It is recommended that the minimum fall for a flat roof is 1 in 80 which will allow water to drain easily.
Warm roof construction kingspan.
Kingspan offers a range of insulation solutions for flat and pitched roofs.
Others would treat even steeper pitches as flat roofs.
Kingspan is a market leading manufacturer of premium and high performance rigid insulation products and insulated systems for building fabric and building services applications.
Kingspan kooltherm k7 pitched roof board is a premium performance pitched roof insulation that provides a thermal conductivity between 0 020 w mk and 0 023 w mk.
Insulated from the outside of the building.
We stock a wide variety of their products for both flat roofing and pitched roofing applications including their optim r kooltherm therma and kingspan greenguard insulation boards.
Kingspan kooltherm k7 a premium performance phenolic insulation and thermapitch tp10 a high performance pir insulation are both fibre free rigid thermoset insulation which can be used to insulate warm roof spaces in ventilated or unventilated pitched roofs under tiles or slates.
A warm roof is recognized as being the most suited form of roofing to the uk climate providing both a cost and thermal efficient solution.
A warm roof for low slope roofs is a roof where the roof insulation is installed on top of the structure i e.
One if the benefits of a thermally efficient warm roof is the transfer of a building s dew point to the outside.
When building a flat roof it is vital that a degree of falls is built into the construction to ensure rainwater run off.
The definition of a flat roof according to bs 6229 is having a pitch less than 10 o to the horizontal however some in the industry would consider up to 15 o as their definition of a flat roof.
Again the roofs can be of a warm or cold construction.