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| Brand Name: | SUNHOUSE |
| Model Number: | 1220x244m-12mm |
| MOQ: | 800 |
| Payment Terms: | L/C,T/T |
Green board drywall is the trade name for moisture resistant gypsum board — the default backing panel for tile in bathrooms, kitchens and other wet areas. It is a substrate, not a waterproof barrier, and its performance depends on the standard it is made to.
The green or blue facing identifies a moisture resistant core. It is a visual marker, not a performance grade. One supplier's green board may show 4% water absorption; another's may show 9%. Specification must therefore reference a standard — ASTM C1396 water-resistant gypsum board, EN 520 Type H1/H2, or AS/NZS 2588 — and the test report behind it.
| Area | Recommended Panel | Notes |
|---|---|---|
| Dry bathroom walls | 9.5 mm | Standard moisture resistant grade |
| Tub and shower surrounds | 12.5 mm | Behind a continuous waterproof membrane |
| Kitchen splashbacks | 9.5–12.5 mm | Seal all cut edges |
| Commercial kitchens | 12.5–15 mm | Vapour control plus sealed joints |
| Pool halls and spas | 12.5–15 mm | Full waterproofing system required |
Board, membrane and joint treatment work as one system. A reliable specification is: moisture resistant board mechanically fixed at reduced centres in wet zones, joints treated with setting compound, cut edges and fastener heads sealed, then a bonded liquid or sheet membrane applied before tiling. Leave out any element and the assembly is no longer what it claims to be.
Projects we have supplied across the Middle East, Southeast Asia and Australia fail for the same three reasons: board installed directly in a shower with no membrane, unsealed cut edges, and standard compound used where a setting compound was required. None of these are product defects, and all of them are avoidable with a written build-up and a pre-tile inspection.
Panels are produced to ASTM C1396 or EN 520 and tested for water absorption (ASTM C473), flexural strength, nail pull and surface burning characteristics. Documentation supports ISO 9001 factory certification, CE marking where applicable, batch test reports and pre-shipment inspection by SGS, BV or Intertek. Pre-production samples can be issued so your tiling contractor can test adhesive performance on the actual panel before mass production begins.
Yes. The board is a substrate; the membrane provides the water barrier. In showers this is essential, not optional.
Yes, with vapour control and sealed joints — or a fire rated panel if the assembly requires one.
12.5 mm for wall substrates in wet zones; 9.5 mm for ceilings and dry-zone walls.
No. Exposed cores absorb moisture; seal every cut edge in wet areas.
Request bathroom drywall samples, test reports or a container-load quotation based on your project schedule.
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