31141 Wheel Ave #401, Abbotsford, BC V2T 6H2

  +1 (778) 552-7663  Sales@directmetal.ca

Commercial roofing · Diagnostic service

Commercial Roof Restoration & Coatings.

Find the probable entry point, understand the affected roof area and make the next decision with evidence. Direct Roofing investigates leaks on commercial flat, low-slope and metal roofs across the Fraser Valley and Lower Mainland.

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Tell us what you are seeing. For urgent leaks, call us directly for the fastest response.

The stain is evidence.

Not always the source

A complete commercial service

Water can travel before you see it.

On a commercial roof, water may move across insulation, deck flutes, structural members, vapour-control layers or service penetrations before appearing inside. A useful investigation connects interior evidence with the roof assembly and the conditions that trigger the leak.

Weather pattern

Wind direction, rain duration, freeze-thaw and ponding can change where water enters.

Assembly movement

Membranes, flashings, curbs and metal details move differently through temperature cycles.

Concealed routes

Insulation, steel deck and framing may redirect moisture far from the original defect.

Non-roof sources

Mechanical equipment, plumbing, wall assemblies and condensation can imitate roof leakage.

Commercial leak investigation process

From interior evidence to a defensible plan.

The scope is adjusted to roof type, weather, accessibility and how intermittent or concealed the problem is.
1

Intake & Triage

Urgency, building use, leak history, weather and access.

2

Interior Mapping

Visible moisture, ceiling grid, deck, equipment and affected areas.

3

Roof Review

Membrane, seams, drains, walls, edges, curbs and penetrations.

4

Focused Testing

Appropriate non-destructive or controlled methods where included.

5

Findings

Probable source, affected area, limitations and priorities.

6

Next Scope

Repair, monitor, maintain, restore or plan replacement.

Investigation methods

Use the right method for the roof and evidence.

Not every leak requires every test. Methods are selected according to the assembly, conditions, access and agreed scope.

Foundation

Visual Roof Assessment
Review membrane condition, laps, flashings, penetrations, drainage, perimeters and visible damage. Useful on every investigation; findings remain limited to visible and accessible conditions.

Interior

Failed Flashing

Record where water appears, ceiling and deck geometry, weather timing, spread and operational impact.
Useful on every investigation; findings remain limited to visible and accessible conditions.

Focused

Moisture Readings
Use suitable meters or localized review to compare suspect materials with surrounding areas. Readings support interpretation; roof composition and conditions affect results.

Conditional

Controlled Water Testing
Isolate details in a planned sequence when weather, access and the building condition make testing appropriate. Performed only where safe and authorized; not suitable for every roof or active emergency.

Specialized

Infrared or Moisture Survey
Broader non-destructive survey options may help identify anomalous areas in compatible assemblies. Effectiveness depends on roof construction, weather, timing and specialist scope.

Compatible assemblies

Electronic Leak Detection

ELD may be considered for compatible waterproofing systems with the correct conductive conditions.
Availability and suitability must be confirmed; it is not appropriate for every roof.

Common investigation zones

Six places commercial roofs often need scrutiny.

Leaks may reflect age, movement, drainage, weather, rooftop traffic or work performed by other trades.

01

Seams & Laps
Open, stressed, contaminated or damaged joins in membrane and sheet-metal systems.

02

Drains & Scuppers
Restricted flow, deteriorated details, poor transitions and recurring water concentration.

03

Curbs & Penetrations
HVAC curbs, pipes, vents, skylights, supports and later service openings.

04

Parapets & Walls
Terminations, caps, counter flashings, wall transitions and wind-driven rain exposure.

05

Perimeters & Edges
Wind pressure, movement, securement and roof-to-metal interfaces.

06

Traffic & Equipment
Punctures, compressed insulation, service damage and crowded rooftop work zones.
Investigation methods

Use the right method for the roof and evidence.

Not every leak requires every test. Methods are selected according to the assembly, conditions, access and agreed scope.

Cascadia Metals
Commercial leak investigation FAQs

Technical answers for better planning.

These answers set expectations without pretending every leak can be diagnosed from one quick glance.
A typical scope can include intake and leak-history review, interior mapping, accessible roof inspection, review of seams, drains, curbs, walls, penetrations and perimeters, photographs, probable-cause findings and recommended next steps. The proposal should define any testing or reporting included.
Yes. Water can travel across insulation, steel deck flutes, framing, vapour-control layers and mechanical penetrations before becoming visible inside.
Often, interior and roof evidence can identify probable areas during dry weather. Intermittent leaks may require monitoring, controlled testing or inspection during the weather conditions that trigger the problem.
Yes. Direct Roofing works across these common commercial membrane systems as well as commercial metal roofing. The investigation and repair method must suit the identified assembly.
Electronic leak detection may be considered for compatible assemblies and correctly prepared test conditions. Suitability, availability and whether specialist testing is required should be confirmed during scoping.
Keep people, inventory and electrical equipment away from the affected area when safe, and call 778-552-7663. Emergency work may prioritize temporary protection before permanent investigation and repair.
No. A localized defect may be repairable when the surrounding system is serviceable. Replacement planning becomes relevant when moisture, deterioration or repeated failures are widespread.
Yes. Available reporting can include roof-area photographs, visible conditions, probable entry zones, repair priorities and recommended next steps, depending on the approved scope.
Yes. Condensation, plumbing, HVAC equipment and wall assemblies can produce symptoms similar to roof leakage. Investigation should consider these alternatives rather than assuming every stain begins at the membrane.
Cost depends on roof size, access, building height, system type, leak complexity, interior access, testing needs, reporting level, urgency and weather conditions.
Yes. Share access windows, tenant restrictions, production schedules, safety procedures and sensitive interior areas during intake so the investigation can be coordinated appropriately.
Direct Roofing serves commercial properties throughout the Fraser Valley and Lower Mainland, including Abbotsford, Langley, Chilliwack, Surrey, Vancouver, Burnaby, Richmond, the Tri-Cities and the North Shore.
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