Anderson TorchSafe T.A. Underlay from Icopal

Anderson TorchSafe T.A. Underlay

Anderson TorchSafe T.A. Underlay is a heat-activated/self-adhesive glass reinforced SBS-modified bitumen membrane with special vapour control stripes. It is intended for use as an underlay/base layer in a bitumen built-up roof system.

Features & Benefits

  • Unique grooves system
  • Self-adhesive side laps protect the insulation during installation
  • Technically advanced low heat-reactive bitumen
  • Thermically Activated membranes to protect combustible surfaces from naked flames
  • Exceptional bond strength
  • Reduced energy consumption
  • TorchSafe requires 50% less torching
  • Striped resinous profiles release water vapour to help eliminate blistering and prolong roof life

Product Range

Product Code Description Roll Size Roll Weight
2004384 TorchSafe T.A. Underlay 1m x 10m 28kg


Product Data and Performance

Performance Data:
Surface Upper: Thermofusible film, with SBS bitumen with release sheet to overlap selvedge
Surface Lower: Silica sand with SBS-modified bitumen adhesive stripes with release sheet
Material: SBS-modified bitumen adhesive
Type of Reinforcement: Glass
Selvedge Width: 75mm
Typical Thickness: 3.6 mm ±0.2


Ancillary Products

Icopal S.A. Spray PrimerIcopal S.A. Spray Primer is designed to penetrate and seal dusty or porous substrates of masonry, concrete, cementitious screeds or renders; existing bituminous or asphalt waterproofing; plywood or OSB; structural steelwork and other metals; prior to the application of thermically-activated self-adhesive bituminous membranes.


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