Roofing Paper Under Metal Roof

Felt paper or not under metal rofing okay i know this is a professional site didn t think i would geta good answer on diy i have a roof decked with osb questions is some say no felt other say need felt because of sweating and it will root the osb 30 felt or not.
Roofing paper under metal roof. A metal roof under the same conditions may stay more than 50 f cooler than an asphalt roof which saves both energy and money. Metal roof wall products systems sheffield metals. It s thinner lighter and a single roll can cover much more area than a similarly sized roll of felt. The many style options of metal roofs metal roofing comes in numerous styles that mimic modern architectural shingles unique clay tiles traditional standing seams metal roofs with panels that run vertically up the.
For more than 25 years organizations such as the national roofing contractors association nrca and the canadian asphalt shingle manufacturer s association casma have included roofing felt in their roofing and waterproofing recommendations it is also a requirement under many building codes. Long term in service roof performance can be affected by several important factors including. This paper is a new and in some aspects improved material for roofing underlayment. Have you ever approached a roofing project and wondered.
And even though it is thinner it is just as strong as felt and less resistant to ripping. Is roofing felt necessary. The quality and type of underlayments used on the project in the long term will affect the overall performance of the roof.