Henry 606 – 80# Premium SBS Modified Mineral-Surfaced Underlayment is a fire rated cap sheet for quality built-up roofing systems and is formulated for cold weather applications. Additionally, this cap sheet is manufactured on tested fiberglass mat, which is impregnated and coated with a lightly modified rubberized asphalt, filled with fire retardant fillers, and surfaced with mineral/ceramic color coated granules for ultraviolet protection and weatherability.

Features

• Provides tough SBS modified base sheet for use on rough surfaces
• Applies mineral side down as a buffer
• Can apply with hot mopping asphalt or cold process procedures
• 1 square roll
• ASTM D3909, Fed S-R-600D, Class III