Carpet Less Than 1 5 Tog

This showed that a carpet underlay with a combined thermal resistance of less than 2 5 togs allows underfloor systems to operate efficiently.

Carpet less than 1 5 tog.

Underfloor heating is growing in popularity. A lightweight 60 90 oz sponge underlay generally has a relatively low tog rating of 0 5 which makes this type of underlay most suitable for use with underfloor heating. Our 80 wool 20 nylon carpets have a tog value somewhere between 1 4 and 2 3. Quality manufacturers will have technical information on their products available to customers.

We can offer the following information which has been taken from test reports in accordance with bs 4745 two plate test from bttg shirley. This theoretically means that shaw carpets in the 4 5 rating would be ideal for areas where there is going to be a lot of traffic like hallways and stairs whilst a rating of less than 2 5 is going to be better in an area that isn t used so. The combined value of the carpet and underlay should not exceed 2 5 tog and preferably less than 1 5 for heat pump systems. In conjunction with the underfloor heating manufacturers association the carpet foundation carried out a research project.

The best carpets to use with underfloor heating are those with tog ratings of less than 1 5. The previous industry standard has been to advise that the carpet and underlay should not exceed a tog rating of 1 5. As nzs 1385 specifies the following commercial tolerances for. 0 n narrow loom widths usually woven only are 0 69m 0 9m l 0m 2 0m.

If you are wanting an underlay for hard flooring then a tog rating of less than 0 4 is ideal. We would suggest a target tog should be 0 8 or less. Suppliers however have stated that carpet must have a thermal resistance of no more than 1 5 1 7 tog. It makes sense to take care in choosing carpet and underlay that will work well with the underfloor heating.

If you are looking for an underlay for underfloor heating in combination with a carpet this is quite a specialist requirement. This is not the case. However research conducted by bsria in bracknell and funded by the carpet foundation in conjunction with the underfloor heating manufacturers association uhma has proved conclusively that any carpet can be used with an underfloor heating system without impairing the performance of the system. Figures between 0 80 and 1 50 tog have been quoted by manufacturers foam underlays generally have a lower tog rating than felts.

Tolerances for the dimensions of tufted and woven carpet. Heat exchange between floor surface and carpet is further insulated by the type of underlay used.