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IB-3™ IceBuster is a self-adhering, 50 mil, mineral surfaced roofing underlayment for use under shingles, tile, and other types of roofing. It is constructed from a strong layer of mesh bonded to rubberized asphalt and coated with black stone granules.

IB-3™ IceBuster installs under roofing at the edges and valleys to protect from leaks due to ice dams, melting snow and blowing rain. IB-3™ IceBuster is suitable for use in new construction and reroofing.

IB-3™ IceBuster Features

  • 50 mil nominal thickness
  • Installs in temperatures above 40°F
  • Minimum slope for installation is 2" per foot
  • Applies easily at eaves, valleys, vents, skylights and chimneys
  • Easy to remove split release liner for fast installation and ideal for valley applications
  • Self-seals around common fasteners
  • May be left exposed for up to 30 days
  • 5-Year limited warranty

IB-3™ IceBuster Approvals

  • ASTM D 1970
  • ICC-ES ESR 1737
  • Florida Building Code FL 11842.1
  • Miami-Dade County Approved
  • Texas Department of Insurance Listed

IB-3™ IceBuster

ProductProduct IDSizeUnits/CartonCarton Wt.
IB-3 IceBuster4733336” x 33’137 lbs
4736736” x 67’168 lbs
4737536” x 75’175 lbs
MFM IB-3™ IceBuster

IB-3™ IceBuster 36" x 33" (1 Square), 36" x 67' (2 Square)