Premier Mastic Asphalt

Ballasted Warm Roof System

System Options: Ballasted Warm Roof System

Installation Benefits

Please note the designers should satisfy themselves that the structure and supporting deck are capable of receiving the additional dead load of a Ballasted System.

Ballast Requirements

Thermazone
IVR Thickness (mm)

Gravel Depth
(16kg per 10mm)

30, 40, 50

50

60

60

70, 80, 90

75

100

80

120, 140

90

TPO Ballasted
  • Allows use of maximum sheet widths
  • Maximum resistance to external fire
  • Speed of installation – Membrane loose laid
  • Maximum restraint against wind uplift
  • Protected from mechanical damage
  • Protected from solar/ UV degradation



TPO Inverted
  • Allows use of maximum sheet widths
  • Max resistance to external fire
  • Speed of installation – Membrane loose laid
  • Maximum restraint against wind uplift
  • Protected from mechanical damage
  • Protected from solar / UV degradation
  • Membrane temperature lowest of all systems
  • Eliminates damage by condensation
  • Movement within insulation not transmitted to membrane
  • Unaffected by freeze / thaw cycles
  • Thermal upgrade easily achievable