Detached semi-detached house

2017-07-21 21:41:34

Hello everyone,

we own a detached semi-detached house which was completed 2 years ago. The neighboring house is still for sale and not yet built.

However, I wonder if the partition wall is properly compacted/sealed... Can someone tell me something about this? See photo...

Thank you in advance.
Aero

2017-07-21 22:26:47

That looks to me like a one-brick thick pumice outer wall shell, behind which there is an insulation board layer. I don't think it's great that the edges of the insulation layer are exposed. On the party wall, the insulation board layer appears to be the outer layer, and on a battens then a foil, which is stabilized against fluttering by additional battens. In the process, a "field" has apparently torn open – that is certainly not "sealed". Was this done by a developer who intends to build on in the same way – but only after selling the neighboring half?

2017-07-21 22:32:49

That looks to me like a single-layer thick lightweight concrete outer shell, behind which there is a layer of insulation boards. I don’t really like that the edges of the insulation layer are exposed. On the party wall, the insulation board layer seems to be the outer layer, and on a battens there is a foil, which is stabilized against fluttering by further battens. Apparently, a "section" has been torn open – that is certainly not "sealed". Was this done by a developer who intends to build an extension in the same way – but only after selling the neighboring half?

Thank you for the answer. Yes, the extension will only be done after the sale... Unfortunately, I didn’t quite understand the rest, I’m not very skilled in construction matters ... I will definitely ask to have the foil repaired... What do you mean by "edges of the insulation layer"?

2017-07-21 22:38:05

What do you mean by "edge joints of the insulation layer"?

Well, you can see that behind the facing wall there is a layer of yellowish boards. The edge where the boards of the neighboring house butts up against it looks like it is not covered with anything. So they can basically "absorb" moisture or weather there.

2017-07-21 22:38:24

Insulation soaks up water = bad, because wet insulation does not insulate and rots (depending on the material). There should have been weather protection put up until the second half is built.

OT: It is totally stupid to want to build semi-detached houses (oxymoron) with multiple builders. That is a general contractor/developer business.

fleece-coated stone wool, just a guess. Battens on top. Neither likes water.

2017-07-21 22:46:39

Well, you can see that there is a layer of yellowish panels behind the outer masonry shell. The edge where the panels of the neighboring house abut appears to be uncoated. So they can basically "soak up" or weather there.

Now it’s clear, thanks. I will report this... I’m also surprised that the air gap between the outer wall and the insulation is not sealed, since water and moisture can enter there when it rains... But I don’t know if that can damage the outer wall?

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Detached semi-detached house

Aero84

11ant

Aero84

11ant

Alex85

Aero84