ᐅ Insulating plastic fittings/water pipes and underfloor heating under the screed?

Created on: 14 May 2016 17:48

Hello,

as shown in the two photos, the hot and cold water pipes are insulated. The plumber says the fittings (connectors) do not need to be insulated because they are made of plastic. Is this correct, or could this cause problems regarding thermal insulation, condensation, or noise?

The pipes are located under the screed, meaning there will be polystyrene insulation and a self-leveling screed on top.

The plumber suggests he could wrap fleece over them, but says it is not necessary. What is your opinion?

Best regards, Andreas

Baustellenboden mit Kabelkanälen und Metallrohren auf Sandboden.

Holzfußboden mit installierten Metallrohren, flexiblen Kabelkanälen und Metallclips.

wrobel17 May 2016 11:12

Hello Andreas

I can only provide a definite answer for Germany.
All heated pipes, except for branch lines, must be insulated with 100% of the insulation thickness.
At the crossing points of the pipes, the insulation thickness can be reduced to 50%.

Olli

AndreasW18 May 2016 09:47

The plumber has now wrapped the fittings with fleece. Is this appropriate? What do you think?

Crossed metal pipes and a red pipe lying on a construction site surface.

Two hot water pipes in a timber stud wall, with insulation and metal brackets.

AndreasW18 May 2016 15:41

What do you think about insulation using fleece/felt? (as shown in the photos above)?

Sebastian7918 May 2016 17:38

#10

What is the point of heavy insulation?

AndreasW18 May 2016 21:39

#11

What should the fittings be insulated with instead?

FrankH19 May 2016 08:29

#12

Try searching for insulation fittings from Missel; that might be an alternative. Whether it is cost-effective, however, is another question.

ᐅ Insulating plastic fittings/water pipes and underfloor heating under the screed?

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