rlw999
Washington State
Senior Member
Joined: 08/19/2020
View Profile
|
I'm replacing a roof vent with one with a fan. I have both Dicor self leveling lap sealant and some 4" Eternabond tape. The roof is TPO.
The current vent is sealed with lap sealant, but I'm not sure which to use for the replacement.
The way I see it, Eternabond (assuming the surface is clean and prepped) gives a better seal and will last for a decade. But with the drawback that it's very hard to remove if I need to replace the vent again down the road (though cutting it and just leaving it there is an option).
So what do you think, which would you use?
|
kwplot34
home
Full Member
Joined: 08/13/2015
View Profile
Good Sam RV Club Member
 Offline
|
Pro's and con's to everything, Dicor is easy to replace, but you have to keep an eye on it and do maintenance. Tape will last a long time, but is extremely hard to remove without hurting the roof liner. I use the dicor and do the maintenance, but carry the tape incase of an emergency.
|
Seneca 35GS
whittier
Full Member
Joined: 08/29/2009
View Profile
Good Sam RV Club Member
Offline
|
I have a fiberglass roof membrane and I have used 4" Eternabond tape with excellent results. I am a Eternabond believer.Once you touch the tape to the roof surface it better be in the correct location, because it is somewhat un-forgiving
Applied 12 years ago to my roof vents and never a leak.
|
Guy Roan
Florida
Senior Member
Joined: 09/04/2012
View Profile
Offline
|
If it was mine and the flange went down nice and smooth, I would use self leveling Dicor
Guy
|
pasusan
Northernmost PA
Senior Member
Joined: 05/13/2009
View Profile
|
I would use Eternabond if it is possible. I've got Eternabond around everything on my trailer roof - but when I replaced the Fantastic Fan with a Maxxair Fan in my class B - couldn't use it. I don't remember for sure, but it had something to do with the mounting bolt heads - I think they were too big and high - so the Eternabond just wasn't working. Dicor worked great in that instance.
"I'm out here to enjoy nature -- don't talk to me about the environment!" ~Denny Crane
Susan & Ben
2004 Roadtrek 170 for quick getaways
84 Bronco & 90 Award Classic 23 joined with a Hensley Cub for longer trips
Trip Pics
|
|
|
Super_Dave
Harrisville, UT
Senior Member
Joined: 01/19/2007
View Profile
Offline
|
Both, belt and suspenders, no worries.
Truck: 2006 Dodge 3500 Dually
Rig: 2018 Big Country 3155 RLK
Boat: 21' North River Seahawk
|
opnspaces
San Diego Ca
Senior Member
Joined: 12/22/2004
View Profile
Offline
|
I would put Dicor under the vent and then Eternabond it. Then just don't drive under any low branches.
2001 Suburban 4x4. 6.0L, 4.10 3/4 ton
2005 Jayco Jay Flight 27BH
1986 Coleman Columbia Popup.
|
Lwiddis
Near Bishop, California
Senior Member
Joined: 08/12/2016
View Profile
Good Sam RV Club Member
Offline
|
2x on opnspaces opinion.
Winnebago 2101DS TT & 2020 Chevy Silverado 1500 LTZ Z71, WindyNation 300 watt solar-Lossigy 200 AMP Lithium battery. Prefer boondocking, USFS, COE, BLM, NPS, TVA, state camps. Bicyclist. 14 yr. Army -11B40 then 11A - (MOS 1542 & 1560) IOBC & IOAC grad
|
JIMNLIN
Oklahoma
Senior Member
Joined: 09/14/2003
View Profile
|
My 24 years old 32' 5er has had nothing but Dicor added when the OEM sealant needed help or replacing. The trailer was 4 year old when a crack formed in the skylite over the bed. I replaced it with a vent. I used the grey butyl tape like OEM first. Removed the squeeze out butyl then added Dicor over the scr heads and joint. Haven't touched it since.
I helped a neighbor replace Eternabond on his roof (around two skylites) that some newb had poorly applied. I would never add Eternabond over screw heads. Its a bitzh to remove even when poorly applied.
Having worked on RV and mobilehome mostly roof mfg/repair previously I would never add Eternabond over screw heads. Great stuff for hole repair or repairing long tears in roofing material.
"good judgment comes from experience, and a lot of that comes from bad judgment" ............ Will Rogers
'03 2500 QC Dodge/Cummins HO 3.73 6 speed manual Jacobs Westach
'97 Park Avanue 28' 5er 11200 two slides
|
Cummins12V98
on the road
Senior Member
Joined: 06/03/2012
View Profile
Offline
|
Super_Dave wrote:Both, belt and suspenders, no worries.
YES!!!
2015 RAM LongHorn 3500 Dually CrewCab 4X4 CUMMINS/AISIN RearAir 385HP/865TQ 4:10's
37,800# GCVWR "Towing Beast"
"HeavyWeight" B&W RVK3600
2016 MobileSuites 39TKSB3 highly "Elited" In the stable
2007.5 Mobile Suites 36 SB3 29,000# Combined SOLD
|
|
|
