Roof Moisture Testing:  Predictive Testing for Your Roof!

Whether you are performing routine roof maintenance, trying to stop persistent leaks or planning for your roof’s future, our roof moisture survey is always your starting point.

Our wide array of test instruments assures unmatched accuracy.

The primary measure of how well your roof is performing is how much moisture is getting through the membrane. Moisture penetration means that the roof is deficient and, if not repaired, will fail. When we determine where the moisture is accumulating, the identification of the failed component is often obvious. We can find and prevent a developing problem or, we can diagnose and enable repair of an existing problem. Management can make informed decisions on whether the roof has reached the end of its useful service.

You can be confident of this: If water is getting into your roof, the roof will be damaged, will fail and will have to be replaced. This series of events is avoidable through the use of periodic roof moisture surveys.

Our Tests

Just like there is no single perfect roof system or material, there is also no single perfect roof moisture test. Different roof systems and different weather conditions require different types of moisture tests to ensure successful results.

Infrared gives pinpoint location and 100% roof coverage.

There are three primary tests: infrared, nuclear and capacitance. We provide them all. Some roofs respond best to short wave infrared testing. Others respond best to long wave infrared testing. We have that covered too. In short, if moisture testing can be conducted, we will have the tools to ensure dependable results.

Mid Atlantic Infrared’s Unmatched Accuracy

We use multiple moisture tests on every roof we examine. As a result, each instrument checks the results of the others. Where roof conditions change, we have the right instrument to provide localized testing on a complex roof system.

We provide absolute verification of our results by taking core samples of the roof materials. Delmhorst and gravimetric testing of the core samples determine the location and quantity of moisture in the roof system.

Mid Atlantic Infrared Offers Two Types of Moisture Surveys

Aerial Surveys use infrared from a helicopter to identify wet areas on very large roofs or groups of roofs. Following the aerial survey, ground based verification is conducted using nuclear, capacitance and core tests. For large roof areas, these surveys offer substantial cost savings.

Roof Top Surveys are the most accurate. We use multiple instruments, so we can respond to any condition on the roof. We obtain core samples to verify conditions as we go. The location of all wet areas is marked directly on the roof, facilitating repairs.


Only nuclear testing will work on this ballasted EPDM membrane. Numerous punctures were found by the survey. Readings are taken at 10 foot intervals.

This was an acceptance test on a new roof. Modified bitumenover isocyanurate. Infrared testing found no moisture. The capacitance test found numerous areas of interply moisture. Capacitance is the only test that can identify interply moisture. This often occurs when proper interply adhesion is not achieved.
This was an acceptance test on a new roof. The roof was EPDM over Densdeck and tapered isocyanurate. Infrared and nuclear testing were used (capacitance cannot be used on EPDM). The infrared test can easily find wet Densdeck but will not readily detect wet isocyanurate – particularly at lower insulation layers. The nuclear test can find wet isocyanurate beneath dry Densdeck. In many areas the Densdeck was dry and the underlying insulation was wet.