Does a Steel Roof Covering Need an Underlayment?
https://mill-wiki.win/index.php/8_STEPS_HOW_TO_INSTALL_STEEL_ROOF_COVERING
We reside in Southern NH. Winters are very cool and also we have a blog post as well as beam of light residence with really high ceiling. We lose a lot of heat through the ceilings (I assume), so we are obtaining