There are two main types of flat roof that require different approaches to.
External flat roof insulation.
Warm flat roof insulation.
In most cases there will not be a loft in a building that features flat roofing.
This may help with condensation but causes such a loss of heat that it has been banned in scotland.
As a rule any roof with a pitch below 10 is classified as a flat roof.
The one you finally choose depends on several factors such as the arrangement of the layers of particular materials the way the roof slope is used and the type of roof.
This means there is a vapour control layer in the ceiling and cross ventilation at the eaves or the top of the walls.
When installing a flat roof it is important to ensure you have suitable flat roof insulation to minimise any heat loss and improve noise insulation and is an essential part of the roof structure without appropriate flat roof insulation the extension or building will not pass building regulations.
To produce a cold roof the insulation has to be fitted inside below the weatherproofing support beams brickwork etc with a ventilated air gap.
Lots of traditional flat roofs are of the cold roof construction type.
Flat expanded polystryene eps roof insulation is suitable for use with all roofing membrane materials flat eps roof insulation is compatible with loose laid and attached single ply membranes conventional built up roofing or modified bitumen systems.
Insulation ratings are measured in r values per inch of thickness.
An r value tells you how well a type of insulation can keep heat from leaving or entering your home.
Flat roof insulation what does it depend on.
Flat expanded polystryene eps roof insulation provides high long term r value of eps and labor saving face laminates.
External wall insulation the external walls of a building are an important part of a building s overall design and since there are a variety of different ways to construct an external wall with a range of building materials it should come as no surprise that there are many different ways to insulate them.
The basic decision to make when it comes to thermal insulation of a flat roof is the material.
Go for a hot roof or external insulation.
This means that your approach to insulation will differ from a standard pitched roof.
Cold roof systems are highly inadvisable as insulation from the inside will.
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 flat roofs whether you re looking to insulate at joist level or above the roof deck in your flat roof construction.
Cold flat roof insulation.
Cold roof hot roof what exactly do these terms mean.
The in situ application overcomes problem areas such as cracked roofing sheets and glazing perished fixing bolt seals and gaps in the sheeting.
