Structural waterproofing case study - underground garage

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Start of the construction showing the concrete raft and part wall construction.

Rear elevation detail showing the construction with the lower section of cavity to be used for the aqua channel.

Rear elevation.

Land drains installed at low level.

Starting to install the internal cavity drain membrane.

Detail: note this is a system known as a 'curtain hung'.

Construction detail.

Final internal membranes fixed.

Overall view.

External double drain membrane fixed and covering the land drain.

Construction detail.

Construction detail.

Brick plugs are installed and sealed to the internal membrane, ready to receive the wall ties. Aqua Channel laid to the base of membrane.

Aqua channel installed with part floor membrane laid. Over tape used to form wall/floor joint.

Construction detail.

Sacrificial DPM taped to floor membrane.

First course of internal blockwork.