"The Fantastic vent attachment system is much nicer? Where you have to run screws through the sealant down into the bottom flange and roof?
I would think its the other way around with the Maxxair brackets being the better moustrap that do not disturb the roof or sealant at all?"
Much better attachment with the FantasticVent! Reason? You are using the existing screw hole location. I could have simply removed the screw and ran a screw with sealant on it to attach bracket but I wanted the best installation possible is I went the extra mile. It's a no brainer with zero measuring/drilling involved
I have used the MaxxAir and the installation is not as easy, really not into drilling holes thru the curb of the fan. Also the flexing going down the road could cause the bracket screws to come loose.
