Is Foam Board Necessary Siding

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.

Is foam board necessary siding.

The studs conduct more heat than the insulation between them. It also serves as an air barrier. The answer happily is yes. The panels provide a continuous energy efficient surface.

By glenn hooper june 2 2015. 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. This eliminates thermal bridging which is the energy lost through wall studs. As many things in building science go you my dear reader have to learn something.

Installing house wrap with rigid foam insulation. In a typical situation. Why insulation under the siding is important. 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.

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. I thought i should show why continuous foam under the exterior siding is so important. Insulated foam sheets are also used as an insulated sheathing underlayment for exterior siding. 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.

In fact the two products combined make your home super insulated from outside wind and weather. 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. One of the biggest questions homeowners have about house wrap is whether it can be installed together with foam insulation. I get asked if this or that in the in the cavity works as well as foam under the siding.