How Long Does Plywood Last On A Roof

Sometimes referred to as roof sheathing or a roof deck this plywood acts as a foundation for the layers of underlay and the shingles on your roof and connects the roof to the frame of the house.

How long does plywood last on a roof.

50 years wood shake roof covering. The structural component of the roof. Even though the wood is porous it is more natural and it can dry quickly. Most roofing jobs includes a minimum of three sheets of plywood that are part of the backbone of the roof.

25 years wood shingle roof covering. The protective layer keeping your home s air ventilated and protected against moisture. The most common uses for plywood include support for floors walls roofs and garages in residential construction. When used for roofing plywood panels are covered and protected by a variety of building materials that keep the elements at bay including roof felt underlayment flashing and shingles.

As plywood lasts about 30 to 40 years and we run the risk of delamination and required replacement in a few years. Overall plywood is a little bit better for roofing. 3 sheets are a bit rotten especially on the edge but overall it is sti read more. Pieces of tyvek had been littering his neighbors yards for about 5 years.

The normal life span of different types of roofing. The other two have stated that as long as the plywood is good and stays dry it can last forever. 20 years tar and. The roof is covered with 1 4 plywood sheeting and has 4 sheets on each side of the roof 8 x4.

When the roofing material dries quicker it can be used to make sure that the roof will stay firm for a longer time. My roof shed needs re roofing. This is why plywood is considered as the better option for roofing. Except in climates with extreme humidity causing almost year around condensation like pacific northwest olympic peninsula and coastal pacific canada and southeast alaska and upper maine coastline for example and some constantly 100 humidity areas in the deep south your sheathing should with proper attic ventilation last at least 70 100 years at least till the third or fourth reroof and very commonly roof sheathing strip roofing can last 100 200 years if leaks are taken care of.

Chances are the shingles on your roof were attached on top of a plywood base.