Underlayment as well as Steel Roofing-- Metal Roof Covering 101 with Todd Miller
https://www.edocr.com/v/38zpdg5z/kenset9kko/Underlayment-and-Metal-Roof-Covering-Metal-Roof-10
Still will certainly need a remedy for condensation, yet those options are well recorded and your home builder will certainly have alternatives for you. Steel roofs last much longer and also are much less prone