A cold flat roof insulation requires more work taking off old boards and replacing them and the roof surface.
Cold pitched roof build up.
Cold roof designing buildings wiki share your construction industry knowledge.
However cold roof insulation on an existing flat roof system is anything but simple.
The construction build up for this can be seen on our online u value calculator.
In pitched roof construction thermal insulation can be placed horizontally at ceiling level cold roof.
Warm roof insulation ensures the entire roof structure is insulated meaning a warm deck roof is more energy efficient than a cold roof.
Warm cold and inverted.
A pitched or slanted roof has a terrain of at least 15 but it is often much more.
Inclined along the line of rafters warm roof or positioned within the roof structure to form an insulated void room in roof which can result in warm and cold roof areas.
In this case we would suggest fitting kooltherm k7 pitched roof board between the rafters and kooltherm k118 insulated plasterboard to the inside face of the rafters.
The breakdown warm roof vs cold roof.
A cold roof is roof in which the thermal insulation layer is located between the ceiling joists meaning that everything above the insulation such as the rafters and any roof space will be colder than the living space below it.
There are three recognised designs of flat roof construction.
Cold roof insulation is most commonly used when a flat roof is first being created because it s a relatively easy process.
Cold pitched roof.
Usually this construction is a ventilated roof which will have sarking felt.
Warm roof in a warm roof construction the principal thermal insulation layer is located above the structural decking resulting in the structural deck and support structure being at a temperature close to that of the interior of the building.
Cold roof voids are typically required to be ventilated.