Siniat GTEC Thermal PIR Board

Colour:

Ivory on the face.

Material:

• Aerated calcium sulfate di-hydrate, enclosed inside liners made from recycled wastepaper with bound edges. Core and papers are bonded with starch. A cream-coloured, polyisocyanurate (PIR), foam-insulated board is bonded to the rear.

• Various thicknesses of polyisocyanurate (PIR) are factory-bonded to 12.5 mm board using PVA adhesive.

Edges:

Tapered edges running down the two longer sides. Edges are adhered together.

Size:

2400 x 1200 mm.

Weight:

• 37.5 mm board: 24.2 kg.

• 52.5 mm board: 24.8 kg.

• 62.5 mm board: 25.1 kg.

• 72.5 mm board: 25.3 kg.

• 82.5 mm board: 25.9 kg.

Jointing, finishing and painting:

the board should be jointed and finished with GTEC Jointing Systems. Boards are suitable for gypsum finishing plasters manufactured to BS EN 13279-1:2008. The boards must be primed with GTEC Universal Sealer prior to being decorated.

Vapour control layer:

all GTEC Thermal PIR boards are manufactured with enhanced vapour resistance.

Fixing:

use dabs of GTEC Universal Bonding compound (two additional nailable plugs required for fire safety), GTEC Wall Lining Adhesive, GTEC Shallow Wall Channels (MFCS) or the GTEC Dryliner system.

Technical characteristics:

• Fire, acoustic, thermal and duty performance dependent on the whole system. See Siniat Drywall Manual for Siniat system performances.

• Reaction to fire: Euroclass B-s1, d0.

• Moisture content: <2%.

• Thermal conductivity, λR: PIR insulation: 0.022 W/m·K, plasterboard: 0.19 W/m·K.

- Mass:

• 8.4 kg/m² for 37.5 mm board.

• 8.6 kg/m² for 52.5 mm board.

• 8.7 kg/m² for 62.5 mm board.

• 8.8 kg/m² for 72.5 mm board.

• 9.0 kg/m² for 82.5 mm board.

- Thermal resistance, R:

• 37.5 mm board: 1.20 m²K/W.

• 52.5 mm board: 1.89 m²K/W.

• 62.5 mm board: 2.34 m²K/W.

• 72.5 mm board: 2.79 m²K/W.

• 82.5 mm board: 3.25 m²K/W.

- Water vapour resistance:

• 37.5 mm board: 533 MN·s/g.

• 52.5 mm board: 396 MN·s/g.

• 62.5 mm board: 381 MN·s/g.

• 72.5 mm board: 276 MN·s/g.

• 82.5 mm board: 242 MN·s/g.

- Flexural strength (to BS EN 520):

• Longitudinal breaking load: ≥550 N.

• Transverse breaking load: ≥210 N.