Category Archives: Blog

ASCE 7-16

Wondering when the next ASCE 7 will be coming out? The answer is March 2015. This should be plenty of time for everyone to prepare their projects for 2016. There are some additions to the ASCE 7, such as Tsunami Loads, and refined seismic Loads. The full list is below: Asce 7-16 Subcommittee On Dead […]

Australian and New Zealand Standards

Reference: “The likelihood of increasing frequencies of cyclones and other extreme weather events due to a changing climate has resulted in a review of Australian and New Zealand standards relating to wind load design requirements for doors and windows. “As far as garage doors are concerned, the updated Standard AS/NZS 4505:2012 Garage doors and […]


¬†ASCE 7-10 revised load factors for wind in allowable stress design (ASD) and load and resistance factor design (LRFD) load combinations. Design velocity pressure for ASD and LRFD are: ASD: qz10_ASD = (0.6)(qz10) (Eq. 5) LRFD: qz10_LRFD = (1.0)(qz10) (Eq.6) where: 0.6 = ASCE 7-10 ASD load factor for wind 1.0 = ASCE 7-10 LRFD […]

IBC 2015 Wind Load – Key Changes

An AAMA proposal (S173) clarifying that allowable stress design wind loads are to be used in the application of AAMA/WDMA/CSA 101/I.S.2/A440, DASMA 108 and ASTM E330. An AAMA proposal (S295) that brings the 0.6 adjustment factor needed to go from ultimate design wind pressure to allowable stress wind pressure into Chapter 24 of the 2015 […]

Wind Load Definitions

ASCE7 is the basis for wind load calculation used in most building codes. International Building Code Model building code developed by the International Code Council. Most of the U.S. has adopted this building code (sometimes with slight, locally adopted variations). The wind load provisions in this code specifically call out ASCE7 to be used in […]

How to Calculate Wind Load

High velocity winds are very destructive. The speed of the wind, better known as “wind velocity” acts as pressure when it comes into contact with any structure. The intensity the wind’s pressure is known as the “wind load”. Calculating a wind load is necessary for the design and construction of more safe, and more wind-resistant […]