GUTEX Multiplex-Top

Product Description


  • Rain-tight sarking board.
  • In above-rafter constructions as sarking over GUTEX Thermosafe-homogen
  • All GUTEX Multiplex-top boards, except those that are 18 mm thick, are suitable for installation directly over rafters.
  • 18 mm GUTEX Multiplex-top boards are only suitable for use with above-rafter insulation.
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Technical Detail

Joint Type Tongue & Groove
Thickness (mm) 18/22/28/35
Length x width (mm) 2500 x 750
Actual Coverage length x width (mm) 2500 x 750 (18mm)
2480 x 728 (22/28 mm)
2480 x 722 (35 mm)
Square metres per board (m2) 1.875
Weight per board (kg) 6.75/8.25/10.5/13.125
Weight per m2 (kg) 3.6/4.4/5.6/7.0
Boards per pallet 55/45/35/28
Square metres per pallet (m2) 103.13/84.38/65.63/
Bulk density (kg/m3) 200
Nominal thermal conductivity λD(W/mK) 0.045
Thermal resistance
RD (m2K/W)
Vapour diffusion factor (μ) 3
sd-value (m) 0.054/0.066/0.084/
Compressive stress/ strength (kPa) 200
Tensile strength perpendicular to board
surface (kPa)
Air flow resistivity (kPa·s/m3) 100
Short-term water absorption (kg/m²) 1.0
Specific heat capacity (J/kgK) 2100
Fire reaction Euro Class as per
DIN EN 13501-1

Data Sheets

Abdichtmasse Sealing CompoundAbdichtmasse Sealing CompoundTechnical Data Sheet
GUTEX Multiplex Top GUTEX Multiplex Top Technical Data Sheet
Thermal Roof Solutions Thermal Roof Solutions Product GuideGeneral Documents