…and narrow towards the top. The effect on the floor is that the internal supports drop below the bottom of the bearers and the floor becomes springy and sags slightly….
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A5.1.2 Solar radiation
A5.1.2 Solar radiation Solar Radiation related movement. The natural drying out of soils around a building is a process that occurs constantly from solar radiation. This can cause cracking to occur…
2.5.3 Floor structure
…newel posts, handrails and balustrades. Deformation will commonly result from one or more of the following causes: poor design; substandard workmanship and materials used in construction; timber pest damage; defective…
2.5.1 Roof structure
2.5.1 Roof structure 2.5.1.1 Roofframing and roofing (a) Distortion/lifting/damage Movement of the roof is commonly caused by the roof not adequately resisting wind uplift forces. Often the roofing is not adequately secured…
2.5 DEFORMATION
2.5 DEFORMATION The NCRB and Standards Australia Glossary of Building Terms, HB 50 describes ‘deformation’ as a change of shape of a structural member or structure, resulting from the applications…
2.4.3 Floor structure
…or the like. Cracking will commonly result from one or more of the following causes: differential shrinkage; foundation movement; inadequate support; deformation duc to creep; thermal movements: or corrosion of…
2.4.2 Wall structure
…are similar to those in external render and stucco. 2.4.2.5 Internal lath and plaster, plaster sheet, and plasterboard Major cracking Cracking in internal plaster finishes is usually caused by movement occurring…
2.4.1 Roof structure
…thermal movement; foundation movement; and corrosion of steel reinforcement. Small cracks may not be harmful in themselves, but if they allow moisture to penetrate readily to the reinforcement and cause…
2.4 STRUCTURAL CRACKING AND MOVEMENT
2.4 STRUCTURAL CRACKING AND MOVEMENT Cracking and movement is a problem that will spoil the appearance of the building and can be structurally dangerous. The symptoms and causes outlined in…
2.3 STRUCTURAL DAMAGE
…and there will often be overlapping, The groups are: (a) Structural Cracking and Movement. See Clause 2.4 and Appendix A for more information. (b) Deformation. See Clause 2.5 and Appendix…