Terrace assembly B.5: Covering assemblies over waterproofing layers

Assemblies B: Ground-level terraces

Waterproofing, drainage, load distribution layer, bonded drainage and uncoupling

Schlüter-Systems terrace assembly Covering assemblies over waterproofing layers according to DIN 18531 © 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 seepage.

The passive capillary bonded drainage and uncoupling Schlüter-DITRA-DRAIN 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.

B.5 Covering assemblies over waterproofing layers according to DIN 18531

Schlüter-Systems section drawing of terrace assembly B.5 Covering assemblies over waterproofing layers according to DIN 18531 © Schlueter-Systems
Section drawing of terrace assembly B.5 Covering assemblies over waterproofing layers according to DIN 18531
  1. Capillary break layer
  2. Concrete slab
  3. Sloped screed
    An adequate slope (1.5–2%) is required for drainage to ensure that the structure
    is functional
  4. Structural waterproofing acc. to DIN 18531
  5. Schlüter-TROBA-PLUS
    Passive capillary surface drainage for the effective run-off of seepage water and full-surface ventilation.
  6. Load distribution layer
    Cement screed according to DIN 18560-2 or pervious mortar
  7. 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
  8. 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 terrace assembly B.5 Covering assemblies over waterproofing layers according to DIN 18531 © Schlueter-Systems
Section drawing of edge detail 1 for terrace assembly B.5 Covering assemblies over waterproofing layers according to DIN 18531
  1. Capillary break layer
  2. Concrete slab
  3. Sloped screed (1.5–2%)
  4. Structural waterproofing acc. to DIN 18531
  5. Schlüter-TROBA-PLUS
  6. Load distribution layer
  7. a) Schlüter-DITRA-DRAIN 4
    b) Schlüter-DITRA-DRAIN 8
  8. Ceramic tiles or natural stone pavers
  9. Schlüter-BARA-RT
    Make sure drainage is possible!

Edge detail 2

Schlüter-Systems section drawing of edge detail 2 for terrace assembly B.5 Covering assemblies over waterproofing layers according to DIN 18531 © Schlueter-Systems
Section drawing of edge detail 2 for terrace assembly B.5 Covering assemblies over waterproofing layers according to DIN 18531
  1. Capillary break layer
  2. Concrete slab
  3. Sloped screed (1.5–2%)
  4. Structural waterproofing acc. to DIN 18531
  5. Schlüter-TROBA-PLUS
  6. Load distribution layer
  7. a) Schlüter-DITRA-DRAIN 4
    b) Schlüter-DITRA-DRAIN 8
  8. Ceramic tiles or natural stone pavers
  9. Schlüter-BARA-RW
    Make sure drainage is possible!
  10. Eaves flashing

Wall connection detail

Schlüter-Systems section drawing of the wall connection detail for terrace assembly B.5 Covering assemblies over waterproofing layers according to DIN 18531 © Schlueter-Systems
Section drawing of the wall connection detail for terrace assembly B.5 Covering assemblies over waterproofing layers according to DIN 18531
  1. Capillary break layer
  2. Concrete slab
  3. Sloped screed (1.5–2%)
  4. Structural waterproofing acc. to DIN 18531
  5. Schlüter-TROBA-PLUS
  6. Load distribution layer
  7. a) Schlüter-DITRA-DRAIN 4
    b) Schlüter-DITRA-DRAIN 8
  8. Ceramic tiles or natural stone pavers
  9. Schlüter-DILEX-EK
  10. Schlüter-KERDI-KEBA

Door transition

Schlüter-Systems section drawing of the door transition for terrace assembly B.5 Covering assemblies over waterproofing layers according to DIN 18531 © Schlueter-Systems
Section drawing of the door transition for terrace assembly B.5 Covering assemblies over waterproofing layers according to DIN 18531
  1. Capillary break layer
  2. Concrete slab
  3. Sloped screed (1.5–2%)
  4. Structural waterproofing acc. to DIN 18531
  5. Schlüter-TROBA-PLUS
  6. Load distribution layer
  7. 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 terrace assembly B.5 Covering assembly over waterproofing layers according to DIN 18531 © Schlueter-Systems
Section drawing of the floor drain for terrace assembly B.5 Covering assembly over waterproofing layers according to DIN 18531
  1. Concrete slab
  2. Sloped screed (1.5–2%)
  3. Structural waterproofing acc. to DIN 18531
  4. Schlüter-TROBA-PLUS
  5. Load distribution layer
  6. a) Schlüter-DITRA-DRAIN 4
    b) Schlüter-DITRA-DRAIN 8
  7. Ceramic tiles or natural stone pavers
  8. Schlüter-KERDI-DRAIN-RRE
    Grate and frame set KD R10
    Drainage opening slots must be kept clear!
  9. Schlüter-KERDI-DRAIN-KDBV
    Floor drain set KD BV 50 MSBB