Sahara BU30 Breathable Underlayment is a premium, multilayered synthetic roofing underlayment engineered to provide exceptional protection and promote a healthy roof system. Featuring advanced Moisture Release Technology (MRT), it actively draws trapped moisture from within the roof assembly, allowing wet roof decks exposed during construction to dry and mitigating the risk of mold, mildew, and potential structural damage. The slip-resistant textured top surface provides superior walkability on steep slopes, enhancing safety and productivity for roofing professionals. Designed for use under asphalt shingles, concrete tiles, metal panels, synthetic shingles, and primed cedar shakes, Sahara BU30 meets rigorous code requirements (including ASTM D226, ASTM D4869, and AC 188 per ICC-ES), offering clients the confidence and security of a high-performance, breathable underlayment system.
- Product Details:
- Premium, multilayered synthetic roofing underlayment
- Also known as Sahara BU30
- Features Moisture Release Technology (MRT)
- Slip-resistant textured top surface
- Breathable design
- Meets ASTM D226, ASTM D4869, and AC 188 (ICC-ES) codes
- Suitable for steep slopes
- Features:
- Actively removes trapped moisture to prevent mold, mildew, and rot
- Allows wet roof decks to dry after exposure
- Provides superior walkability and safety on steep slopes
- Durable and reliable secondary water resistance
- Compatible with a wide range of primary roofing materials
- Contributes to a healthier and longer-lasting roof system
- Applications:
- Beneath asphalt shingles
- Under concrete and clay tiles
- Under all metal panels and shingles
- Beneath synthetic shingles and primed cedar shakes
- Residential and commercial roofing projects requiring moisture management
- New construction and re-roofing applications



