A typical single ply membrane flat roof system can be expected to achieve a service life of at least 30 years. Care should be taken to distinguish between the durability of the single ply membrane by itself, and the expected service life of the flat roof system incorporating the membrane. As the components are exposedRead more
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The number and location of rainwater drainage outlets for a flat roof system is calculated using BS EN 12056-3. The calculation takes into account rainfall intensity, the roof form, and the use of the building. Outlets can be external downpipes served by gutters, or internal downpipes. National building regulations also set out requirements for roofRead more
The thermal transmittance, or U-value, of the complete roof system is calculated in accordance with established international standards. For the majority of flat roofs – built up in a series of material layers, each of a consistent thickness and performance – the most appropriate calculation type is the ‘combined method’ detailed in BS EN ISORead more
IKO is sponsoring Kieran Smith, son of Rob Smith who works at the Clay Cross Pre-fabrication Department. Kieran is a young cyclist making a name for himself on a National level. He first started training as a tri-athlete just before his 9th birthday. In less than a year’s time, as a junior athlete, he wasRead more
The number of fixings required to secure a flat roof build-up varies by project. Fixings secure the flat roofing system against wind uplift, and the more a roof is exposed to wind, the greater the number of fixings required. Wind uplift calculations, carried out in accordance with EN 1991-1-4, determine the number of fixings required.Read more
The most suitable flat roofing system specification is different for every project, and depends on a range of factors. The building size and use, any site constraints, available budget, speed of construction, and whether the roof will be subject to foot traffic, all influence the choice of structural deck, thermal insulation and flat roof waterproofing.Read more
