What Insulation Is Best Under Vinyl Siding

Why insulation under the siding is important.

What insulation is best under vinyl siding.

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. How to install rigid foam under siding. It also serves as an air barrier. Below are some of the design details along with the benefits.

I get asked if this or that in the in the cavity works as well as foam under the siding. How insulated vinyl siding is made. Insulated vinyl siding manufacturer reviews. As many things in building science go you my dear reader have to learn something.

Generally referred to as rigid foam insulation this type of foam insulation is. 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. Many houses built today have a double wall type of insulation with fiberglass batts fastened between the studs on the inside and rigid foam board over. So if you re comparing proposals to install new vinyl siding on your home please be aware of this important fact.

Before installing vinyl siding over existing wood siding or wall sheathing the wood must be dry and in good condition. Here are the top brands making insulated vinyl siding and what they offer. An honest professional vinyl siding contractor will tell you exactly what you re getting. There are insulated rigid foam products that will increase the insulation factor but you ll pay much more for r 5 to r 7.

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. The insulation is glued in place for a permanent connection. Behind this skin is a layer of expanded polystyrene eps that is form fitted to the stepped siding profile of the vinyl. This detail is used with both new construction and also with renovation work.

We will start with hot climates. Insulated vinyl siding has an outer skin made of polyvinyl chloride or pvc just like standard vinyl siding. By glenn hooper june 2 2015. Installing foam board insulation under vinyl siding today more than ever before homes are being built with foam board insulation installed on the outside of the sheathing and under the siding.

Installing insulation over moisture or existing rot can create larger headaches later. Alside prodigy insulated vinyl siding is backed with 5 of insulation the thickest in the industry to provide r 5 energy star qualified heat resistance.