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Tempshield® Reflective Attic Stair Cover

Radiant Barrier

Tempshield® Reflective Attic Stair Cover

Highlights

The Tempshield® Reflective Insulation radiant barrier Attic Stair Cover is easy to install and blocks air flow from a residential living space to the attic. Blocking air movement is especially important in winter months when convective heat rises when a home is heated. The Tempshield® Reflective Insulation radiant barrier Attic Stair Cover comes in popular sizes and requires only a staple gun for easy installation. The Tempshield® Reflective Insulation radiant barrier Attic Stair Cover is constructed with industrial strength zipper and seams for long-lasting durability.

Key Benefits

  • Lightweight
  • Easy to handle and install
  • Sewn seams for added strength and longevity
  • Easy to use zipper for quick access

Technical Data

Meets ASTM C1313 Standard Specifications for Sheet Radiant Barriers for Building Construction Applications

Product Description

Two-sided reflecting metallized film with polyethylene woven reinforcement

Weight

29.5 lbs per 1000 sq ft roll

Tensile/Tear Strength

Length: 13.23 pounds force
Width: 13.98 pounds force
ASTM D2261

Pliability

70°F±5°F & 50±5% Relative Humidity –
No Cracking or Delamination
ASTM C1313-05

Adhesive Performance

180°F±5°F & 50% Relative Humidity –
No Bleeding or Delamination
ASTM C1313-05

Flame Spread & Smoke

Class A/ Class 1
0 Flame Spread, 5 Smoke Development
ASTM Method E84-10

Resistance to Fungi

PASS – No Growth
ASTM C1338-08

Thermal Properties

EMISSIVITY: 0.05
REFLECTIVITY: 95%
ASTM C1371-04a

Standard Size

25" x 56" x 9"
Other sizes available by special order

Regardless of how much insulation you have in your attic, adding Radiant Barrier will save on your heating and cooling expense, and keep you much more comfortable. Energy savings for heating and cooling can be as much as 17%, depending on a number of factors, including climate, building configuration, materials used, site, family size and lifestyle. Your Radiant Barrier dealer has been trained to evaluate your home or business and advise you of your savings potential.

Just like a space suit, Radiant Barrier reflects the sun’s heat before it can warm up the insulation in your attic. When the insulation stays cooler, your house will stay cooler. It helps to understand how Radiant Barrier will work for you if you think of other things that work in much the same way. Astronauts’ space suits keep body heat and reflect the sun’s heat away. Thermos bottles keep hot things hot and cold things cold. They are almost perfect insulators. The tight seal and air space prohibit heat transfer by conduction and convection. The reflective surfaces inhibit radiation heat transfer. If the bottle starts out hot, it stays hot because very little heat is transferred to the cooler outside. If it starts out cold, it stays cold because very little heat is transferred from the warmer outside.

Radiant Barrier is unlike mass insulation which only slows down or resists heat transfer. Radiant Barrier reflects heat. Heat always goes cold by natural law—the problem is how to keep the heat in the winter and how to keep it out in the summer. There are three ways in which heat goes from warm spaces to cold spaces: conduction is direct heat flow through a solid object such as a wall or a ceiling. Convection is heat movement through air, occurring when air is warmed. The heat expands, becoming less dense and rising. Radiation is the movement of heat rays across air spaces from one warm object to a cooler object. The heat we feel from a wood stove or a quartz space heater is radiant heat. All objects and bodies give off radiant 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. Regular insulation won’t stop radiant heat loss. Radiant heat must be reflected with a radiant barrier.

No. Radiant Barrier has been used extensively in the south, showing no difference in roof temperatures, as confirmed by field tests.

Just like wrapping a baked potato in aluminum foil keeps a potato warm longer by holding the heat in, covering your attic insulation with Radiant Barrier holds heat in the house. Another analogy would be that Radiant Barrier in the winter works just like a space blanket, which, although very thin and lightweight, holds your body heat in. A thin space blanket can keep you warmer than several heavy blankets.

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