Ideally, the delivery of roof trusses must be arranged as close to the installation date as possible, to minimise storage onsite. However, if longer periods of time are required, the necessary steps must take place.
Site storage of roof trusses
Roof trusses, also known as trussed rafters, must be stored safely to minimise injury onsite. Trusses can be stored vertically or horizontally at ground level, or, alternatively, on a secure storage platform above ground level. In either case, the roof trusses must not make direct contact with the ground or any vegetation.
Additionally, they must be arranged to avoid distortion and restrained securely to avoid collapse. Trusses should also be protected with covers and fixed to allow proper ventilation.
Storing roof trusses vertically
If you choose to store roof trusses vertically, bearers should be positioned to provide a firm and safe support with suitable props.
Storing roof trusses horizontally
If chosen to store horizontally, level bearers should be positioned between each truss node to prevent any distortion.
Please note, no other method of storing roof trusses is considered to be suitable, with the exception of where specific provision has been made in the design for an alternative temporary load case.
For further information please see page 13 of the TRA’s Buyer’s Guide to Trussed Rafters.