ᐅ Detached Garage Attached to House Wall – Plaster or Render?

Created on: 16 Feb 2017 10:01
F
flospeedy
Hello everyone,

We are currently building with Wienerberger Poroton blocks (T8). According to the planner and general contractor, the prefabricated garage will be placed directly against the house façade without applying plaster beforehand. They say that it is sufficient to properly waterproof the roof area between the garage and the house wall.

Is that really enough, or should the exterior wall also be plastered behind the garage?

Thank you and best regards,
Florian
T
Tihiddi
2 Mar 2017 08:55
We plastered the side where the garage is attached with adhesive and reinforcing mortar to make the wall at least somewhat watertight. The roofers then screwed a flashing profile onto the house to direct water from the roof over to the garage.
And the garage is, of course, not built directly against the house. There is a bit of space in between.