Carpet Less Than 1 5 Tog

We would suggest a target tog should be 0 8 or less.

Carpet less than 1 5 tog.

Tolerances for the dimensions of tufted and woven carpet. This is not the case. The previous industry standard has been to advise that the carpet and underlay should not exceed a tog rating of 1 5. Please note that the insulating effect of underlay and carpet are to some extent cumulative.

Heat exchange between floor surface and carpet is further insulated by the type of underlay used. As nzs 1385 specifies the following commercial tolerances for. In conjunction with the underfloor heating manufacturers association the carpet foundation carried out a research project. If you are looking for an underlay for underfloor heating in combination with a carpet this is quite a specialist requirement.

The combined value of the carpet and underlay should not exceed 2 5 tog and preferably less than 1 5 for heat pump systems. This showed that a carpet underlay with a combined thermal resistance of less than 2 5 togs allows underfloor systems to operate efficiently. 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. 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.

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. Quality manufacturers will have technical information on their products available to customers. 0 n narrow loom widths usually woven only are 0 69m 0 9m l 0m 2 0m. Suppliers however have stated that carpet must have a thermal resistance of no more than 1 5 1 7 tog.

Figures between 0 80 and 1 50 tog have been quoted by manufacturers foam underlays generally have a lower tog rating than felts. Underfloor heating is growing in popularity. We can offer the following information which has been taken from test reports in accordance with bs 4745 two plate test from bttg shirley. If you are wanting an underlay for hard flooring then a tog rating of less than 0 4 is ideal.

The best carpets to use with underfloor heating are those with tog ratings of less than 1 5. Tog values typical brintons 80 wool 20 nylon carpets have a tog value 1 4 and 2 3.