In this article we will consider in detail, step by step, the external
waterproofing of the wall of a newly built residential building 30 meters long.
The customer was sure that the external waterproofing of the wall was completed and he was
perplexed as to how rainwater penetrated into the building.
Indeed, if you look at the picture, everything looks beautiful: A waterproofing membrane is
applied to the wall, which means the underground part of the wall is waterproofed.

Since miracles do not happen, it is necessary to dig up and see what is underground.
As you can see, the distance between the wall and the fence is quite narrow; there is no place to store the
excavated soil, so the soil was loaded into a wheelbarrow and taken to a temporary storage location.

Waterproofing Melbourne | Internal Wall Waterproofing | Damp Proofing | Rising Damp | Waterproofing Rising Damp
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External Waterproofing | External Wall Waterproofing

What we see: The membrane is applied only to the brick that protrudes from the ground. The width of the
membrane strip is 80 mm. Below there is bare brick, holes, cracks, etc.



Waterproofing Melbourne | Internal Wall Waterproofing | Damp Proofing | Rising Damp | Waterproofing Rising Damp
| Internal Waterproofing | Lateral Damp | Garage Waterproofing | AWC Group| Penetrating Damp | Crack Injection |
External Waterproofing | External Wall Waterproofing

The customer got the answer to his question of how rainwater seeps into the house!
Conclusion: If you have a waterproofing membrane visible on your wall above ground level,
this does not mean that the underground part of the wall is waterproofed!
Always demand that the contractor provide a guarantee for the work performed!
First we need to remove this misunderstanding from the wall - a cheap membrane from Bunnings, applied
in one coat.

After the membrane is removed from the wall, it is necessary to clean the foundation-wall joint from the
cement mortar that fell down during the construction and wash the wall with a high-pressure
washer.

The surface must be prepared to the following condition:

Form a 45* angle fillet at internal corners between horizontal and vertical surface with rapid-setting
cementitious compound Sika Plug (Fast Setting Water Plug).
Plugging holes.



And only after this can the waterproofing membrane be applied


Backfilling.


The continuation of this trench is located on the neighboring
property.
We will not describe each step. The entire work sequence is the same.


Waterproofing Melbourne | Internal Wall Waterproofing | Damp Proofing | Rising Damp | Waterproofing Rising Damp
| Internal Waterproofing | Lateral Damp | Garage Waterproofing | AWC Group| Penetrating Damp | Crack Injection |
External Waterproofing | External Wall Waterproofing








The AGI-Pipe must be laid in accordance with the Building Code of Australia


Waterproofing Melbourne | Internal Wall Waterproofing | Damp Proofing | Rising Damp | Waterproofing Rising Damp
| Internal Waterproofing | Lateral Damp | Garage Waterproofing | AWC Group| Penetrating Damp | Crack Injection |
External Waterproofing | External Wall Waterproofing


Backfilling and cleaning of the area.


