Master Flow®

Square-Top Plastic Roof Louver - RT65

Square top plastic roof louver that helps to exhaust heat and moisture from the attic
Square-Top Plastic Roof Louver - RT65
Large Capacity
Full 60 sq. in. (41,935 mm2) of net free ventilating area (NFA) per vent
Durable Construction
Helps resist scratches and dents
Easy To Install
Pre-drilled nail holes with extra-wide flashing area


Square-top, high-impact resin construction looks great for years to come and provides 60 sq. in. of NFA to exhaust heat and moisture.

Note: Always have a balanced ventilation system. In no case should the amount of exhaust ventilation exceed the amount of intake ventilation.

Protect Your Investment

Find out about product warranties and options that may help protect your most valuable assets. 

  • Golden Pledge®
  • System Plus
  • 4 yr. Ltd. Warranty
  • All-American Pledge Roof Guarantee

Product Properties

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