Perforated Radiant Barrier
45 Per
Radiant Barrier For Roof Insulation
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Radiant barriers are installed in homes & Factories and Warehouses, primarily to reduce summer heat gain and reduce cooling costs. The barriers consist of a highly reflective material that reflects radiant heat rather than absorbing it.How They Work Heat travels from a warm area to a cool area by a combination of conduction, convection, and radiation. Heat flows by conduction from a hotter location within a material or assembly to a colder location, like the way a spoon placed in a hot cup of coffee conducts heat through its handle to your hand. Heat transfer by convection occurs when a liquid or gas -- air, for example -- is heated, becomes less dense, and rises. As the liquid or gas cools, it becomes denser and falls. Radiant heat travels in a straight line away from any surface and heats anything solid that absorbs its energy. When the sun heats a roof, it's primarily the sun's radiant energy that makes the roof hot. Much of this heat travels by conduction through the roofing materials to the attic side of the roof. The hot roof material then radiates its gained heat energy onto the cooler attic surfaces, including the air ducts and the attic floor. A radiant barrier reduces the radiant heat transfer from the underside of the roof to the other surfaces in the attic. A radiant barrier works best when it is perpendicular to the radiant energy striking it. Also, the greater the temperature difference between the sides of the radiant barrier material, the greater the benefits a radiant barrier can offer. Applications : Radiant barriers are more effective in hot climates than in cool climates, especially when cooling air ducts are located in the attic. Some studies show that radiant barriers can reduce cooling costs 5% to 10% when used in a warm, sunny climate. The reduced heat gain may even allow for a smaller air conditioning system. In cool climates, however, it's usually more cost-effective to install more thermal insulation than to add a radiant barrier.
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Aluminium Foil Bubble Film
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5000 Square Meter (MOQ)
We are offering aluminium foil bubble film. roll size (w x l) 1.2m x 40m bubble size 4mm x 10 mm total thickness (mm) 8 mm reflection ratio 97% thermal resistance emissivity 0.03-0.04 temperature range -122 ℉ to 230 ℉(-50°c ~ 110 °c) minimum order quantity 5000 mtrs (india) container load (export) the product consists two layers of air bubble film laminated with one side metalized foil and poly film on another side. This double bubble insulation material reflects 97 % of radiant heat.
Reflective Thermal Insulation
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Reflective thermal insulation is composed of a layer of insulation which can be supplied in different thickness and compressibility, by order, with a sheet of aluminum laminated on one or both sides of the insulation. The sheets of aluminum are intended for reflecting heat rays transmitted through the different building elements, reflecting them away from the building in the summer, or reflecting and preserving the heat in the building in the winter, and blocking vapors to prevent humidity accumulation.Reflective thermal insulation provides insulation for all kinds of roofs – light roofs, shingle roofs, attics and industrialized roofing, such as metal roofs. Widespread use is made of this for the purpose of thermal insulation for outside walls in combination with a vapor block – the aluminum sheets – for preventing humidity accumulation. The reflective thermal insulation products are offered in a range of thickness and compressibility for the purpose of creating different levels of insulation.
Reflective Insulation
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Reflective Insulation, xlpe foam, aluminum foil insulation