Construction Loads

Construction loads on a building include the wind load on a partially clad or braced roof or building. Depending on the method and sequence of construction, it can be greater than the load on a completed building. Construction loads also include temporary localised loads from material storage, scaffolding, and tradespeople.

Other forces contributing to construction load include:

• The intensity of internal wind pressures due to a temporary absence of ceilings, walls and glazing.
• Storage of roof cladding on the structure. Bundles of roof cladding should be placed so they do not cause overstress in purlins.
• Any scaffolding above an existing roof must be designed to avoid damage to the roof structure or coatings, and be designed or sequenced to avoid wet storage corrosion. It is far better practice to stage jobs so that lower roofs are not used as a working platform for work on higher levels

Typical Rib Damage Due to Point Load