Ice House Roof®
Stitt Energy Systems’ Ice House Roof® is a foil covered flexible substrate designed to improve the performance of your home’s energy envelope. The panels are sized to fit between 24-inch on-center roof rafters and are lightweight and easy to install in both new and existing homes. They provide potential energy savings of 46-50%. Best of all, this roof cooling technique is truly passive. It doesn’t require any supplemental power, maintenance, or roof penetrations for power vents or wind turbines.
Inspiration for the Ice House Roof® came from 18th century icehouses. Before refrigerators and freezers, people cut ice off frozen lakes, packed it in sawdust, and stored it in double-roofed shelters. This double-roof construction created vertical ventilation channels between the two roofs that drew in cooler outside air from the lower roof edge. As air traveled through the channels, it absorbed heat and carried it out the top ridge vent. The more intense the sun’s radiant energy, the faster the air moved through the channels to cool the roof. This ventilation kept the interior of the icehouse cooler.
Like the original design, Stitt Energy Systems’ Ice House Roof® requires continuous ridge and soffit venting. We recommend applying spray foam insulation to the side facing the attic to air seal and insulate the attic. The insulation improves the efficiency of any heating and air conditioning ductwork in the attic by eliminating extreme temperature swings in the space. It also maintains a consistent roof temperature from the eaves to the ridge, which minimizes or prevents the formation of ice dams in cold climates.
You can choose any color roof you want when you use the Ice House Roof® and still not compromise energy efficiency. With standard roof construction, dark asphalt shingles or clay tiles absorb heat and transfer it through the roof decking into the attic. That heat then makes its way into your living spaces. The Ice House Roof® captures that heat and channels it out before it reaches the attic. Problem solved!