Foam Siding Insulation With Nail Strips

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.

Foam siding insulation with nail strips.

This detail is used with both new construction and also with renovation work. Cover the house walls with 4 by 8 foot sheets of rigid foam insulation typically 1 2 to 1 inch thick nailed to wood sheathing with 1 1 2 inch broad headed galvanized nails every 16 to 18 inches. The panels provide a continuous energy efficient surface. Gypsum sheathing with a combined thickness up to 4 inches thick the foam sheathing and other non nailable substrates do not have nail holding capacity.

Pft is a manufacturer of foam insulation products for home exterior siding applications and is the inventor of insulated vinyl siding. Over masonry sub surface 1 in. When applying james hardie siding to furring strips which is applied on foam sheathing or other non nailable substrates e g. We had hoped to use 1 5 to 2 inches of eps rigid foam to the exterior of the sheathing then 3 4 inch x 4 inch plywood furring strips then lp smartside lap siding.

On center that were fastened to the underlying studs. Given the beefiness of their headlok fasteners i m going to say that one end of that spectrum is serious overkill vs the other. Horizontal siding strips should be installed vertically on 12 in. Then i discovered that lp s installation instructions specify 1 5 inch x.

Below are some of the design details along with the benefits. Insulated foam sheets are also used as an insulated sheathing underlayment for exterior siding. Furring should be installed completely around doors windows and other openings at all corners and at the top and bottom of the area to be. We re building a new home sw virginia with 2x6 studs on 24 inch centers.

The studs conduct more heat than the insulation between them. We knew we had to use the 76 series smartside product for the 24 inch centers. For nearly 25 years pft s insulation solutions have made homes energy efficient durable and comfortable. That said i ve nailed vinyl to furring strips set 24 in.

This eliminates thermal bridging which is the energy lost through wall studs. Of foam and you can t use furring strips which are not a flat solid surface without voiding the warranty. Wood strips are installed with masonry nails over the masonry area to be sided. Their table suggests that vinyl attached to furring strips over 1 of foam is the same as cementious siding over 4 of foam.