Insulating Concrete Masonry Walls

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.

Insulating concrete masonry walls. 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. Core fill 500 masonry foam insulation core fill 500 is america s leading foam insulation for concrete block precast concrete and hollow cavity brick walls. The increase achieved by injecting aminoplast foam insulation is up to 264 greater than is possible with normal weight concrete masonry walls injected with the same aminoplast foam insulation. David caruso springfield pa.

Interior insulation refers to insulation applied to the interior side of the concrete masonry as shown in figure 1. Concrete block 8. If we increase the r value of the wall to r14 by. 8 thick concrete slab or foundation wall has an r value of about 1 04 30 while lightweight aggregate filled 8 thick concrete has an r value of about 2 18 30.

Above grade perimeter walls built with concrete masonry units or cmus may only represent about 7 of the new home. F btu 1 23 m k w an estimate of the building envelope energy use for this structure is approximately 27 800 btu ft 87 7 kwh m as shown in figure 1. If this school is built using single wythe concrete masonry walls with cell insulation only and a resulting wall r value of 7 hrft 2. Walls are much greater than conventional 3 web concrete block walls.

The foam is injected under pressure into the empty cores of masonry walls. And there is no effective way to fill the voids in an existing concrete block wall. Concrete masonry materials and wall assemblies with their inherent thermal mass characteristics provide designers with many options to achieve efficient design with genest s insulated masonry wall systems you have superior high r values that meet stringent energy codes. Insulated forms available.

Give thermal mass an extra boost with expol masonry wall insulation. Concrete masonry wall assemblies whole wall r values for. Storing more heat than timber or metal masonry has long been regarded as an excellent provider of thermal mass. See citations at masonry below.

New ways to better insulate concrete walls concrete masonry block walls are a popular perimeter wall option in several areas. Here s how to make sure they are insulated to meet stricter energy standards. Hold onto that warmth and reduce heating costs by using expol s range of high performance expanded polystyrene insulation boards.