Nuclear Test Roof

Finally the locations of the anomalies and the test cuts are marked on a roof plan.

Nuclear test roof.

On ballasted roofs the gravel will be temporarily moved aside in order to place the nuclear gauge directly on the roof surface. In this electrical circuit the membrane acts as an isolator between the positively charged electrical plate on the membrane surface and the conductive deck which is considered the ground. The entire roof area is then wetted with water which creates an electrical plate at the entire top side of the membrane when charged by the test unit. The nuclear technology is able to distinguish between multiple levels of moisture and can operate in a wide range of weather conditions on any type of slope roof.

A nuclear roof moisture survey is the most accurate way to locate trapped moisture in ballasted roofs. Nuclear surveys provide excellent information at low cost and substantially improve your roofing options. Nuclear moisture detection is the only accurate method for testing ballasted roofs and the underlying sections of multiple construction roof systems. Nuclear backscatter methodology for flat roof inspections is a non destructive testing technique uses a radioactive isotope consisting of americium 241 with a beryllium target to emit high speed neutrons aimed at the roof.

Limitations are the fact that nuclear scans are far more labor intensive and expensive and the mapping provides anticipated wet areas as opposed to actual locations found with the infrared camera. Nuclear testing can also find standing water within the roof system and can read through multiple layers of insulation as far down as 8. During the testing a 5 x5 or 10 x10 grid is marked depending on what. The measurement method relies on the thermalization slowing of fast neutrons by the hydrogen atoms in water.

A nuclear roof moisture survey is typically con ducted on a 10 x 10 grid pattern across the en tire roof surface. Nuclear roof moisture surveys for flat roof inspections.