A roof with asphalt shingles can endure two levels in advance of overall substitute gets to be vital. Flat roofs with either an EPDM or TPO membrane is usually re-roofed with just one further layer. If the roof has presently been re-roofed or is often a metal roof, you could https://metal-roofers99887.designertoblog.com/60312028/not-known-factual-statements-about-re-roofing