ᐅ Waterproofing against hydrostatic pressure

Hello everyone,
I have recently bought a new house. Unfortunately, we have experienced water damage for the second time. The builder’s analysis showed that it is caused by hydrostatic pressure. He is now sealing the exterior of the house to prevent this.
We have a cavity wall construction. The builder is currently applying PCI Bareseal directly onto the brickwork (photos).
Is this sufficient?
Thank you

Phew, better late than never.
Try searching online for "the forgotten connection."
You will then see at which points it becomes critical.

The waterproofing at the bottom should ideally finish flush with the insulation under the bituminous membrane (if present).
A good drainage system around it is definitely essential as well...

Hello,
where exactly did the water penetrate? Just applying some sealant on the outside of the brickwork won’t make the inner wall more waterproof, right? Or did the water not actually get inside the house at all, and only the brickwork was wet?

Best regards,

Andreas

Tomorrow, water entered the house. The ground floor screed and similar areas were completely wet. I pumped out over 100 liters (26 gallons) from the heating distribution box.

Over 100 liters (26 gallons) pumped out? Probably several times that amount still absorbed in the screed? Sounds really bad... I hope the floor was professionally dried. There must be a medium-sized hole somewhere in the wall. Do you know exactly where the water came in? Are you already living there, or is this all happening before you move in?

Best regards,

Andreas

This is a case for a qualified expert who can review the planned load scenarios, waterproofing concepts, and their implementation on site. They can also assess any potential damage to screed, floor coverings, and masonry.