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When ordering flooring, the following should be provided to your timber supplier:
You should also ask your supplier to provide the moisture content of the timber they will provide.
* To calculate linear metre quantity, the following method can be used:
Total flooring (m) = (Area of Floor (m²) X 1000) + Wastage
Cover Width (mm)
Wastage allowances should be 5% for end-matched flooring and 10% for plane and butt joined flooring.
Timber flooring products should be fully protected by your timber merchants or your timber supplier to ensure appropriate moisture content. Once delivered to site it is the contractor/installer’s responsibility to have the timber remain at that appropriate moisture content. The timber should be protected from weather and dampness while on site until the project is completed.
There are two traditional construction methods when installing feature timber flooring:
A more expensive method but often method used, for a variety reasons, includes laying a platform/structural floor over the joists and bearers or engineered floor trusses/joists using chipboard flooring, or similar and continue framing and getting the building weather tight and when near completion laying the flooring either as a traditional floor or as overlay flooring.
When constructing feature timber floors on bearers and joists it is critical to ensure the subfloor area has adequate cross-flow ventilation, whether by natural or by mechanical means. Minimum requirements for ventilation are outlined in the National Construction Code (NCC) , but the minimum subfloor ventilation recommended for feature T&G floors is 7500mm2/m of external walls, which is greater than NCC requirements.
The information above is based on information contained in Timber Queensland Limited Technical Data Sheets.
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