Where Older And Newer Roofs Connect: A Practical Guide for Norwich Properties A house can have one address and several different roofing systems. The original pitched roof may be finished with traditional tiles or slate, while a rear extension uses a low-pitched roofing system, a porch has its own drainage, https://pulselab-businessfeed852.blog2freedom.com/43423547/roofers-norwich-options-to-consider