Specification

ManualsBrandsSchluter ManualsFlooringDitra 54 sq. ft. 3 ft. 3 in. x 16 ft. 5 in. x 1/8 in. Thick Uncoupling Membrane

INNOVATIVE SOLUTIONS FOR CERAMIC AND STONE TILE

Ceramic and stone tiles are durable, easy

to maintain, and hygienic, representing

the ideal surface coverings. However,

today’s lightweight construction

methods can make the installation of

hard surface coverings particularly

challenging. In order to protect the

integrity of the tile assembly, an

underlayment that performs multiple

functions is required.

Application and Function

6.1 Schluter

-DITRA and 6.1 Schluter

DITRA-XL are polyethylene membranes

with a grid structure of square cavities,

each cut back in a dovetail configuration,

and an anchoring fleece laminated to

the underside. The anchoring fleece is

embedded in thin-set mortar to provide a

mechanical bond to the substrate. Tile is

installed over DITRA or DITRA-XL using

the thin-bed method in such a way that the

mortar becomes mechanically anchored in

the square, cutback cavities of the matting.

Designed specifically for ceramic tile

and dimension stone installations,

DITRA and DITRA-XL serve as an

uncoupling layer, waterproofing

membrane, and vapor management

layer that accommodates moisture

from beneath the tile covering. Further,

DITRA and DITRA-XL perform all these

functions while still providing adequate

support/load distribution for the tile

covering. The combination of these

four essential functions allows for the

successful installation of tile over a wide

range of substrates, including plywood/

OSB, concrete, gypsum, heated floors, etc.

DITRA is 1/8" (3 mm) thick, which

minimizes tile assembly thickness and

reduces transitions to lower surface

coverings (e.g., carpet, engineered wood,

and vinyl). DITRA allows for ceramic tile

application over single-layer plywood or

OSB subfloors on joists spaced up to

19.2" (488 mm) o.c. DITRA-XL is 5/16"

(7 mm) thick, which permits even

transitions between tile and 3/4"-thick

hardwood flooring. DITRA-XL allows for

ceramic tile application over single-layer

plywood or OSB subfloors on joists spaced

up to 24" (610 mm) o.c.

Uncoupling

Tile has been successfully installed for

thousands of years by incorporating

an uncoupling layer, or forgiving shear

interface, within the tile assembly.

UNCOUPLING MEMBRANES

6.1 Schluter

-DITRA

UNCOUPLING, WATERPROOFING, VAPOR MANAGEMENT, AND SUPPORT/LOAD DISTRIBUTION

H = 5/16" - 7 mm

6.1 Schluter

-DITRA-XL

H = 1/8" - 3 mm

Summary of content (8 pages)

PAGE 1
UNCOUPLING MEMBRANES IN NOVATIVE SOL U TIO N S F O R C E RA M IC A N D S T O N E T I LE UNCOUPLING, WATERPROOFING, VAPOR MANAGEMENT, AND SUPPORT/LOAD DISTRIBUTION Ceramic and stone tiles are durable, easy to maintain, and hygienic, representing the ideal surface coverings. However, today’s lightweight construction methods can make the installation of hard surface coverings particularly challenging.
PAGE 2
U N C O U P LI N G MEM B R ANE S DITRA and DITRA-XL provide uncoupling through its open rib structure, which allows for in-plane movement that effectively neutralizes the differential movement stresses between the substrate and the tile, thus eliminating the major cause of cracking and delaminating of the tiled surface. Waterproofing DITRA and DITRA-XL provide reliable waterproofing in interior and exterior applications.
PAGE 3
U NCOUPLING ME M BRA N E S 313F (Detail D) in the Terrazzo, Tile and Marble Association of Canada (TTMAC) Specification Guide 09 30 00 Tile Installation Manual. Note: DITRA and DITRA-XL may be installed over existing vinyl floors (no cushioned or perimeter bonded vinyl). However, various steps must be taken to ensure a successful installation. Please refer to the Schluter®-DITRA Installation Handbook for details.
PAGE 4
U N C O U P LI N G MEM B R ANE S permanent protection for moisture-sensitive substrates, such as gypsum concrete and wood, used in heated floor applications. The open rib structure of the DITRA and DITRA-XL matting allows the residual moisture in the substrate to escape. This is particularly important for gypsum concrete since it must dry in order to gain strength. In addition, the free space beneath the matting limits thermal striping by promoting even heat distribution throughout the assembly.
PAGE 5
U NCOUPLING ME M BRA N E S DITRA or DITRA-XL and the ceramic or stone tile covering is required to reduce deflection and curvature of the sheathing between the joists. Please refer to the Schluter®-DITRA Installation Handbook for plywood/OSB underlayment installation guidelines. Exterior Installations It is recommended that DITRA and DITRA-XL be allowed to adapt to ambient air temperature before installing.
PAGE 6
U N C O U P LI N G MEM B R ANE S 8.1 Schluter®-KERDI-FLEX Item No. FLEX 125/5M FLEX 250/5M FLEX 125/30 FLEX 250/30 Waterproofing strip for use above movement joints Width 5" – 12.5 cm 10" – 25 cm 5" – 12.5 cm 10" – 25 cm Length Thickness 16' 5" - 5 m 16' 5" - 5 m 98' 5" - 30 m 98' 5" - 30 m 12 mil 12 mil 12 mil 12 mil 8.1 Schluter®-KERDI-KERECK-F Item No.
PAGE 7
U NCOUPLING ME M BRA N E S Schluter®-DITRA and Schluter®-DITRA-XL 10-Year Limited Warranty COVERAGE AND CONDITIONS: Subject to the conditions and limitations as stated hereinafter, Schluter-Systems* warrants that Schluter®-DITRA or Schluter®-DITRA-XL (the “Products”) will meet all composition and performance criteria for a period of ten (10) years from the date of purchase only when the Products are used and installed in accordance with the terms and conditions of the Schluter®-DITRA Installation Handbook
PAGE 8
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