D.05

Wet-area partition

Tabique de zona húmeda
133 mm
Total thickness · Revision 01 · 2026-08
D.05 Wet-area partition SCALE 1:10
1 13 mm 2 15 mm 6 90 mm 7 5 mm 8 10 mm 3 25 mm 4 40 mm 5 25 mm 133 mm Int. · dry side Int. · wet side

Dashed layers sit inside the stud cavity, not in addition to it. Keyboard navigable with the arrow keys; the same data is published as a table in the layer schedule below.

Photographs

1 / 3

Layer schedule

D.05 · layer schedule · total 133 mm
Layer Material Thickness λ Function
1 Pladur plasterboard lining Gypsum board 13 mm — Internal finish to the dry side
2 Omega furring profile Cold-formed galvanised steel 15 mm — Fixing profile for the lining, with a service void
3 INSULTERM 600 in stud cavity Sprayed thermal-acoustic conglomerate 25 mm 0.138 W/m·K Encapsulation
4 Mineral wool in stud cavity Rock wool 40 mm 0.039 W/m·K Acoustic core ISOVER Alphatoit rigid rock wool panel, as in D.02. λD from the manufacturer's datasheet (FT_Alphatoit_ES, 14/03/2024), to EN 12667 / EN 12939.
5 INSULTERM 600 in stud cavity Sprayed thermal-acoustic conglomerate 25 mm 0.138 W/m·K Encapsulation, and the face the tiling is bonded to
6 C90 steel stud cavity Cold-formed galvanised steel 90 mm — Framing — the cavity contains layers 3, 4 and 5
7 Tile adhesive Cement-based tile adhesive 5 mm — Bonds the tiling direct to the sprayed face
8 Ceramic wall tiling Ceramic wall tile 10 mm — Wet-area finish
Total 133 mm

An em dash means the source document does not state that value; it is not a zero. Cavity-contained layers are indented — they sit inside the stud depth, so the column does not sum to the total.

The most distinctive detail in the set. Tiling is bonded directly to the sprayed INSULTERM 600 face — no board, no furring, no board joints or screw heads behind the tiling. That saves 28 mm on every wet wall, which is net internal area recovered on every bathroom in a scheme. At 133 mm it is the thinnest build-up Solid System publishes.

Calculated performance

D.05 · performance
Property Value Basis
U-value, bridging corrected 0.60 W/m²K EN ISO 6946, one-dimensional steady state, with a +20% bridging correction applied as an engineering estimate.
Self-weight 80 kg/m² Mass estimate from the layers and dimensions in the source document.
Traditional equivalent 129 kg/m² Derived from the published self-weight and reduction percentage.
Weight reduction −38% Self-weight against the traditional equivalent build-up.
Fire resistance (EI) Test programme in progress — contact technical department Awaiting laboratory test report
Airborne sound reduction (R_A) Test programme in progress — contact technical department Awaiting laboratory test report
Watertightness Test programme in progress — contact technical departmentBond strength testing to EN 1348 is in progress Awaiting laboratory test report

U-values are one-dimensional steady-state calculations to EN ISO 6946. Bridging correction is applied as an engineering estimate: +20% for walls, +15% for horizontal elements. 2D numerical analysis to EN ISO 10211 is in progress; values will be updated on completion.

Not yet stated

  • EIFire resistance · in test
  • R_AAirborne sound reduction · in test
  • watertightnessWatertightness · in test

Test programme in progress — contact technical department

Weight against traditional

Element Solid System Traditional Reduction
D.05 Wet-area partition 80 kg/m² 129 kg/m² −38%

Where to use it

  • Bathroom and kitchen partitions
  • Tiled wall zones outside direct-spray areas

Design notes

  • All plumbing on the tiled face must be set out before spraying. There is no chasing afterwards.
  • Bond strength testing to EN 1348 is in progress. For shower and direct-spray zones we currently specify a liquid-applied membrane behind the tiling.
  • 28 mm is recovered per wet wall against the traditional board-and-furring equivalent.

Downloads

DWG D.05 section drawing In preparation
PDF D.05 section drawing In preparation
CSV D.05 layer schedule