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I'm doing a research on environmentally sustainable timber materials for our recent residence projects. Would you be able to suggest on the possible low embodied carbon timber types and provide some information on the sources?
Woodsolutions Answer +

We have some information on our website that will help with your research project. If you click on this link it will take to the relevant location https://www.woodsolutions.com.au/articles/carbon-storage. Note that you have to enter a password and then log in to access this data. 

Carbon storage

Answered on 06-02-2021
Please note that our answer is based on the best advice available at the time. If the National Construction Code, Australian Standards or local requirements have been subsequently amended, our answer may no longer be correct in all details. For more information, please read our disclaimer.

Question

For timber building design, is it suitable for countries like Singapore where the average relative humidity is about 85%. With the timbers subjected to high humidity or constant wind-driven rain, the constant moist timbers are highly likely to be attacked by subterranean termites (flying termites) and wood borers even though the timbers are treated with insect resistance chemical. In addition, the effectiveness of chemical treatment normally can last for only 5-10 years and typical buildings are designed with a life span of 30-100 years. How do we overcome this problem?

Are there any needs to carry out (yearly or every 5 years) inspections for the structural timber, if yes, with the ceiling and building services cover the full view of the timber members, how can the inspections be carried out effectively?

If I need to find out more about the termite barriers design code and installation criteria in Australia and then engaging an expert service from a Registered Principal Architect or Registered Principal Engineer to endorse the understanding, would you be able to help?

Thank you.
John Toh
Mobile: +65 9788 2333
Woodsolutions Answer +

We understand drywood termites are active in Singapore, so it would be advisable to use preservative treated timber even if not exposed to the weather. A chemical treatment applied under pressure will last much longer than 5-10 years, as long as it can penetrate into the timber. We are not familiar with the types of preservative treatment available in Singapore, or the design of local housing, or the species of timber used in building, so we suggest you seek advice from an organisation such as the Singapore Timber Association, website here: https://www.singaporetimber.com. If the Association doesn't offer an advisory service perhaps local timber companies can advise you, based on their experience. 

Singapore timber

Answered on 26-01-2021
Please note that our answer is based on the best advice available at the time. If the National Construction Code, Australian Standards or local requirements have been subsequently amended, our answer may no longer be correct in all details. For more information, please read our disclaimer.

Question

What is the general availability of hardwood poles at the moment and has supply has been affected by recent bushfires? Are hardwood poles available from certified sustainable sources?
 
Woodsolutions Answer +

Since we don't trade in timber we are not closely in touch with short-term fluctuations in the market. Company websites suggest hardwood poles are readily available, but website data may not necessarily be updated regularly. You will find suppliers if you write 'hardwood poles Australia' or similar wording in your browser and we suggest you contact the companies concerned. Regarding sustainability, hardwood poles are mostly sourced from State Forests which operate under strict, legislated guidelines. Details are set out on the relevant government websites, for example in NSW you will find forest management details here: https://www.dpi.nsw.gov.au/forestry/managing-forests.

Forest management

Answered on 09-12-2020
Please note that our answer is based on the best advice available at the time. If the National Construction Code, Australian Standards or local requirements have been subsequently amended, our answer may no longer be correct in all details. For more information, please read our disclaimer.

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