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When it comes to a flat roof, one of the most important considerations is which type of insulation to use – and this is just as true for roof refurbishment projects as it is for new roof installations.  The main purpose of insulation is to maintain a comfortable temperature within the building envelope and this is measured through the thermal conductivity (lambda value) of the material used.  The lower the lambda value of the insulation material, the more difficult it is for heat to pass through.  Thermal performance will be enhanced and a reduced thickness can be used to achieve the desire

A couple of weeks ago we brought you some information on the pros and cons of metal roofing.  Metal roofing materials vary widely and it is considered a strong and durable option, especially on flat roofs.  A metal roof will typically last between 30 and 50 years, is fireproof and has great insulation properties which is why the use of metal is on the increase here in the UK.  However, just because metal is strong and durable, this doesn’t mean that it is always safe to walk on a metal roof.  With so many commercial prem