Applications
Where Walls Fail, and What Holds
Walls fail differently than roofs. A roof sheds water; a wall holds it back — sometimes under hydrostatic pressure, sometimes for the life of the structure, always without an inspection window. DrySide liquid-applied membranes are built for that duty: seamless, fully-adhered waterproofing for below-grade foundations, block walls, and containment structures, specified and applied by people who do this for a living.
Below-grade foundation walls
Poured concrete foundations leak at predictable places: tie holes, cold joints, the footing cove, and shrinkage cracks. A DrySide membrane goes on the positive (exterior) side at 40+ wet mils, bridging hairline cracking and sealing tie penetrations into a continuous barrier that handles the hydrostatic head a saturated backfill delivers. Detail the cove and tie holes first, then spray or roll the field — the same detail-first logic as any waterproofing that has to work blind for fifty years. Compatible with dimple board and standard drainage composites; backfill protection is cheap insurance and we spec it.
CMU and block walls
Concrete block is a sponge assembled into a wall — porous face shells, porous mortar joints, and hollow cores that channel any water that gets in. Block takes membrane beautifully but drinks the first coat: expect roughly a third more material than smooth concrete, or use a block filler pass on rough-faced units. On older block foundations being retrofitted from the exterior, wire-cup the loose parge, patch the joints, and treat the first membrane coat as the new parge. For above-grade block — commercial back walls, stairwells, elevator pits from the blind side — the same system stops the wind-driven and capillary moisture that effloresces through paint every spring.
Containment and secondary structures
Sumps, planter walls, retaining walls with living space behind them, secondary-containment curbs, manure and washdown pits: anywhere concrete has to hold liquid in rather than out, the membrane works in reverse. The chemistry is immersion-tolerant once cured, and the seamless film has no laps to peel under constant head. For chemical containment, send us the exposure list — compatibility is a data-sheet question, not a guess.
Climate and service conditions
Freeze-thaw at grade line is the hardest service in the wall business: saturated, frozen, thawed, fifty times a winter. A membrane with 350% elongation rides the resulting micro-movement instead of cracking over it. The cured film is unaffected by soil chemistry, tolerant of the constant dampness of below-grade service, and — for the exposed strip between grade and siding — UV-stable enough that the detail coat doesn't chalk away where sunlight hits it.
Who we work with
DrySide sells through waterproofing contractors, foundation repair firms, and general contractors who self-perform. That's deliberate: below-grade waterproofing is unforgiving of learn-as-you-go, and a failed wall means excavation. If you're a homeowner with a wet basement, use the contact form anyway — we'll connect you with an applying contractor rather than sell you a pail and a prayer.
Positive Side, Every Time We Can
Waterproofing works best where the water is: on the exterior (positive) side, membrane against soil, keeping the wall itself dry instead of managing water that already got through. Negative-side coatings have their place — occupied basements nobody will excavate — but they fight physics all day.
When you have the excavation open, that is the one chance to do it right: detail the footing cove and tie holes, build the field to 40+ wet mils, protect it, and backfill over a wall that will never need the shovel again. DrySide is engineered for exactly that positive-side, apply-once service.
Detail-first checklist we ship with every foundation order:
- Footing cove — reinforced detail coat
- Tie holes and honeycombs — patch, then detail
- Cold joints and crack networks — banded detail coat
- Pipe penetrations — brushed collar at double build
- Field — 40+ wet mils in one or two passes
- Grade-line termination — UV-stable exposed strip
- Protection board or dimple sheet before backfill
In the Field
Have a wall in front of you?
Send substrate, square footage, and depth below grade — technical replies with a system and coverage math.
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