LASTOBOND® Shield is a self-adhered reinforced underlayment composed of special elastomeric modified bitumen blends of SBS. LASTOBOND Shield is designed to be used under shingles and composition shingle roof systems. LASTOBOND Shield has a split-back release film allowing for self adhered application.

Product Properties

  • Overlying Materials None
  • Thickness 40 mils (1.0 mm)
  • Topside Polyethylene Film


LASTOBOND Shield can be applied by peeling back the release film on the underside of the sheet and apply with hand pressure.

Testing & Approvals

FBC FL2569-R8 (Underlayments) ICC-ES ESR-1524

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