Installation Guide

TESTING & CERTIFICATIONS 21
Product Evaluation
TESTING & CERTIFICATIONS
Schluter
®
-Systems is committed to providing reliable installation systems for ceramic and stone tile. As part of this commitment, we have
invested considerable resources in testing our products and obtaining certifications where applicable to provide our customers and local
code officials with relevant data that supports the efficacy of our systems. All the testing referenced below was performed by independent
laboratories.
Uncoupling and Support/Load Distribution
The method used to establish the overall performance of a tile assembly under loading is the ASTM C627 “Standard Test Method for
Evaluating Ceramic Floor Tile Installation Systems Using the Robinson Type Floor Tester.” The assembly is tested in cycles using a loaded,
revolving carriage. Load, wheel hardness, and number of revolutions vary with each cycle. Once a specified level of damage is exceeded,
the test is stopped. The TCNA Handbook for Ceramic, Glass, and Stone Tile Installation assigns performance levels to an assembly
based on the number of cycles successfully completed. The ratings include residential, light, moderate, heavy, and extra heavy, in order
of improving performance.
Assembly Notes:
1. All plywood and OSB subfloors were 23/32" (3/4" nom.) -thick; 11/32" (3/8" nom.) -thick OSB underlayment added for carrara marble test
2. DITRA-HEAT bonded to OSB with modified thin-set mortar (ANSI A118.11)
3. DITRA-HEAT bonded to concrete with unmodified thin-set mortar (ANSI A118.1)
4. Tile bonded to DITRA-HEAT with unmodified thin-set mortar (ANSI A118.1)
5. Polymer-modified cement grout (ANSI A118.7)
The test results above demonstrate that DITRA-HEAT performs extremely well under load while at the same time providing flexibility within
the shear plane.
Certifications
Heating cables
The DITRA-HEAT-E-HK heating cables sets are certified or listed to the following standards and usage:
• CAN/CSA-C22.2 No. 130-03 "Requirements for Electrical Resistance Heating Cables and Heating Device Sets" under usage
markings GXW for general use (G) with a wet rating (W), but specifically (X) for embedded indoor floor warming applications.
• UL 1673 "Electric Space Heating Cables" for installation in poured masonry floors within enclosed structures.
• ANSI/IEEE 515.1-2005 "IEEE Standard for the Testing, Design, Installation, and Maintenance of Electrical Resistance Heat Tracing
for Commercial Applications" for installation Type C embedded floor warming within enclosed structures.
Thermostat
The DITRA-HEAT-E-RS digital thermostats are certified or listed to the following standards:
• Certified to CSA C22.2 No. 24-93 (Reaffirmed 2003) “Temperature-Indicating and Regulating Equipment”.
• Listed to UL 873 “Temperature-Indicating and Regulating Equipment” 11
th
Edition, containing revisions through and including
April 18
th
, 2006.
Report Number Substrate Joist Spacing Tile Rating
Schluter
®
-DITRA-HEAT
TCNA-415-13 OSB 19.2" o.c. 12" x 12" porcelain Extra Heavy
TCNA-415-13 OSB 24" o.c. 12" x 12" carrara marble Light
TTMAC-UFT09-2013 Concrete N/A 12" x 12" porcelain Moderate
TCNA-415-13 Concrete N/A 2" x 2" porcelain Light
Certifications and listings may be accessed via our website at www.schluter.com