Warm Deck Flat Roof Design

On flat roofs a warm roof is one in which the insulation layer is laid on top of roof structure.

Warm deck flat roof design.

There are three recognised designs of flat roof construction. The warm deck roof design is the modern method for flat roof construction and is preferred wherever this option is possible. Warm deck flat roof design this warm deck flat roof design graphic has 20 dominated colors which include fennel flower thamar black wasurenagusa blue light blue mist black cat driftwood pig iron burnt grape weathered leather streusel cake mid tan tin guilliman blue bazaar snowflake dusky black yellow rumped warbler white ivory. The insulation is placed below the waterproof covering and is either mechanically fixed or bitumen bonded on to the top of the deck.

Throughout the course of the year the roof deck and all below it is kept at a temperature close to that of the inside of the building therefore the roof structure is protected from extremes of hot and cold lessening the potential for damage caused by thermal movement. The sandwich warm deck roof is the most common type of flat roof. The design of the roof either warm or cold must be precise. This is as opposed to a cold roof in which the insulation is below or within the roof structure and so the roof structure is closer to the outside temperature.

Condensation forms as warm air in insulated voids hits cooler surfaces underside of roof decking and can rot the roof from the inside out. Inverted warm deck roof the insulation boards in an inverted warm deck are laid over the structural deck and the waterproof covering. Warm cold and inverted. This results in the structural deck and its supports being at a temperature closer to that of the building s interior.

In the case of a flat roof insulation is usually either a rigid board above the deck or a mineral glass wool quilt immediately above the underdrawn ceiling depending on the type of roof design and construction. The main principle for a warm roof design is that the insulating layer is located above the timber rafters or above and between the structural supports resulting in the roof and loft area being at a similar temperature to the interior of the building. So called because the insulating layer is located above the roof rafters and between the structural supports a warm deck roof results in a temperature for the roof and loft area that is consistent with the rest of the property. Warm deck flat roof by moving the insulation to the outside of the structure the roof deck is effectively brought inside which results in a warm deck hence the name this removes the the possibility of condensation forming on the underside of the deck and eliminates damp.

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.