A vapour control layer must be used below the insulation.
Flat roof insulation london.
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The current target u value for new or replacement flat roofs should be 0 18w m k.
All of our work comes with a minimum of a 10 year insurance backed guarantee.
London flat roofing investigated a leak caused by two old joined leaking roofs of different materials plastic and blog kemperol videos what can happen if you don t get the vapour barrier in the correct place.
This is where the insulation is typically packed between the rafters.
Insulation is placed in between the joists underneath the roof surface above.
Building control approves 2 of celotex insulation on flat roof.
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The current building regulations with respect to u values for flat roof insulation was updated in 2010 following on from the 2006 implemented changes to building regulations approved document l conservation of fuel and power.
This option avoids the requirement to ventilate the roof.
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154c fleet road hampstead london nw3 2qx office 0800 246 5049 emergency 07802 300 099.
London flat roofing are one of the leading experts in the fields of both warm roof and flat roof construction.
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The right roof insulation can have a major impact on your property.
Both these variants require different approaches to insulation which will be covered in this guide.
We undertake both commercial and residential flat roofing works as well as insurance work.
A 50mm air gap must be left.
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Flat roof insulation fixings thermally broken fixings are the way to go in this post i explain some of the different methods.
This approach uses insulation with no air gap either immediately above or below the roof deck.