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
Multiplex Top Safety DatasheetMultiplex Top Safety DatasheetTechnical Data Sheet
Thermal Roof Solutions Thermal Roof Solutions Product GuideGeneral Documents