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2. List of commercially available roofing materials - Wikipedia

   en.wikipedia.org/wiki/List_of_commercially...

   Stone slabs require a very heavyweight roof structure, but their weight makes them stormproof. An obsolete roofing material, now used commercially only for building restoration. Collyweston stone slate named after the village of Collyweston; Solar shingle; Metal shakes or shingles. Long life. High cost, suitable for roofs of 3:12 pitch or greater.

3. Corrugated galvanised iron - Wikipedia

   en.wikipedia.org/wiki/Corrugated_galvanised_iron

   Corrugated galvanised iron (CGI) or steel, colloquially corrugated iron (near universal), wriggly tin (taken from UK military slang), pailing (in Caribbean English), corrugated sheet metal (in North America), zinc (in Cyprus and Nigeria) or custom orb / corro sheet (Australia), is a building material composed of sheets of hot-dip galvanised ...

4. Metal roof - Wikipedia

   en.wikipedia.org/wiki/Metal_roof

   Standing seam metal roof. A metal roof is a roofing system featuring metal pieces or tiles exhibiting corrosion resistance, impermeability to water, and long life. It is a component of the building envelope. The metal pieces may be a covering on a structural, non-waterproof roof, or they could be self-supporting sheets.

5. Cold-formed steel - Wikipedia

   en.wikipedia.org/wiki/Cold-formed_steel

   50 65 1.30 12 Cold-formed welded and seamless high-strength, low-alloy structural tubing with improved atmospheric corrosion resistance A847 50 70 1.40 19 Zinc-5% aluminum alloy-coated steel sheet by the hot-dip process A875 SS Gr. 33 33 45 1.36 20 Gr. 37 37 52 1.41 18 Gr. 40 40 55 1.38 16 50 Class 1 50 65 1.30 12 50 Class 3 50 70 1.40 12

6. 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). [25] Metal roofs are also one of the most environmentally sound roofing options, with most metal roofing ...

7. Your Cholesterol Could Be A Key Indicator Of Dementia. A ...

   www.aol.com/cholesterol-could-key-indicator...

   Try to reach and maintain a healthy weight. Avoid smoking. If you have high cholesterol and lifestyle tweaks don’t help, the AHA notes that some people need to take medicine to lower their levels.