Energy efficiency and eco-friendliness should be at the forefront of every homeowner's mind. Not only is it wise to lower your utility bills as much as possible, it's also every citizen's responsibility to start lowering his or her own carbon footprint. Despite the shift to LED lighting and efficient HVAC systems, many homes are still lagging behind when it comes to their walls and insulation.
Insulation upgrades are generally considered a great investment. But regardless of what method you are implementing, it could be a never-ending losing battle. This is because traditional wall construction allows for only so much of a protective barrier and thus a constant stream of heated or cooled air being lost out the walls. An Insulated Concrete Form (ICF) home plan could be answer.
Insulated Concrete Forms are essentially a “wall sandwich.” They are two layers of insulating material with a substantial (4- to 12-inch-thck) cast-in-place concrete slab in between them. Instead of a thin sheet of drywall and a vulnerable layer of insulation, air must now try to penetrate two thick panels of rigid foam and a reinforced concrete wall. The result is not only an incredible increase in energy efficiency but also thermal and structural improvements.
ICFs are used in everything from residential to commercial to industrial buildings. Traditional finishes and materials can be applied to both the exterior and interior faces (siding, paneling, etc.) so the styles resemble timber-constructed home plans. The process was initially used only for high-end buildings in the early- to mid-1990s because of the cost. Today, an influx in energy-efficiency consciousness combined with more precise manufacturing methods have made ICF building viable for almost any type of construction.
ICF construction has become not only a popular option but rather almost a preferred building method for both homeowners as well as contractors. The benefits that are most appealing to property owners include:
On paper it would be assumed that contractors would prefer the more familiar, traditional method of timber framing a home. The truth is implementing ICF also benefits the person installing them in ways such as:
Although the materials prices may be higher with ICF, the efficient labor can actually balance the cost compared to lumber building.
If you're thinking about using insulated concrete forms for your new construction you should recognize that there are three basic types. Flat systems offer a continuous wall of concrete. Grid systems offer a waffle pattern while post and beam systems represent a similarity to a fence. Each of these types is code approved.
If you are concerened about energy efficiency – and who isn't? – and you want a structure that is strong enough to withstand high winds and other severe conditions, you might want to consider ICF construction for your next home. Let us know what you think of ICF construction in the comments below.
Footnote: the top photo in the lead image is of a 2-story, 4-bedroom Mediterranean style oncrete block/ICF design home plan (House Plan #175-1064).
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