We see cheap, plastic vents in roofs all the time. These vents are prone to warping and animal damage. This is why we recommend metal or composite roofing vents.
Airhawk Metal Vents and Ventilation Maximum Galvanized Steel Exhaust Vents are both available to our clients, along with DuraFlow Pro composite vents.
We do not skimp on material quality. We want the best for our clients and we want your roof to last its full life.