Do I Need Foam Under Vinyl Siding

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.

Do i need foam under vinyl siding.

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. Apply sealant around windows doors and trim. 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. 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. To secure the foam use two inch cap nails. This detail is used with both new construction and also with renovation work. Below are some of the design details along with the benefits.

As an alternative installation of specific types of drop in contoured foam underlayments for various styles of vinyl siding are available. 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. But herein lies the problem. Some people use roofing nails but if a strong gust of wind gets under the siding it may not hold.

Vinyl siding can be installed directly over wall sheathing wood siding or stucco. 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 standard vinyl siding with a backing of solid rigid foam insulation. Certainteed vinyl siding with the correct rigid foam board backer makes this house look great.

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. Vinyl siding must never be applied directly to studs without sheathing. And just like flat insulating sheathings and fanfolds insulated siding also levels the wall for a better looking siding job. But insulated vinyl siding has one unique feature.

If they use a backer board at all contractors will often call it and sell it as insulation board. Contoured insulation that is permanently adhered to vinyl siding. Some manufacturers of vinyl siding do not recommend the use of drop in backers with certain vinyl siding configurations. How to install rigid foam under siding.