Leaking external house wall


Old 05-28-15, 06:05 AM
Thread Starter
Join Date: Nov 2014
Location: Taiwan
Posts: 14
Leaking external house wall


The exterior walls of our house here in Taiwan have had some pebble dashing applied to supposedly make them more waterproof.

Here is a picture of the front of our house:

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Here is a picture of the pebble dashing up close (millipede included as a bonus) :

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The waterproofing hasn't worked. After heavy rain this week the inside walls have started bubbling up with a serious damp problem:

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This has happened on every floor of the house.

Does anyone know what my options are here? Is it possible to put a waterproof coating over the pebble dashing? Does all of the pebble dashing need to be removed and a new coat applied?

Any help would be appreciated.

Many thanks,

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Old 05-28-15, 06:44 AM
Thread Starter
Join Date: Nov 2014
Location: Taiwan
Posts: 14
Could it be that this is a stucco coating and not pebble dash?
Old 05-28-15, 09:57 AM
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Does this happen on all exterior walls? If it's just one wall or area of the building I would start at the top with the roof and flashing and trim around windows looking for any potential leak points.

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