Warm Or Cold Roof Construction

In climates that remain cold for a sustained period unvented roofs can cause more harm than good.

Warm or cold roof construction.

Whether or not a hot roof is a superior setup depends heavily upon climate homeowner needs and building plans. A cold roof is best when you re initially creating a flat roof and is cheaper than a warm roof but does provide an inferior thermal performance. Cold roof construction requires that a suitable ventilated air space exists above the insulation layer within which the air is constantly mobile being replenished by fresh incoming air whilst the air resident within the void space is being expelled via a natural. A warm deck roof is where the insulation is placed on top of the rafters joists and the roof covering is then placed over the insulation.

A warm roof construction has many benefits over a traditional cold roof essentially it is a breathable roof construction which allows moisture to escape which in turn prevents damp and any associated decay problems. You create a warm roof or a cold roof simply by applying the layers of the roof in a different order. A warm roof is much more straightforward to install and provides a superior thermal performance and is therefore more costly. Namely the insulation layers.

A warm roof construction allows heat to be conserved within a property without the need for a ventilation system.