Small building projects can sometimes have budgets that restrict the use of precision-engineered walls. In those cases, unique wall designs that require engineering may require the use of extra tools, manpower, or construction know-how. With some modern building systems, however, precision-engineered walls are not only affordable for average homebuilders, but also easy enough to install that they may not require professional help.

Producing Well-Engineered Walls With ICFs

Insulated concrete forms are one of those building systems that put strong, complex, structurally engineered walls within the reach of the average homebuilder. ICFs are blocks of Styrofoam that are used as both the forms for pouring the concrete and as layers of insulation surrounding the concrete wall. They are much easier to work with than traditional wooden concrete forms, and allow even builders with moderate experience to install radius walls, ledges, and large windows and doorways.

The Styrofoam blocks that make up the core of ICF construction interlock with one another to form hollow, stackable Styrofoam walls. They are great for both below-grade and above-grade construction, and can be easily modified to produce complex structural forms. Once the concrete is poured into the foam, the resulting wall is solid, durable, well insulated, and airtight.

The walls that are produced by ICF construction systems form a tight thermal envelope around a house. They can reach R-values (used to rate thermal insulation) of R-40 or more, compared to R-20 ratings for walls with traditional framing. Many brands of ICFs are also engineered to have high (three hour) fire ratings and withstand hurricane-force winds.