£5.15
The effects of heat on scaffolding equipment can have a significant and permanent effect on its strength and performance. This guidance explains the potential issues and the action to be taken if equipment has been subjected to a fire or similar conditions. This guidance is available for pdf download only.
Traditionally, flame retardant timber decking has long been a fundamental requirement for scaffolding in various sectors of the industry. However, in the light of the ‘Grenfell’ disaster, there has been a substantial increase in the number of contracts which specify the need for flame retardant scaffold boards. This document gives details of various fire retardant treatments available, the recommended specification and guidance for care and storage. This guidance is available for pdf download only. 2 pages.
Aluminium tubes, prefabricated beams and other components are widely used throughout the scaffolding industry. Whilst aluminium is not as stiff as steel and will deflect more when subjected to equivalent loads, it is much lighter and provides great advantages with regard to manual handling or the reduction weight. As aluminium couplers are not readily available, aluminium tube and beams are invariably connected with steel couplers and joint pins. Unfortunately, when two dissimilar metals such as aluminium and steel are in contact, a phenomenon known as ‘galvanic corrosion’ can occur where the corrosion of one of the metals, in this case aluminium, can be greatly accelerated. In severe cases this could seriously affect the integrity of the scaffold structure.
TG4:19 had amendments predominantly in relation to the orientation of ring bolts where current thinking is that settlement is probably greater than side wind loads so reduces potential shear loads on the bolt. Other minor changes were cosmetic. A recent update in April 2019 saw the removal of one reference only when the guidance was reissued as TG4:19. 24 pages
The TG20 Design Guide provides technical data, commentary, and source material for use by competent and suitably qualified scaffold designers in circumstances which are outside the scope of standard solutions provided in the TG20 Operational Guide and TG20 e-Guide software. NASC members can purchase 10 or more copies of the TG20:21 Design Guide book at the discounted rate of £25 per unit. To do so, please email sales@nasc.org.uk
This guide is intended to aid those who commission scaffold designs by summarising the responsibilities of each party involved at each stage of the process. It also details the requirements for preparing a design brief with information required by the Designer to enable a suitable and sufficient design to be produced, as well as outlining the design process, checking requirements and expected output information. This document is complimented by CG6: Scaffold Design. 6 pages.
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