Monthly Archives: March 2014

TOG RATINGS AND UNDERFLOOR HEATING

 

Wool rich carpet is well known for its insulation properties, and  the tog rating of  a  wool rich carpet is very much  dependant upon its Pile Weight,  Density of Construction and type of backing.

Generally the heavier the pile weight and the denser the construction the higher the tog rating.

The majority of Adams Carpets ranges would achieve a rating of between 1.50 – 2.2 tog.  – With the exception of the Woodstock range (100% Nylon) which we estimate would achieve between 1.40 – 1.70 tog.

Careful consideration should be given to both the temperature ranges of the heating system, and the type of underlay to be used.

Note for information;

Heat exchange between floor surface and carpet is further insulated by the type of underlay used. Figures between 0.80 and 1.50 tog have been quoted by manufacturers (foam underlays generally have a lower tog rating than felts).

Please note that the insulating effect of underlay and carpet are, to some extent, cumulative.

To determine a working approximation the tog rating of both carpet and underlay should be added together and 1.0 tog subtracted. This calculation has been proved to give a more realistic value.

For example: Carpet at 1.70, underlay at 1.40,

1.70 + 1.40 – 1.0 = 2.10 tog (suitable for floors 2.11 tog and above)

GUIDELINE TOG RATINGS:

Kasbah Twist                                      2.10 – 2.20

Natural Perceptions                            2.00 – 2.10

Rustic Berber Twist                            1.75 – 1.90

Martinique/Stratosphere                     1.70 – 1.80

Fine Worcester                                   1.70 – 1.80

Sylvan Shadows                                 1.60 – 1.70

Castlemead Twist/ Heather                1.50 – 1.60

La Dolce Vita/Boulevard/Catherine    1.50 – 1.60

Kasbah Stripe                                     1.50 – 1.60

Castlemead Velvet Stripe                   1.40 – 1.50

Inspirations                                         1.40 – 1.50

Florentine                                            1.40 – 1.50

Woodstock range                                1.40 – 1.70

Wyre Forest                                        1.40 – 1.50

Artistry                                                1.40 – 1.50

 

S. P. Webster

Technical Manager

Adam Carpets Limited