- Variants
- 2
- Thickness range
- 100–125 mm
- Documented EI
- EI 90
- Documented Rw
- 50–52 dB
DECISION SHEET
When to choose W382
Best suited to
Extreme-moisture areas requiring two cement boards per side and a more robust build-up than W381.
Compare first with
W381 saves thickness with one board per side; W386 is preferable where a double frame is needed for extensive services.
Critical site checks
- ✓For certified fire-rated solutions, the documented W382 maximum height is 4 m.
- ✓Form door openings with 2 mm reinforced profiles and AQUAPANEL Maxi TB screws.
- ✓Waterproof water-exposed faces and never replace AQUAPANEL joint treatment with gypsum products.
Available W382 variants
Choose a specific build-up to open the quantity report with that system already loaded. Only performance values published by the associated technical source are displayed.
| Build-up | Thickness | Boards | Frame | Fire | Acoustic | Max. height | Calculate this variant |
|---|---|---|---|---|---|---|---|
| W382 · 100 mm2 × boards per face | 100 mm | 2 × Knauf AQUAPANEL Indoor 12,5 | Knauf stud and channel 50 | EI 90 | Rw 50 dB | 3 m | Calculate this variant |
| W382 · 125 mm2 × boards per face | 125 mm | 2 × Knauf AQUAPANEL Indoor 12,5 | Knauf stud and channel 75 | EI 90 | Rw 52 dB | 3 m | Calculate this variant |
How to choose a W382 variant
Compare stud width, total thickness, EI, Rw and thermal transmittance. Do not replace AQUAPANEL joint accessories with gypsum-system products.
Current technical source loaded
W38I.es Knauf AQUAPANEL Indoor (2025) · 2025-08The Ferragut quantity report prepares
- ✓Boards on both faces
- ✓Compatible studs and channels
- ✓Cavity insulation
- ✓Screws for every layer
- ✓Tape, compound and acoustic seal
- ✓Barrier, corrosion-resistant screws and AQUAPANEL joint treatment
What this system family contains
The composition comes from the loaded variants and identifies the work items involved before preparing the quantity report.
Questions about Knauf W382
What is the Knauf W382 system?
W382.es uses two AQUAPANEL Indoor boards per side on a metal frame. It is intended for extreme-moisture areas that also require a more robust build-up.
Which W382 variant should I choose?
Compare stud width, total thickness, EI, Rw and thermal transmittance. Do not replace AQUAPANEL joint accessories with gypsum-system products.
What does the calculator quantify?
The tool estimates complete purchase units for boards, profiles, insulation, screws, joint treatment and accessories compatible with the selected build-up.
Where does the technical data come from?
Performance data comes from W38I.es Knauf AQUAPANEL Indoor (2025), revision 2025-08. Values that are not published are not inferred.
