MS 300 is an SBS modified, glass fiber reinforced, self-adhesive modified bituminous roofing underlayment for use under tile, slate, and asphalt shingles. Mineral granules on the upper surface provide enhanced skid resistant properties.
- Skid resistant surface provides improved footing
- Release film peels off for easy installation and handling
- 30 day exposure limit
- Adheres directly to concrete, plywood, wood composition board and gypsum sheathing
- Self-sealing around nails, preventing moisture penetration
- Meets ASTM D 1970