Insulating Concrete Walls Above Grade

Basement walls made out of concrete stone concrete bloc and other masonry foundation materials have very minimal insulating properties and cause approximately 20 of heat loss in a home.

Insulating concrete walls above grade.

They can be used in conjunction with foundation panels and stacked to create multiple stories as a part of a complete wall system building solution. Of unfaced expanded polystyrene r 15 that allows the foundation to dry inward and condition the space with air from inside the house. That is why insulating your basements walls is necessary especially when you live in areas that have very cold climate. Above grade perimeter walls built with concrete masonry units or cmus may only represent about 7 of the new home construction market nationwide.

2 cm of sprayed polyurethane foam directly on the r 4 5. Rigid foam board is then fitted between the furring strips and drywall installed over that. A few tips for building with insulated concrete forms garage doors and other openings wider than 8 feet need bracing. Insulation on the exterior of below grade portions of the wall is temporarily held in place by adhesives until the backfill is placed.

Parge the exposed above grade portion of foundation walls and overlap the top 2 inches of the waterproofing membrane. Rigid foam insulation boards or glass fiber batt insulation can be attached to the interior side of masonry walls with steel or wood furring strips. Use an icf strongback brace like this. Lightweight block lightweight concrete block also have insulating properties.

But in markets across the south especially florida it s the way to build the first floor of almost all homes. 25 mm polystyrene board across the entire concrete surface r 5 or if the concrete surface is irregular in. Ideally treat it like a mini basement. Ag precast concrete wall panels are superior walls products typically the xi wall system that are specifically designed and modified for use above grade.

That portion of the rigid board which extends above grade should be mechanically attached and protected.