Insulating a timber deck flat roof can be done using warm deck construction method or cold roof construction method.
Warm roof insulation boards.
The insulation can be adhered mechanically fixed or loose laid.
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.
Roof and loft insulation can save you money keep your house warm and help the environment however it can also seem like a very complex subject which many different types of insulation available.
Exceptional dimensional stability and rated for extreme hail rockwool stone wool insulation roof boards have meet both the fm severe hail and the ul 2218a standard for impact resistance.
If 180mm is to be installed then 100mm board might be introduced between the rafters there has to be a minimum 25mm air gap between the insulation and the underside of the tiles or slates with an 80mm board running across the rafters.
Boards that can be considered suitable for a wide range of applications across flat roofs whether you re looking to insulate at joist level or above the roof deck in your flat roof construction.
Saint gobain insulation uk manufacture and supply glass mineral wool slabs and rolls along with rigid polyisocyanurate pir boards that can be considered suitable for a wide range of applications across pitched roofs whether you re looking to insulate at joist level or at rafter level in your pitched roof construction.
Follow the links below to learn about our roof insulation boards for each application or alternatively if you know the product you want then enter it in the search box below.
With a warm roof the usual process is to split the insulation into two layers.
It is recommended where possible to use the warm deck method of insulation where the principal layer of roof insulation is positioned above the structural deck.
We also have insulation boards suitable for more specialist roof applications for example inverted roof insulation and balcony insulation.
The boards are easy to handle and install and can help achieve excellent u values with just a single layer of insulation in the roof construction.
The recommended roof insulation for this method of warm roof construction is quinn therm qr roof insulation which are lightweight and thermally efficient rigid pir roof insulation boards.
To help you learn about the types of insulation which will be best for your home we have compiled this guide to roof and loft insulation which are a great place to start when insulating your home.
Not only do we withstand hail damage but our roof boards maintain their bond to the roof membrane lowering the likelihood of a catastrophic roof failure.
The vapour control layer is above the decking but below the insulation.