Full Product Manual

ROCKWOOL

Basement walls

To reduce overall heating and cooling

costs, it pays to insulate the interior

foundation walls. R-Values can be

increased by installing a combination of

two ROCKWOOL insulation products:

Comfortboard

80 and Comfortbatt

thermal insulation. Before starting, check

basement walls for signs of dampness. If

damp, have the foundation checked for

cracks. Ideally, wait a minimum of one

year after construction to allow for the

foundation to settle.

The combination of ROCKWOOL Comfortboard

80 and

ROCKWOOL Comfortbatt

ensures optimum long-term

thermal performance from basement wall assembly.

Step 1

Clean surface and remove all debris from concrete walls. Mechanically

fasten Comfortboard 80 to the exterior concrete wall. Refer to the board

insulation attachment guide for further guideance.

Step 3

A) Install 3.5-inch Comfortbatt thermal

insulation between studs.

B) Install vapor retarder where required.

Consult local area building codes for

guidance on the use of a vapor retarder.

Step 2

Install 2 x 4 stud wall directly against Comfortboard 80, leaving

no gaps or air space.