Exterior Wall Foam Insulation Board

Step 1 prepare the wall.

Exterior wall foam insulation board.

We install the foam over a layer of house wrap using cap nails followed by taping all the seams with an approved foam insulation tape. Typically sold as sheet insulation in a standard size of 4 x 8 foam insulation panels can help reduce energy costs get a handle on moisture control and more. Exterior wall 4 floor 1 garage 6 interior ceiling 3 interior wall 3 metal building 2 re siding 2 under slab 3 wood siding 3 more ways to filter. A layer of xps or polyiso foam board insulation is installed on top of the wall sheathing.

It is recommended that you install foam board insulation for exterior walls of concrete foundations concrete slabs basement walls and crawl spaces. The best practice for increasing the r value in exterior walls is to protect them with insulated foam sheathing. R 7 5 scored squared edge rigid foam board insulation sheathing model 88wd view the owens corning exterior insulation. 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 installation to ensure thermal performance as well as air barrier and drainage plane integrity.

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. Eps is used under roofing over foundation walls and beneath siding. Shop at lowe s to find the foam sheeting you need for your next insulation project. Polyisocyanurate is another option coming in as the densest and more expensive option for foam board.

R 5 scored square edge rigid foam board insulation sheathing model 20we view the owens corning exterior insulation 18 98 18 98. Rigid foam sheathing is a form of insulation continuous insulation to be exact that s applied to the exterior of the building. Owens corning foamular 150 1 1 2 in. Exterior foam board this is probably the most common approach to exterior foam insulation.

Thermax ci dupont thermax ci exterior foam insulation is a rigid board insulation consisting of a glass fiber reinforced polyisocyanurate foam core faced with nominal 1 25 mil embossed blue thermoset coated aluminum on one side and 0 9 mil smooth reflective aluminum on the other. Rigid insulation sheathing is made of a rigid plastic foam that is typically sold in 4 8 or 4 10 foot boards. This foam board insulation is the rigid pink or blue panels that can be found at home centers in many different thicknesses. Owens corning foamular 150 1 in.

Some builders use 1 2 inch wood sheathing r 0 6 or asphalt impregnated sheathing usually called blackboard r 1 3 to sheath the walls.