Why Is Tyvek Used Under Vinyl Siding

It adds insulation waterproofing and structural support.

Why is tyvek used under vinyl siding.

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. That s what the tyvek is for. The irc 2000 code and our building dept. I ve opened up houses built less than 5 years previous and the tyvek was shreaded like old newspaper.

The wood that goes under residential siding exterior sheathing performs several functions. By doing so however you miss out on the opportunity to add add energy savings to the project. I have seen literally hundreds of houses stripped of asbestos siding that had 15 felt under it. 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.

To sum it up house wrap is a lightweight paper like material that is most often used to completely cover the house directly on top of the sheathing and behind the vinyl siding. Tyvek was used underneath very poorly installed. Use tyvek over building felt under siding. Installing foam board insulation under vinyl siding today.

What type of wood is used under siding. I want to replace the tar paper but i can t find it at homedepot or lowes. I ll stick with tried and true felt paper. Vinyl siding can be installed directly over wall sheathing wood siding or stucco.

Several areas where the tyvek had shrunk and torn mainly at window corners. Faq s acronym s terminology to tyvek or not to tyvek that is the question. 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. This explains why the house does not retain heat.

On all walls and all exposure conditions there were large areas of the tyvek which were deteriorated to the point of tissue paper. 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. One would be to remove the siding wrap the house and then reside it. During a recent repair to our siding we found that the house had no building wrap tyvek under the siding.

Our house was built about seven years ago. They were built in the 1950s and 60s the felt was in perfect condition. I just finished removing some vinyl siding installed in 1987.