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PROJECT FILE

A FLAT ROOF AT THE END OF IT

Calgary · August 2026

  • MATERIALMODIFIED BITUMEN FLAT ROOF (ASSESSED, NOT REPLACED)
CALGARY-BASED · OPEN BOOKING
THE JOB

A Calgary venue with more than one failure: a roof that had reached the end. Ponding across the field with condensate discharging straight into it. Pitch pockets where the mastic had cracked away from the penetration. A seam at a curb standing open, which is a direct path in. And underneath, from inside the building, water staining along the deck ribs, which is what a few years of that looks like from below. Anyone can call a roof like this finished. What makes that useful to an owner or an insurer is showing the individual failures and how they connect, rather than an opinion at the bottom of a page.

WHAT WE DOCUMENTED

The deck shot from inside is the one that matters. A flat roof is assessed from above by habit, but staining on the underside of the deck is the record of how long water has been getting in. It is the finding that turns a maintenance argument into a replacement one.

Before

Ponding water on a commercial flat roof with condensate discharging onto the membrane
Condensate discharging straight into standing water.
Failed pitch pocket with cracked mastic on a modified bitumen flat roof
Mastic cracked away from the penetration.
Torn membrane corner at the base of a pitch pocket, with standing water around it
A torn corner at the pitch pocket, a direct path in.
Corroded pipe penetration sitting in ponded water on a flat roof
Water staining along the steel deck ribs, seen from inside
From inside: water staining along the deck ribs.
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