Cover Wood Siding With Rigid Insulation

Plus rigid foam insulation applied over the outside walls.

Cover wood siding with rigid insulation.

Most homes in the united states are built with traditional wood frame construction with studs every 16 on center. Continuous insulation under new siding has become a popular way to improve energy efficiency on an existing home because it addresses a problem known as thermal bridging. 6 requires that continuous rigid insulation insulated siding or a combination of the two provide r 3 in climate zones 1 to 4 or r 5 in climate zones 5 to 8. Attach j channel tightly to the bottom of the siding and around windows.

Clean off the exposed foundation with a wire brush and remove any loose particles. Energy star version 3 rev. 3 5 fastener to siding 1 embedment 3 5 0 5 1 5 1 5 max insulation. The rater should also verify that the wall is designed to provide adequate shear resistance if the foam insulation also serves as the exterior sheathing.

Covering flat walls such as t 111 or stucco siding is usually a prime siding for re siding. Exterior rigid insulation 1x3 wood furring strips masonry structure 2x4 framing attached to surface of masonry 2 to 4 of exterior rigid insulation 1x3 wood. Moisture protection and heat buildup. Since foil faced foam is a moisture barrier it should be used with a continuous film vapor retarder on the inside wall.

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. How should wood siding be installed over rigid foam insulation. Just like vinyl siding you ll need to ensure the siding surface is completely flat either by the old siding or by adding slats to the wall. When installing wood siding over rigid foam sheathing you must protect the siding from moisture and heat buildup and use proper nailing.

This step is optional because the siding often extends far enough from the side of the house to properly seat the foundation insulation panels. It adds up to a robust system. 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.