Insulation melted away by the sun

  • Erstellt am 2025-07-10 15:59:28

Putz_Munter

2025-07-10 15:59:28
  • #1
Hello everyone,

we have a new building with ETICS and the top coat plaster was applied recently. Below the lift-and-slide window, a drainage channel still needs to be installed by the landscaper, so currently some insulation was visible there. In some areas, base coat plaster was applied on this surface, but not over the entire area.

I was very surprised when I noticed during the last site visit that the insulation has melted quite a bit in the spots where no base coat plaster was applied. I can only explain it by the strong sun exposure (this is the south side) causing it to melt.

Question: What should be done now? Does it need to be renewed or just "filled in"? Is this a defect or was the work possibly not done properly?

Attached are 2 pictures. The top coat plaster is the white droplets (for my taste, the work could have been cleaner), dark grey is the insulation, light grey is the base coat plaster.

Thank you very much!
 

Similar topics
14.06.2011New building: Which insulation is appropriate?14
10.07.2011Wall construction and insulation for Kfw 70 house, okay?19
28.10.201236 cm Ytong exterior wall, solid construction, mold formation, insulation37
22.09.2012Insulating prefabricated house with additional insulation, DIY, inexpensive styrofoam19
08.11.2012Insulation in the 70s compared to today, modern insulation, heating costs26
20.11.2012General questions about insulation10
14.01.2013Insulation / Vapor Barrier Top Floor Ceiling / Collar Beam, Open Ceiling14
25.06.2013Saddle roof/insulation into the ridge or up to/on the intermediate ceiling?10
01.07.2013Additional insulation in the Ytong basement (36 cm)14
08.08.2015Insulation wooden beam ceiling10
07.04.2014Planning attic conversion in new construction - heating, ventilation, insulation?14
25.07.2014Great house with some limitations. Access / insulation14
21.08.2014Insulation on upper floor concrete ceiling / roof by own work - vapor barrier?10
21.10.2015What type of attic insulation is sensible?12
12.08.2015Is insulation worth it beyond the new construction standard?34
27.09.2015Insulation with wood fiber vs. mineral wool11
11.09.2016Base plate - construction/insulation etc. - experiences please!10
11.10.2017Sealing on Styrodur insulation?14
13.09.2016Insulation under the floor slab EPS or XPS?12
14.11.2016Bathroom ventilation drips despite pipe insulation10

Oben