When installing a radiant barrier over the attic floor, over existing insulation in place or not, you MUST use a perforated radiant barrier. This is because moisture-laden air generated in your home from breathing, washing clothes, bathing, running the dishwasher, etc travels upwards and must be able to pass through the radiant barrier to escape your attic. If a solid radiant barrier were used in this location, it would trap the moisture in the air and condensate resulting in water droplets that would drip onto your insulation/attic floor and rafters causing damage.

PATIDAR Radiant barrier lowers your heating and cooling costs by reflecting radiant heat back to the heat source making your home more comfortable both in the summer and winter months saving you money year round.

Our PATIDAR Radiant barrier BLOCKS 97% of the thermal radiant heat energy from passing through and is comprised of Seven layers of 99.9% pure aluminum and is reinforced with a fabric creating a highly durable tear-resistant product perfect for stapling and nailing without the fear of pulling through the material.

Based on how you intend to install Radiant barrier, determine whether you need the breathable or vapor barrier version.