Insulation Inside Poured Concrete Walls

The best way to insulate the interior side of a basement wall is with foam insulation that is adhered to or sprayed directly on the concrete.

Insulation inside poured concrete walls.

2 calculate how many inches of insulation you need to achieve your. Surface to be insulated condensation tends to form on the concrete in foundation walls. Interior insulation refers to insulation applied to the interior side of the concrete masonry as shown in figure 1. Spray foam is probably the best possible insulation material for basements and damp areas.

Closed cell spray polyurethane foam or either xps eps or polyisocyanurate rigid foam. And there is no effective way to fill the voids in an existing concrete block wall. Nethaniel ealy a builder in idaho who s about to pour a concrete basement foundation is trying to come up with insulation and waterproofing details that will be effective and within the budget. The insulation may be rigid board extruded or expanded polystyrene or polyisocyanurate closed cell spray polyurethane foam cellular glass fibrous batt or fibrous blown in insulation note however that fibrous insulation is susceptible to moisture.

Any of the following insulation materials are acceptable for this purpose. The exterior side of the poured cement basement walls have no insulation or covering on their surface. Because they are naturally located below ground level basements are mostly cool and damp. 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.

How to glue polystyrene insulation to a concrete wall. Your only option is to cover the inside of the exterior walls with a continuous layer of insulation as though you were insulating a basement wall. This delivers a two fold benefit. The current plan is to place 2 inches of extruded polystyrene xps on the outside of the foundation walls.

There is almost. The exterior walls are completely sheltered from sun and precipitation as there is a waterproofed deck which shields them as well as the walls facing due south. Polystyrene foam boards commonly called foamboard are a clean lightweight convenient way to insulate bare concrete walls. Most homeowners require insulation with an r value between 13 and 21 in their basements where most concrete walls can be found.

Rigid foam can be adhered to a poured concrete or concrete block wall with foam compatible adhesive or with special plastic fasteners such as hilti idps or rodenhouse plasti grip pmfs.