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Application

Suitable for use as a dry lining board laminate with significantly improved thermal insulation, it also has improved fire safety and improved moisture vapour resistance. Consult local building regulations for use in external walls in buildings over 18 m.

Description

GTEC Thermal K Boards provide good thermal performance for both new build and refurbishment projects. An additional vapour control layer reduces the risk of condensation.

Features and benefits:

  • 9.5 mm plasterboard bonded to phenolic foam.
  • Approximately 50% thermal improvement over GTEC EPS.
  • Range of thicknesses between 30 and 70 mm.

Application:

Suitable for use as a dry lining board laminate with significantly improved thermal insulation, it also has improved fire safety and improved moisture vapour resistance. 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. The back surface is white fibreglass tissue

Various thicknesses of phenol-formaldehyde foam (PF) are factory-bonded to 9.5 mm board using PVA adhesive

Size

2400 x 1200 mm

Uniclass 2015
Pr_25_71_52_88 Thermal laminate gypsum plasterboardsPrimary
Specification data - Thermal laminate gypsum plasterboards
Product Reference

Siniat GTEC Thermal K Board

Thickness

30 mm

40 mm

50 mm

60 mm

70 mm

Standard product features

Colour:

Ivory on the front, and orange-coloured foam board on the back.

Material:

  • Aerated calcium sulfate di-hydrate, enclosed inside liners made from recycled wastepaper with bound edges. Core and papers are bonded with starch. The back surface is white fibreglass tissue.
  • Various thicknesses of phenol-formaldehyde foam (PF) are factory-bonded to 9.5 mm board using PVA adhesive.

Edges:

Tapered down the long edges at the front. Edges are adhered together.

Size:

2400 x 1200 mm.

Laminate weight:

  • 30 mm board: 20.7 kg.
  • 40 mm board: 22.2 kg.
  • 50 mm board: 23.6 kg.
  • 60 mm board: 25.1 kg.
  • 70 mm board: 26.5 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 K 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 of Insulation, λR:

  • 25-44 mm: 0.021 W/m·K
  • ≥45 mm: 0.020 W/m·K
  • Plasterboard: 0.19 W/m·K.

- Mass:

  • 7.2 kg/m² for 30 mm board.
  • 7.7 kg/m² for 40 mm board.
  • 8.2 kg/m² for 50 mm board.
  • 8.7 kg/m² for 60 mm board.
  • 9.2 kg/m² for 70 mm board.
  • The density of the PF is 40 kg/m³.

- Thermal resistance, R:

  • 30 mm board: 0.92 m²K/W.
  • 40 mm board: 1.48 m²K/W.
  • 50 mm board: 1.95 m²K/W.
  • 60 mm board: 2.55 m²K/W.
  • 70 mm board: 3.05 m²K/W.

- Water vapour resistance:

  • 30 mm board: 667 MN·s/g.
  • 40 mm board: 500 MN·s/g.
  • 50 mm board: 400 MN·s/g.
  • 60 mm board: 333 MN·s/g.
  • 70 mm board: 286 MN·s/g.

- Flexural strength (to BS EN 520):

  • Longitudinal breaking load: ≥400 N.
  • Transverse breaking load: ≥160 N.

Literature
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