Cover Wood Siding With Rigid Insulation

Plus rigid foam insulation applied over the outside walls.

Cover wood siding with rigid insulation.

Any imperfections in the wall will almost always show up in the siding. 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. A vented drainable air space keeps wood siding dry and stable.

Covering flat walls such as t 111 or stucco siding is usually a prime siding for re siding. 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. 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. 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.

Energy star version 3 rev. 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. 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. 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.

Moisture protection and heat buildup. It adds up to a robust system. Since foil faced foam is a moisture barrier it should be used with a continuous film vapor retarder on the inside wall. The foam on the outside keeps the wood.

Most homes in the united states are built with traditional wood frame construction with studs every 16 on center. How should wood siding be installed over rigid foam insulation. Attach j channel tightly to the bottom of the siding and around windows.