Screw Location Recommendations
https://charliepiny807.page.tl/What-Is-The-Most-Affordable-Roof-To-Install.htm
We have a 1890's house with a mix Mansard style roofing and also standard sloped roofing system. We are going with a combination roofing system (Malarkey Windsor Shingles on Mansard as well as standing seam on