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Stage 2.5 Building Construction

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2.5 Building approval
Construction method and its various stages of construction help to identify key construction process involved in various construction methods. During the construction of residential houses various inspections and certification are required in order to ensure the house is constructed to required standards as specified by building regulations. Independent building certifiers could carry out these inspections. Some of the key functions of building certifier are (Department of Local Government and Planning 2011):
• Determines building applications and provides decision on building approvals
• Conducts building inspection to ascertain they meet building standards
• Informs builder for any incompliance in minimum standard and …show more content…

A typical Timber/steel frame, brick veneer house constructed on slab on ground has five key stages where Standard Building Regulation 1993 requires inspections (Smith, Smith & Mitchell 2013).
Stage 1- Site: site inspection is done to ensure that everything is according to the approved plans and services are located according to the council plans. At this stage land surveyor might have positioned building footprint to ensure set back distances as well.
Stage 2- Footings: At this stage excavation and reinforcement that supports the building are inspected. This inspection is carried out before the concrete is poured to ensure size and depth of the footings are correct and right size reinforcements with required spacing is maintained.
Stage 3- Slab: slab inspection is carried out after footings have been poured. At this stage reinforcement, plastic membrane, compaction of soil, lagging of horizontal plumbing penetration are inspected.
Stage 4- Frame: At this stage framework will be assessed according to residential timber framed standards (Australian Standard AS1684.2-2010 – Residential Timber Framed Construction) or engineer’s design for timber or steel frame. Items such as tie downs, bracing, truss installation and sizes of structural member are

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