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Common Water Issue in BC
Green Roof / Living Roof Leaking — Membrane Detection
Green roofs are increasingly popular in BC but present unique leak detection challenges. The growing medium and vegetation hide the waterproofing membrane, making leak source identification difficult.
Possible Causes
- •Puncture in waterproofing membrane during installation or maintenance
- •Failed membrane seam or lap joint
- •Leak at roof penetration for drain or irrigation
- •Root penetration through membrane over time
- •Overloading causing deflection and membrane stress
Recommended Steps
- 1Observe leak timing relative to irrigation or rainfall
- 2Document leak location in the ceiling below for reference
- 3Do not disturb green roof growing medium until detection is complete
- 4Call professional leak detection with electronic membrane testing (ELD) capability
- 5Electronic leak detection is most effective for green roof membrane location
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Need Professional Help?
Don't let a small leak become a big problem. Contact LeakInspections.ca — a division of Anyleak.ca and Leak.ca — for expert diagnosis.