Heat radiating form the sun will come into contact with the roof of your home, and be absorbed by the attic. Just because you have attic insulation installed, your home is not protected, as traditional attic insulation cannot prevent heat from being absorbed. It will only slow down the rate of which heat is being absorbed. Installing a radiant barrier can reduce heat gain in the attic by 40%. This can lead to a 17% reduction on your energy bills. Unfortunately most homeowners are not aware that if the radiant barrier is not properly installed, it can actually cause their roof to rot. This article will take a look at how this happens, and how you can fix this.

How Radiant Heat Barriers Cause Rotting

Radiant barriers that are not properly installed to the roof trusses or decking will ultimately cause the roof to rot. If the barriers are not properly installed, they will allow a pocket of air to accumulate between its surface and the roof surface. Heat will easily get trapped in these crevices, and moisture will start to accumulate. The moisture will slowly break down the roofing structure. 

Possible Solutions to Consider

Unfortunately, most homeowners typically do not notice that their roofs are rotting until it is too late. To prevent yourself from being one of these victims, you should always inspect your roof at least once a year. If you notice any rotting or suspect that there is rotting, you should contact a roofing contractor immediately.

If you catch the problem early on, the roofing contractor may be able to reinstall the radiant barrier properly. Depending on the extent and severity of the damage already caused, a roofing contractor may also recommend:

  • replacing any shingles that are starting to rot or are already rotting;
  • repairing parts of the roof that may already be compromised structurally; or,
  • installing additional attic ventilation, such as gable vents, attic fans and more.


Although installing radiant barriers can be beneficial to your home, mistakes do happen, and at times, if the radiant barriers are not properly installed, they can cause a lot more damage than good. Make sure you set a reminder to get your roof inspected annually — especially if you have just installed a radiant barrier. You want to make sure that you catch any problems that may emerge early on in order to prevent having to tear down and rebuild the roof of your home, which will be costly and stressful process. Contact a business, such as roofing contractors Greely CO, for more information.