L770WB

Lomanco 770 Slant Back Roof Louver
Roof Vents
MPN: L770WB L770WB MFG #: 770WB

Lomanco 700 Series Roof Louvers are built with three outward and upward discharging side vents to prevent unsightly roof streaking that is so common with ordinary roof louvers. This exclusive Lomanco design also prevents the problem of bird and animal infiltration while providing maximum attic exhaust air flow and weather protection.

Measuring 16-5/8 x 22-3/8 x 6 in, the 770 is a slightly larger version of the original 750 Slant Back Vent. The embossed aluminum finish provides added strength and extended paint life while blending closely with shingles.

Lomanco® Static Roof Vents are exhaust vents by design. Each vent's unique design offers maximum weather protection.

  • Designed to prevent roof discoloration
  • Three sides louvered for greater air flow
  • Bird-proof design
  • Weather tight seamed collar
  • High profile and rolled flange on vent stack for superior weather protection and circulation