ᐅ Moisture between the calcium silicate block wall and the external insulation system
Created on: 25 Jul 2011 15:23
L
LangneseHello everyone!
We have purchased a newly built condominium (first occupancy) from my local developer! The multi-family building (12 units) was constructed using solid masonry (calcium silicate brick) and insulated with 12 cm (5 inches) thick continuous thermal insulation. From a rooftop terrace, a floor drain was routed through the masonry and the continuous insulation into a rain gutter (downpipe). This floor drain was made of zinc pipe and apparently connected right within the area of the continuous insulation!
Over an unknown period, rainwater from the balcony has partially seeped between the masonry and the insulation. The two apartments below now have mold on the walls in this area, and the units also have a musty smell.
The developer has addressed the cause but now tells us that it is not necessary to reopen the insulation at this spot to dry out the masonry. When the pipe was still leaking, brown stains even appeared on the exterior plaster. Tomorrow, a moisture measurement will be conducted on the interior walls. Are there any experts here who could provide advice or guidance on how we should approach the developer about this?
Thank you in advance!
Best regards
Langnese
We have purchased a newly built condominium (first occupancy) from my local developer! The multi-family building (12 units) was constructed using solid masonry (calcium silicate brick) and insulated with 12 cm (5 inches) thick continuous thermal insulation. From a rooftop terrace, a floor drain was routed through the masonry and the continuous insulation into a rain gutter (downpipe). This floor drain was made of zinc pipe and apparently connected right within the area of the continuous insulation!
Over an unknown period, rainwater from the balcony has partially seeped between the masonry and the insulation. The two apartments below now have mold on the walls in this area, and the units also have a musty smell.
The developer has addressed the cause but now tells us that it is not necessary to reopen the insulation at this spot to dry out the masonry. When the pipe was still leaking, brown stains even appeared on the exterior plaster. Tomorrow, a moisture measurement will be conducted on the interior walls. Are there any experts here who could provide advice or guidance on how we should approach the developer about this?
Thank you in advance!
Best regards
Langnese
B
Bauexperte26 Jul 2011 11:27Hello,
As a "homeowners’ association," hire an external building surveyor or expert in the relevant field and involve them in all discussions between the developer and the owners.
On your own and without expertise, you are otherwise defenseless against the developer’s statements without an appropriate counterbalance.
Best regards
Langnese schrieb:
Are there any experts here who might be able to comment on this or give us advice on how to approach the developer?
As a "homeowners’ association," hire an external building surveyor or expert in the relevant field and involve them in all discussions between the developer and the owners.
On your own and without expertise, you are otherwise defenseless against the developer’s statements without an appropriate counterbalance.
Best regards
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