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2. Metal roof - Wikipedia

   en.wikipedia.org/wiki/Metal_roof

   A metal roof is a roofing system featuring metal pieces or tiles exhibiting ... Efficiency ranges from 10–18% but costs only about $2.00–$3.00 per watt of ...

3. Flat roof - Wikipedia

   en.wikipedia.org/wiki/Flat_roof

   A study by Ducker International in 2005 identified the average cost per year of a metal roof to be US$3.2 per square metre ($0.30/sq ft) while single-ply roofs stood at $6.1/m 2 ($0.57/sq ft) and built-up roofing at $4.0/m 2 ($0.37/sq ft).

4. Roofer - Wikipedia

   en.wikipedia.org/wiki/Roofer

   A roofer, roof mechanic, or roofing contractor is a tradesman who specializes in roof construction. Roofers replace, repair, and install the roofs of buildings , using a variety of materials, including shingles , single-ply , bitumen , and metal .

5. Building material - Wikipedia

   en.wikipedia.org/wiki/Building_material

   For example, an asphalt shingle roof costs less than a metal roof to install, but the metal roof will last longer so the lifetime cost is less per year. Some materials may require more care than others, maintaining costs specific to some materials may also influence the final decision.

6. Metal profiles - Wikipedia

   en.wikipedia.org/wiki/Metal_profiles

   Metal profile sheet systems are used to build cost efficient and reliable envelopes of mostly commercial buildings. They have evolved from the single skin metal cladding often associated with agricultural buildings to multi-layer systems for industrial and leisure application. As with most construction components, the ability of the cladding to ...

7. This elderly couple, 80s, armed with garden hoses, saved ...

   www.aol.com/finance/elderly-couple-80s-armed...

   "The roof is the most at-risk in a wildfire because of its size and orientation," the agency explains. ... the agency suggests covering exterior attic vents and under-eave vents with metal wire ...