Perimeter containment screens or a scaffold are

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Perimeter containment screens or a scaffold are effective means of edge protection on a completedformwork deck. Scaffolding should be erected before the formwork and prevents workers falling off thecompleted deck. The main advantage of these systems is people are not required to install edgeprotection on the perimeter of the formwork deck and are therefore not exposed to a risk of falling.The other advantage is edge protection for people installing the final perimeter formply sheets isalready in place.Where suspended, cantilevered, spur or hung scaffold, or any scaffold from which a person or objectcould fall more than 4 metres from the platform or the structure is used, any erection, alteration ordismantling of the scaffold must be carried out by licensed scaffolders. Cover gaps between a completedfloor and scaffold after the formwork is stripped if there is a risk of a person or materials falling through thegap.For further information see theGeneral guide for scaffolds and scaffolding work.In some situations it may be impractical to provide perimeter containment screens or scaffolding.Use a work system to install perimeter edge protection on the deck which eliminates or minimisesthe risk of a fall.Harness systems should not be used because they do not provide a practical control for the risk ofa fall from height from the perimeter of formwork.Guide to formworkJuly 2014Page 9 of 13
If required, edge protection can be substituted with an alternative measure provided this measureprevents a person falling from the edge. One alternative is providing a barricade 1.8 metres back fromthe edge with clearly visible warning signs.Perimeter containment screensPerimeter containment screens are protective structures fixed to the perimeter structure or workingplatform to prevent objects and people falling outside the work area. This significantly minimises the riskof injury to other workers and the public.Screens should be used throughout the whole construction process especially while erecting or strippingformwork. They are usually sheeted with timber, plywood, metal or synthetic mesh.Screens may be supported by the building or structure or by a specifically designed scaffold. The screenscan also act as perimeter fall protection on a top working platform and should extend at least 2 metresabove the working surface to provide protection for the public and workers outside the contained workarea.When selecting containment screens consider:the ability to support or contain imposed impact loads including building materials, equipment and wastematerialsresistance to wind loads on the supporting structurefrequency of inspectionchemical reactivity including flammabilityventilation requirementslight transmission requirementsdegree of protection provided from rain or washing down operationspattern and frequency of fixing points, andgaps created by a fixing method.

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Term
Summer
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Tags
Formwork, Formwork Structural Certificate

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