Do I Need Foam Under My Vinyl Siding

Insulated vinyl siding is standard vinyl siding with a backing of solid rigid foam insulation.

Do i need foam under my vinyl siding. This detail is used with both new construction and also with renovation work. But herein lies the problem. This will help your house wrap perform better and if you re already siding your house you may as well include it as installing it later will require a complete re siding. Below are some of the design details along with the benefits.

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. Some people use roofing nails but if a strong gust of wind gets under the siding it may not hold. In order for insulation to really do its job it needs to be in direct contact with what it is insulating. Apply sealant around windows doors and trim.

Contoured insulation that is permanently adhered to 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. Tyvek under 1 4in foam for vinyl siding. Many people install vinyl siding or concrete board sding to improve the look and value of their home.

Fit the rigid foam insulation snugly and seal all seams with the specialized tape. By doing so however you miss out on the opportunity to add add energy savings to the project. Vinyl siding can be installed directly over wall sheathing wood siding or stucco. The nails have a plastic cap that keeps them from damaging the foam.

To secure the foam use two inch cap nails. Certainteed vinyl siding with the correct rigid foam board backer makes this house look great. That being said the foam should be put on first and left untaped. If they use a backer board at all contractors will often call it and sell it as insulation board.

Also during this siding process you may also consider asking your contractor to add foam insulation between the vinyl and the house wrap for increased r value. Similar to blown in insulation insulated vinyl siding provides r value for improved energy efficiency. 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. 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.