Why Is Tyvek Used Under Vinyl Siding

Use tyvek over building felt under siding.

Why is tyvek used under vinyl siding.

This explains why the house does not retain heat. The wood that goes under residential siding exterior sheathing performs several functions. I want to replace the tar paper but i can t find it at homedepot or lowes. Builder omits house wrap under siding.

That s what the tyvek is for. They were built in the 1950s and 60s the felt was in perfect condition. I ll stick with tried and true felt paper. Vinyl siding can be installed directly over wall sheathing wood siding or stucco.

Its primary purpose is to prevent air and water leaks that may have seeped past the vinyl exterior. If you ve ever taken vinyl siding off a house the day after a good rain it s all wet back there anyways which is why we insist on tyvek. It adds insulation waterproofing and structural support. I have seen literally hundreds of houses stripped of asbestos siding that had 15 felt under it.

I just finished removing some vinyl siding installed in 1987. One would be to remove the siding wrap the house and then reside it. Several areas where the tyvek had shrunk and torn mainly at window corners. I ve opened up houses built less than 5 years previous and the tyvek was shreaded like old newspaper.

I saw a new house with felt paper under the siding rather than tyvek. Tyvek was used underneath very poorly installed. It seems that we have two options. By doing so however you miss out on the opportunity to add add energy savings to the project.

Vinyl siding is not water proof is not intended to be water proof and i don t know a siding manufacturer that claims it to be anything more than a cladding. On the other hand brick stucco and other masonry based sidings can be used with house wrap but your builder will need to use the right type. Our house was built about seven years ago. On all walls and all exposure conditions there were large areas of the tyvek which were deteriorated to the point of tissue paper.

Siding that s assembled from large panels such as vinyl or aluminum cladding also makes a good candidate too since water can enter through cracks where the pieces are joined. What type of wood is used under siding.