Technical Data Sheet (TDS)
Sealora® Ice & Water is a self-adhering underlayment designed for superior moisture protection under shingles, tiles, and slates. It uses advanced peel-and-stick technology with a high-performance SBS polymer-modified bitumen compound laminated onto a tough fiber-reinforced mat with a granular anti-slip surface.
Ideal for cold climates and ice-dam-prone regions, it forms a secondary watertight barrier beneath critical areas of your roof system.
| Property | Test Method | Value |
|---|---|---|
| Nominal Thickness | ASTM D5147 | 40 mil |
| Top Surface | — | Mineral Granules |
| Release Film | — | Silicone-Coated Split Film |
| Tensile Strength (MD/CD) | ASTM D1970 | 80 / 60 lbf/in |
| Tear Resistance (MD/CD) | ASTM D1970 | 60 / 40 lbf |
| Elongation (MD/CD) | ASTM D1970 | 70% / 60% |
| Adhesion to Plywood @40°F | ASTM D903 | 5 lbf/in |
| Adhesion to Plywood @75°F | ASTM D903 | 12 lbf/in |
| Nail Sealability | ASTM D1970 | Pass |
| Low Temp Flexibility | ICC AC48 | Pass |
| Water Vapor Permeance | ASTM E96 | 0.03 perms |
| Fire Rating | ASTM E108 | Class A (under shingles/tiles) |
| Thermal Stability | ASTM D1970 | Pass |
| Application Temp Range | — | 40°F to 110°F |