Warm Roof Explained

The roofs can fail if the roof assembly is not properly installed or insulated or if the outside air is unable to absorb moisture faster than it is accumulated.

Warm roof explained.

A cold flat roof insulation requires more work taking off old boards and replacing them and the roof surface. The breakdown warm roof vs cold roof. Warm flat roof construction explained. In a warm roof the insulation is laid on top of a moisture or vapour barrier directly onto the flat roof deck which means that the insulation is continuous.

Warm roofs will have a thermal insulation layer above the structure with no cold areas for the warm air to condense. Flat roof construction explained. I link to two other videos one on cold flat roof construction and one that s an in depth comparison. The advantage of this is that thermal bridging is minimised and the labour cost is reduced as all the construction and assembly of the roof is carried out from the top of the extension.

In a cold roof the insulation is applied between the rafters but in a warm roof the insulation is applied on top of the existing roof surface. Namely the insulation layers. Therefore theres no need for vents in this type of construction. These roofs keep your home cooler during the hot summer months.

With a warm roof the insulation is installed on top of the existing surface rather than in between the rafters. The great thing about a warm roof is that if your. Warm roof insulation ensures the entire roof structure is insulated meaning a warm deck roof is more energy efficient than a cold roof. In building construction roof pitch is a numerical measure of the steepness of a roof.

My advice for your flat roof is a grp fiberglass system with a 100mm insulation warm roof. Warm roofs offer a superior thermal performance and therefore come with a higher cost. These roofs do allow a bit of heat to escape from your home through the roof in the winter months. This video shows detailed drawings on how a warm flat roof is constructed.

What is a warm roof or a cold roof. A warm roof building will make the entire structure of the building warm in an attempt to avoid any cold bridging. There are typically two different ways to insulate a roof a warm roof and a cold roof. Hopefully this video will help explain the difference between a warm flat roof construction and a cold flat roof construction.