Flat Roof Vent Detail

It s unavoidable that the thermal temperature in the roof space will bear the brunt of the heat generated in the living spaces below.

Flat roof vent detail.

Flat roof ventilation should be accomplished when you have equal amounts of air exhaust with air intake. A cold roof or hot roof. Although flat roofs are cheaper to build than pitched roofs they have a shorter life span. Having both will enable the cavity to breathe with cross ventilation.

What typical detailing methods are used to seal flat roof penetrations. Typical methods include banding pitch pockets and cover flashings. A roof is considered to be flat when it is of a slope of 1 5 o to the horizontal. Roof vents need to be built tall for flat roofs because flat roofs drain water poorly and slowly compared to steep sloped roofs.

Any type of roof from tpo to epdm can be either hot or cold. Hot roofs have the roof deck then insulation then the roofing material. How much ventilation does a flat roof need. It depends on where the insulation is installed.

Alwitra flat roof details. Flat roof construction for residential. The answer depends on the type of roof you have.