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04-02-2020, 05:24 AM
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#21
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Site Team
Join Date: Jul 2014
Location: Modesto
Posts: 20,350
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I use Dicor self leveling. Apply completely UNDER the bracket, then screw down. After that completely cover the portion on the roof.
__________________
2012 Copper Canyon 273FWRET being towed by a 1994 Ford F350 CC,LB,Dually diesel.
Airlift 5000 bags, Prodigy brake control, 5 gauges on the pillar.Used to tow a '97 Jayco 323RKS.
Now an RVIA registered tech. Retired from Law enforcement in 2008 after 25+ yrs.
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04-02-2020, 09:51 AM
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#22
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Member
Join Date: Oct 2019
Location: Louisville
Posts: 67
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If they used 3/4 inch plywood they would not be able to bend it to the roof slope
__________________
I am a analog man living in a digital world.
Joe Walsh
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04-02-2020, 10:58 AM
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#23
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Site Team
Join Date: Mar 2011
Location: Gaylord
Posts: 26,997
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Quote:
Originally Posted by Steve's 70-5
If they used 3/4 inch plywood they would not be able to bend it to the roof slope
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Not without pulling the floor/sidewall screws out of the Styrofoam floors !!!
Light, Ultra-Lite and "Helium Technology" don't have anything that's "solid and 3/4" thick" anywhere in the construction... Check that 3/8" countertop backing that's covered with 1/16" "fake formica" and molded on the edges to make it appear to be 1.25" thick....
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John
2015 F250 6.7l 4x4
2014 Cougar X Lite 27RKS
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04-09-2020, 07:10 AM
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#24
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Senior Member
Join Date: Mar 2018
Location: Minneapolis
Posts: 196
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You don't need to screw it. I used perma bond roofing tape to hold mine on.
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04-09-2020, 07:42 AM
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#25
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Senior Member
Join Date: Oct 2019
Location: Central FL
Posts: 1,090
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Quote:
Originally Posted by JRTJH
Go into the bathroom in your trailer, pull the 4 screws holding the plastic flashing around the vent fan. Once that flashing is down, you'll see 4 "TPO flaps" where the roof material was cut and stapled to the vent framing. Pull the staples from one of the flaps and lift it. You'll see the OSB roof decking used on your trailer. My guess is that it's either 1/4" OSB (if you do not have a roof ladder on your trailer) or 3/8" OSB (if you do have a roof ladder/walkable roof).
In either case, your "assumption" that the roof is 3/4" plywood is nowhere close to reality. At best, it's half that thick, probably even thinner and it's OSB, not plywood.
Pull the vent flashing, you'll be able to see EXACTLY what's stapled to your roof rafters and "hidden" by the TPO membrane.
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The 2020 239ML is a walkable roof, but no ladder (bean counters at Keystone probably omitted the ladder in favor of saving $). Heck, there isn’t even a bunk ladder inside for that matter! Some are rated for snow load if it's a Western edition As I understand. It’s a bit “Squishy” up there, especially near the front, otherwise just use common sense Walk easily and don’t use it as a sun deck.
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04-09-2020, 08:18 AM
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#26
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Senior Member
Join Date: May 2018
Location: Winchester
Posts: 113
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Most of the panel manufacturers say that you should use Well nuts on the roof when it's OSB/TPO. It's what I used on mine.
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04-09-2020, 08:35 AM
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#27
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Senior Member
Join Date: Sep 2019
Location: Jacksonville
Posts: 538
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WOW imagine the extra weight that installing 3/4" plywood up there. Costly for manf, unwieldy to handle on the line, and changes the weight and available payload. That's the way the handle more available payload numbers and saying a half ton can tow this stuff... Lite, Light, Shave more here, trim more there.
__________________
2020 Cougar Half Ton 29RKS Fifth Wheel
2019 F350 4WD Lariat SRW 6.7 Diesel SD
Anderson Ultimate 5th Hitch - JT Strongarm TST509 TPMS- 2200W(8)Solar Panels - 800AH BattleBorn Batteries. 3000W Victron MultiPlus II Inv. SoftStartRV on 2 AC’s - Predator 3500 generator Airlift 5000 bags
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04-09-2020, 09:01 AM
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#28
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Site Team
Join Date: Mar 2011
Location: Gaylord
Posts: 26,997
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Quote:
Originally Posted by rlh1957
WOW imagine the extra weight that installing 3/4" plywood up there. Costly for manf, unwieldy to handle on the line, and changes the weight and available payload. That's the way the handle more available payload numbers and saying a half ton can tow this stuff... Lite, Light, Shave more here, trim more there.
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One manufacturer, not associated with Keystone (or THOR) builds a Styrofoam roof. It's built very similar to the "sandwich floor system" used by Keystone. A 1/8" luan panel, 3" Styrofoam and a 1/8" luan ceiling panel. All the ducting is "formed from sprayed foam" and there are "minimal trusses/rafters" in the assembly... They advertise that it cuts nearly 500 pounds from the trailer weight, allowing for smaller tow vehicles and greater cargo capacity"....
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John
2015 F250 6.7l 4x4
2014 Cougar X Lite 27RKS
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04-09-2020, 12:45 PM
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#29
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Senior Member
Join Date: Sep 2017
Location: Qualicum Beach
Posts: 555
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Quote:
Originally Posted by levic900rr
Hey Team,
I picked up my new Passport 239ML recently and I am thinking my first project will be installing my solar panels on the roof. I'm assuming the roofing material is 3/4" plywood, so I don't need to worry about finding framing to screw to? Can anyone confirm?
Thanks!
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Read the following to understand how the installers do it.
https://amsolar.com/diy-rv-solar-ins...edmounts?rq=3m double sided tape
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04-09-2020, 10:45 PM
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#30
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Member
Join Date: Aug 2019
Location: St. Charles
Posts: 38
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No "Goop" is a great hand cleaner and stain remover from clothes. Comes in tubs and will not seal anything--------period. We old folks know these things,,,,,,, To "goop" would be to glob on heavy amounts-------I guess.
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04-10-2020, 05:02 AM
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#31
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Site Team
Join Date: Oct 2011
Location: Joppa, MD
Posts: 11,757
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Lowes has it. Google "Amazing Goop".
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Marshall
2012 Laredo 303 TG
2010 F250 LT Super Cab, long bed, 4X4, 6.4 Turbo Diesel
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04-10-2020, 09:40 AM
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#32
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Site Team
Join Date: Mar 2011
Location: Gaylord
Posts: 26,997
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It seems like "GOOP" has entered the realm of "TRUCK" and similar words....
Everyone has a "version of truck" ranging from 1/4 ton to 10 ton (and larger) and then, there's the railroad "version of truck" that doesn't even have a steering wheel....
So "TRUCK" and "GOOP" are the same thing, well, at least in being significantly different but similar in being "so different" in some of its forms, all the while, maintaining a separate definition while being the same..... If you can't find your GOOP, just use your TRUCK, it's virtually the same thing, at least in some ways.....
To, Too and Two.... Where's Sesame Street when you need it most ???? (One of these things just doesn't belong here...…)
__________________
John
2015 F250 6.7l 4x4
2014 Cougar X Lite 27RKS
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