Warm roof by horsford of norwich.
Warm flat roof installers.
It should also be noted that a warm roof adds height to a flat roof and so cannot be used on balconies and extensions with doors that lead onto the roof.
In the warm flat roof construction there is insulation packed into every possible space where air can flow.
A flat roof must be strong durable and stable throughout its lifetime.
The best thing you can do to ensure the finished flat roof will last as long as possible is to make sure any rainwater discharges off the roof and into the outlets or gutters without pooling on the surface.
It must provide adequate protection against the elements keeping the buildings structure and interior dry.
For guidance on roof insulation please contact us on 44 01257 488 000.
This approach uses insulation with no air gap either immediately above or below the roof deck.
The exact material you use will have an impact on the cost of the roof with basic felt solutions costing around 50 per square metre for the material itself and more high end materials such as modern grp a form of fibreglass going up to 90 per square metre but allowing unlimited options in terms of colour and generally being more long lasting.
A 50mm air gap must be left.
Flat roof replacement costs.
A vapour control layer must be used below the insulation.
A warm roof is much more straightforward to install and provides a superior thermal performance and is therefore more costly.
Flat roof types.
This option avoids the requirement to ventilate the roof.
If you have been considering a new roof installation looking into adding insulation to your home or are planning to build a new house you may have heard people talk about hot roof and cold roof systems.
This is where the insulation is typically packed between the rafters.
However you may not be familiar with these concepts particularly what they mean and the pros and cons of each.
Flat roofs are not supposed to be built perfectly flat as bizarre as that may sound.
The major difference between the warm flat roof and the cold flat roof has to do with the air flow between the roofing timbers known as joists that help to hold up the roof.
A roof is defined in bs 6229 as a flat roof if it has a pitch of 10 degrees or less.