ᐅ Mistakes Drilling into Sand-Lime Brick up to Exterior Insulation and Finish Systems (EIFS)

Created on: 18 Jun 2016 14:54
K
kevchock
Hello,
first of all: I am a construction layman. Here is my situation:
- The picture shows the bathroom in the attic

Bathroom shell with toilet frame, pipes, and green wall

- The wall is made of calcium silicate bricks
- In the center of the picture there is a mistaken drill hole that reaches all the way to the exterior-applied rigid foam insulation system (ETICS / external thermal insulation composite system), but does not damage it (visible through the hole)
- In front of this is the vanity stud wall made of drywall panels
- The drywall stud wall will be filled with insulation wool

Now the question:
Does this drill hole, if left unfilled, create a thermal bridge or is it unproblematic since the external insulation system is still intact?
- Would the airtightness then be compromised?
Thanks to everyone! 😉
Mycraft18 Jun 2016 16:37
That depends on the contractor... and judging by the appearance here, it seems to have been drilled through...
K
kevchock
18 Jun 2016 16:44
Okay, thanks.
K
kevchock
18 Jun 2016 19:55
I was at the house again. The scaffold anchors are not the issue; they are still in place and at a different height.

So, it’s still not a problem if one side is plastered and there’s external thermal insulation composite system (ETICS / EWI) on the outside?

Thanks and have a great rest of the weekend.
Mycraft18 Jun 2016 20:14
Yes, easy to fill and works well
S
Sebastian79
18 Jun 2016 20:34
It is more important to have the area behind the drywall taped and sealed – this is often overlooked and can damage the airtight layer.
T
toxicmolotof
18 Jun 2016 22:12
It definitely needs to be plastered or filled! Whether or not a drywall construction is installed.

Not just the hole, but all other mortar joints as well.