A space suit can be 310°F on the side facing the sun and -290°F on the opposite side. But a flexible radiant barrier laminated into the fabric allows the space suit to reflect the searing heat of the sun and retain the body’s warmth on the dark side.
Your Columbus home is like a space suit. It should keep heat in when the weather is cold – and keep it out when the weather is hot. The same radiant barrier technology used in space can produce dramatic results in your attic… and bring your heating and cooling bills down to earth. EShield Attic Energy Barrier relies on this same space age technology!
Studies have shown that up to 93% of ceiling heat gained in summer months occurs from radiant heat transfers from attics heated by radiant energy from the sun.
Roof shingles and decking absorb radiant heat generated by the sun and transfer this heat into attic spaces heating up existing insulation. Once this existing insulation meets its saturation point, it then radiates this heat to all surfaces within the interior of the home (ceilings and walls).
EShield radiant barrier reflective insulation products can reduce attic temperatures by up to 30 degrees when installed to the underside of roof rafters. Lowering attic temperatures provides a significant benefit by reducing air conditioner loads and energy usage.
The University of Nevada Las Vegas conducted independent research and discovered that radiant barrier insulation can reduce energy consumption by up to 35% during peak hours in the summer and by up to 29% over extended periods.
Our radiant barrier foil insulation products are made from 99% pure aluminum making them the best at blocking 97% of the radiant heat that attempts to enter building structures and by up to 29% over extended periods.
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. Heat transfer by convection occurs when a liquid or gas is heated by a surface, becomes less dense, and rises (natural convection), or when a moving stream of air absorbs heat from a warmer surface (forced convection). Radiant heat travels in a straight line away from any surface and heats anything solid that absorbs the incident energy. Radiant heat transfer occurs because warmer surfaces emit more radiation than cooler surfaces.
When the sun heats a roof, it’s primarily the sun’s radiant energy that makes the roof hot. A large portion 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.