Roofing Oshawa, https://www.roofingoshawa.xyz/, Address: 372-378 Chaleur Ave, Oshawa, ON L1J 6N7, Canada , Phone Number: 647-477-2056 From minimal repairs to finish replacements, Reasonably priced Roofing Answers proves that good quality roofing doesn't have to break the financial institution. Prodex is a category 1 vapor barrier. A vapor barrier (humidity barrier) https://www.homepros411.com/oshawa/roofing/roofing-oshawa