Best Insulation To Put Under Vinyl Siding

Would like to add some type of insulation on the exterior walls.

Best insulation to put under vinyl siding.

Installing vinyl siding with plywood substrate. Furring strips furring strips may be necessary if you are installing vinyl siding over existing wood siding or stucco. This detail is used with both new construction and also with renovation work. 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.

Insulated vinyl siding is standard vinyl siding with a backing of solid rigid foam insulation. But insulated vinyl siding has one unique feature. From a previous post i was told fanfold insualtion was only necessary if the substrate was uneven. 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.

While fan fold has minimal insulation value it does even out wall defects and cuts down on drafts. Measure the walls from top to bottom with a tape measure and buy either 4 by 8 foot or 4 by 9 foot sheets of rigid foam insulation to cover from the roof line of the house to the sill plate at. The foam backer also acts as a shock absorber for the siding significantly improving impact resistance and protecting it from impact damage from things like hail baseballs and rocks thrown from the lawnmower. It also serves as an air barrier.

Contoured insulation that is permanently adhered to 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. Plan to use rigid foam with silver facing underneath vinyl siding. 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.