Insulating Concrete Masonry Walls

Concrete block 4 inch hollow core.

Insulating concrete masonry walls.

Here s how to make sure they are insulated to meet stricter energy standards. Concrete block 8. 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. And there is no effective way to fill the voids in an existing concrete block wall.

Give thermal mass an extra boost with expol masonry wall insulation. New ways to better insulate concrete walls concrete masonry block walls are a popular perimeter wall option in several areas. Storing more heat than timber or metal masonry has long been regarded as an excellent provider of thermal mass. The foam is injected under pressure into the empty cores of masonry walls.

If we increase the r value of the wall to r14 by. Hold onto that warmth and reduce heating costs by using expol s range of high performance expanded polystyrene insulation boards. 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. See citations at masonry below.

Interior insulation refers to insulation applied to the interior side of the concrete masonry as shown in figure 1. Insulated forms available. Concrete masonry wall assemblies whole wall r values for. 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.

Above grade perimeter walls built with concrete masonry units or cmus may only represent about 7 of the new home. 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. 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. 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.

Core fill 500 is a non expanding aminoplast foam that looks like white shaving cream. Walls are much greater than conventional 3 web concrete block walls. David caruso springfield pa.