Originally Posted by riddle family
The vent cover you've refered to, while it'll work over a standard roof vent, is designed to be used with a powered Fantastic fan roof vent.
If you are looking to place a vent cover over a regular vent, you may consider a MaxxAir II vent cover.
It'll do a decent job of keeping the rain out when your vent is open, but with more louvered surface area, it will promote greater air circulation.
FAA A&P mechanic, ex-RV dealer parts dept
Retired B-52 Gunner/Flight Examiner, B-52 Crew Chief
2016 Jayco Eagle HT 29.5 FBDS w/ 15,000 BTU AC, 50 amp service, upgraded counter top, thermal pane windows, elec. stab jacks, outside grill, backup camera and MORryde pin box.
2011 GMC 2500HD DURAMAX/ ALLISON