No 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.

No insulation under vinyl siding.

Generally referred to as rigid foam insulation this type of foam insulation is. It also serves as an air barrier. As many things in building science go you my dear reader have to learn something. Is the rigid foam board under vinyl siding really insulating your home.

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. I thought i should show why continuous foam under the exterior siding is so important. Why insulation under the siding is important. This detail is used with both new construction and also with renovation work.

By glenn hooper june 2 2015. Drawbacks of insulated vinyl siding. Installing insulated vinyl is similar to a standard vinyl installation so there s no reason why labor costs should be significantly higher with insulated vinyl. No obligation vinyl siding quote or to ask a question call kim at 301 368 3551.

I get asked if this or that in the in the cavity works as well as foam under the siding. The main drawback of insulated vinyl is its relatively high cost. 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. Adding insulation to the back of vinyl siding can raise the cost by 20 to 50.