A
A amoreex said:
No, I know it doesn't meet secure water regulations.
But as the plumber said...
If there's a leakage, it affects the house less than if the joints are in the floor.

This winter, the temperature has been between 8-10 degrees Celsius down there, so in my opinion, it's frost-free.
Then a box will be built around it with insulation...
So the heating pipes will warm up the space :thinking:

I'm mostly thinking about how future home buyers will view it...
No problem, this is an established solution that's done all the time and has been applied in many houses.
 
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A
A amoreex said:
Then Säker vatten is not a law either. It's a recommendation that insurance companies rely on
Well, as you say, it's not a law.
But not even the insurance companies require you to follow Säker vatten.
 
A Aunty said:
well as you say it's not a law.
but not even the insurance companies require you to follow säkervatten.
No, they probably just demand it to be professionally executed..

A Aunty said:
no problem, this is a well-established solution that is done all the time and has been done in loads of houses.
Maybe it is..
Haven't seen it before. But if it were a basement, I wouldn't hesitate..
 
A
A amoreex said:
Well, they still only require it to be professionally done..


Maybe it is..
Haven't seen it before. But if it had been a basement, I wouldn't have hesitated..
requires it to be professionally executed.
 
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Rickard.
The disadvantages are quite small and the risks are minimal, so I don't think you need to be afraid of this solution if it feels best in all other respects.

The risk is if the heating system/pump breaks down, there's a chance that a hose/pipe/connection could freeze and break under the house. If it's accessible and can be fixed from underneath, I think it feels really safe.
 
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A amoreex said:
Hi!
I'm renovating the laundry room in our house built in 1990.
Back then, it was built with a plastic mat, and the distribution pipes to the radiators went up through the floor.
As in the picture.

I've had a plumbing firm here that will also handle the installation of a new heat pump, etc.
But we're going to have tiles and so on.
So I'm starting to reinforce the joists.

and I don't want all the pipes in the floor like this..

We have a good plan for the tap water. We can recess them in the interior wall and run them externally.

However, the heating pipes..
It's cramped in the space.

The plumber suggested we should run them down in the crawl space and connect them there.
You can splice them in the floor, etc.
But he said it's better if most of the splices are under the house..
And then build a box around with insulation..

For some reason, I'm hesitant about it.. I'm not sure why though. If it were a basement, I wouldn't hesitate.

The house is in Blekinge.
And when it was coldest in December, it was 8 degrees above zero in the crawl space under the area.

We have three sensors measuring temperature and humidity down there, so we have control.

Would you back away from such a solution?
And would you back away if you might want to sell the house in a few years?

Help me convince myself it's a good idea:rofl:

The firm is a larger one and is connected to "Säker Vatten" etc.
So it's not a small firm either.
You can build a rim on the floor around the pipes and bring the waterproofing up around it.
 
Rickard. Rickard. said:
The disadvantages are quite small and the risks are low, so I don't think you need to be afraid of this solution if it feels best in all other aspects.

The risk is if the heating system/pump breaks down, there's a chance that a hose/pipe/connection could freeze and break under the house. If it's accessible and can be fixed from underneath, I think it feels really safe.
Yes, it seems like the better solution from a cost aspect. And also from a layout perspective.

Most joints will end up under the house or in the insulation where they can be accessed from below.

There will be one joint in the inner wall to extend the pipes from the upper floor down to the foundation.

I have temperature monitoring down there to measure humidity and temperature. So as long as I have my log, it's a minimal risk if something breaks down in the pump as well.
 
FlugfiskarniJämtland FlugfiskarniJämtland said:
You can build a frame on the floor around the pipes and pull the waterproofing layer up around it.
I was thinking about that.
But just like other things, it is no longer an approved solution according to GVK etc..
And I still have the problem that they take up a lot of space in the room
 
A amoreex said:
I was considering it.
But just like other things, it's no longer an approved solution according to GVK etc..
And I still have the problem that they take up a lot of space in the room
Oh, that's new information for me, can you link to GVK where it says that? I don't understand why it would differ from, for example, a 20mm threshold and water being able to get out into a room without a waterproof membrane.
 
FlugfiskarniJämtland FlugfiskarniJämtland said:
Well, that was new info for me, can you link to gvk where it says that? I don't understand why it would differ from, for example, a 20mm threshold and the water can get into a room without a waterproof layer.
Apparently, it has to do with connecting the waterproof layer and is replaced with Pipe penetration sleeve. https://www.gvk.se/fragor-och-svar/...-en-klack-for-rorgenomforingar-i-badrumsgolv/

However, I have too tight spacing between the pipes according to my plumber. Plus, we have started to value a level floor surface and the simplicity of laying tiles easier.
 
A amoreex said:
apparently has to do with connecting the waterproofing and has been replaced with Pipe Penetration Sleeve.
[link]

However, I have too tight between the pipes according to my plumber.
Plus we have started valuing a flat floor surface and the ease of laying tiles more easily.
In this case when it's a laundry room, that part should be comparable to the sink cabinet in a kitchen. I would make a block, pour concrete and then rubberize on top and around the pipes. The plumber can write a deviation that you approve. If you can't meet all the requirements, you have to use common sense, I believe.
 
FlugfiskarniJämtland FlugfiskarniJämtland said:
In this case, when it is a laundry room, that part should be comparable to the sink cabinet in a kitchen. I would have made a ledge, cast up, and then used rubber on top and around the pipes. The plumber can write a deviation that you approve. If you can't meet all the requirements, I believe you should use common sense.
Yes, that's true.
However, it leads to having a lot of pipes in the way of how we planned to do the furnishing and so on.
 
I would not be particularly afraid to run heating pipes in the ceiling of the crawl space. So far, I've never experienced heating pipes in a crawl space freezing. Generally, the pipes are quite warm when it's coldest outside.

However, I have experienced heating pipes freezing in attics/lofts, when there hasn't been circulation due to radiators being turned off in rooms used for storage.

It's not according to safe water regulations, no, but if it makes things much easier, I wouldn't feel worried about doing so. If it leaks/freezes, the damage would probably be minimal.
 
M Maalkl said:
I would not be particularly afraid to run heating pipes in the ceiling in the crawl space. So far, I've never encountered heating pipes in the crawl space freezing. Generally, the pipes are quite warm when it's coldest outside.

However, I have experienced heating pipes freezing in attics/lofts, when there hasn't been circulation in them due to turned-off radiators in rarely used rooms.

It's not according to safety standards, no, but if it makes things much easier, I wouldn't feel worried about doing it. Should there be a leak/freeze, the damages would likely be minimal.
Okay!
Yes, the attic feels more risky as a potential leak would run into the house...

In my case...
The worst that can happen instead is that the insulation gets wet, and you can replace the damaged part from underneath...

That's likely how it will be!
 
Another thing I thought about if you're going to use pex or similar is the risk of mice gnawing holes in the pipes. I would say there's a greater risk of that than them freezing. But that risk exists as soon as they are embedded, whether it's in the wall or the floor.
 
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