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Gypsum Board 29 mm
29 mm gypsum board is a 9 mm board with about 20 mm of EPS foam bonded to the back, giving ceiling and insulation in one sheet. For top-floor and attic ceilings and rooms where you want lower AC bills. Gyproc ThermaLine, standard and moisture-resistant, 120x240 cm; 44 and 59 mm also available.
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What is 29 mm gypsum board?
29 mm gypsum board is a 9 mm board with about 20 mm of EPS foam bonded to the back, so one sheet is both the ceiling and the insulation. It cuts heat coming down from the roof, which suits top-floor and attic ceilings that get hot every afternoon.
Products and uses
- Gyproc ThermaLine 29 mm, standard and moisture-resistant
- 44 and 59 mm versions for more insulation, in heat-resistant board
- For T-bar ceilings, use ThermaTile in heat-resistant T-bar tiles
Benefits
- Ceiling and insulation in one sheet, saving labor
- Cooler rooms and lighter AC load
- Installs on standard drywall framing with longer screws
- Foam faces up toward the roof, gypsum faces the room
Why buy 29 mm board at OneStockHome
We stock Gyproc ThermaLine in every thickness with framing and 50 mm+ drywall screws, with per-sheet prices and nationwide delivery.


