ᐅ Attaching basement insulation? Construction errors, perimeter insulation for exterior walls

Created on: 17 Nov 2015 23:40
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Dieter_SLS
Hello,
I am new to the forum, and we are building with the company Systemhaus Fell from Merzig in Saarland.
So far, we are quite satisfied with the contractors, but towards the end, there are the usual small issues that still need some rework, and I would appreciate some advice on these.

Unfortunately, the basement was only insulated up to the height of the basement ceiling with perimeter insulation (12cm (5 inches)), and the insulation of the exterior wall was extended down to the perimeter insulation and then plastered over. This means the standard exterior insulation will be buried in the ground up to the height of the floor-to-ceiling windows once we start building the terrace next year.
The basement ceiling itself is not insulated at the window level. For a light well, some pieces were simply cut out of the perimeter insulation and glued in (see photos).
Therefore, my questions are:

1. Is it acceptable for the exterior wall insulation to be buried underneath the terrace floor, or should we consider something specific when building the terrace?
2. Can the missing basement insulation simply be glued on afterwards?
3. The contractor who insulated the exterior facade told us to repaint the joint between the perimeter insulation and the facade insulation with waterproof slurry... we applied the slurry over the plaster... was this correct?

Thank you for your feedback and any personal experiences.
If I was unclear or if further information is needed for an answer, I would also appreciate your feedback.

Bottom edge of a blue-gray window frame with damp, smeared wall and mud at the entrance.


Basement window in soil with stones and plaster residues in front of a white exterior wall.


Angled grid grate cover in front of a glass opening beside a white wall; cables on the ground.


Metal device with grid mesh standing next to a door; wooden boards and cables lying on the floor.
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Dieter_SLS
13 Apr 2016 12:07
Hello,
after some time, the developer sent a contractor who installed the insulation. According to an appointed expert, the insulation has been properly completed.
All complaints have been addressed fairly quickly so far. On-site meetings and discussions with the construction manager – and his successor, as well as with the management – have also been satisfactory. It should be noted that the developer does not carry out the work themselves (this is part of the concept); there are always subcontracted companies involved, and when several trades are affected, a joint appointment must be arranged to find a solution. However, a date and a solution have always been found. From the perspective of construction execution, we are satisfied with the building process.
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Peanuts74
29 Apr 2016 06:51
What exactly is the gray material? Will a base plaster be applied over it? Usually, there is a step first and then the terrace, so the plaster wouldn’t be deep enough otherwise???