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WaterproofingCommercial

Planter Box Waterproofing Inspection & Test Plan

ITP for planter box waterproofing on podium and rooftop structures covering internal lining, root barriers, drainage layers, overflow provisions and long-term maintenance considerations.

12 checklist items
2 hold points
1 witness points
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Checklist Preview

Substrate Preparation

Requires sign-off
P/F
Concrete fully cured and surface prepared
P/F
Internal corner fillets installed
P/F
Drain outlet pre-formed and prepped

Waterproof Lining

Requires sign-off
P/F
Membrane system rated for permanent immersion
Hold
P/F
Membrane continuous to top of planter wall
P/F
Reinforcing band at all corners and junctions
Photo
P/F
Root barrier layer installed over membrane

Drainage & Testing

Requires sign-off
P/F
Drainage cell layer installed at base
P/F
Geotextile filter layer over drainage cells
P/F
Overflow outlet at correct height
P/F
Flood test satisfactory (48-hour minimum)
Hold Witness
P/F
Inspection access for drain maintenance noted

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