During the day, the Sun warms our homes through Solar Radiation. This is the process by which the Sun’s light is transferred into heat.  Fortunately, preventing attic and home heat can be as simple as using Solar Guard® reflective insulation to slow the entry of heat into the attic and home.

How SolarGuard Reflective Insulation Works

In the same way that the air in a closed car left in direct sunlight will be much hotter than the surrounding air, the enclosed space of an attic when the roof is struck by direct sunlight will also be much hotter than the air around it.

As air is warmed, it will also expand.  Without adequate venting for expanding air to escape, this hot air will tend to push down into the home making the house even hotter.   As an example, in many two story homes the upstairs is typically hotter than the ground floor.

Solar Guard®, made with 2 layers of reflective foil and an insulating fiberglass core, is superior reflective insulation for new-home construction and retrofitting an existing home.  In hot climates Solar Guard® is much more effective at preventing heat gain than thermal insulation. When properly installed and vented Solar Guard® is:


  • Energy Star Rated
  • Reflects up to 93% of Solar Radiation
  • Can lower attic temperatures by up to 40 degrees
  • Addresses all three forms of heat, Radiation, Convection & Conduction
  • Has a insulation value of R11.6
  • Has a Superior Class 1 Fire Rating
  • Micropores allow moisture escape
  • Bird and rodent resistant
  • Easy to install—Lightweight rolls
  • No itchy fibers-Materials are encapsulated
  • Manufactured in the USA


Note: SolarGuard Reflective Insulation is two layers of radiant barrier plus insulation. As of December 2012 Hawaii’s Energy Code was revised to allow for Radiant Barrier in walls of new and existing homes.

Solar Guard is amazing, my house is so much cooler.  I’m trying to tell my neighbors how well this works & that this is the real deal! — Roli R, Temple Valley, Kaneohe, Hawaii

For more information download  Solarguard-Insulation Technical Specs –PDF 1 MB

Federal Tax Credits

EDIT: The Tax Credit for Home Insulation expired in December 2012.  Even without credits, insulation is still a great value and highly effective in cooling most homes.

There are also tax credits and incentives available for the installation of Solar Guard®.

  • The American Recovery and Reinvestment Act of 2009, was signed on Feb 17, 2009, increasing many of the tax credits.
  • The Emergency Economic Stabilization Act of 2008 extended tax credits for qualifying energy efficient home improvements through 2009.
  • The Energy Tax Incentives Act of 2005 Section 25C allows for tax credits on energy upgrades including insulation products when purchased in 2006 or 2007.

For more information contact Island Cooling or see: Energy Star on Tax Credits