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The
utilitarian concrete block has gained new respect in recent years.
Now called "concrete masonry units" or "CMUs,"
blocks are used increasingly as substitutes for conventional
wood-framed, above-grade exterior walls. Concrete masonry
construction may cost slightly more, but builders and homeowners
like its durability, strength and heat-retention qualities.
Insulation can be foamed or inserted into the hollow cores or
applied as a rigid board to the surface to increase resistance to
heat flow.
Concrete
block won't burn, rot or be eaten by termites. And it produces a
wall that is secure, sound-deadening and effective at reducing
thermal swings. "If you want permanence, security, resistance
to fire, wind and insects, you ought to consider concrete
masonry," says Robb Jolly of the National Concrete Masonry
Association (NCMA). He adds, "Concrete masonry has a life that
extends into the hundreds of years. It is still one of the most
environmentally friendly products on the marketplace."
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Cored |
Solids |
Halfs |
| 4" Blocks |
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| 6" Blocks |
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| 8" blocks |
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| 12" Blocks |
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| Barrel Blocks |
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| Chimney Blocks |
Clay Flu's |
| 8"x8" |
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8"x8" |
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| 8"x12" |
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8"x12" |
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