together when you re finished with your project. We discovered damage on this roof after we removed the underlayment.

What are different types of roof decking. Locate the rotted roof decking. Your system is likely comprised of plywood and may be rotted due to moisture and delamination caused by rain and other forms of inclement weather. 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.

The soffit is the wide horizontal board that encloses the underside of the eaves. In most instances it is plywood or particleboard. Look up at the roof area.