Hi eTool team, hoping to get some more info on the material ‘Carpets and Floor Coverings | Underlay | Nylon’ (and the other carpet underlay options – rubber, polypropylene).
For Material Quantity, when entering a m2 (default) value, it appears to use 400g/m2. Validated templates such as ‘Floor Covering – Carpet (glue down/Nylon)’ use this too.
However, when I look at products available on the market, e.g. Mohawk Thematic Thread, or Interface Nylon with Glasbac, these appear to have backing/underlay systems which are 1900 – 2700g/m2.
So for a standard practice or reference carpet underlay, I’m wondering if we should be accounting for more material mass and/or types. Or would you consider that the Mohawk and Interface carpet products have a lot more material backing than what’s typical in industry (noting this is for commercial projects, offices etc.)?
The default figures in our material library are based on industry averages. I would assume that the Interface & Mohawk carpets are ‘higher end’ products which wouldn’t be representative of the ‘average’ carpet.
Unless you can provide references that confirms that ‘business-as-usual’ in commercial/office buildings have thicker carpet underlays (i.e. NCC requirement for min carpet thickness), I would suggest sticking with the industry average defaults in the Reference Design.
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