Why Use Siding Underlayment

Unfortunately existing siding isn t completely flat or level and it needs to be both in order to apply the new siding.

Why use siding underlayment.

They do not absorb water are not a food source for mold and are not subject to moisture related damage and deterioration. There are several disadvantages to using felt underlayment on a roof. The underlayment protects the edge of the roof deck from water damage. That s why an underlayment is necessary.

Rubberized asphalt roofing underlayment should be added at valleys and around roof protrusions. Vinyl siding can be installed directly over wall sheathing wood siding or stucco. For many years felt paper served as the leading type of shingle underlayment. This is why i don t use felt and generally choose typar.

Plywood underlayment is typically needed when a floor material must have a very smooth flat surface. So if you re comparing proposals to install new vinyl siding on your home please be aware of this important fact. The main advantage of using felt roofing underlayment is cost. All to often well designed building products are installed incorrectly which reduces their effectiveness and usually causes some other unforeseen problem down the road.

Felt underlayment tends to cost less compared to synthetic underlayment which is why it s often the go to for budget conscious homeowners. In some cases the use of underlayment may be required to satisfy the product warranty. In severe winter regions waterproof roofing underlayment at the eaves of a roof is helpful. To smooth out the existing surface and give the vinyl a level finish to adhere to.

By doing so however you miss out on the opportunity to add add energy savings to the project. For example if you install resilient tiles or sheet flooring over a subfloor any bumps dips or voids in the subfloor may be evident in the finished flooring. These spots often get leaky first. Siding gives a home a facelift.

The purpose of the shingle underlayment is to provide an additional moisture resistant layer to back up your roof shingles. Whichever product you choose make sure that you follow the manufacturer s installation instructions carefully.