TL;DR
Dimple drainage board is a tough high-density polyethylene membrane stamped with raised dimples, hung against a foundation's exterior so water falls freely down the air gap the dimples create and into the footing drain instead of pressing against the waterproofing. The same product family works inside as a subfloor underlayment that isolates basement flooring from slab moisture, and as a wall layer behind interior drainage systems.
What it means
Dimple drainage board is a tough high-density polyethylene membrane stamped with raised dimples, hung against a foundation's exterior so water falls freely down the air gap the dimples create and into the footing drain instead of pressing against the waterproofing. The same product family works inside as a subfloor underlayment that isolates basement flooring from slab moisture, and as a wall layer behind interior drainage systems. On an exterior waterproofing quote it appears as the protection and drainage layer over the applied membrane, terminated with a cap strip at grade.
Where it sits in the glossary
Dimple drainage board is part of the Trade jargon group inside the ProFix Directory glossary. Browse every term in this category from the glossary index.
Why Ohio homeowners should know it
This is a term Ohio homeowners encounter when reading contractor quotes, hiring paperwork, or inspection reports. Understanding it well enough to ask one good follow-up question is usually all the protection a homeowner needs.
ProFix Directory keeps definitions short on the index page and saves the longer context — Ohio-specific rules, where the term comes from, and which ProFix tools touch it — for these per-term pages so the term is easy to cite and easy to share.
ProFix tools that touch this term
See also
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