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Home / Air Leak Testing Buying Guide

Air Barrier Leak Instruments Buying Guide

BlastOne, your trusted partner for inspection instruments, offers the innovative PosiTest® AIR Leak Detector for efficient air and water leak detection in building envelopes. This portable, hand-held tool simplifies the process of identifying leaks in various materials, including single and two-ply membranes, liquid-applied membranes, and more.

The PosiTest® AIR Leak Detector conforms to ASTM E1186, a standard test method for determining air leakage performance of building envelope assemblies. This ensures the accuracy and reliability of your leak detection results, meeting industry standards for building envelope performance.

PosiTest Air

Quickly and easily detect air and water leaks in building envelopes and rigid air barrier systems. Ideal for testing penetrations (fasteners, masonry ties, etc.) and continuity of joints and seams in rigid air barrier systems.

Benefits

Simple to Use: The PosiTest® AIR Leak Detector comes with everything you need to get started, including free PosiSoft Desktop Software for data analysis

Accurate Results: The high-accuracy pressure sensor and internal memory (storing 200 test results) ensure reliable data that meets ASTM E1186 standards

Durable Construction: This portable, lightweight tester is built to withstand tough jobsite conditions with its dustproof, waterproof enclosure and long-lasting rechargeable batteries

Versatile Applications: Test for air and water leaks in a wide range of building envelope materials, including membranes, sprayed foam, and metal liners

Improved Building Performance: Identify leaks early on to prevent moisture damage, improve energy efficiency, and ensure building envelope integrity

Disadvantages

User Dependence: Proper test procedures and interpretation of results require user training and experience

Not Real-Time Visualization: The PosiTest® AIR Leak Detector relies on pressure readings, not offering a real-time visual representation of the leak location

For use with…

  • Single and two-ply membranes
  • Liquid applied membranes
  • Sprayed Polyurethane Foam (SPF)
  • Boardstock
  • Metal Liners
  • Exterior Insulation and Finish Systems (EIFS)
  • EPDM roofing systems
  • Waterproofing and more

Made in USA flag with black text below

Conforms to ASTM E1186

Product Specifications

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Tester comes complete with shoulder strap, high impact polycarbonate test chamber, durable 5′ (1.5 m) hose with quick disconnect couplings, built-in rechargeable NiMH batteries with charger (AC power supply), 8 oz. test solution with dauber (Qty. 4), instruction manual, USB cable, PosiSoft Desktop Software (available as a free download), Certificate of Calibration traceable to NIST, one (1) year warranty and soft-sided nylon carry case.

Specifications
Information
Pressure Differential Range
100 – 900 Pa
Rate of Depressurization
5 – 30 Pa/Sec
Test Chamber Size
Ø16 in (40 cm) Base
Resolution
1 Pa
Accuracy
± (10% + 10 Pa)
Carry Case Dimension
38 cm (15 in) x 48.3 cm Ø (19 in)
Weight
3.8 kg / 8.5 lbs.
Shipping Weight
6.7 kg / 14.7 lbs.

How the PosiTest AIR Works

The portable, hand-operated PosiTest AIR Leak Tester tests the air barrier integrity of single, two-ply and liquid membrane systems, including air barriers, roofing systems, waterproofing and ground liners by locating leaks.

In accordance with ASTM E1186, the PosiTest AIR will indicate whether leaks exist in the test area. It is a simple Pass/Fail test.

1. Apply

Apply the PosiTest AIR Test Solution to the test area

2. Place

Place clear Test Chamber over the test area

3. Initiate

Initiate the test (depressurize the chamber)

4. Record

Store Test Result (optional)

The PosiTest AIR’s internal memory can store up to 200 test results which can be transferred to a PC using PosiSoft Desktop Software.

Test results include rate of depressurization, pressure differential limit, time duration and user-entered PASS/FAIL conclusion.

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Frequently Asked Questions

  • Does the PosiTest AIR include a certificate of calibration?

    The PosiTest AIR arrives fully calibrated and ready to measure. A long-form Certificate of Calibration showing traceability to a national standard is included at no additional expense. For organizations with re-certification requirements, the PosiTest AIR may be returned at regular intervals for calibration. DeFelsko recommends that our customers establish their instrument calibration intervals based upon their own experience and work environment. Based on our product knowledge, data and customer feedback, a one year calibration interval from either the date of calibration, date of purchase, or date of receipt is a typical starting point.

  • Does the PosiTest AIR include fixtures for testing corners or angled surfaces?

    The PosiTest AIR includes a dome test chamber. No other test chamber configurations are available from DeFelsko.

  • Can dish soap be used instead of the included solution?

    DeFelsko recommends the use of PosiTest AIR Test Solution only. Dish soap and other common soapy liquids don’t have the necessary viscosity and formulation to reliably create visible bubbles when encountering the types of air leaks that the instrument is designed to detect. Using such non-specific liquids may result in building envelope air leaks being missed. They also don’t comply with the ASTM E1186 standard as they will form bubbles when applied to the area being measured.

    Extensive research and development went into the formulation of our PosiTest AIR Solution. This proprietary high viscosity formulation ensures…

    • air bubbles properly form and are visible when an air leak is present – leaks don’t get missed!
    • air bubbles don’t form when solution is applied to test area (in compliance with ASTM E1186)
    • optimal results when measuring on vertical surfaces – test solution doesn’t flow away from the test area
    • proper test solution performance in cold environments down to -10° C/14° F (low temperature solutions available for measuring down to -20° C/-4° F

  • Can the solution included with the PosiTest AIR be used at low temperatures?

    The included solution is suitable for use in temperatures ranging from -10° C to 65° C. Low temperature fluid is available as an accessory item and is suitable for use between -20°C and 65°C.

  • What is the shelf life of the solution included with the PosiTest AIR?

    Based upon our observations, the test solution is completely shelf-stable and will not lose efficacy over time.

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