Wind Zones For Flat Roof

For zone f.

Wind zones for flat roof.

The significance of these changes is the increase in pressures that must be resisted by roof construction elements subject to component and cladding wind loads including but not limited to roof framing and connections sheathing. Duo pitch roof wind load zones. Examples of asce 7 16 roof wind pressure zones for flat gable and hip roofs. Mono pitch roof wind load zones.

Has the lowest load. It should be ensured that the roof deck substrate is sound and suitable to take the fixing load if there are any doubts or the project is a refurbishment then a fixing pull out test must be performed to determine the. Interior zones zone 1 have the lowest load and account for about 80 of the roof surface. The roof zone describes the amount of wind load that is subjected to the roof.

For the different pressure zones on the flat roof the following net pressures are obtained. Here they are with their pros and cons. While asphalt shingles remain the most common roofing material even in high wind zones there are others worth considering. These zones are defined as follows.

W net g 1 231 kn m 2 zone g extends between zones f. Per asce 7 10 buildings are composed of 5 different zones depending on the wind loading they are subjected to. W net f 1 758 kn m 2 zones f start at both frontal corners of the roof and extend for length e 10 1 000 m and width e 4 2 500 m for zone g. End zones zone 2 have a higher load than zone 1.

They represent the perimeter of the roof and account for approximately 15 of the roof surface. This zone accounts for approximately 80 of the roof surface represented in the interior zones of the roof. See roof costs in your area. Barrel vault roof wind load zones.