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MB Technology
(TU70) Layfast SBS Underlayment - 1 SQ. Roll
QXO product C-418593 · 1 options
Selected: MBT SBS LAYFAST UNDERLAY 70 1SQ
QXO SKU 418593 · Product number MBTTU70
Free, no-obligation quote. Our team confirms local availability, required quantities, compatible components, and installation pricing.
Selected option specifications
- UOM
- RL
- Item Weight
- 70
- Algae Resistance
- No
- Applicable Standards
- Florida State Approved ASTM International ICC-ES Evaluation Report ESR-2799 UL Classified Intertek Warnock Hersey GSA Contract Holder (Contract GS07F0531W) CMAS Approved Contractor ASTM-D-6380 ASTM D226 ASTM D4869 ASTM D6757
About this product
A superior and competitively priced alternative to traditional 30 & 40 lbs. organic felt. The addition of SBS rubber to asphalt gives Layfast an elastomeric property that is not available in common felt. Layfast SBS contains a higher percentage of asphalt for increased waterproofing. Its inorganic fiberglass reinforcement eliminates the rot and deterioration associated with saturated felt.



