Fire Specialist Stephen L. Quarles and Lomanco Metal Ridge Vents
I finally found this link after searching through a sea of research folders.
A while back I contacted Stephen Quarles, who studies how wildfires affect wood frame building and is affiliated with the Insurance Institute of Business and Home Safety and asked him if there were better choices for attic ridge vents other than plastic.
The only ones he knew of were from a company called Lomanco. They are aluminum with external baffles to help prevent rain water and wildfire embers from entering the attic.
Models LPR & VUR
With wildfire experts recommending metal eave and gable vents, it’s odd that most ridge vents are still made from plastic (which can melt and drip molten plastic into the attic).
Metal ridge vents on page 13.
If anyone knows of other metal ridge vents, please let me know.
GBA Detail Library
A collection of one thousand construction details organized by climate and house part