Warm Flat Roof Construction Kingspan

By majority the rule of thumb is that in a domestic house not flats approximately a third of the total thermal performance of insulation can be placed below the deck with two thirds above.

Warm flat roof construction kingspan.

Kingspan thermaroof tr27 is a high performance insulation with a fibre free rigid thermoset polyisocyanurate pir core. On metal roof decks or firrings. A warm flat roof or a built up roof bur is one where all the insulation is above the joists deck making them part of the warm fabric of the building. The vapour control layer is above the decking but below the insulation.

Flat roofs often use tapered insulation on a completely flat deck or have a fall built into the deck in the concrete via a screed to. The insulation can be adhered mechanically fixed or loose laid. New flat roofs on new roofs a kingspanthermataper zero odp systemseliminate the need to incorporate a fall into the design of the structure which can require complex structural supports e g. Kingspan offers a range of insulation solutions for flat and pitched roofs.

The insulation is immediately below the waterproofing layer. A warm roof is defined as being when the all or the majority of the insulation is above the joists or deck. Flat roofs can be completely flat and have a pitch of 0 degrees although due to issues with water drainage this is not a common method of construction. Warm deck flat roofs can be constructed on most modern construction material types such as concrete timber and timber based sheets.

With a thermal conductivities as low as 0 024 w mk it is used to insulate flat roofs waterproofed with fully adhered single ply partially bonded built up felt mastic asphalt and cold liquid applied waterproofing. The roof itself is therefore kept warm.