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607 – 33# Fiberglass Base Sheet (UL Type G2)

Product Description
Installation and
Technical Literature

Henry 607– 33# Fiberglass Base Sheet (UL Type G2) is a heavy duty, asphalt-coated sheet with a core of heavy-weight, non-woven fiberglass mat, suitable for use in fire retardant membrane assemblies, built-up roofing systems, ply sheets and base sheets.  It has a coating layer of asphalt on each side that reacts with Henry Cold Application Cements solvents to provide excellent adhesion without decrease in tensile strength.


  • Provides a heavy weight and higher tensile base & ply sheet
  • Has lay lines appropriate for normal roofing side laps
  • Prevents sticking in the roll with sand lightly sprinkled on sheet surface
  • 2 square roll
  • ASTM D4601 Type II

May be applied with the following Henry cold application asphalt cement solutions:


Data Sheets

Henry 607 – 33# Fiberglass Base Sheet Data Sheet Download PDF      

SDS Sheets

Henry 607 – 33# Fiberglass Base Sheet SDS Sheet Download PDF