House Insulation Under Vinyl Siding

This detail is used with both new construction and also with renovation work.

House insulation under vinyl siding. Why do homes need house wrap. Its primary purpose is to prevent air and water leaks that may have seeped past the vinyl exterior. The insulation also adds some r value or insulating quality to the 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.

Insulated vinyl siding is made of two primary components. To sum it up house wrap is a lightweight paper like material that is most often used to completely cover the house directly on top of the sheathing and behind the vinyl siding. And even though some manufacturers call it rigid foam insulation for the purpose of vinyl siding it basically has the same insulating value as a piece of plywood. These benefits make insulated vinyl seem like an easy worthwhile upgrade to conventional vinyl but there s a significant cost increase with insulated vinyl and many builders and homeowners question whether the price premium is.

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. Rigid foam insulation and vinyl siding. The vinyl siding acts as a skin permanently adhered to the insulating foam core. In reality rigid foam board which sometimes comes in fanfold usually only has an insulating factor of r 1 and does not add any appreciable insulation effect to your home.

It also serves as an air barrier.