ᐅ Carpet in the bedroom despite underfloor heating?

Created on: 18 Sep 2016 15:26
T
tabtab
Hello,

we are currently considering the flooring options. In the show homes, we really liked bedrooms with high-pile carpet. The rooms have a very cozy atmosphere. Generally, we are not big fans of carpet and plan to install hardwood flooring, tiles, and laminate throughout the house. However, in the bedroom and the adjacent walk-in closet, carpet would be a real treat for the feet, instead of the rather cold laminate in oak farmhouse plank style.

We have underfloor heating everywhere, and there are now anti-allergy carpets available. But what about the risk of dust mites? I’m a bit concerned about that.

What are your opinions, and does anyone have carpet in their house or bedroom?

I’m interested to hear.
Nafetsm13 Nov 2016 14:10
Yvonne, it is a Vorwerk carpet and yes, it is approved for use with underfloor heating. The lambda value is specified as less than or equal to 0.17 m² K/W (1.15 ft²¡°F¡hr/Btu).

I have read that carpets up to 0.2 m² K/W (1.29 ft²¡°F¡hr/Btu) are allowed, but it is recommended to stay at 0.15 or below.

The base material is 100% PES (polyester fleece), and the construction is listed as 1/10 tufted soft frieze – whatever that means.

The total thickness of the carpet is 9.5 mm (0.37 inches) – we would glue it down using, for example, Wakol Spaltex adhesive, which has a "zipper" effect. This supposedly makes it much easier to remove the carpet later on.

So, it is not as thick as a traditional high-pile carpet but slightly higher than, for example, low-pile carpets with 8 mm (0.31 inches) thickness (like the Vorwerk Bolero), which unfortunately do not appeal to us visually.
Nafetsm13 Nov 2016 14:27
I am wondering whether the data in the datasheet regarding thermal transmittance value applies to installation with or without adhesive. That makes a significant difference. Next to it says: Suitable for installation on radiant hot water floor heating – to me, that would mean the value refers to installation without adhesive, not including bonding. If it were bonded, the value would have to be significantly better.
L
Legurit
13 Nov 2016 14:54
The R-value is 0.17... Probably not the thermal conductivity (lambda), right?
Nafetsm13 Nov 2016 14:58
Yes, that's correct, R-value, sorry.
Y
ypg
13 Nov 2016 15:00
I don’t see any issue with 9mm (0.35 inches).
By the way, we also have carpet upstairs, which feels nice and cozy underfoot.

Best regards
L
Legurit
13 Nov 2016 17:22
The lambda value is then at 0.054 – a 34% loss remains (e.g., 20 W/m² instead of 31 W/m² at 30°C (86°F) supply temperature, 15 cm (6 inches) pipe spacing, and 40 mm (1.6 inches) coverage).