Is Foam Board Necessary Siding

I get asked if this or that in the in the cavity works as well as foam under the siding.

Is foam board necessary siding.

Considering how effective house wrap is and how simple it is to install behind vinyl it is a good idea to ensure your contractor includes it when siding your home. One of the biggest questions homeowners have about house wrap is whether it can be installed together with foam insulation. Installing house wrap with rigid foam insulation. It also serves as an air barrier.

The studs conduct more heat than the insulation between them. I thought i should show why continuous foam under the exterior siding is so important. Using exterior rigid foam board insulation is a great way to make a building more energy efficient quieter and more likely to prevent moisture infiltration problems. Almost any type of siding can be installed over the rigid foam cedar or redwood planks exterior plywood sheets cement fiber board or vinyl siding are common options.

The answer happily is yes. In fact the two products combined make your home super insulated from outside wind and weather. The panels provide a continuous energy efficient surface. 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.

The method works for both new construction and remodeling and doesn t affect siding and trim details very much. Why insulation under the siding is important. This eliminates thermal bridging which is the energy lost through wall studs. 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.

In a typical situation. As many things in building science go you my dear reader have to learn something. By glenn hooper june 2 2015. 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.