With much concern raised regarding silica content in concrete products and more recently in manufactured stone composite bench tops – that have resulted in serious illness and death, the
microscope has been turned on all things that may contain silica.
Within the timber flooring industry, hybrid flooring products (a timber look alike product) have been identified as products that may contain small traces of crystalline silica. These products include (but are not limited to):
These and other plastic or vinyl based products already on the market and others set to join it, are generally formulated with plasticizers, stabilisers and more, that often contain small elements of limestone, and this is where crystalline silica may naturally occur.
Whereas wet cutting concrete and kitchen bench tops together with wearing Respiratory Protective Equipment (RPE) is working to reduce and hopefully prevent further cases of silicosis, the issue with hybrid flooring products is that they are unlikely to be wet cut, raising the concern over creating dust that may contain crystalline silica particles. As such, it is essential that approved RPE is worn when cutting, penetrating or grinding these products.
Crystalline silica is found naturally in stone, rock, sand, gravel and clay. As mentioned above, it may become part of hybrid flooring products via the use of limestone. When these materials are worked on, the concern becomes the creation of fine silica dust that can be easily breathed into our respiratory system.
Use of these products by contractors and clean-up after use (to ensure the safety of property owners) is therefore essential.
The following products have undergone endorsed third party testing to verify that their product(s) fall beneath the Safe Work Australia exposure standard for respirable crystalline silica, which
specifies they must not exceed 0.1 mg/m3 (eight hour time weighted average), and NZ Worksafe workplace exposure standard of 0.05 mg/m3. These have been assessed by the respective testing agency’s as falling beneath the detection limit.
Manufacturers and importers of these products across Australasia have been invited to provide independent lab testing to verify the silica content of their products, and to ensure safety for use in Australia and New Zealand. To date, only the companies listed in this table have addressed this important initiative.
One of the main attributes of engineered flooring is that it has a face veneer or lamella of solid timber that is bonded onto a more stable base layer, thereby increasing the product’s in-service stability. Every board in an engineered floor is different.
The long-term success of any flooring installation relies on quality substrate materials being used along with appropriate preparation and selecting fit for purpose products. Whilst we all may be familiaaA question commonly asked by those who have bamboo floors installed in their home is, can my floors be re-sanded and recoated in future years?
The long-term success of any flooring installation relies on quality substrate materials being used along with appropriate preparation and selecting fit for purpose products. Whilst we all may be familiar with the more traditional substrates (and subfloors) such as concrete and particleboard, there are also many other materials that we come across in the construction industry.
