How Radiant Barriers Work
Heat transfers very easily from warm areas to cooler areas. The Sun's radiant heat can make roof temperatures sore to over 150 degrees, causing attic temperatures to easily reach 120-130 degrees. That heat can even reach the attic floor and transfer right into your living space.
Radiant barrier reduces this heat from the roof decking by reflecting the radiant heat back out of the attic and helps keep areas below where it is installed cooler.
Radiant barrier comes in many forms, from bubble wrap to a thin material like aluminum foil, and is a great way to reduce radiant heat and keep your attic cool in the summer.
Radiant Barrier Cost
Radiant barrier cost will depend on a few factors but mainly the size and pitch of your attic. If insulation is present or very deep this can also have an affect on cost of radiant barriers. It's always best to have an in-home assessment to determine cost.
Choosing Radiant Barrier
When deciding the type of radiant barrier to install, here are 3 key areas to look for:
- Non-laminated radiant barrier
- Protective coating applied
- Passes newest fire codes
How to Install Radiant Barrier
Many contractors today are installing radiant barrier incorrectly by placing it directly on the floor of the attic.
According to the Department of Energy, this causes radiant barrier to lose it's effectiveness very quickly and can also trap moisture and lead to mold.