A warning about radiant barriers aka foil insulation.
Foil roof insulation reviews.
Last week i received an email from a concerned reader who said his 85 year old mother in law had recently purchased a 2 500 radiant barrier insulation system for her 1 800 sf townhouse in austin mn.
A comparison review of multi foil insulation products superquilt thermaquilt sf19 triso super 10 tlx silver ybs insulation superfoil actis tlx.
The r value of foil faced bubble wrap is so low that it has few if any advantages over rigid foam.
Foil faced plywood or oriented strand board sheathing is also available.
When installing a foil type barrier it s important to allow the material to droop between the attachment points to make at least a 1 0 inch 2 5 cm air space between it and the bottom of the roof.
Since the product often costs more per square foot than 1 inch thick rigid foam rated at r 5 why would anyone use bubble wrap as insulation.
If installed properly it can reflect up to 97 of radiant heat and shave off one fourth of your heating and cooling costs according to.