Concrete Wall Insulation Detail

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Concrete wall insulation detail.

Concrete insulation may only be of importance to moderate interior temperatures in the upper portions of the foundation wall where temperature conditions will fluctuate. 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. And there is no effective way to fill the voids in an existing concrete block wall. Three basic types of thermal insulation are available rigid board batt or blanket and spray on.

Oct 31 2016 explore ghassan haddad s board details insulation waterproofing followed by 308 people on pinterest. 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. David caruso springfield pa. In addition to covering the field of the wall the foam is also cut to fit between joists at sill and rim joist.

Rigid insulation is placed horizontally under the slab perimeter and vertically in the joint at the slab edge. The layer of rigid foam insulation that separates the concrete foundation wall on the outside from the slab on the inside. Interior insulation refers to insulation applied to the interior side of the concrete masonry as shown in figure 1. Concrete basement wall with interior insulation sill detail figures 2 14f and 2 14s show a basement wall insulated on the interior with rigid foam plastic.

Moisture control is similar to figure 4 11 with the vapor retarder placed on top of the rigid insulation. 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. As most foundation wall systems have substantial mass e g. Roche writes in a recent q a post that just about every foundation design for a slab that he s seen either puts all of the rigid insulation on the outside of the foundation or.

Walls 39 insulation and fenestration criteria table 402 1 1 insulation and fenestration requirements by componenta climate zone fenestration u factorb skylightb u factor glazed fenestrationb e shgc ceiling r value wood frame wall r value mass wall r valuei floor r value basementc wall r value slabd r value depth crawl spacec wall r value. Because it isolates the concrete. The current plan is to place 2 inches of extruded polystyrene xps on the outside of the foundation walls. Roche has paused at an important detail.

Interior installation using the rigid board batt or spray on methods is the least expensive method. Figure 4 12 illustrates a slab on grade with a concrete foundation wall. Masonry wall with interior insulation.