Roof ridges and ridge tiles roof hips and hip tiles roof valleys roof verges and lead flashings.
Warm roof construction uk.
No ventilation is required for these types.
Covers flat roof materials and flat.
This means that the timber structure beneath is warm which is why the term warm roof is formed.
This is where the insulation is typically packed between the rafters.
The vapour control layer is above the decking but below the insulation.
Covers pitched roof materials basic pitched roof designs cold and warm pitched roofs and pitched roof construction.
A warm flat roof is formed by placing a layer of insulation over the top of the roof structure.
Part 3 pitched roof detail.
A vapour control layer must be used below the insulation.
There are however some technical challenges to consider when installing and fixing a warm roof.
Basically a warm roof construction is formed by placing insulation over the top of the roof structure.
Warm deck roof a warm deck roof is where the insulation is placed on top of the rafters joists and the roof covering is then placed over the insulation.
Warm roof built up roof 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.
A tiled conservatory roof gives insulation 6 times more than the best glass roofs making a conservatory into a living space that can be used all year around.
Flat roof constructions are generally classed as either cold or warm roofs depending on the position of the thermal insulation.
This approach uses insulation with no air gap either immediately above or below the roof deck.
This results in the structural deck and its supports being at a temperature closer to that of the building s interior.
Part 4 flat roof construction.
A warm roof construction allows heat to be conserved within a property without the need for a ventilation system.
This option avoids the requirement to ventilate the roof.
Warm roof on flat roofs a warm roof is one in which the insulation layer is laid on top of roof structure.
Due to the insulation being over the top of the roof the timber structure beneath is warm which is why the term warm roof is formed.
The insulation is immediately below the waterproofing layer.
The cold roof although not recommended today and actually banned in scotland until recently cold flat roofs were fairly common.
Steve from london flat roofingexplains how warm flat roof construction works in this excellent short video.
A warm roof is thermally efficient and cost effective and is commonly accepted as the best roof option for our climate within the uk.
A 50mm air gap must be left.