Rigid Foam Insulation Exterior Walls

What s the best way to install foam insulation on the outside of a wall.

Rigid foam insulation exterior walls.

Rigid foam sheathing is a form of insulation continuous insulation to be exact that s applied to the exterior of the building. After that thin furring strips are installed on top of the foam to provide a firm base for the drywall screws and drywall but can you run rigid foam between the studs just as you would do with fiberglass rolls or spray foam. It provides an r value of 4 per inch of thickness and is the cheapest type of foam board insulation. Not only does it provide high r values but foam board insulation is also easy to install lightweight and can be used in any room of your home.

Eps is used under roofing over foundation walls and beneath siding. In other words rigid foam can be applied on walls foundations and roofs and works great for both retrofits and new constructions. Get free shipping on qualified interior exterior foam board insulation or buy online pick up in. Follow with a 2x4 frame wall and insulate it with batt insulation.

R 5 scored square edge rigid foam board insulation sheathing model 20we. Attach the tongue and groove insulation boards to the concrete wall with adhesive. Updated on july 20 2015. Building america ba has been advocating the use of rigid foam sheathing insulation for years as a means to improve the home s thermal envelope by increasing r value while minimizing thermal bridging in wood framed walls.

For a basement remodeling project consider insulating basement walls with foam board. Research by several teams has provided the critical scientific basis for acceptance of foam sheathing by the codes community and resulted in best practices for. Owens corning foamular 150 1 in. Although gba has published many articles and videos on the topic we continue to receive frequent questions from readers asking how to install rigid foam sheathing on exterior walls so it s time to provide a primer on the topic.

Rigid insulation sheathing is made of a rigid plastic foam that is typically sold in 4 8 or 4. Excerpted from a full page article on installing exterior foam insulation at. Continuous rigid insulation is a construction solution that provides a thermally efficient building enclosure. The correct method of using rigid foam is to run continuous 4 foot by 8 foot sheets of the foam across the concrete basement wall making the rigid foam the de facto wall.