[RV8R]

Very helpful tips on installing the liner...a task I will be facing soon. Thanks!

U R Welcome @furnitureguy

Good Luck with your liner !!

 

[83Grumman]

May I ask did you use 1/4” foam and where did you source it and the headliner from? Did you use 3M 90 spray on both to attach? Lastly did you find it difficult to apply? I’ve been following your thread as we had also been waiting several months for our 3500 to arrive. We’re from Alaska so it’s way to cold to work outside until “Spring”. Today we were lucky to work on our van as a friend of a friend is out of town for a few days and is allowing us to use their oversized garage. I’m glad that you’re ahead of us and posting even though we’ve done a lot of research, we don’t have any experience in this new endeavor of ours. Thank you again for documenting your build.

Uline has packing foam but it comes in large quantities. You might find other sellers with smaller rolls.

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[Lolaeliz]

What is the purpose of the trunk liner?

 

[83Grumman]

It covers the unsightly metal structure and provides a little thermal break when use with foam.

 

[Lolaeliz]

It covers the unsightly metal structure and provides a little thermal break when use with foam.

That makes sense, thank you! I thought it was something about the garage area so I was confused.

 

[RV8R]

Uline has packing foam but it comes in large quantities. You might find other sellers with smaller rolls.

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Do you use this materials in large sheets to cover the entire wall panels to help eliminate “road noise / squeaks”?

 

[furnitureguy]

U R Welcome @furnitureguy

Good Luck with your liner !!

Question: what did you use to cover the larger voids in the pillars? I figure alum. tape will do for the small holes.

 

[83Grumman]

Do you use this materials in large sheets to cover the entire wall panels to help eliminate “road noise / squeaks”?

I did not use it to help eliminate squeaks. I used it to cover metal that would be exposed after installing polyiso. I stuck it on before installing the polyiso so the polyiso overlaps it in most places.

 

[phil]

another source, Home Depot also has packing foam sheets

 

[Dennis CampMaker]

I used this spray glue for both;

View attachment 82135

Thank you!

 

[RV8R]

Jan 22;

Today I installed the cherry colour ledgers that hold the upper cabinets to the van walls. As I had cut a channel in the back of the one that goes above our heads when sleeping for electrical wires for an LED light, I was over zealous with the table saw & had to glue in a piece of wood as a bolt & rivnut are in that location. So some glue & a piece of wood that fits.

Then I installed the cherry ledgers after sealing the back sides of them (these 4 screws will be replaced with small black o

Then. Looked at how I am going to build the uppers & think I have a loose design in mind. Still no 1” polyiso for the ceiling, so I decided to install the window in the slider;

I have had that window since about April or May 2021, but after. Installed it I think the “Tint” is not what I ordered.😳🤔. Another thing to sort out with the supplier,,,


So now I am at a crossroads in my build;

1) Cut up what little 1” polyiso I have and install in the ceiling along driver’s & passenger’s walls to finish gluing the trunk liner to & carry on with the upper cabinet fabrication

or

2) Try to find some XPS high load & put the floor in & carry on with the rest of the build floor up.


I am inclined to choose path #2. I am good ng to think about it & choose soon.

 

[RV8R]

Question: what did you use to cover the larger voids in the pillars? I figure alum. tape will do for the small holes.

That is what I did - multiple layers to build up a bit of strength

 

[83Grumman]

That is what I did - multiple layers to build up a bit of strength

I did the same.

 

[Sourdough]

T

I used “sill gasket” for thin foam. Purchased it @ HD;

View attachment 82136

The glue & trunk liner I purchased from a local auto upholstery shop. Here is the glue I used;
View attachment 82137

My 1st build lives in “Whitehorse” now 2018 EXT. 🥶🥶

Installing 🤔 ,,, I had little screw ups, but I am working alone, so I founded it best to start by setting the liner 1st, then glue an edge, then glue the remainder & work from the center out if possible;


View attachment 82138



View attachment 82139


Spraying both the bulk of the liner & foil faced insulation with glue;
View attachment 82140


I did not have a photo of the trunk liner in place, but here is one of me gluing the wood panel to the polyiso foil face 2” Insulation;
View attachment 82141

Thank you. I checked and our HD does carry the 5 1/2” sill gasket. I also appreciate the extra application information and pictures. I was hoping to find a good video to watch before tackling this but I might just dive in when the time comes. Yesterday we got the kilmat up. Today we got the XPS and the plywood floor cut and put in but not bolted down. We’ve got all the Thinsulate panels cut and hope to mount them tomorrow. We’ve got to take advantage of our 5 days of garage time. Thank you again.

 

[Sourdough]

Uline has packing foam but it comes in large quantities. You might find other sellers with smaller rolls.

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Thank you. I looked after seeing your suggestion and saw one that was fairly affordable 1/4” x 12” x 50’ but wasn’t sure how the perforated would be. I may look at the sill gasket since it’s in stock here. I appreciate your help.

 

[RV8R]

T

Thank you. I checked and our HD does carry the 5 1/2” sill gasket. I also appreciate the extra application information and pictures. I was hoping to find a good video to watch before tackling this but I might just dive in when the time comes. Yesterday we got the kilmat up. Today we got the XPS and the plywood floor cut and put in but not bolted down. We’ve got all the Thinsulate panels cut and hope to mount them tomorrow. We’ve got to take advantage of our 5 days of garage time. Thank you again.

You are welcome. HD might also carry 7.5” sill gasket (it is for 2x8 framed walls). The 7.5” might be a better width for you on the “C” pillars.

Yes take advantage of those 5 days 👍

 

[RV8R]

Jan 23:

Todays task was the roof fan Maxxair 7000 “All White” but with a black remote control

I do not like loading the roof, so I go to the huge effort of setting up scaffolding. Getting the scaffolding, setting it up, taking it down, & taking it back takes as much time as cutting the hole in the roof & installing the roof fan.

Here are the photos;

I make sure. Am in the center of the roof @ the high pan & I drill a small hole to ensure when I get to the roof. I also verify this when I’m up n the roof.

I clean the area of the roof with a clean rag & 99% alcohol. And then I mark it out 14” x 14” standard hole & I check to make sure it is square.

I use a jigsaw with a metal cutting blade, after I drill an appropriate size hole in the 4 corners. I then cleanup the edges with files and Scotch Brite Pads.

I then put butyl tape around the edge of the fan mount & place it on the once again cleaned roof with alcohol. I get Mrs RV8R to hold the plywood backing I made out of 3/4” Birch plywood 19” x 18.5” with a 14”x14” hole cur out after marking it in the roof hole. The I predrill a pilot hole just barely thru the van skin and into the plywood backing & use another cordless drill to install the screw. I start with 1 corner at a time until all 4 corners are screwed & then I do the middle screws one at a time. Then I drill all the remaining holes in one operation & then install the remaining screws. Then I hand tighten each screw to ensure torque. Then I trim off the excess butyl that squashes out the side. Then I add the self leveling sealant over the screw heads & the mounting flange & van roof;

Edit; I have cut out & installed 3 of these fans now. On the first on I did in 2018, I fought to install the 4 screws that mount the “unit” to the roof flange. The last 2 “recent” installs there was no fighting these 4 screws.

Here is the trick; In the photo above you can barely see the black “pressure” seal on the side labeled front. I removed the interior screen on the unit and have a helper pull down by reaching through the fan and holding onto the crossmember to pull the unit and pressurize the little black seal. It is easier to crank the hood up, screw in the front screws first as they are most difficult to reach, and then screw in the rear screws. I get my helper to apply pressure to the front first while installing the front screws. Once they are in the helper pressurizes the back in order to get the back screws in. The other minor detail is this, the four metal clips the pinch the mounting flange where these four screws go through come from the factory with a small gap at the top were these pinch the mounting flange. While mounting the flange to the roof, I pushed one of these clips down by accident. I adjusted it back into the original position before attempting to mount “the unit”.

I’m a little bad for “not reading the install manuals” with things & stuff, so in full honesty I do not know if this “technique is mentioned or if Maxxair glosses over this minor issue (that caused me more fighting time than cutting out the hole on the 1st fan I did in 2018).

Maxxair - MAXXFAN Deluxe All-In-One RV Vent, Shield & Fan | Airxcel

The MAXXFAN Deluxe is the ultimate combination of fan, vent and rain shield. High output for ventilation performance and superior weather protection.

www.airxcel.com

added footnote; I am a bit of a purest in regards to waterproofing design over aesthetics or function. So I always place my roof fans on the location Ram intended them to be - the highest flat surface of the PM roof.

However if you want a roof fan in a different location, although I have never used it I think @Hein PM corrigated roof fan adapters would be “the ticket”. I do not like relying upon sealants in a roof trough situation, but if I had to have it, I would buy these adapters from @Hein

I would also buy them 1st and receive them and use them for the template to mark out the hole to cut - not cut the hole & then purchase the adapters as the corrugations are set in the adapters

Promaster Roof Vent Adapter for 14

 

[RV8R]

Blooper Post;

Ok; having looked at the above post yesterday, I see I should have vacuumed the metal filings from the roof, while I still have a scaffolding up. I will attempt to clean those up today. It is cold out 1C & night & 7C during day high, so I suspect the self leveling sealant will take a bit to “set up”. I do now want these steel filings getting trapped in the top of the sealant.

Also; when I set up scaffolding I ensure the crossbrace slope matches the fascia board of the house ! Just kidding 😜

 

[RV8R]

Ok; Roof vacuum cleaned up the metal cuttings from the hole;

 

[Roblee]

I fought those 4 dang screws too! Thanks for the tip.