Planter Box Root Penetration & Moisture Challenge
Planter boxes and landscaped areas on podiums expose waterproofing membranes to constant moisture, soil chemistry, fertilizers, and destructive root penetration. Root growth can penetrate standard waterproofing membranes, causing leaks that are difficult and expensive to repair.
Application Selection Guidance
Specify Geobit anti-root torch-applied bituminous membranes containing chemical root-inhibiting additives or high-build root-resistant liquid membranes. Always install a root barrier sheet, a drainage core board, and a non-woven geotextile filter fabric. This build-up prevents root reach while managing drainage and retaining soil moisture.
Apply seamless elastomeric polyurethane liquid membrane (Betocoat PU) or 2K cementitious slurry (Betoflex CM 588) across balcony slabs, podium decks, and planter boxes, ensuring 100% seamless continuity up parapet upstands.
Seal expansion joints, parapet flashings, and perimeter terminations with high-movement single-component polyurethane joint sealant (Betoseal 1PU, movement +/-25%) or 2-part polysulfide sealant (Betoseal PS PG).
Apply Geobit high-penetration bitumen primer followed by torch-applied APP or SBS modified bitumen waterproofing membranes (Betoflex 4P/5P or 4S/5S, 4mm-5mm thick) with 80mm side laps. Protect the cured membrane assembly using semi-flexible asphaltic or polypropylene protection boards (Betoboard / Betostick PB) prior to backfilling or screed placement.
Install non-woven needle-punched polyester geotextile filter fabric (Betotec 120-1000 GSM) as a protective cushion and drainage filtration layer above waterproofing membranes and under ballast.
Evidence & Case Studies
Specification Hubs
Matching System Products & Functional Roles
SBS Modified Bitumen Membrane - Plain
Request a system specification for your project
Request a direct calculation, material sample board, typical submittals, or project design validation for this assembly.
Request Technical Assistance