[aerohead]

I've had enough conventional duct tape failures,that for years now,I've relied on aluminum HVAC peel-backed tape.I get mine at The Home Depot.
You can prime and paint it if properly de-greased.
It has significant adhesion and holding power and is immune to weather of any kind short of a hail storm.
Kinda pricey,but you literally get what you paid for.
P.S. Always 'shingle' your tape with air lapping the seams,as water does over roof shingles,working from back to front.