Front Roof Cover Damaged

[Texwest1961]

Hi, I own a 2018 Montana 3791 RD, during a hail storm I have a damaged cover (Approx 8" diameter, rises approx 3-4", Round shape/ OFF white) in the very front (over 5th wheel hitch area) on the roof. I looked for an explanation of what that cover is for with no luck in finding. Directly below the cover is a Closet, so I don't think it's a specific. Just checking to see if anyone knows what that cover is ? would appreciate any help identifying this cover so I can replace it.

 

[Carl n Susan]

That is a "Mushroom Attic Vent". You can buy them at Amazon, Walmart, RV Stores and such. There are two pieces to the ones you typically buy. A "base" unit that is screwed to the roof and coated with Dicor to stop any leaks. The second piece (the mushroom) screws onto the "base". You use the new mushroom with the old "base". There is no need to replace the base.

Some tips:
o - Paint the new mushroom top to keep it from being destroyed by the UV light.
o - Someone here (Daryles) had a link to a place where you can buy just the mushroom piece. Here is the link. It is only $5.99 but shipping is extra. Amazon gets $20 for the 2-piece model.
https://rvandmarine.com/product/mushroom-vent-cap-only/


There are lots of Threads here about this vent. Do a Search on "Mushroom vent" and see.

 

[Mikendebbie]

I bought 2 caps from the same source Daryl’s provided and spray painted them white. Hopefully these will last a long time.