ᐅ Waterproofing for Monolithic Wall Construction and Strip Foundations

Created on: 14 Apr 2020 15:37
M
Mephisto23
M
Mephisto23
14 Apr 2020 15:37
Hello,

I have a general question regarding moisture protection in monolithic wall construction.

According to the structural engineer, the strip footing and wall connection are planned as follows:

Technical drawing of a wall construction with Isokimm block, footing, and construction joint


A 36.5cm (14.4 inches) Ytong block is being used. Accordingly, the structural engineer says that the Isokimm block can be omitted.
Now to my main question: How do you prevent moisture from penetrating between the strip footing and the outside of the wall with this construction?
Do you attach perimeter insulation from the outside up to the top of the ground level or finished floor level (FFL)?
How do you prevent moisture from entering between the perimeter insulation and the wall from above?

Thank you for your feedback.

According to the Ytong construction manual, the build-up should look more like this:

Technical cross-section of a wall build-up with insulation, base, and screed.
Vicky Pedia14 Apr 2020 16:29
Apply two layers of waterproof slurry up to 5 cm (2 inches) above ground level.
M
Mephisto23
15 Apr 2020 08:46
Thank you for the information.
And then, from 5cm (2 inches) above the ground level down to the bottom edge of the strip foundation, should everything be coated with slurry, or what would be the correct procedure?
Should a drainage membrane or perimeter insulation be applied externally as additional protection?
Between the base slab/foundation and the masonry, there will be a horizontal damp-proof course to protect the masonry against rising moisture, right?
That would most likely be a bitumen sheet…