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06-08-2020, 04:32 PM
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#1
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Established Member
Join Date: May 2020
Location: Rapid City
Posts: 46
M.O.C. #26357
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Identify this please.
I have at front and back of the roof about 6 inches from the end and in the center that looks like vents can anyone here identify them and tell me what they are for.[IMG]  [/url][/IMG]
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06-08-2020, 04:56 PM
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#2
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Site Team
Join Date: Oct 2005
Location: Carmichael - CA
Posts: 7,359
M.O.C. #4831
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Those are "mushroom caps" and they are vents for the ceiling area.
https://www.amazon.com/RecPro-Attic-.../dp/B017MP1RH0
__________________
Carl (n Susan)
There is more to life than fuel mileage.
2012 Montana 3700RL Big Sky Package towed by a 2015 Ford F350 6.7L PSD 4WD CC LWB
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06-08-2020, 05:20 PM
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#3
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Established Member
Join Date: May 2020
Location: Rapid City
Posts: 46
M.O.C. #26357
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Can you identify this
I was up on the roof today for the first time. I have two of these one on each end of the roof about 6” from the back and front cap in the middle. It looks like a vent.
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06-08-2020, 05:27 PM
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#4
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Montana Master
Join Date: Oct 2004
Location: Salem
Posts: 7,548
M.O.C. #2283
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Roof vent
Lynwood
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06-08-2020, 05:51 PM
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#5
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Montana Fan
Join Date: Jan 2020
Location: Hilliards
Posts: 237
M.O.C. #25636
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Attic ventilation for attic. The roof area in between the ceiling and the roof
__________________
2020 MHC 330RL
2021 F350 DRW 6.7 Powerstroke 
Retired and Rollin'!
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06-08-2020, 05:52 PM
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#6
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Montana Fan
Join Date: Jan 2020
Location: Hilliards
Posts: 237
M.O.C. #25636
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Attic ventilation for attic. The roof area in between the ceiling and the roof
__________________
2020 MHC 330RL
2021 F350 DRW 6.7 Powerstroke
Retired and Rollin'!
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06-08-2020, 06:18 PM
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#7
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Established Member
Join Date: May 2020
Location: Rapid City
Posts: 46
M.O.C. #26357
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Thanks I guess I need to look at how the roof is constructed.
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06-08-2020, 06:31 PM
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#8
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Montana Master
Join Date: May 2019
Location: Alton
Posts: 2,680
M.O.C. #24086
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Factory tour video show the building of the roof.
https://youtu.be/cV0OZv0bCgc
__________________
Daryl and Marianne,
2019 3130re 20th Anniversary Edition
2016 F350 Lariat
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06-21-2020, 09:38 AM
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#9
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New Member
Join Date: Mar 2014
Location: Coulterville
Posts: 7
M.O.C. #14119
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Yes roof vent. Mine rotted from UV rays I guess. When I got the replacement parts I noticed they are two piece. The top unscrews from the bottom making it a 5 minute replacement job.
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06-21-2020, 09:45 AM
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#10
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Montana Master
Join Date: Jan 2006
Location: San Antonio
Posts: 1,298
M.O.C. #5165
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Easy to replace as previous response. UV will do number of these vents so plan on replacing if you keep your Monty long enough.
__________________
F-250 King Ranch Crew Cab 2012, Single Wheel, 6.7 L Diesel, Transfer Flow Internal 50 Gallon Fuel Tank, Upgraded Ford Software for 50 Gallon tank, 2006 3475Rl with Mor-ryde King Pin, 2nd AC, 2nd Battery, Pressure Pro TPMS, Wet Bolt Shackle Kit
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06-21-2020, 09:49 AM
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#11
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Montana Master
Join Date: Dec 2009
Location: Sebring
Posts: 3,658
M.O.C. #9969
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And when replacing put a dab of RTV on the threads. I totally lost one because it just unscrewed going down the road.
__________________
Michelle & Ann
2018 Chevy 3500HD High Country DRW 4X4 Crew Cab w/Duramax/Allison, Formally 2010 Montana 2955RL, Now Loaded 2016 SOB, Mor/ryde IS, Disc Brakes & Pin Box, Comfort Ride Hitch, Sailun 17.5 Tires.
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06-21-2020, 01:18 PM
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#12
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Site Team
Join Date: Aug 2007
Location: Omaha
Posts: 6,750
M.O.C. #7560
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Randy-- I'm curious as to why you need to look at how the roof is constructed? The attic/roof vents draw the hot and moist air out of the space that is between the roof and the ceiling inside. The rafters are from about 2"-4" in height and the wires, and a/c ducting run through spaces of the rafters to where ever they need to go. If you have bad caps on the vents you can remove the cap and put a new one on BUT you will have to purchase the whole vent assembly to get that new cap. They do not sell just the caps alone. I replaced both of mine on the old unit and now on the new unit I try and wipe them down with some sort of UV protectant so they don't oxidize quite so fast now. Your caps look really good compared to what my old unit caps looked like when I replaced them. They were really pitted and when I took them off they were actually brittle for the UV rays.
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06-21-2020, 10:12 PM
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#13
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Montana Master
Join Date: Nov 2012
Location: Rancho Santa Margarita
Posts: 633
M.O.C. #13025
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I spray painted my replacements to make them last longer.
__________________
Russ and Linda, So. California
2004 Chevy Silverado 2500 HD, D/A, SRW, SB
2005 2955RL, Pullrite Superglide 16K hitch. Bridgestone Duravis R500 tires. EZ Flex Equilizers with wet bolts.EMS HW50C, Disk brakes
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06-22-2020, 09:53 PM
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#14
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Established Member
Join Date: May 2020
Location: Rapid City
Posts: 46
M.O.C. #26357
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Quote:
Originally Posted by Rondo
Randy-- I'm curious as to why you need to look at how the roof is constructed? The attic/roof vents draw the hot and moist air out of the space that is between the roof and the ceiling inside. The rafters are from about 2"-4" in height and the wires, and a/c ducting run through spaces of the rafters to where ever they need to go. If you have bad caps on the vents you can remove the cap and put a new one on BUT you will have to purchase the whole vent assembly to get that new cap. They do not sell just the caps alone. I replaced both of mine on the old unit and now on the new unit I try and wipe them down with some sort of UV protectant so they don't oxidize quite so fast now. Your caps look really good compared to what my old unit caps looked like when I replaced them. They were really pitted and when I took them off they were actually brittle for the UV rays.
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The reason I like to know how the roof is constructed is this I came from owning class A motorhomes. Those roofs were constructed using aluminum, foam insulation and Luan and fiberglass sheeting and placed on the coach as one piece. They had put the cooling vents, satellite mounting plates built into the roof. I was quite surprised that trusses were used in the roof, thus did not know of ventilation needed. My caps are in great shape because the Montana is a 2020, and I have only had it month and a half now.
__________________
2020 3813MS
2019 Chevy 3500 CC DRW, Duramax
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06-23-2020, 09:15 AM
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#15
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Montana Master
Join Date: Apr 2006
Location: Mesa az
Posts: 2,945
M.O.C. #5651
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I replaced one of these on my first Montana about 10 years ago. It was like chalk when you rubbed it. If my memory is right, I think it kind of crumbled when I removed it. Thinking of this, I need to check mine the next time I am on the roof!!!
__________________
Tom and Gail
2013 Mountaineer 362
2012 Silverado 2500
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06-23-2020, 10:03 AM
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#16
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Established Member
Join Date: Sep 2019
Location: Costa Mesa
Posts: 37
M.O.C. #24836
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Quote:
Originally Posted by h2ojocky
I spray painted my replacements to make them last longer.
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I hope the propellant in the spray paint doesn't defeat your purpose.
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