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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. Metal roof - Wikipedia

   en.wikipedia.org/wiki/Metal_roof

   Metal roofs are 100% recyclable and can be made from other recycled products. Asphalt shingles are petroleum based with other chemicals making their recycling process more toxic, most shingles are not recycled and 20 billion pounds (9.1 million tonnes) are sent to landfills every year and take hundreds of years to decompose.

4. Reflective surfaces (climate engineering) - Wikipedia

   en.wikipedia.org/wiki/Reflective_surfaces...

   As part of the new efforts, DOE will install a cool roof, whenever cost-effective over the lifetime of the roof, during construction of a new roof or the replacement of an old one at a DOE facility. In October 2013, the United States Department of Energy ranked Cool Roofs as a 53 out of 100 (0 to 100 weighted average) for a cost-effective ...

5. Copper in architecture - Wikipedia

   en.wikipedia.org/wiki/Copper_in_architecture

   [11] [46] [47] A European study comparing roofing costs of copper with other metals, concrete and clay tiles, slate, and bitumen found that in the medium to long-term (for lives of 60 to 80 years and 100 years and over), copper and stainless steel were the most cost effective roofing materials of all materials examined. [19]

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7. Fireproofing - Wikipedia

   en.wikipedia.org/wiki/Fireproofing

   Fire walls usually extend the full length of a building, from foundation to roof. [3] Fire barriers and fire partitions: They are similar to fire walls in operation; however, their height is limited to a single floor, from the slab of one floor to the underside of the next. [4] Coatings, e.g. to fireproof wood. [5] [6]