Flat roofs are constructed basically with joists spanning the gap between two walls, covered by sheet timber or other material. In the case of timber a further, waterproof cover is required. The weight of these last two coverings, together with the span, form the basis of the calculation for the size of joists required. A further part of this equation is discovered in Approved document A of the Building Regulations (Structure) where the possible snow loadings, depending on area of the country and height above the ordinance datum, are taken into consideration. It is therefore important, before building your structure that you have the desired building regulation approval. There are 8 “maximum span” tables in the regulations, which deal with the loading and span of the roof together with any slight pitch over 10 degrees that it may have to dispose of rainwater.
Roofs can be either tiled or slated roofing. However, these two alternatives encompass many different choices with tiles being divided and subdivided into clay or concrete, plain or profiled and slates being divided into stone, metamorphic and man made. An increasing volume of black slate from Spain has been finding its way into historical projects as a substitute for increasingly scarce and expensive black and gray-black slates from traditional domestic slate regions.
The most recognised and sought after commercial roofing services include: Reroofs or Repairs to Flat & Pitched Roofs and Vertical Cladding, Slate and Tile (ridged or hip) Roofing Systems & Repairs, Installation of Asphalt or Bargeboards, Felt Linings and Resurfacing, Waterproofing, Gutter, Fascia, Soffit Board and Chimney Repairs, Gutter Cleaning, Roof Windows or Roof Lighting, Environmentally friendly and VAT-reduced Roof Insulation.
There are many types of roofing: commercial roofing, flat roofs, built up roof, metal roof, modified bitumen, standing seam, and asphalt roof solutions- along with many more. With your purchase, you are committing yourself to one or another repair strategies, each with its own risks and benefits.
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