ᐅ Gas- and watertight house entry point

Created on: 6 Jan 2017 10:34
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Redsonic
Hello forum community,

I’m feeling a bit taken advantage of at the moment. First, the building authority in Brandenburg increased the fees for building permits by 40%, then the utility company requires the construction power supply to be installed only with a prior meter cabinet, and now there’s the next issue. During the construction start meeting, the topic of gas- and watertight building penetrations came up. These are required for electricity and now also for telecom. I still need to clarify the requirement for water. The single-service building penetration is supposed to cost 500€ (about 540 USD). Multi-service penetrations cost even more, but then it gets cheaper per service.

I’m really frustrated right now because building a house is already expensive enough. This topic seems like a money-making scheme for the providers of these building penetrations. My question is: just out of interest, where does this requirement actually come from? How do you see the cost situation? Is this the responsibility of the general contractor or the homeowner? The general contractor might argue that the telecom connection can be installed externally on the house wall or that the meter cabinet for electricity can remain in place, so perhaps the building penetration isn’t needed. I don’t want to start a dispute about costs right at the beginning, but it annoys me that I carefully calculated all additional costs and yet another extra charge emerges due to the latest regulations.

Best regards, Redsonic
BastianB6 Jan 2017 16:00
If the local authority prohibits it, there is nothing that can be done. We also have ready-mix concrete, but if one of the utility providers doesn’t cooperate, it won’t help. In the end, proper waterproofing is essential.
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ONeill
6 Jan 2017 16:27
A multi-utility connection was even mandatory for us.
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Redsonic
11 Jan 2017 21:58
So, I’m back. Thanks for your replies. I did some more research. Now, for us, electricity, water, and telecommunications all have to comply with these regulations. So it will be a multi-utility house entry. Hopefully, we can still use it, even though our water meter is on the other side of the utility room door.

I then checked the technical construction description (scope of work) again. Only the electricity part is mentioned at all. “Execution is carried out according to VDE regulations and the technical connection conditions of the energy supply company (TAB).” It also states that the connection can be made outside or inside the building. If inside, then according to DIN 18012 it must be gas- and watertight, and if necessary, pressure-water-tight. Of course, the general contractor can say that I can leave the connection pillar outside, and that the connection inside the building is my choice and therefore will result in extra costs. It’s all a mess, I tell you.

For water and telecommunications, nothing is mentioned in the scope of work.
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Baumhaus.Bau
12 Jan 2017 12:56
We have a Quadro-Secura from Doyma.
There were no specific requirements for us, and the general contractor informed us that the house entry for the connections must be installed by us. We then decided on a multi-cable system.
Regarding coordination:
This is not an issue at all because each service has its own conduit and connection points, allowing each technician to pull their cables through one after another and connect them inside the house (at least that was our experience).
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Knallkörper
13 Jan 2017 11:21
Redsonic schrieb:
It also states that the connection can be made either outside or inside the building.

And how do you get from the connection box into the house? Do you then not need a gas- and watertight sealing when, for example, passing through the masonry at a height of 1 meter (3 feet)?
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Evolith
13 Jan 2017 13:41
We have now also decided to go with a multi-utility house entry system. We chose a Hauff model, in a straight-through version.

We got it at a good price. Our site manager has only had positive experiences with this brand, just like with the Doyma products.