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2. Flat roof - Wikipedia

   en.wikipedia.org/wiki/Flat_roof

   Flat roof in Los Angeles. Flat roof in Warszawa Centralna railway station in Poland (1975) A flat roof is a roof which is almost level in contrast to the many types of sloped roofs. The slope of a roof is properly known as its pitch and flat roofs have up to approximately 10°. [1] Flat roofs are an ancient form mostly used in arid climates and ...

3. List of roof shapes - Wikipedia

   en.wikipedia.org/wiki/List_of_roof_shapes

   Monitor roof: A roof with a monitor; 'a raised structure running part or all of the way along the ridge of a double-pitched roof, with its own roof running parallel with the main roof.' Butterfly roof (V-roof, [ 8 ] London roof [ 9 ] ): A V-shaped roof resembling an open book.

4. 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.

5. Solar power in the United Kingdom - Wikipedia

   en.wikipedia.org/wiki/Solar_power_in_the_United...

   Solar potential. The UK's annual insolation is in the range of 750–1,100 kilowatt-hours per square metre (kWh/m 2). London receives 0.52 and 4.74 kWh/m 2 per day in December and July, respectively. [5] While the sunniest parts of the UK receive much less solar radiation than the sunniest parts of Europe, the country's insolation in the south ...

6. Loft conversions in the United Kingdom - Wikipedia

   en.wikipedia.org/wiki/Loft_conversions_in_the...

   2015 saw a surge in demand for loft conversions by homeowners in the UK as a result of the new and simplified planning regulations. There are different types of loft conversions chosen because of price, space available, aesthetic appeal, property style, the height of the roof, and the planning permission required. [1]

7. Solar thermal collector - Wikipedia

   en.wikipedia.org/wiki/Solar_thermal_collector

   Transpired solar collectors are usually wall-mounted to capture the lower sun angle in the winter heating months as well as sun reflection off the snow and achieve their optimum performance and return on investment when operating at flow rates of between 4 and 8 CFM per square foot (72 to 144 m3/h.m2) of collector area.

8. Domestic roof construction - Wikipedia

   en.wikipedia.org/wiki/Domestic_roof_construction

   Ctrs. means centers, a typical line to which carpenters layout framing. Domestic roof construction is the framing and roof covering which is found on most detached houses in cold and temperate climates. [1] Such roofs are built with mostly timber, take a number of different shapes, and are covered with a variety of materials.

9. Photovoltaics - Wikipedia

   en.wikipedia.org/wiki/Photovoltaics

   Although wholesale module prices remained flat at around $3.50 to $4.00/W in the early 2000s due to high demand in Germany and Spain afforded by generous subsidies and shortage of polysilicon, demand crashed with the abrupt ending of Spanish subsidies after the market crash of 2008, and the price dropped rapidly to $2.00/W. Manufacturers were ...