First off the warm flat roof design is an extremely basic direct and utilitarian design every single current trademark.
Warm flat roof design.
A roof design gives the chance to extra floor space in the roof volume similar to a space or upper room space.
This can be accomplished either because of the local climate or as a result of design principally through the use of rigid insulation installed above the roof deck or air impermeable spray foam insulation installed under the roof deck in direct contact with it.
There are two forms of warm deck roof.
The following outlines ways to build protect and reinforce your roof.
There are several methods and materials for the design of the exterior surface of a warm or cold flat roof.
Condensation forms as warm air in insulated voids hits cooler surfaces underside of roof decking and can rot the roof from the inside out.
Main features warm flat roof design.
The warm flat roof design can go up against different style that when nitty gritty right can ooze a cutting edge feel.
The key is to keep the roof deck the principle condensing surface in roof assemblies sufficiently warm throughout the year.
Specifiers have traditionally chosen between two distinct types of flat roof construction.
But as daniel bosworth design technical manager at sig design technology explains they should be approached with caution.
The design of the roof either warm or cold must be precise.
Types of warm deck roof.
Hot tar and gravel also known as the built up roof bur this type of flat roof features three or more layers of waterproof material mixed in an alternating fashion with hot tar and a layer of smooth stone like gravel.
Typical details for a warm flat roof u k.
Here is a diagram of a typical warm roof.
Designed specified and constructed correctly a warm roof will keep the roof structure at the same temperature as the building s interior eliminating the possibility of condensation occurring and ensuring the roof performs for the life of the building.
Regardless of your flat roof design take time to thoroughly check the surface for flaws.
Inverted warm deck roof.
There is a wide variety of flat roof materials available each with its own advantages and drawbacks.
The sandwich warm deck roof is the most common type of flat roof.
The insulation is placed below the waterproof covering and is either mechanically fixed or bitumen bonded on to the top of the deck.
Combining elements of both cold and warm flat roof design hybrid roofs appear to offer the best of both worlds when it comes to maximising thermal performance while limiting constructional depth.
Flat roofs are among the simplest construction elements that can feature in a building.
If a warm roof is not fully packed with insulation yet a constant air flow is not achieved condensation will form in any unvented void.
Zero ventilation space is required and the construction appears stacked and compact.
To use epdm for a warm deck flat roof construction solid closed cell roof insulation such as kingspan or celotex should be placed on top of the roof deck rather than in between the rafters.
A warm roof features a structural deck vapour control layer insulation and waterproofing a tried and tested solution that the industry knows works.