Best Insulation To Use Under Vinyl Siding

Kingspan s line of greenguard siding underlayments is designed to be lightweight easy to cut and install durable and highly effective at providing superior moisture control and insulation.

Best insulation to use under vinyl siding.

Before installing vinyl siding over existing wood siding or wall sheathing the wood must be dry and in good condition. Insulated vinyl siding has an outer skin made of polyvinyl chloride or pvc just like standard vinyl siding. This detail is used with both new construction and also with renovation work. Installing insulation over moisture or existing rot can create larger headaches later.

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. Contoured insulation not only insulates the home but also provides support to the siding panel helping to maintain the just installed look for years to come. 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. It also serves as an air barrier.

Insulated vinyl siding is standard vinyl siding with a layer of expanded polystyrene eps foam insulation adhered to it. The additional cost of insulated vinyl siding is recouped over time in the form of lower energy bills. The insulation is glued in place for a permanent connection. Contoured insulation that is permanently adhered to vinyl siding.

But insulated vinyl siding has one unique feature. Today more than ever before homes are being built with foam board insulation installed on the outside of the sheathing and under the siding. 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. Installing foam board insulation under vinyl siding.

And just like flat insulating sheathings and fanfolds insulated siding also levels the wall for a better looking siding job. How to install rigid foam under siding. Behind this skin is a layer of expanded polystyrene eps that is form fitted to the stepped siding profile of the vinyl.