Insulation Underneath Siding

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.

Insulation underneath siding. Before installing vinyl siding over existing wood siding or wall sheathing the wood must be dry and in good condition. In fact you can check if it is a correct insulation installation by pressing on the house siding. As many things in building science go you my dear reader have to learn something. 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.

An honest professional vinyl siding contractor will tell you exactly what you re getting. It also serves as an air barrier. 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. Why insulation under the siding is important.

Most homes in the united states are built with traditional wood frame construction with studs every 16 on center. I thought i should show why continuous foam under the exterior siding is so important. To be completely efficient this insulation type has to mold perfectly with the inside of your home 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. Installing insulation over moisture or existing rot can create larger headaches later. 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. Similarly it is asked do you need insulation under vinyl siding.

I get asked if this or that in the in the cavity works as well as foam under the siding. The bottom edge of the insulation is shaped to receive the top edge of the siding course below so the pieces overlap. Insulated vinyl siding is installed with nails as with standard vinyl. Many people install vinyl siding or concrete board sding to improve the look and value of their home.

This detail is used with both new construction and also with renovation work. By glenn hooper june 2 2015. Generally referred to as rigid foam insulation this type of foam insulation is. There are insulated rigid foam products that will increase the insulation factor but you ll pay much more for r 5 to r 7.

With budgets tighter than ever now contractors and do it youselfers are tearing off the original siding and installing a thin foam board underneath claiming it will improve the energy efficiency of the property.