House Insulation Under Vinyl Siding

Foil faced foam board insulation is a great idea but is not a good choice for hot climates or cold climates as an exterior insulation product.

House insulation under vinyl siding.

We will start with hot climates. Installation of this insulation type under fiber cement siding can create an incredible 600 more energy efficient home. Hot climates already have a lot of heat and vinyl siding tends to expand and contract with temperature changes up to 1 if the siding is made of recycled vinyl material. Will this cause any condensation issues.

If they use a backer board at all contractors will often call it and sell it as insulation board. This will help your house wrap perform better and if you re already siding your house you may as well include it as installing it later will require a complete re siding. Continuous insulation under new siding has become a popular way to improve energy efficiency on an existing home because it addresses a problem known as thermal bridging. I get asked if this or that in the in the cavity works as well as foam under the siding.

The windows are being removed and moved out the 2 to line up with the foam board. It also serves as an air barrier. I thought i should show why continuous foam under the exterior siding is so important. Insulated vinyl siding is standard vinyl siding with a backing of solid rigid foam insulation.

By glenn hooper june 2 2015. Installing foam insulation under vinyl siding is a wise choice for homeowners who are seeking to protect their homes against moisture infiltration as well as improve energy efficiency. The house has wrap under the siding. But herein lies the problem.

In fact you can check if it is a correct insulation installation by pressing on the house siding. To be completely efficient this insulation type has to mold perfectly with the inside of your home siding. Why insulation under the siding is important. I am having the siding removed from our house and 2 foam board but under the siding.

As many things in building science go you my dear reader have to learn something. Also during this siding process you may also consider asking your contractor to add foam insulation between the vinyl and the house wrap for increased r value. The house was build in the 19970 s 2 4 walls and pink insulation between the studs. Certainteed vinyl siding with the correct rigid foam board backer makes this house look great.