£605.00 – £1,635.00Price range: £605.00 through £1,635.00
TG20 provides the definitive guidance for scaffolding constructed with tube and fittings throughout the UK. TG20:21 builds on TG20:13, and makes the eGuide software, Design Guide and Operational Guide available via the new NASC ePortal, on a subscription basis.
The eGuide produces pdf compliance sheets, which now include more information and an illustration. The guides are fully searchable online.
The ePortal is available here from computers, tablets and smart phones via web browsers. Each subscription gives access from multiple machines, but only one machine at a time.
Purchase and use of a subscription implies acceptance of the subscription agreement, found here, by all users.
The price shown excludes VAT at 20%.
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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
Scaffold board nailplates are specially stamped toothed strips of galvanised steel that can be applied to new or used boards to prevent or to repair existing end splits. Experience gained over many years by the scaffold industry indicates that the service life of a board can be substantially extended if nailplates are fitted. This revised and updated version contains additional information and guidance on the specification and fitting of nailplates.
2 pages
The TG20 Operational Guide contains detailed practical guidance for most common types of scaffolding, supported by structural research and calculation. Guidance is provided for a range of standard structures which includes independent scaffolding, interior birdcages, chimney stack scaffolds, loading bays, ladder-access towers, free-standing towers, lift shaft towers, putlog scaffolding, exterior birdcages, tube and fitting mobile towers, tube and fitting loading bays without beams, and tied independent scaffolds with three inside boards. NASC members can purchase 10 or more copies of the TG20:21 Operational Guide book at the discounted rate of £25 per unit. To do so, please email sales@nasc.org.uk
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.
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