House Insulation Under Vinyl 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.

House insulation under vinyl siding.

Learn more about this process in the video. Its primary purpose is to prevent air and water leaks that may have seeped past the vinyl exterior. Insulated vinyl siding is made of two primary components. The insulation also adds some r value or insulating quality to the siding.

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. 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. The adhesive used to attach the siding to the vinyl actually cures to create a permanent bond between the two components. It also serves as an air barrier.

Why do homes need house wrap. Rigid foam insulation and 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. By filling the voids behind the siding s stepped profile the insulation makes the complete material stiffer and more resistant to warping and movement than conventional vinyl siding.

The vinyl siding acts as a skin permanently adhered to the insulating foam core.