636ALRoof Cap in Aluminum; Ventilation Fans

  • Overview
  • Specifications
  • Reviews
  • Answers
    • Roof cap fits 3” or 4” round duct for versatility
    • Built-in backdraft damper and bird screen keep out unwanted outside air and critters
    • Natural aluminum finish for durability and long life that stands up to the elements
    • Do not use for dryer venting
  • How many nails are needed to secure this vent to the roof?

    Bought this vent and discovered that there are only 2 pre-drilled nail holes on base. Was this done for a specific reason or should I pre-drill more nail holes into the vent?
    Asked by: Rookie
    Thank you for your question regarding the 636AL roof cap. The pre-drilled holes are to assist with positioning the unit. You can pre-drill more nail holes in the roof cap. If you have any further questions, please call Technical Support at 1-888-336-6151.
    Answered by: NuToneCustomerService
    Date published: 2016-09-29
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