Attic Foil Vs Reflectix

26 wide perforated double sided radiant barrier foil for trusses.

Attic foil vs reflectix.

Reflectix website claims 2 layer approach in crawl space like this is similar to r21 fine for my application. When installed properly a reduction of up to 10 in the home s air conditioning usage can result. Reflectix s stated r 14 r values for exterior walls are good only if the reflectix is paired up with r 13 fiberglass batt insulation. Attic foil on the roof leaving the gable vents and ridge vents open.

Reflectix foil insulation e shield low e radiant guard rfoil tempshield eco foil insulation tekfoil reflective insulation energy shield insulation and solar guard vs. Installation instructions and illustrated drawings are recommendations only while proper local construction methods are the responsibility of the installer. For example the r 6 1 masonry value is only good if you provide two 3 4 inch airspaces one between reflectix and the masonry wall and another space between the drywall and the reflectix. With ducts foil faced bubble wrap will work as a radiant barrier in the winter when the ducts are moving warm air and the surrounding space is cold.

Therefore when a radiant barrier is installed in a residential attic it blocks 96 of the radiant energy that is being radiated by the hot roofing materials. 48 wide perforated double sided radiant barrier foil best selling. This equates to a cooler attic resulting in a house that requires less air conditioning usage to maintain comfortable inside. Or should a switch 1 of my laters with 1 5 inch rigid foam panel between rafters results in roof.

Products 60 48 26 rolls. Are foil foam foil bubble wraps fiberglass foil products better. All of the radiant barrier appear to be quality products each prevents radiant heat transfer the primary source of heat flow. Before 2nd foil layer then 3 4 in airgap then t g wood.

The emissivity of reflectix products is 4. The reason is that the radiant heat is coming from the roof and you re trying to stop it from getting into the attic.