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2. List of commercially available roofing materials - Wikipedia

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

   Roofing material is the outermost layer on the roof of a building, sometimes self-supporting, but generally supported by an underlying structure. A building's roofing material provides shelter from the natural elements. The outer layer of a roof shows great variation dependent upon availability of material, and the nature of the supporting ...

3. Flat roof - Wikipedia

   en.wikipedia.org/wiki/Flat_roof

   A flat roof is the most cost-efficient roof shape as all room space can be used fully (below and above the roof). Having a smaller surface area, flat roofs require less material and are usually stronger than pitched roofs. [26] This style roof also provides ample space for solar panels or outdoor recreational use such as roof gardens.

4. Bituminous waterproofing - Wikipedia

   en.wikipedia.org/wiki/Bituminous_waterproofing

   About 1913, Paraffine promoted its Malthoid roofing materials with a 16-page booklet. [15] In 1941, the Duroid Company began making Malthoid in Onehunga, New Zealand. [16] Malthoid was once common enough to be used as a generic description of flat roofing material in New Zealand and South Africa (item 26).

5. List of roof shapes - Wikipedia

   en.wikipedia.org/wiki/List_of_roof_shapes

   Satari: A Swedish variant on the monitor roof; a double hip roof with a short vertical wall usually with small windows, popular from the 17th century on formal buildings. [citation needed] (Säteritak in Swedish.) Mansard (French roof): A roof with the pitch divided into a shallow slope above a steeper slope. The steep slope may be curved.

6. Roof coating - Wikipedia

   en.wikipedia.org/wiki/Roof_coating

   Most flat roofs are not perfectly sloped, causing water to puddle in some areas, in particular around the drains and scuppers.Many roof coatings are not rated or warranted for "ponding water", and thus might fail pre-maturely if exposed to standing water over long periods of time.

7. Membrane roofing - Wikipedia

   en.wikipedia.org/wiki/Membrane_roofing

   Membrane roofing is a type of roofing system for buildings, RV's, Ponds and in some cases tanks. It is used to create a watertight covering to protect the interior of a building. Membrane roofs are most commonly made from synthetic rubber, thermoplastic (PVC or similar material), or modified bitumen. Membrane roofs are most commonly used in ...