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See all stacks →Step 8: Common Failure Points and Field Fixes
Step 8 documents five common balcony waterproofing failures with root causes and approved field fixes. The guide covers membrane bubbles, lap edge fishmouths, transition leaks, drain leaks, and scupper edge leaks with detailed repair procedures.
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Summary
Step 8 documents five common balcony waterproofing failures with root causes and approved field fixes. The guide covers membrane bubbles, lap edge fishmouths, transition leaks, drain leaks, and scupper edge leaks with detailed repair procedures.
Tags
waterproofing · balcony · membrane · failure-analysis · field-repairs · construction
Key entities
membrane bubble or blister (concept, 0.95) · lap edge fishmouth (concept, 0.95) · transition leak at inside corner (concept, 0.92) · drain leak (concept, 0.93) · scupper edge leak (concept, 0.93) · SP1 primer (technology, 0.88) · cove bead (concept, 0.85)
Classification
reference · language en · status final
Provenance
claude-haiku-4-5 via @stacklist/be@0.1.0, confidence 0.85, 23 Sep 2026