Schluter DITRA-XL 3'3" x 53'3" (175 ft²) - (DITRA-XL/175) - SPECIAL ORDER

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Product Overview

Schluter Ditra XL Membrane

***Special Order Item (Please allow for a 1-2 week lead time for special order items see our Shipping & Returns page for more info)

The XL membrane if 5/16" thick, which permits even transitions between tile and 3/4" thick hardwood flooring.  It allows for ceramic tile application over single-layer plywood/osb subfloors on joists spaced up to 24" o.c.

Function
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. 
 
Schluter-DITRA-XL is a polyethylene membrane with a grid structure of square cavities, each cut back in a dovetail configuration, and an anchoring fleece laminated to its underside. Schluter-DITRA is bonded to the substrate using thin-set mortar. The anchoring fleece on the underside of Schluter-DITRA-XL is engaged in the mortar to provide a mechanical bond to the substrate. Tile is installed over Schluter-DITRA-XL using the thin-bed method in such a way that the mortar becomes mechanically anchored in the square, cutback cavities of the Schluter-DITRA-XL matting. 
 
Designed specifically for ceramic tile and dimension stone installations, Schluter-DITRA-XL serves as an uncoupling layer, waterproofing membrane, and vapor management layer that accommodates moisture from beneath the tile covering. Further, DITRA-XL performs all these functions while still providing adequate support/load distribution for the tile covering.
 
a) Uncoupling
Tile has been successfully installed for thousands of years by incorporating an uncoupling layer, or forgiving shear interface, within the tile assembly. Schluter-DITRA-XL provides 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.
 
b) Waterproofing
Schluter-DITRA-XL provides reliable waterproofing in interior and exterior applications. Its polyethylene composition protects the substrate from moisture penetration, which is particularly important in today's building environment where most substrates are moisture sensitive.
 
c) Vapor management
The distinguishing feature of Schluter-DITRA-XL is the existence of free space created by the configured channels on the underside of the matting. The free space provides a route for excess moisture and vapor to escape from the substrate that could otherwise cause damage to the tile layer above. Thus, DITRA-XL effectively manages moisture beneath the tile covering.
 
d) Support/load distribution
When placed on a solid foundation, columns or pillars can support tremendous loads. The same physical principle applies to Schluter-DITRA-XL installations. Columnlike mortar structures are formed in the cutback cavities of the matting. Loads are transferred from the tile covering through these column-like mortar structures to the substrate. Since DITRA-XL is virtually incompressible within the tile assembly, the advantages of uncoupling are achieved without sacrificing point load distribution capabilities. The ability of DITRA-XL installations to support and distribute heavy loads while preserving the integrity of the tiled surface has been verified through extensive laboratory and field testing.

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