Foam Insulation Under 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.

Foam insulation under 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. We will start with hot climates. One new wrinkle for many builders is walls built with fiber insulation between the studs plus rigid foam. 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.

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. Below are some of the design details along with the benefits. How to install rigid foam under siding. Siding over rigid foam a vented drainable air space keeps wood siding dry and stable.

Eps is used under roofing over foundation walls and beneath siding. 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. Rigid foam insulation also known as insulating boards provide high r values. It provides an r value of 4 per inch of thickness and is the cheapest type of foam board insulation.

This detail is used with both new construction and also with renovation work. The bottom edge of the insulation is shaped to receive the top edge of the siding course below so the pieces overlap. 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 foam board insulation is the rigid pink or blue panels that can be found at home centers in many different thicknesses.

They keep your home at a comfortable temperature without the need to crank your heat. Rigid foam insulation is one of the most important and efficient forms of insulation. Although rigid foam insulation is more expensive than fiberglass insulation it is more efficient. Generally referred to as rigid foam insulation this type of foam insulation is.

Most homes in the united states are built with traditional wood frame construction with studs every 16 on center. Install it anywhere from the roof to the foundation. Insulated vinyl siding is installed with nails as with standard vinyl. You can even place it under the foundation slab.

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. It is designed to prevent a house from losing heat.