Insulation Underneath Siding

So if you re comparing proposals to install new vinyl siding on your home please be aware of this important fact.

Insulation underneath siding.

Why insulation under the siding is important. 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. It also serves as an air barrier. 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.

To be completely efficient this insulation type has to mold perfectly with the inside of your home siding. In fact you can check if it is a correct insulation installation by pressing on the house siding. Below are some of the design details along with the benefits. The insulation itself can be up to 1 25 inch thick at its thickest point but due to the stepped profile much of the insulation is thinner.

Before installing vinyl siding over existing wood siding or wall sheathing the wood must be dry and in good condition. This detail is used with both new construction and also with renovation work. Generally referred to as rigid foam insulation this type of foam insulation is. I thought i should show why continuous foam under the exterior siding is so important.

Installing insulation over moisture or existing rot can create larger headaches later. An honest professional vinyl siding contractor will tell you exactly what you re getting. Similarly it is asked do you need insulation under vinyl siding. Click to see full answer.

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. Many people install vinyl siding or concrete board sding to improve the look and value of their home. Insulated vinyl siding is installed with nails as with standard vinyl. The bottom edge of the insulation is shaped to receive the top edge of the siding course below so the pieces overlap.

I get asked if this or that in the in the cavity works as well as foam under the siding. Installation of this insulation type under fiber cement siding can create an incredible 600 more energy efficient home. 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 this detail is used with both new construction and also with renovation work. Most homes in the united states are built with traditional wood frame construction with studs every 16 on center.

By glenn hooper june 2 2015.