Roof flashing is vital to direct water far from critical areas like chimneys and vents, avoiding leaks that might jeopardize the interior of your home.

https://www.scribd.com/document/817621313/When-to-Call-for-Emergency-Roofing-Providers-in-Maumelle-186110

Roof flashing is necessary to direct water far from vital locations like chimneys and vents, avoiding leakages that could compromise the interior of your home