I'm with Kasey. PVC coated wire isn't going to rust.

This is the reason that this site is valuable. Two guys solving the same problem differently and the rest of us weighing the ideas

and benefiting from the discussion.

nothing to be calm about Adam, I am always calm. Ive seen several places where what I described above has happened. Most guys around here put 1/4" hardware cloth on then some even reuse the old north country, with new shingles. WE just did a fairly large job with 76' on the garage and 178' on the house where this was an issue. The garage and home were "bat proofed" by a somewhat reputable company and he contracted a roofer to fix the venting issue. Well 3 years later the owner is sick of bat crap falling on everything in his garage under the peaks and got me out there to see what we could offer.

as far as dust clogging it in my experience I see way more issues with clogged vents on the intake, or the soffits rather then the exhaust- ie ridge.

michael

In rural areas with busy gravel roads and cornfields on all sides I have seen it almost completely plugged. For whatever its worth. I still use it in places.