ᐅ Insulating plastic fittings/water pipes and underfloor heating under the screed?
Created on: 14 May 2016 17:48
A
AndreasW
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
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
The insulation is adequate for heating pipes, but...
Drinking water pipes should never be installed in a floor with underfloor heating.
Insulation won’t help here because your cold water will always be warmed up initially and may potentially become contaminated with bacteria.
The issue is not heat loss from the pipe, but that it cannot stay cold.
This assumes an ambient temperature of about 24°C (75°F).
Your underfloor heating runs at around 30 to 35°C (86 to 95°F).
Therefore, your cold water temperature will match that.
Sorry if my response is too late.
Alternatively, run new pipes above the ceiling.
Drinking water pipes should never be installed in a floor with underfloor heating.
Insulation won’t help here because your cold water will always be warmed up initially and may potentially become contaminated with bacteria.
The issue is not heat loss from the pipe, but that it cannot stay cold.
This assumes an ambient temperature of about 24°C (75°F).
Your underfloor heating runs at around 30 to 35°C (86 to 95°F).
Therefore, your cold water temperature will match that.
Sorry if my response is too late.
Alternatively, run new pipes above the ceiling.
S
Sebastian7927 May 2016 09:23Yeah, right – where is that supposed to be installed? And where do you want to place it? Connect it to the faucet via Wi-Fi?
S
Sebastian7927 May 2016 09:38It stays cold – you don’t really think that will be a problem, do you?
This is used everywhere and never causes any issues.
But go ahead, tell me how you would solve this differently?
This is used everywhere and never causes any issues.
But go ahead, tell me how you would solve this differently?
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