Should you use a single or double sided radiant barrier roofing underlayment? http://www.RoofingFoil.com Ed explains the difference between the single and double sided radiant barrier RoofingFoil and the correct time and applications for using each product.
Order a sample packet here to see both: https://goo.gl/70ehAv
See pricing for the RoofingFoil™ barrier here: https://goo.gl/DvNSTW