The Tolko Industries sawmill on Otter Lake Road is a working industrial facility where the roof sees constant sawdust and debris accumulation. Tolko retained Pinpoint to determine the true extent of moisture intrusion ahead of budgeting for repairs, scanning the full roof despite core-cut restrictions from suspected asbestos content.
Pinpoint scanned the full roof using an RWS roof scanner, Tramex Dec Scanner, and Moisture Encounter MEX5, cross-verified with a DJI Mavic 3 Enterprise thermal drone pass after sunset. Readings were marked H/M/L directly on the membrane. Suspected asbestos in the roofing materials ruled out core-cut verification — findings rely on cross-checked non-destructive scanning.
Moisture scanning and thermal imaging together confirmed 65%+ moisture content across the roof — the membrane is in failed condition. High readings clustered around drains, penetrations, and prior repair patches, matching heat retention visible in the nighttime thermal pass. On the surface, the team documented a rusted and broken parapet, a missing drain strainer and plumbstack, cracked and delaminating flashing at drains, and heavy sawdust accumulation actively accelerating deterioration.
Given the confirmed saturation and failed membrane condition, Pinpoint recommended repairing roof defects before the onset of fall weather to limit further water intrusion, followed by full roof replacement planning — restoration is not a viable option at this stage. Given the suspected asbestos content, replacement work should be scoped with a qualified abatement contractor before removal begins.
To discuss a moisture survey, infrared scan, or capital roof plan for your facility, reach the Pinpoint team directly.
pinpointinspections.ca