Tongue & Groove or Shiplap? - Ram Promaster Forum
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post #1 of 61 Old 07-08-2019, 07:04 PM Thread Starter
AnnaIdaho
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Tongue & Groove or Shiplap?

I'm starting out my build on my 2018 Promaster 2500 136 and am wondering what the pros/cons are with Tongue and Groove vs Shiplap on the walls.

I am also going to paint the boards white. Any tips on paint? I'd prefer a primer/paint combo, but am wondering if it's better to use a separate primer?

Thanks!
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post #2 of 61 Old 07-08-2019, 07:14 PM
RDinNHandAZ
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It will look like the inside of a painted sauna?
Both are fine but I prefer tongue and grove as the pieces fit together AND are held in alignment where shiplap lets the joint curl open. Use thin material like 5/8" not the usual 3/4”. Remember it’s not a house and you don’t want it to weigh as much as one.

I’d use sheet goods and make a cardboard template so they fit nice an snug, but you didn’t ask that did you?

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post #3 of 61 Old 07-08-2019, 07:25 PM
akarmy
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Quote:
Originally Posted by AnnaIdaho View Post
I am also going to paint the boards white. Any tips on paint? I'd prefer a primer/paint combo, but am wondering if it's better to use a separate primer?
While it does depend on the specific product you are going to paint with, it's almost always better to use a dedicated primer under your paint. It will provide a better finish and hold to the wood better long term. One primer I like using is Bullseye Bin Primer as it seals in any knots or other areas. It's very easy to sand to smooth out before you put on the top coats. I've used it a bunch for house trim projects. That said, there are many products out there that will work just fine.

https://www.rustoleum.com/product-ca...c-primer-white

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post #4 of 61 Old 07-08-2019, 07:33 PM
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Some canvases I make....piece of plywood covered with bullseye primer covered with canvass covered with gesso....bullseye2...primer& sealer
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post #5 of 61 Old 07-08-2019, 07:46 PM Thread Starter
AnnaIdaho
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Quote:
Originally Posted by RDinNHandAZ View Post
It will look like the inside of a painted sauna?
Both are fine but I prefer tongue and grove as the pieces fit together AND are held in alignment where shiplap lets the joint curl open. Use thin material like 5/8" not the usual 3/4”. Remember it’s not a house and you don’t want it to weigh as much as one.

I’d use sheet goods and make a cardboard template so they fit nice an snug, but you didn’t ask that did you?
Thanks so much for the advice! I have been considering 1/4" tongue and groove. I don't feel like it'll look like a painted sauna. See pic for reference (not my van).
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post #6 of 61 Old 07-08-2019, 08:19 PM
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post #7 of 61 Old 07-08-2019, 08:40 PM Thread Starter
AnnaIdaho
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Are you going to do it like post 5 or infill like https://www.promasterforum.com/forum...7&postcount=39?
I'm going to do it more like the picture is #5 , but have the bed area recessed to allow for more bed room.
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post #8 of 61 Old 07-08-2019, 10:20 PM
MsNomer
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Tongue and groove, then. Prime and paint all sides of every board.

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Website detailing my build: msnomersvan.wordpress.com

2014 White 136" HT 1500 Gas
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post #9 of 61 Old 07-08-2019, 11:45 PM
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Painting the back sides helps prevent mold growth; colour doesn't matter. Paint stores/departments often sell mis-mixed paints for around $10/gal. Look for bath and kitchen paints, which have mold retardants as an added bonus.

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post #10 of 61 Old 07-09-2019, 12:11 AM
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Steve, the mold retardant never occurred to me 4 years ago when I was painting. Excellent suggestion.

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