Have a roofer go on the roof with a running garden hose.
Tester for water leaks roofs.
Start at the lowest point that the water could be entering the roof system.
To determine if the water leak is in the house or outdoors only for homes with meters located at the street turn off the shut off valve on your home s main water supply pipe.
This astm testing procedure utilizes a calibrated spray rack with specific water pressures nozzles and distances to wet a wall with water at the rate of five gallons per square foot per hour.
This ultrasonic leakage detector is designed to locate the source of the ultrasonic emissions generated by gas or air leaks.
However astm d5957 specifically states the standard is not intended for use on building roofs astm d5957 references a maximum water depth of 100 mm 4 in.
The farther you move away from where the leak is showing on the interior the more time you will have to give each component to test for leaking due to the fact that if that component is leaking the water now has to run farther before it shows on the interior.
Electronic leak detection eld is a non destructive diagnostic used to identify water leak entry and areas of trapped water within a flat or low pitched roof construction.
After the rain has stopped and it s sunny outside examine the exterior of your roof to look for problem areas that may be causing the leak.
First have your roofer do a visual inspection for obvious areas where water could enter your home.
While in the attic if water is not visible on any wood look for water running down pipes that penetrate the roof and also look for water around the chimney.
Upon returning to the roof during daylight hours further analysis is conducted by the roofing contractor and infrared technician to determine the source of the moisture in that area.
With the ultrasonic transmitter it is applicable to air leaks around door window gaskets seals water leaks in roofs conduit pipe identification door trunk seals windshield leaks.
It is commonly referenced as the standard for flood testing roof systems.
This translates to an added live load during testing of 101 34 kg m 2 20 76 psf.
If necessary a non penetrating moisture meter can be used to confirm the presence of trapped moisture in the roof assembly.
Let the water run for 10 minutes to rule out each component from the bottom up.
Water depths and the associated live load at roof drains would be even higher.
Using electronically charged bristles it is an non intrusive roof leak detection method can identify problematic areas with pinpoint precision.
Mark any problem areas with chalk.
Astm e1105 and aama 501 2 test methods are good overall methods commonly used to test exterior walls sloped glazing and shallow pitched roofs to help identify leak sources.
