Defects That You Should Look For

You just bought your house, and you are worried about the structure being in reasonable condition or if there are defects within the property that are causing you to have second thoughts.
We recommend a building pest inspection in Melbourne conducted by Registered Building Practitioners that will provide you with a genuine, thorough building pest inspection report that sheds light on your concerns. These defects are just some that you should look for:


Mould associated with damp building conditions can trigger congestion, respiratory infections, asthma, and allergic conditions, especially if the person subjected to this has a weakened immune condition. During property inspections in Melbourne, we can sometimes find dampness in subfloors and wet areas, especially subfloor mould, which is caused by many factors, including broken drains, the contour of land being such that its diverts water towards the house footings, and runoff from neighbouring properties, especially from there retaining walls. Regularly conducting an inspection of the subfloor can help avoid issues like this. The absence of ceiling exhaust fans causes mould during the operation of extreme condensation.


Consider investing in appropriate insulation for your walls and ceilings. This will result in saving you money as well as providing you with a pleasant and healthy environment. A well-insulated home will provide year-round comfort and help to cut cooling and heating costs. For optimal efficiency, your home should be properly insulated from the roof to the footings. Sisalation under your roof tiles or metal roof should be considered, as it can also save you from heating and cooling costs. The biggest mistake that builders and homeowners make is not providing some form of ventilation to the roof. This can result in the accumulation of smells and prevent the roof from “breathing.”


Wall cracks are not always structural, but they can be a sign that more investigation is required with the consultation of a house inspector. House inspectors in Melbourne, during a pre-purchase building inspection, typically inspect and comment on these cracks, which are sometimes superficial and caused by settlement. A house inspector can assess the seriousness and structural implications of a wall crack by examining its location and whether it is jagged, horizontal, or vertical. Gaping cracks are a good indicator of a serious structural defect requiring immediate rectification.


AS 2870-2011 “Residential Slabs and Footings” advises that trees growing in extremely reactive soils (Class E sites) should be planted a distance equivalent to 1½ x mature height from the house.  For highly reactive soils (Class H), 1 x mature height; and moderately reactive soils (Class M sites), ¾ x mature height. Two groups can roughly categorize the soils on which houses are constructed: granular and clay.  Only on-site testing by a geotechnical engineer can classify soil types and this is beyond the scope of this inspection. In all cases, for the best property management, you should establish the classification of your foundation material so the correct maintenance can be applied.


Roof defects are frequently discovered during property surveys, and they can be quite expensive to repair. Unfortunately, these problems are often left unaddressed, usually because property owners are unaware of their existence. To assist you in identifying potential issues, we have compiled a list of the most common roof defects that we come across during surveys. One of the most common problems is individual slates or tiles breaking or cracking. This can occur due to weather conditions like high winds or a storm, corrosion of the nails holding the slate in place, or the rotting of the wood to which the slates are fixed. If you notice broken tiles, you may only need to replace the individual ones that are damaged. However, this could also be a part of a larger problem that might require re-roofing.

If a valley is blocked, it can lead to water overflowing and potentially cause more issues if left unattended. However, unblocking the valley is a relatively simple task that won’t cost you too much. On the other hand, if there is a crack in the lead of the valley and water is leaking through, repairing it becomes a larger but necessary task.

What’s a MAJOR Defect?

According to the Act, a ‘major defect’ refers to a defect in a ‘major element’ of a building. This defect must be likely to cause the building to become unusable for its intended purpose, or it must pose a risk of destruction or collapse of all or part of the building. Defective design, faulty workmanship, defective materials, or a failure to comply with the National Construction Code can cause the defect. Load-bearing components such as foundations, footings, floors, walls, and beams, along with fire safety systems and waterproofing, make up a ‘major element’ of the building.


A major defect is a defect of sufficient magnitude requiring building works to avoid unsafe conditions,loss of function or further worsening of the defective item.


If the item being inspected is serviceable, it means that the building material or component is in reasonable condition for the age of the dwelling.