DITRA-Heat Testing & Alert Devices
Schluter requires 3 sets of 3 tests for a 10 year warranty, and a 4th test for an additional 5 years. We recommend 3 sets of tests at 3 different times during a wire installation. First set of tests while wire is ON THE SPOOL . Second set of tests AFTER SNAPPING INTO MEMBRANE . Third set of tests after tile install, but BEFORE GROUTING . TEST 1 | Resistance Test REQUIRED (Red to Black/White to Black) TEST 2 | Continuity Test REQUIRED (Red/Black to Ground or White/Black to Ground) TEST 3 | Insulation Test OPTIONAL (Red/Black to Ground or White/Black to Ground) TEST 4 | Sensor kOhm Test REQUIRED (Temp determines readout) We do this because a resistance alert device will only tell you one thing - has the wire been completely cut . There is further damage that can happen to a wire that will affect its performance and life without an alert device ever ‘screaming’ at you.