A material that reflects radiant heat, typically a foil-faced or foil-like material used in roof systems. Used properly in some climates, it can reduce cooling requirements but has no positive effect on heating requirements.
A layer of metallic foil placed on the back of roof decking or attached to the beams just below the roof to reduce heat flow from the roof into the attic, thereby keeping the house cooler. To be effective, a radiant barrier must have its reflective surface face an air space.
a layer of aluminum foil placed in an airspace to block radiant heat transfer between a heat radiating surface (such as a hot roof) and a heat absorbing surface (such as conventional attic insulation at the ceiling level)
a layer of metallic foil or other reflective material that blocks radiated heat, assisting in the energy performance of a home
a low emissivity surface placed in the path of thermal radiation that blocks heat transfer
a material placed in an airspace to reduce heat transfer
a material that is good at blocking the transfer of radiation across a space
a material that restricts the transfer of thermal radiation by reflecting the radiation that strikes it and by preventing the radiation of heat to other surfaces
a metallic foil material that, when properly installed next to an airspace, reduces the transmission of radiated heat
a metallic foil material that, when properly installed next to an Full line of
an energy saving device installed in the attics of homes and buildings that is excellent at reflecting heat and poor at absorbing heat
a reflective foil installed under the roof to reflect radiant heat back to the roof and away from the ceiling
a reflective surface that blocks heat transfer between a heat-radiating surface and a heat-absorbing surface
a reinforced heavy-duty aluminum foil sheet that is stapled to the roof rafters to reflect the summer heat, keeping the attic cooler
a shiny surfaced material, such as aluminum-coated plastic sheeting, installed in the attic such that the shiny surface faces an air space (the attic space or air space between the barrier and the roof sheathing)
a single sheet of reflective materials positioned on one side of a cavity
a thin layer of aluminum foil which blocks radiant heat transfer from the sun
A radiant barrier is a reflective surface, on or near a building component, that intercepts the flow of radiant energy to and from the building component.
Aluminum foil installed over the air conditioned living area of the home between the interior ceiling and the roof of the home. It is typically stapled to the undersides of the sloped roof trusses. Each piece is taped and sealed. Our trade's people advise us that this lowers the temperature in the middle of the summer in attics 30 to 40 degrees. This should have a large impact on utility cost.
A thin, reflective foil sheet that exhibits low radiant energy transmission and under certain conditions can block radiant heat transfer; installed in attics to reduce heat flow through a roof assembly into the living space.
Radiant barriers or reflective barriers work by reducing heat transfer by thermal radiation. All materials give off, or emit, energy by thermal radiation as a result of their temperature. The amount of energy emitted depends on the surface temperature and a property called the emissivity (also called the "emittance").