Ask to tour a jobsite and get references from other customers.Ĭomposite ICFs/Insulated Concrete Blocks (ICBs): Visit the manufacturers’ websites and sit down with the local distributor. In summary, these charts are a good place to start in selecting the best form for your project, but additional research will be needed. ![]() Work with a distributors that will answer questions, rent bracing and other equipment, and provide immediate assistance if you come up short on anything. Even more important than cost is the installer’s experience and familiarity with the forming system.įor do-it-yourselfers, manufacturer support is critical. Reversible interlocks and specialty forms can make installation go faster and reduce waste. Panel systems (knockdown forms) reduce shipping, but require more labor as jobsite assembly. The thickness of the foam sidewalls, which affects form strength, insulation value, and amount of raw material used, also varies.įreight is a significant factor in pricing, which is why the chart notes the location of molding facilities. Careful readers will notice a few waffle- and screen-grid systems still on the market, which use far less concrete, but require more engineering.Īctual core widths vary widely a six-inch nominal wall may vary from 5.5 to 6.75 inches, which accounts for the variability in the “Sq. ![]() However, some are 12″ or 18″ high, and a few are installed as vertical planks. Flat wall ICFs measuring 48″ x 16″ have become industry standard.
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