Reflectix... how much to do interior? - Fiberglass RV


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Old 02-28-2018, 08:20 AM   #1
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Name: Rex
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Reflectix... how much to do interior?

Going to be refurbishing/restoring my '77 13' scamp.

How many feet of a 4' roll of reflectix is needed to insulate the interior?

I'm going to be ordering from online so will help if I can get close to right amount.

Thanks for help!
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Old 02-28-2018, 08:32 AM   #2
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I would check at the box stores then you can return some things I haven't found that much difference in price!


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Old 02-28-2018, 08:59 AM   #3
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Sides: 6x10x2=120 sf
Ends: 6x7x2=84 sf
Ceiling: 7x10=70 sf

120+84+70=274 sf

274/4=68.5 lf

Add 20% for wastage, about 82 linear feet. If, as I recall, it comes in 25' rolls, I'd order 3. If you come up short, you should be able to pick up extra at most big box home supply stores.

Thinking about how you might actually piece it together, I come up with the same result, about 75 lf. One long piece across the ceiling from front window to back window, 12'. Wrap around the bottom full circumference, about 35'. Two more 12' lengths to wrap the upper side wall onto the ceiling- the tricky part.

Hafta ask, though... What do you have on the walls now? Ensolite can almost always be salvaged, and it is a better insulator than Reflectix. You can paint it or cover it with headliner for a like-new appearance.
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Old 02-28-2018, 09:08 AM   #4
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Originally Posted by Jon in AZ View Post
Hafta ask, though... What do you have on the walls now? Ensolite can almost always be salvaged, and it is a better insulator than Reflectix. You can paint it or cover it with headliner for a like-new appearance.
I think it's Ensolite but it's coming apart and off the walls. The white vinyl layer seems to have separated from the rest of it in lots of areas. I haven't yanked it yet. I considered trying to work with it but it's pretty bad. Also very moldy.



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Old 02-28-2018, 09:17 AM   #5
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Rex, appears you deleted a post, so I'm not sure this is helpful or not...

Your description of the Ensolite does sound pretty bad. Post some pictures and others more experienced might be able to tell you whether it's worth trying to salvage.

Best wishes! Hope you share photos and updates as you go.
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Old 02-28-2018, 09:29 AM   #6
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Originally Posted by Jon in AZ View Post
Hafta ask, though... What do you have on the walls now? Ensolite can almost always be salvaged, and it is a better insulator than Reflectix. You can paint it or cover it with headliner for a like-new appearance.
Not sure what happened let me try again. The vinyl layer has separated in most of it and is falling off. Plus lots of mold.

Here are some pics:


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Old 02-28-2018, 09:45 AM   #7
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If you're looking to insulate the trailer, Reflectix has an "R Value" of about 1, (i.e. next to nothing,) making it a not-so-good insulator. Just me, but if I was going to go through all the headaches and trouble of installing insulation throughout, I'd want something that actually afforded me with a reasonable degree of insulating value. YMMV
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Old 02-28-2018, 09:51 AM   #8
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insulation

greg I had a 40ft eagle bus that had been converted the guy put 1/2in foam then naughahyde over that I don't think that was good either. there is just so little space in these eggs makes it sort of tough to really do a good job.

do you have an idea?

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Old 02-28-2018, 09:58 AM   #9
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Not really Bob. I just live with the factory installed "rat fur" carpeting that is glued on inside my trailer. It isn't much of an insulator either, but I'm not about to rip it out. When it comes right down to it, most fiberglass interior coverings offer little in the way of insulation, and are only there for two main reasons. One is to keep condensation from forming on the inside walls, and the other is to keep the sunlight from shining through the fiberglass if there wasn't anything covering it.
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Old 02-28-2018, 10:08 AM   #10
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You can still get Ensolite without the vinyl facing. You could always put it down and then put "rat fur" on top. Here is a DuckDuckGo search for it:

https://duckduckgo.com/?q=ensolite+i...on&t=hf&ia=web
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Old 02-28-2018, 10:16 AM   #11
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Casita Greg is correct. Reflectix is not the insulator people think it is. But it may or may not be better than nothing as a vapor barrier & minor insulator.

Now, in terms of reflecting heat coming in through glass, its foil surface makes it fairly good at that. Not certain, it may work even better on the outside of glass. But that's usually not practical, and would degrade it.
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Old 02-28-2018, 10:28 AM   #12
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I added pics to my response which I guess has it waiting for moderator approval.

Anyway... I assume it's ensolite on the walls of my scamp. The vinyl layer has separated from it and is falling off in most of it. Also has lots of mold. I have not ripped it all out yet. It's a pretty big mess though. And I would like to get working on it in the next weeks.

Just trying to research and make best choice considering circumstances.
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Old 02-28-2018, 01:17 PM   #13
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Rex, itís a lot of work but if you are a handy man with patience itís doable. Here are a couple of pics, I have just completed mine 1 month ago. You can also check my link for details.Click image for larger version

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Old 02-28-2018, 01:19 PM   #14
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Sorry forgot the link for details.
Trillium 4500 (quebec)
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