Wind Driven Roof Vent Installation 

Really helpful mate cheers 👍

Did you use a 79mm hole saw ? That will leave a slightly bigger hole due to the way it cuts ?

What is your experience with Flettner ventilator now? I’m thinking of installing one. Is there any wind noise? Any water getting through the roof? Does it reduce condensation considerably?

Any leaks since fitting? Bit wary about fitting mine cos the built-in neoprene rubber seal looks tiny. If I put a bit of mastic on edges of cut out do you think that might help give added protection from water ingress or could adding mastic possibly hinder the performance of built-in seal? Thanks for the video.

Great video, brilliantly done. Can I ask With you having what appears like a joiners van, why did you need a vent?

I have this vent in my van i don't need it and how to close from outside on the roof this vent.

Who manufactures this vent and do they have a web page?

How much clearance does the spinning part have from the roof? Looks 12-15mm. Just I have. Gap of 130 rib to rib kind of like yours.

Did it make much of a difference in regards to heat inside the van?

Hideous music

whats the sealer spray you used ?

Where did you get it? Reply back to me web link.

What is used to seal it from water getting in ?

My advice is to seal the vent top and bottom were it's fitted to the hole. Even with this like all vents they will let in some rain. Solution? A bucket.

Why do people use annoying azz noise?

Thanks.. Song?