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Siniat GTEC Thermal PIR Board
Application

The board is used to provide high levels of improvement to thermal insulation in wall lining and roof applications. Consult local building regulations for use in external walls in buildings over 18 m.

Description

GTEC Thermal PIR Boards are suitable for a wide range of conversion or refurbishment projects that require a significant upgrade in the thermal performance. An additional vapour control layer reduces the risk of condensation.

Features and benefits:

  • 12.5 mm plasterboard, bonded to polyisocyanurate foam (PIR).
  • 40% thermal improvement over GTEC Thermal EPS Board.
  • Range of thicknesses between 37.5 and 82.5 mm.
  • The board complies with BS EN 520:2004+A1:2009 type A. Laminate complies with BS EN 13950:2014. The PIR insulation complies with BS EN 13165:2012+A2:2016.

Application:

The board is used to provide high levels of improvement to thermal insulation in wall lining and roof applications. Consult local building regulations for use in external walls in buildings over 18 m.

General information

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

Size

2400 x 1200 mm

Uniclass 2015

Pr_25_71_52_88 Thermal laminate gypsum plasterboardsPrimary

CAWS

K10/115 Metal stud partition system

K10/125 Metal stud partition system

K10/15 Lining on timber

K10/155 Wall lining system (metal studs)

K10/165 Wall lining system (metal framing)

K10/175 Wall lining system (metal furrings)

K10/185 Wall lining system (adhesive)

K10/205 Lining on timber

K10/220 Proprietary suspended ceiling system

K10/245 Ceiling lining on timber

K10/25 Lining on timber framed ceilings

K10/30 Metal stud

K10/35 Wall lining on metal framing

K10/41 Wall lining on metal furrings

K10/45 Wall lining on adhesive

K10/50 Suspended ceiling on metal framing

Specification data - Thermal laminate gypsum plasterboards

Product Reference

Siniat GTEC Thermal PIR Board

Thickness

37.5 mm

52.5 mm

62.5 mm

72.5 mm

82.5 mm

Standard product features

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.

Literature
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