Keep Your Home or Office Warmer in the Winter and Cooler in the Summer
Our low-cost passive Thermal Barrier Fabric will save you money and reduce your energy bill.

The high cost to keep your home warm in winter and cool in summer can become much more affordable with our four low-cost radiant thermal products now available from the company that invented it: ClearDome Solar Thermal. These unique thermal products are all UV resistant and the first of their type anywhere.

Our tough new reflective Thermal barrier fabric can be used in both summer and winter, indoors and outdoors, to restrict the natural flow of heat radiating inside when it's warm or trying to escape out a window when it's cold. Room air temps will rise as much as 10 degrees with the same amount of heat indoors when all windows in a room are covered.

It's made of a weaved, super tough high density polyethylene plastic that's coated with a thin, highly reflective metallized surface. The most effective winter use is hanging it on the inside of windows or skylights, where 50% of a building's warm air is lost to the cold outdoors. It comes with easy to attach suction cup hooks that are placed on the four corners of the glass for quick fabric mounting. It can be sewn for drapery rods or hung outside of cloth drapes for increased performance.

Nearly half the incoming light will still enter the room and you can still see outdoors through the fabric.

The three scenes below demonstrate it's exterior cooling ability on a green painted wooden patio deck.  The fabric has optional grommets and edge trim (suggested for outdoor use) and is hung from ropes on one side (shown) and attached to the wall with screw hooks on the other. This was on a sunny 74 degree F day in summer. This type of filtered light is ideal for plant growth. It also provides excellent cold weather frost protection for potted and garden plants and trees.

Notice the 62 degree difference between the sun lit (left) and Thermal barrier(center) shaded side.

All sizes and fabrics can easily be cut with scissors to fit any size window and will not unravel after being cut. Add about 3-5" length and width to allow for slight edge curling. It can also be used on outings and camping trips to reduce summer heat and sun over tents and in the open.

The photo below shows it hung as an exterior curtain on a patio door, which in summer reduces heat penetration to the inside by 70% while dropping the light transmission by slightly less than half. It can also be placed over a patio cover, used as window awning, or suspended by hooks or ropes, (photos above) with the same results. As an indoor curtain it keeps most heat indoors at night, or on north facing windows during the day, drastically reducing heating bills. In numerous cold weather tests, when the outdoor temperature at night was 31 degrees and the inside bare glass temperature (double pane glass) was 56 degrees, the temperature on the room side of the radiant barrier fabric was a warm 71 degrees, only one degree cooler than the insulated inside wall temperature.  A series of tests by an environmental testing agency in Missouri with 25 degree temps outdoors showed the same results, the same as another customer in Minnesota. It's better than adding an insulated wall to the inside of the glass becaused instead of absorbing the heat, it reflects it back into the room.

Outdoors, it can be also be used for screens over windows or as a temporary summer thermal shadecloth on a roof or greenhouse to reduce solar heat gain while passing 45% diffused light that's ideal for plant growth. As an added benefit, 15 mph winds will slow to only 2-3 mph  behind the fabric outdoors on your next outing, which nearly eliminates the wind chill effect on cool days.

No other thermal barrier-related fabric offers this many benefits for controlling temperatures both outdoors and indoors. At only two pounds, the small piece is easy to install and remove. The only other competitive thermal window coverings available cost about 10 times the price of our standard size, with nearly 100% sun blockage, and cannot be used outdoors or in wind control situations.