Hello everyone,
We have just started renovating our future new home and are planning to install underfloor heating. Since the building dates back to the 1950s, it has a wooden beam ceiling, which is common for that period. When researching the topic, it becomes apparent that using the "standard" liquid screed might cause issues with the structural load (weight) and/or door frame heights (floor buildup height).
Of course, we will consult with qualified professionals about this, but I would be interested to hear how you have approached similar challenges or if you have alternative solution suggestions.
Thank you!
Best regards
We have just started renovating our future new home and are planning to install underfloor heating. Since the building dates back to the 1950s, it has a wooden beam ceiling, which is common for that period. When researching the topic, it becomes apparent that using the "standard" liquid screed might cause issues with the structural load (weight) and/or door frame heights (floor buildup height).
Of course, we will consult with qualified professionals about this, but I would be interested to hear how you have approached similar challenges or if you have alternative solution suggestions.
Thank you!
Best regards
Hello "ShawN46".
Solutions for warm water underfloor heating are also available on the market for buildings constructed with timber framing.
In this context, we are not necessarily talking about a wet screed.
Especially in buildings constructed with timber framing, the supporting joists are usually not designed to carry an additional (constant) load of 140 kg/m² (29 lb/ft²). But you have already mentioned this aspect.
There are also systems (these, however, are special designs because they deviate from the construction method according to DIN 18560-2) with significantly lower load.
And they are slimmer in overall height as well!
Regards, KlaRa
Solutions for warm water underfloor heating are also available on the market for buildings constructed with timber framing.
In this context, we are not necessarily talking about a wet screed.
Especially in buildings constructed with timber framing, the supporting joists are usually not designed to carry an additional (constant) load of 140 kg/m² (29 lb/ft²). But you have already mentioned this aspect.
There are also systems (these, however, are special designs because they deviate from the construction method according to DIN 18560-2) with significantly lower load.
And they are slimmer in overall height as well!
Regards, KlaRa
Why not use a dry screed system? That results in a total build-up height of 45 mm (1.8 inches), and the weight is quite low since the screed is only 2 cm (0.8 inches) thick.
If that is still too thick, there are also metal honeycomb panel systems where the pipe runs through and is then filled with leveling compound. The total build-up height is about 1 cm (0.4 inches). I would definitely lay a waterproof membrane underneath in case of any water damage.
If that is still too thick, there are also metal honeycomb panel systems where the pipe runs through and is then filled with leveling compound. The total build-up height is about 1 cm (0.4 inches). I would definitely lay a waterproof membrane underneath in case of any water damage.
Thank you for your responses!
Yes, we have of course also considered using dry screed. The build-up height should not be a problem; we have at least 10cm, possibly even 12cm (4 inches, maybe 5 inches) of space.
What interests me about the dry screed system is: can it be installed properly flat? I really like the self-leveling feature of flow screed.
I reviewed the original plans and drawings from 1955 and found a load capacity of 250 kg/m² (51 lbs/ft²).
However, we still have time before making a decision. We are currently working on the interior "demolition" (removing wallpaper, floor covering, etc.) and I also want to completely redo the electrical installation before we tackle the heating system.
Yes, we have of course also considered using dry screed. The build-up height should not be a problem; we have at least 10cm, possibly even 12cm (4 inches, maybe 5 inches) of space.
What interests me about the dry screed system is: can it be installed properly flat? I really like the self-leveling feature of flow screed.
I reviewed the original plans and drawings from 1955 and found a load capacity of 250 kg/m² (51 lbs/ft²).
However, we still have time before making a decision. We are currently working on the interior "demolition" (removing wallpaper, floor covering, etc.) and I also want to completely redo the electrical installation before we tackle the heating system.
ShawN46 schrieb:
The build-up heights should probably not be an issue; we have at least 10cm (4 inches), maybe even 12cm (5 inches) of "space."Are the door lintels really that comfortably high?
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