Roof Plywood Rotting

What are different types of roof decking.

Roof plywood rotting.

The soffit is the wide horizontal board that encloses the underside of the eaves. Staple it to the roof decking or nail it with plastic capped roofing nails. Rotted plywood is identifiable by sinking areas of the roof or visible leaks. All roofs have a layer of plywood sheathing underneath them which provides a base for the shingle attachment.

A slight water intrusion may compromise the roof deck creating wood rot. Gain access to the attic to inspect the plywood or 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. Osb is composed of intertwining wood strands bonded together by a.

Most roof decking is made from plywood or a plywood composite known as oriented strand board osb. I am using a 7 16 osb sheathing that i got from lowe s. Cover the seams between the old and new decking with bitumen tape. Your new board should be the same material.

Once you repair the hole in the roof plywood you need to seal up the seams and recover the roof. Like the fascia a decaying soffit should be soft enough to pull out manually. 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. Once all nails and screws are removed lift the rotted decking board up and off the roof.

Lay felt paper onto the roof overlapping the existing paper to get good coverage. Although the plywood typically lasts longer than most shingles and roof coverings leaks can cause them to rot. We discovered damage on this roof after we removed the underlayment. Note bad areas for removal.

Locate the rotted roof decking. Remove the old soffit. Look up at the roof area. Tools reviews materials.

If you re a homeowner looking for a new deck you need to compare plywood vs osb. In most instances it is plywood or particleboard. 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.