Various Kinds of Flat Roof Systems and Their Insulation Methods

A house's roof

One of the most common roof designs currently is the flat roof, in Utah especially. These are roofs with a pitch of at most 10 degrees to the horizontal. The most common problem associated with flat roofs is the significant loss of heat.

Insulating your flat roof is the primary way to deal with this problem. Your state building regulations will determine your roof insulation. Ensure you are conversant with the relevant rules before settling on your insulation option. Here are the main categories of flat roofs depending on the location of their insulation.

Warm Roofs

A warm flat roof has its insulation situated above your roof deck. The layer charged with vapor control is below your insulation. With warm roofs, your roof deck shares the interior temperature of your building. These roofs make it easier to eradicate cold bridging and allow escape of moisture. This prevents your roof from being damp and decaying. Warm roofs might, however, be slightly harder to install compared with cool roofs.

Cold Roofs

With cool roofs, the insulation layer is below your roof deck. This leaves the timber and roof uninsulated. It is cost-effective and easy to this build roofing system. It simply requires placing an insulation between your roof rafters. It, however, needs a sufficient ventilation system to prevent a buildup of vapor, which can lead to dampness and decay of your roof.

Inverted Flat Roofs

These roofs have their waterproofing layer beneath the insulation layer. The roof deck, support structure, and waterproofing share your building’s interior temperature. Inverted flat roofs need no vapor control layer. The primary benefit of inverted roofs is the protection of the waterproofing membrane.

There are many benefits you stand to reap from insulating your flat roof. You get warm rooms during winter and cold rooms during summer. Flat roof insulation also reduces your energy bills and carbon emissions.