Tramex DS2 Roof Moisture Scanner for Leak Detection and Roofing System Assessment (Non-Destructive)

Detect water leaks with the Tramex Dec Scanner Roof Moisture Meter

Fast, non-destructive roof condition assessment

Quickly survey moisture levels in roofing and waterproofing systems using the Dec Scanner, which non-destructively measures electrical impedance per ASTM D7954. Perfect for warranty audits, quality control, ongoing maintenance, or before re-roofing or roof repairs.

How the Dec Scanner works

The Dec Scanner identifies and quantifies leaks in roofing systems. With three sensitivity ranges and penetration up to 6" (152mm), it can assess various roof membranes and insulation thicknesses. Immediate readings allow coverage of flat roof areas up to 100,000 sq. ft. in a single day.

Safe and easy to operate with no regulatory restrictions, the scanner uses a low-frequency electronic signal transmitted via a rubber mat electrode. The returned signal indicates moisture levels, which are converted into comparative moisture values. Simply scan across the roof to locate wet areas.

Operating procedure

Moisture detection can be done during installation, as part of routine maintenance, or before re-roofing. The lightweight and durable Dec Scanner is easy to transport. After identifying a dry reference area, select one of three sensitivity ranges and move the scanner across the roof. Continuous readings allow a detailed moisture map to be created and leaks traced to their source.

Range selection

The Dec Scanner’s adjustable calibration ensures precise readings. Choose the appropriate range for your roof type:

• Range 1 – Best for single-ply and thin roof coverings such as PVC and Hypalon, where moisture is near the surface.
• Range 2 – Suited for multi-ply built-up and modified systems, mineral-surfaced felts, or gravel surfaces with deeper moisture.
• Range 3 – Designed for thick roof coverings like mastic asphalt or stone-surfaced roofs.

Key Features

• ASTM D7954 compliant
• Non-destructive and safe to use
• Lightweight and portable
• Three sensitivity ranges for various roof membranes and insulation depths
• Ergonomic, easy-to-use controls
• Leak tracing and source identification
• Instant roof condition readings
• Fast coverage of large roof areas
• Operates during normal daylight hours
• More user-friendly than nuclear meters
• Dependable solid-state circuitry
• Rugged molded body
• Battery powered – 9 Volt PP3

To broaden your non‑destructive evaluation capabilities

Explore additional inspection tools that enhance building diagnostics. The Tramex Roof & Wall Scanner provides versatile moisture detection and mapping across both vertical and horizontal surfaces, ideal for tracing leaks and hidden moisture paths. For comprehensive roof system evaluation including quantitative moisture measurement and ambient condition logging, the Tramex Roofing Master Kit pairs multi‑mode scanning with probes and data capture to support detailed reporting. Additionally, the Tramex Building Survey Inspection Kit integrates non‑destructive moisture meters and relative humidity tools tailored for building envelope assessment beyond roofing surfaces.

Q&A

What types of roofs can the Dec Scanner inspect?

It works on single-ply, multi-ply, modified bitumen, PVC, Hypalon, mastic asphalt, and gravel or stone-surfaced roofs.

Do I need any special license to operate it?

No regulatory licenses are required; it is safe and easy to use for all users.

How fast can I scan a roof?

The Dec Scanner can survey up to 100,000 sq. ft. in a day, depending on roof complexity.

Can it detect moisture below the surface?

Yes, the three sensitivity ranges allow detection from near-surface moisture to deeper insulation layers.