Does a Radiant Barrier Cause Moisture or Mold? The Importance of Perforation.

One of the most common questions we get is: "Will putting foil in my attic trap moisture and cause mold?" In a humid climate like Austin or Houston, this is a fair question.

The answer depends entirely on the type of material used. Some cheap, "solid" foils act as a vapor barrier, which can trap rising humidity in your insulation and lead to mold or wood rot.

The Radiant Pro Difference: Perforation At Radiant Pro, we exclusively use industrial-grade, perforated radiant barriers. This material is covered in thousands of microscopic pinholes that allow moisture and humidity to pass through freely while still reflecting 97% of the heat.

Why it matters:

• Breathability: Your attic needs to "breathe" to stay healthy.

• Home Integrity: Prevents the damp, heavy insulation that leads to ceiling stains.

• Health: Stops the growth of allergens and mold in your attic space. Don't let a "solid" foil ruin your roof—always insist on perforated material.