Concrete sleeper retaining walls do not require waterproofing in most residential applications — but they do require correct drainage. This guide explains when waterproofing adds value, what products are used, and why drainage is always the priority for long-lasting retaining walls in Australia.
A practical guide to retaining wall drainage in Australia — covering hydrostatic pressure, ag pipe, geotextile filter fabric, drainage gravel, weep holes, and the most common drainage mistakes that cause retaining walls to fail.
