There are metal straps and screws provided for the fastening of the collar and flashing panel on to the roof.
How to install a whirlybird on tin roof.
Secure the flashing panel and collar onto the roof by using the tree metal strap and self tapping screws supplied.
Remove any teks from the ridge cap.
Carefully bend and position the metal straps at 12 5 and 7 o clock positions as shown.
After which flashing and sealant are applied around the opening to prevent water from seeping through.
Step 2 mark the position.
Then remove the whirlybird and starting from the centre hole cut out the circle you have drawn.
Make a hole and circle using snips.
This video demonstrates the installation of a whirlybird roof ventilator on a trimdek metal roof.
Fasten the collar and flashing panel on the roof.
On the bottom of the ridge cap you will need to mark the position to identify the hole to.
At this point take the whirlybird up to the top of the roof and place it centrally over each hole you have drilled tracing out the perimeter of the cylinder on the outside of the roof sheet.
Most homeowners prefer installing the whirlybird on the side of the roof that is.
How to install a whirlybird on a metal roof step 1 identify the ideal location.
Installation of a whirlybird is not so expensive because the process only requires removing a section of roof shingles and drilling an appropriately sized hole to fit in the whirlybird.
Ensure that you have each of them in the right position before placing the metal straps.
Below is the equipment needed to do the whirlybird installation a ladder or other access to the roof battery drill or drilling machine and extension cable marking pen angle grinder or tin snips capable of cutting your roof sheet thickness socket to drive 5mm tek screws commonly 8mm hex any.
Double check your placement now go down and look inside to double check that the pilot hole is where you expect it to be about half way between the trusses.
Place the whirlybird so that it overlaps the ridge cap.
Place the whirlybird base under the ridge cap.
Screw the collar to the flashing panel through the front two straps position 1.
How to install a whirlybird on a metal roof 1.
Use the whirlybird base as a template and mark a circle.