Timber Framing Testing
Timber framing testing
You may be about to or may have already retained the services of a building surveyor who is a member of the New Zealand Institute of Building Surveyors (NZIBS).
If so, there are certain things you should know about how our members operate and what they can do for you.
This guide deals with the level of professionalism you should expect to receive from our members.
Checking the condition of your timber framed building
You may need to check the condition of the timber framing in your building, especially when it is being repaired.
If this check is being done by a building surveyor who is a NZIBS registered, you can expect them to act as follows:
- They will get a good understanding of the work to be undertaken and of the construction materials in question. They will confirm and agree with you the job’s terms and conditions and provide you with details of the likely cost. They will also check they do not have any conflicts of interest in terms of the work you want them to do.
- On engagement, the building surveyor will ensure the appropriate equipment and personal safety gear is on hand for the sampling that will be necessary.
- They will also identify the timber used in the construction and the scope and scale of any decay or damage. This may involve drilling or other invasive methods. If necessary, they will also secure the assistance of other construction professionals as part of completing the work to a high standard.
- When taking samples, they will do so from the most appropriate places, following Ministry of Business, Innovation and Employment (and Department of Building and Housing historic) guides and NZIBS recommended procedure. Details of all samples and the location from which they were taken will be properly recorded, supplemented by photographs. When checking bulk timbers (boundary joists and multiple studs), they will consider the condition of the whole area, rather than just relying on the visible condition of the outer/facing timber. This will ensure hidden decay or damage is not overlooked.
- Timber framing in need of replacement will be marked to inform your builder of the location and extent of the affected timber.
- Collected samples will be moisture-tested before being placed in a re-sealable bag to avoid cross-contamination.
- Finally, samples will be sent to a specialist for analysis and reporting, before a remedial repair scope is confirmed and a photographic record of the condition and repairs will be provided when the remediation is complete.
For further information on the NZ Institute of Building Surveyors please go to: www.buildingsurveyors.co.nz or phone 0800 11 34 00.