Waterproofing Planters

Waterproofing planters may appear less critical than in other areas however they often require a membrane to prevent dampness spoiling the aesthetic nature of the design. Where possible adequate drainage should be provided within the planter and the horizontal base, if used, should be laid to falls. Irrigation pipes may be required and consideration should be given to how to waterproof around these services. When waterproofing planters, the membrane in a planter should be protected against the potential for damage during backfilling and garden maintenance.

RIW Heviseal, a liquid applied bitumen solution, is UV resistant and can be used for waterproofing planters of both concrete or masonry. RIW Flexiseal is a high performance alternative, with its colour coded quality control system and excellent flexibility making it especially suitable for waterproofing planters that are made of masonry. RIW Flexiseal is particularly beneficial when applied onto complicated shapes/profiles and simplifies the detailing around irrigation pipes and other services.

RIW Toughseal may also be considered when a high degree of chemical resistance is required.

RIW Protection Boards should be used to protect the membrane against the backfilling and the potential for subsequent damage. A root barrier, in addition to the RIW Protection Board, may also be required.

RIW Cementseal, a high performance cement based waterproof coating that can be applied to both concrete and masonry structures to act as durable coating in waterproofing planters. The seamless and durable nature of the product negates the need for an additional root barrier.

(Identify the most appropriate RIW product(s) for your specific application from the text above and click on the product icon on the right to access the product page for more information and downloadable data sheets).

For more information about waterproofing planters please contact the RIW Technical Department.