Installation Guide

TESTING & CERTIFICATIONS 27
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. Modified thin-set mortar (ANSI A118.11) to bond membrane to plywood and OSB
3. Unmodified thin-set mortar (ANSI A118.1) to bond membrane to concrete
4. Unmodified thin-set mortar (ANSI A118.1) to bond tile to membrane
5. High Performance 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.
DITRA-HEAT-DUO was found to be suitable for residential and light commercial traffic, depending on the substrate and tile chosen.
Waterproofing
DITRA-HEAT and DITRA-HEAT-DUO provide reliable waterproofing in interior applications. The products have been found to meet or exceed the
requirements of the American National Standard Specifications for Load Bearing, Bonded, Waterproof Membranes for Thin-set Ceramic Tile and
Stone Installation A118.10.
Sound Control
DITRA-HEAT-DUO reduces impact sound transmission through floor-ceiling assemblies and supports the covering to ensure a lasting installation.
DITRA-HEAT-DUO has been found to meet or exceed the requirements of the American National Specifications for Bonded Sound Reduction
Membranes for Thin-Set Ceramic Tile Installation A118.13.
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
Schluter
®
-DITRA-HEAT-DUO
TCNA-455-15 (1) Concrete N/A 12" x 12" porcelain Light
TCNA-455-15 (2) Concrete N/A 2" x 2" porcelain Residential
TNCA-455-15 (3) Concrete N/A 12" x 12" marble Light
TCNA-455-15 (4) Plywood 19.2" o.c. 12" x 12" porcelain Light
No. Report Test Floor Ceiling Results
Schluter
®
-DITRA-HEAT-DUO
1 NGC 7017176 ASTM E2179 8" Concrete N/A ΔIIC = 20
2 IN17-007 ASTM E492 8" Concrete N/A IIC = 50
3 IN18_001 ASTM E492 8" Concrete 9" wire suspended ceiling with gypsum board IIC = 67
4 IN17_059 ASTM E492 6" Concrete RSIC-1 clips with gypsum board IIC = 60
*All assemblies featured 12" x 12" porcelain tile over DITRA-HEAT-DUO installed with cement based thin-set mortars and grouts