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Roof terrace assembly C.3: Thin covering assembly over waterproofing layers

Assemblies C: Roof terraces

DITRA-DRAIN for bonded drainage and bonded uncoupling over BEKOTEC-DRAIN screed on TROBA-PLUS drainage membrane

Schlüter-Systems roof terrace assembly C.3 Thin covering assembly over DITRA-DRAIN waterproofing for bonded drainage and bonded uncoupling over BEKOTEC-DRAIN screed on TROBA-PLUS drainage membrane © Schlueter-Systems

The waterproofing assembly, designed with a surface slope that meets the requirements of DIN 18531, protects the support structure against the penetration of water.

Schlüter-TROBA-PLUS is installed as a drainage membrane between the waterproofing layer and the load distribution layer (screed) to drain away water.

This load distribution layer is installed as a thin layer with the crack-free, non-buckling Schlüter-BEKOTEC-DRAIN system.

The passive capillary bonded drainage and bonded uncoupling Schlüter-DITRA-DRAIN is installed in thin-bed mortar between the screed and the tile covering. This results in broad ventilation of the top covering, which in turn promotes the quick and even drying/curing of the thin-bed mortar.

C.3 Thin covering assembly over waterproofing layers

Schlüter-Systems section drawing of roof terrace assembly C.3 Thin covering assembly over waterproofing layers © Schlueter-Systems
Section drawing of roof terrace assembly C.3 Thin covering assembly over waterproofing layers
  1. Cantilevered concrete slab
  2. Sloped screed
    An adequate slope (1.5–2%) is required for drainage to ensure that the structure
    is functional
  3. Vapour barrier acc. to DIN 18531
  4. Insulation
    Thickness according to requirements
  5. Structural waterproofing acc. to DIN 18531
  6. Schlüter-TROBA-PLUS
    Passive capillary surface drainage for the effective run-off of water and full-surface ventilation.
    Make sure drainage is possible!
  7. Schlüter-BEKOTEC-DRAIN
    Thin load distribution layer as a system for crack-free and functionally safe, floating screeds (cement screed CT-C25-F4 or pervious mortar)
  8. a) Schlüter-DITRA-DRAIN 4
    Bonded drainage membrane made of polyethylene, installed in thin-bed mortar, with the functions bonded drainage, ventilation and bonded uncoupling
    b) Schlüter-DITRA-DRAIN 8
    Bonded drainage membrane specially designed for large areas and staircase constructions.
  9. Ceramic tiles or natural stone pavers
    Installation – also large formats – with a dry-setting, water and weather-resistant thin-bed mortar

Edge detail 1

Schlüter-Systems section drawing of edge detail 1 for roof terrace assembly C.3 Thin covering assembly over waterproofing layer © Schlueter-Systems
Section drawing of edge detail 1 for roof terrace assembly C.3 Thin covering assembly over waterproofing layer
  1. Concrete slab
  2. Sloped screed (1.5–2%)
  3. Vapour barrier acc. to DIN 18531
  4. Insulation
  5. Structural waterproofing acc. to DIN 18531
  6. Schlüter-TROBA-PLUS
  7. Schlüter-BEKOTEC-DRAIN
  8. a) Schlüter-DITRA-DRAIN 4
    b) Schlüter-DITRA-DRAIN 8
  9. Ceramic tiles or natural stone pavers
  10. Schlüter-BARA-RT
    Make sure drainage is possible!
  11. Schlüter-BARA-RTK
  12. Schlüter-BARIN
  13. Edge plank

Wall connection detail

Schlüter-Systems section drawing of the wall connection detail for roof terrace assembly C.3 Thin covering assembly over waterproofing layer © Schlueter-Systems
Section drawing of the wall connection detail for roof terrace assembly C.3 Thin covering assembly over waterproofing layer
  1. Concrete slab
  2. Sloped screed (1.5–2%)
  3. Vapour barrier acc. to DIN 18531
  4. Insulation
  5. Structural waterproofing acc. to DIN 18531
  6. Schlüter-TROBA-PLUS
  7. Schlüter-BEKOTEC-DRAIN
  8. a) Schlüter-DITRA-DRAIN 4
    b) Schlüter-DITRA-DRAIN 8
  9. Ceramic tiles or natural stone pavers
  10. Schlüter-DILEX-EK or Schlüter-DILEX-RF
  11. Schlüter-KERDI

Door transition

Schlüter-Systems section drawing of the door transition for roof terrace assembly C.3 Thin covering assembly over waterproofing layer © Schlueter-Systems
Section drawing of the door transition for roof terrace assembly C.3 Thin covering assembly over waterproofing layer
  1. Concrete slab
  2. Sloped screed (1.5–2%)
  3. Vapour barrier acc. to DIN 18531
  4. Insulation
  5. Structural waterproofing acc. to DIN 18531
  6. Schlüter-TROBA-PLUS
  7. Schlüter-BEKOTEC-DRAIN
    a) Schlüter-DITRA-DRAIN 4
    b) Schlüter-DITRA-DRAIN 8
  8. Ceramic tiles or natural stone pavers
  9. Schlüter-TROBA-LINE-TL
    Drainage opening slots must be kept clear
  10. Mortar spot

Floor drain

Schlüter-Systems section drawing of the floor drain for roof terrace assembly C.3 Thin covering assembly over waterproofing layer © Schlueter-Systems
Section drawing of the floor drain for roof terrace assembly C.3 Thin covering assembly over waterproofing layer
  1. Concrete slab
  2. Sloped screed (1.5–2%)
  3. Vapour barrier acc. to DIN 18531
  4. Insulation
  5. Structural waterproofing acc. to DIN 18531
  6. Schlüter-TROBA-PLUS
  7. Schlüter-BEKOTEC-DRAIN
  8. a) Schlüter-DITRA-DRAIN 4
    b) Schlüter-DITRA-DRAIN 8
  9. Ceramic tiles and natural stone pavers
  10. Schlüter-KERDI-DRAIN-RRE
    Grate and frame set KD R10
    Drainage opening slots must be kept clear!
  11. Schlüter-KERDI-DRAIN-KDBV
    Grate and frame set KD BV 50 MSBB
    Drainage opening slots must be kept clear!
  12. Sealing connection (on request)
  13. Extension piece for floor drains (on request)

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Sustainable system solutions for exterior floor coverings. Decorative, easy to clean and robust: tiles are the ideal floor covering for balconies and terraces. The well thought out assemblies of Schlüter-Systems create durable tile floors even outdoors. From bonded waterproofing to edge profiles and drainage channels – our system solutions for balconies and terraces are a perfect match. For renovation and new construction projects.
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