In homes lacking a radiant barrier at the roofline, the roof absorbs solar heat, which significantly raises attic temperatures, sometimes exceeding 150 degrees Fahrenheit. This intense heat has several detrimental effects on your home’s energy efficiency and comfort.

Elevated attic temperatures can lead to increased heat gain in air conditioning ducts and diminish the effectiveness of mass insulation. It’s crucial to note that the R-values of mass insulation, which measure its resistance to heat flow, are determined at a standard temperature of 75 degrees Fahrenheit. Any increase in temperature can reduce these values, thereby compromising the insulation’s efficiency.

The extreme temperatures not only affect air conditioning and insulation but also saturate the building materials in your attic. These materials can store heat, acting as a heat sink, and continue to transfer heat into your home’s living area even after the sun sets. This results in the air conditioning system running for longer periods, consuming more electricity, and leading to higher energy bills.

Installing a radiant barrier presents a highly effective solution. It can block up to 97% of radiant heat transfer, significantly improving the performance of insulation materials and reducing attic temperatures by as much as 30 degrees Fahrenheit. With a cooler attic, less heat is transferred into your air conditioning ducts.

By lowering attic temperatures and enhancing the efficiency of your insulation, radiant barriers contribute to reduced cooling and heating costs. This not only leads to immediate savings on energy expenditures but also promotes a more comfortable and energy-efficient living environment throughout the year.