Roof Wind Load Formula

When building a structure it is important to calculate wind load to ensure that the structure can withstand high winds especially if the building is located in an area known for inclement weather.

Roof wind load formula.

This formula takes a few more parameters into account for wind load. It provides the wind load calculations on uplift leeward windward and roof forces of a building. Q velocity pressure in psf given by the formula. G gust effect factor.

P q h g cn 30 8 1 where. G 0 85 as gust effect factor. The design wind load shall be calculated as. 2 4 wind load on open building and other structures.

G c p i internal pressure coefficient. Once the wind speed has been calculated the user can provide additional information regarding the building such as building height type and cladding to get the wind pressure wind load based on asce 7 10 as 1170 and en 1991 provisions. C p external pressure coefficient. Http goo gl mrgajl for more free video tutorials covering structural design loading this video elaborates the calculation of wind pressure acting on roof.

Q h velocity pressure at mean roof height h using the exposure defined in section 26 7 3. C n is net pressure coefficients include from top and bottom surfaces given in.