Radiant Loss In Attic

All objects and bodies give off radiant heat.

Radiant loss in attic. By reducing the amount of radiant heat reaching the insulation in your attic the insulation remains cooler and is able to keep your home more comfortable. The radiant barrier for the roof you can find a wide variety of these materials that range in size color density and price however they have one thing in common and that is their high level of thermal loss. Radiant barrier reflects radiant heat back towards its source reflecting as much as 97 reducing summer heat gain and winter heat loss reduces attic temperatures by up to 30 degrees f. The union of the materials results in radiant barrier sheathing that is unsurpassed in reducing heat transfer.

It is meant to supplement insulation not replace it. A radiant barrier can lower heat transfer from attics to the building below keep the attic space cooler and lower cooling costs by up to 17 in warmer climates. When applied with a air space. Radiant heat must be reflected with a radiant barrier.

A radiant barrier is designed to increase the effectiveness of your thermal envelope. According to the us department of energy radiant barriers are more effective in hot climates than in cold ones and can reduce cooling costs 5 10 percent in a warm sunny climate. It s usually installed in the attic to cut heat gain in the summer and heat loss in the winter. Radiant barriers are utilized to reduce summer heat gain in attics and help to improve the efficiency of green building envelopes.

A radiant barrier is a layer of metallic foil that blocks heat. Even the insulation in your attic gives off radiant heat to the cold attic space in the winter and to the living space in the summer.