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How to Install a Whirlybird on a Metal Roof

This guide provides step-by-step instructions to install a whirlybird on a metal roof. Follow these instructions carefully to ensure a secure fit and watertight installation.

Required Tools​

  • Marker
  • Impact Driver (tek gun) & teks
  • Left and right tin snips
  • A Level
  • Roof and Gutter Silicone

Steps​

Position the Whirlybird​

Place the whirlybird so that it overlaps the ridge cap on your metal roof.

Mark the Template​

Use the whirlybird base as a template and mark a circle on the roof to indicate where the opening should be cut.

Cut the Opening​

Using left and right tin snips, cut along the marked circle to create a clean opening.

Clear Existing Teks​

Remove any teks from the ridge cap to ensure an even surface for installation.

Position the Whirlybird Base​

Slide the whirlybird base under the ridge cap.

Bend the Base​

Bend the sides of the whirlybird base over the sheeting ribs to conform to the profile of your roof.

Secure the Base​

Use tek screws to secure the whirlybird base in place.

Adjust the Base to Fit​

Cut and bend the whirlybird base as needed to align perfectly with the metal sheeting profile.

Waterproof the Installation​

Apply roof and gutter silicone to prevent leaks. (Note: You can also install silicone underneath the base for extra leak prevention.)

Install the Whirlybird Tube​

Place the whirlybird tube onto the secured base.

Level the Whirlybird​

Use an A Level to ensure the whirlybird is perfectly level, and secure it further with teks to prevent movement.

Install the Top Whirlybird​

Finally, complete the assembly by installing the top whirlybird.

Final Checks​

  • Ensure the whirlybird rotates smoothly.
  • Inspect the installation for any gaps or loose fittings.
  • Reapply silicone if necessary to maintain a watertight seal.

By following these steps, you'll have a securely installed whirlybird that aids ventilation on your metal roof.