This video shows what a weathertight assessor will look for and test in your leaky home. Weathertight Services will organise a property assessment if your claim is eligible. The assessment is undertaken by a highly skilled building surveyor who is often required to make cut-outs in external walls.
Beware of health hazards from mould and fungi
You need to be aware that there are potential health issues if walls are cut into during your property assessment. There might be mould or fungi growing in the damp conditions of your leaky home. You are at risk if you inhale their dry spores.
For the assessment, it can be better to cut panels in exterior claddings rather than internal linings to minimise health risks. Your assessor will temporarily repair any holes they create for these reasons.
The purpose of this interview is to provide an insight into intrusive weathertight investigations. After a visual inspection your assessor will be likely to test for moisture behind the cladding with a non-invasive meter. To confirm the possibility of moisture in your framing holes will need to be drilled to allow probes to be inserted. This will enable accurate recording of the moisture content in the framing and likelihood of decay existing. Drill tailings may also provide your assessor with an indication of the underlying framing condition.
If high levels of moisture are determined or decay is suspected, panels of cladding will need to be carefully removed to provide confirmation and/or determine the cause of moisture.
Removal of this panel revealed water damaged building paper which is infected with the toxic mould Stachbotrys. Decaying timber has also been located. The pattern of decay and deterioration may indicate the path of water ingress.
Samples of timber can be removed to determine possible timber treatments and/or the presence and type of early decay. Such samples are carefully recorded prior to despatching to a laboratory for testing.
High quality photographs will be taken throughout the assessment process. Frequently there may be no apparent indications of what lies within the walls of a leaky building on either interior or exterior walls. This framing has been decaying unseen for a number of years and has caused serious structural deterioration in the wall, floor and floor beam members. A photographic record of an incorrect insulation of the head flashing and samples of suspected mould will also be taking to a laboratory for analysis.
Your assessor will make temporary repairs by replacing the removed cladding and may have to install patches where this is not possible and will make every endeavour to leave your property clean and tidy.
This information is published by the Ministry of Business, Innovation and Employment’s Chief Executive. It is a general guide only and, if used, does not relieve any person of the obligation to consider any matter to which the information relates according to the circumstances of the particular case. Expert advice may be required in specific circumstances. Where this information relates to assisting people:
with compliance with the Building Act, it is published under section 175 of the Building Act
with a Weathertight Services claim, it is published under section 12 of the Weathertight Homes Resolution Services Act 2006.
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