Insulation Under Siding

As many things in building science go you my dear reader have to learn something.

Insulation under siding.

To be completely efficient this insulation type has to mold perfectly with the inside of your home siding. It also serves as an air barrier. I get asked if this or that in the in the cavity works as well as foam under the siding. Before installing vinyl siding over existing wood siding or wall sheathing the wood must be dry and in good condition.

The bottom edge of the insulation is shaped to receive the top edge of the siding course below so the pieces overlap. Installation of this insulation type under fiber cement siding can create an incredible 600 more energy efficient home. Installing insulation over moisture or existing rot can create larger headaches later. 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. Generally referred to as rigid foam insulation this type of foam insulation is. Insulated vinyl siding is installed with nails as with standard vinyl. Below are some of the design details along with the benefits.

It provides an r value of 4 per inch of thickness and is the cheapest type of foam board insulation. 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. Most homes in the united states are built with traditional wood frame construction with studs every 16 on center. 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 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 foam board insulation is the rigid pink or blue panels that can be found at home centers in many different thicknesses. Why insulation under the siding is important. I thought i should show why continuous foam under the exterior siding is so important.

In fact you can check if it is a correct insulation installation by pressing on the house 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. This detail is used with both new construction and also with renovation work.