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PITCHED ROOF WITH INSULATION OVER RAFTERS

Structure characteristicts:

  • PITCHED ROF WITH BREATHER MEMBRANE
  • RIGID BOARD INSULATION ABOVE RAFTERS
  • FOAM INSULATION BETWEEN RAFTERS
  • PLASTERBOARD INTERNAL FINISH

Structure advantages:

  • DIFUSION OPEN (DEPENDS ON INSULATION)
  • AIRTIGHT
  • SOUND RESISTANCE
  • SPEED OF INSTALLATION
  • USUALLY TIMBER PARTS INVISIBLE FROM INTERIOR
  • REPLACEMENT OF EXISTING INSULATION WITOUT INTERVENTION TO INTERIOR
THERMAL TRANSMITTANCE VALUE ACCORDING TO B.S.EN.
REQUIRED THERMAL TRANSMITTANCE VALUE U [W/m2K]0.18
CALCULATED THERMAL TRANSMITTANCE VALUE U [W/m2K]
ICYNENE H2FOAM LITE (LDC-50)0.24
ICYNENE H2FOAM LITE PLUS (LDC-70) 0.22
ICYNENE H2FOAM FORTE (MDR-210) 0.20
TECHNICAL PARAMETERS OF STRUCTURE
LABELLAYERTHK. [mm]DESCRIPTION
1SLATES/TILES— ROOF COVERING
2BATTEN—SUPPORT STRUCTURE BASED ON ROOF COVERING
3COUNTER BATTENmin. 40VENTED AIRSPACE
4BREATHER MEMBRANE0.2WEATHER RESISTANT BARRIER / VAPOUR OPEN MEMBRANE
5PIR160THERMAL INSULATION LAYER
6RAFTER/ ICYNENE160RAFTER 120/160, 400-600MM CENTRES