Each putlog has one flat end that rests on the bed or perpendicular joints in the brick or blockwork. Standards and ledgers are tied to the putlogs. The scaffolding uses the external wall as part of the support system. Putlog scaffolds are erected as the external wall is constructed. Safety signs, lights and hazard warning Scaffold types Warning signs should be used to prevent access by unauthorised persons and signage should be positioned at access points. While the scaffolding is being erected it will be necessary to use a physical barrier to protect the area.
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If the materials are to be manoeuvred on the scaffold, a distance of 600mm clear pedestrian passage must be maintained at all times. When materials are loaded onto the platform, the clear passage for workers should be at least 430mm. Scaffolding boards are butted together to make a working platform the minimum working platform depth is three boards. Each board must overhang the ledger by 50mm, but the overhang must not exceed four times the thickness of each scaffolding board. Lightweight metal scaffold boards are used in some systems. Greater spans can be achieved by using thicker boards the distances between transoms on which the scaffolding boards span must not exceed the maximum span allowed for each board.Įach board must be closely butted together so that there is no chance of the board slipping off the supporting tubes. Other common components are scaffold boards and edge protection.Ī standard scaffold board is 225mm wide by 38mm thick with a maximum span of 1.5m. Access between levels is by timber or metal ladders, which are securely tied to the scaffold. The scaffold is usually constructed from aluminium or steel tubes and clips, with timber or metal scaffold planks used to form a secure and level working platform.
![transom scaffold meaning transom scaffold meaning](https://jrrnrwxhqnmq5m.leadongcdn.com/cloud/jjBonKnpSRqpkqmkk/photo1.jpeg)
Scaffolding and temporary works should always be checked before use following extreme weather conditions,e.g. Subsequently the structure must be checked on a regular basis to ensure it remains safe throughout its use. The inspection must be recorded in the site log. Scaffolding structures that need to be designedĪ competent person must inspect the whole of the scaffolding and associated temporary supports, including the tying in and sections that are welded, bolted and fabricated off site, prior to use.