Schluter®-BEKOTEC Modular screed system
The Schluter®-BEKOTEC family of products are lightweight modular screed systems that are used to create continuous screed surfaces without control joints or reinforcement and can also accommodate hydronic radiant heating tubes.
- Produce permanent flooring assemblies that are free from internal stresses by confining the shrinkage and curing stresses to smaller modules
- Controls deformations such as curling and continuous cracks that are common in traditional screeds
- Designed to be used for ceramic tile, natural stone, or other surface coverings
- Studded screed panel measure 1-3/8” (35 mm)-thick and is made of expanded polystyrene
- Format61 x 122 cm / 24 x 48 in #ENUSP
The cross-section of the assembly reveals a minimum screed thickness of 1-1/4" (32 mm) between the studs and 5/16" (8 mm) above the studs. This results in significant material and weight savings over traditional screeds. For example, a 1-1/4" (32 mm)-thick traditional mortar bed weighs approximately 15-lb/ft2 (0.72 kPa), while a BEKOTEC mortar screed weighs approximately 12 to 12.5-lb ft2 (0.57 - 0.60 kPa), representing a 15- 20% decrease. Material and weight savings compared to a 2" (51 mm)-thick mortar bed amount to approximately 50%.
The studs form a grid pattern, with a distance of 3" (76 mm) between studs to accept hydronic heating tubes 3/8" (10 mm) to 5/8" (16 mm) O.D. if a heating screed is to be installed. Since the screed mass to be heated is relatively small, the floor heating can be well regulated and operated at a low temperature range.
The modular screed system reduces impact sound transmission. Since it is a floating screed system, it is also possible to incorporate a variety of sound attenuation materials below the panel, allowing for even greater impact sound reduction.
Ceramic and stone tile is installed over the BEKOTEC modular screeds using the Schluter®-DITRA or Schluter®-DITRA-XL uncoupling membranes. Please refer to the Schluter®-DITRA Installation Handbook (detail D-C-TS for Portland cement-based screeds and detail D-G-TS for gypsum based screeds). Surface coverings not sensitive to cracking, such as parquet or carpet, can be placed directly over the screed as soon as the residual moisture has reached an appropriate level.