DynaGuard™ Radiant Barrier – Put Simply, It’s Brilliant
By now most homeowners are well aware of the importance of properly insulating and sealing air leaks to save home energy costs. Adding insulation in walls and ceilings, caulking gaps around windows and doors are familiar practices. A typical first fix for home energy efficiency in Attics is to increase the mass insulation– fiberglass, cellulose, polystyrene or spray foams – base to achieve higher R-value. These are helpful for separating the heat or cold in your attic from your living space. An important achievable goal is keeping the attic cooler in the summer to lower cooling costs.
DynaGuard is polystyrene insulation with highly reflective films applied to both the front and back. It’s these two bright1 surfaces that help cool your attic by reflecting radiant energy. DynaGuard forms a radiant barrier by using bright polished aluminum surfaces to reflect radiant energy.
Radiant energy is an electromagnetic wave in the infrared light spectrum, and is the principal mechanism of heat transfer from warm surfaces to cooler surfaces – like your attic roof to a bedroom ceiling.
1) Hemispherical Emittance Test performed by R&D Services. Results available upon request.
2) U.S. Department of Energy. Radiant Barrier Attic Fact Sheet, June 14, 2009 http://www.ornl.gov/sci/roofs+walls/radiant/rb_02.html