New Insulation Hope For Older Homes

For nearly a decade most home building codes have required insulated foundations, where hefty energy loss can occur. The problem is, most houses were constructed before the new regs went into effect. To bring older homes up to snuff, building products company CertainTeed has unveiled what it claims is an easy retrofit — a system of insulated rails that are installed around the exposed slab edge or foundation wall of the home called EnergyEdge.

“Ten percent or more of a home’s energy loss can come from an uninsulated foundation, and 60 percent of that loss occurs in the foundation’s top 8-inches. Adding insulation to the slab edge or foundation wall offers an incredible return on investment,” said Keith Reifke, national sales and business manager for CertainTeed’s Pipe & Foundations business. Reifke said homeowners can recoup “up to $200 a year in heating costs by adding the EnergyEdge system, which also qualifies for the federal energy tax credit.”

CertainTeed EnergyEdge

Image via CertainTeed

In a press release announcing the product, CertainTeed said handy homeowners can apply the system to the exposed slab edge or other exposed foundation of their home, or hire a  contractor install the system. The rails come in 12-foot lengths and can be sliced and diced using standard building tools. CertainTeed said the system provides a R-10 thermal resistance value and meets 2009 International Energy Conservation Code requirements. Cost of the system was not announced.

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Pete Danko is a writer and editor based in Portland, Oregon. His work has appeared in Breaking Energy, National Geographic's Energy Blog, The New York Times, San Francisco Chronicle and elsewhere.

1 Comment

  • Reply September 8, 2010


    Unfortunately heat always moves to cold……….making this a waste of time and money.
    It would be better to insulate the floor…for a better result, more comfort save more money.

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