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QA/QC & Testing

Flood Testing Waterproof Roofs in the UAE

Step-by-step flood test methodology aligned to ASTM D5957 — dam construction, water depth, hold time, and pre-flood QA checks for UAE roofs.

26 May 20265 min readTEXSA Engineering Team
Key takeaways
  1. 01Flood test is the final acceptance gate before overburden.
  2. 02Dam height, water depth, and hold time must follow ASTM D5957.
  3. 03UAE evaporation rates require early-morning execution and careful scheduling.
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Purpose

A flood test is the final, contractually binding acceptance check for a horizontal waterproofing membrane. Done correctly, it catches lap failures, pinholes, and detailing defects before overburden is installed.

Pre-flood preparation

  • Confirm DFT and pull-off results meet specification.
  • Plug drains and erect temporary dams 75–100 mm above membrane.
  • Notify occupants of areas below; protect vulnerable assets.

Conducting the test

  • Flood to minimum 25 mm and maximum 100 mm depth.
  • Hold for 24 hours (48 hours preferred on critical assets).
  • Inspect below for any sign of leak. Mark and rectify before re-test.
Tagsqa-qcflood testroofingastm
TE
Written by
TEXSA Engineering Team
Waterproofing & Protective Coatings Specialists
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