Foundation dimple mat
Hi, in the article on dimple drainboard,
it describes how the dimples (presumably facing in) create an air space between the backfill and the foundation wall for water to freely flow. I’ve seen products that have the dimples facing out, with geotextile filter fabric facing out. Is this wrong? For example-
which says “dimples and filter fabric always face backfill”
what happens when water gets behind this kind of installation, can it still free-flow without the air gap?
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