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Unread 07-10-2013, 10:00 AM   #1
AveryZJ
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Headliner Question

I will be replacing the headliner in my jeep pretty soon and the material I am using for the new headliner has no foam backing. I was wondering if this would be a problem? Also since I was looking at some insulation type materials, would reflective insulation (typically used in houses) work well to keep the jeep from getting so hot?

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Unread 07-10-2013, 01:15 PM   #2
Oldfrog
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I thought of using that housing permaboard too......until I realized that it's HIGHLY flammable. Having hot melted styrofoam dripping on my head just isnt something that gets me excited ...so I opted not to add it. In fact, I just removed the headliner itself, removed the material and foam using a shop vac, then sprayed truck bed liner on it. It's neat, clean and will never come down again. I should have done it years ago. I like the clean look and so does everyone who's seen it. I even removed the material from the visors ( then left them alone) and the overhead console....and sprayed bedliner on the edge of it.
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Unread 07-10-2013, 01:56 PM   #3
RoldGold
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Any pictures of that headliner/bedliner job Oldfrog? Sounds pretty sweet!
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Unread 07-10-2013, 02:34 PM   #4
Kevinyj95
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You don't need a foam backing. I used real tree cammo fabric. Looks badass. But Its falling down now because I left a pan of coolant in the back while I was working on another car on a hot week. moisture sucks for headliners. insulation doesn't do much def wont keep heat out perhaps in if your vehicle is airtight. But then theres so many other gaps.
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Unread 07-10-2013, 03:20 PM   #5
zjosh93
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Regular headliner material has the foam on it partly because it gives the spray adhesive something to stick too without messing up the fabric. If you just put cloth on the headliner you need to be careful not to use too much adhesive or it will bleed through the cloth and look like crap. You can do it and a lot of custom car shops do it all day long but you have to be good with the adhesive. Why do you want to use regular cloth? Headliner material is pretty cheap and works pretty well.

Having driven a black car in Texas with and without the headliner I can say that the regular headliner does cut down on the amount of heat coming through the roof. Way hotter without the headliner. It's not so much the insulation though as it is a radiant barrier. You can probably find radiant barrier like thin aluminized mylar for pretty cheap online. I'm not sure it would help much but it wouldn't hurt.
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Unread 07-10-2013, 04:03 PM   #6
AveryZJ
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I'm using a vinyl that matches the interior such as the dashboard and console. So I'm not worried about it bleeding through. I just wanted to know if the reflective insulation would work at all. They have some for pretty cheap at lowes.
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Unread 07-10-2013, 07:45 PM   #7
Kevinyj95
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Would be interesting to take before and after temps. I didn't notice any difference but I live in maine.
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Unread 07-10-2013, 10:14 PM   #8
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Use Dynamat, it makes a HUGE difference, both in the summer and winter.
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Unread 07-11-2013, 06:34 AM   #9
leftfield6
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I took my headliner board out of the ZJ, took it to an upholstery shop, and they did the replacement of the fabric with standard headliner foam backed material. I considered vinyl or bedliner, but I like the sound absorption of the fabric headliner is not negligible.

The shop did a great job of applying the fabric smoothly over all the contours that the headliner board has, especially in a sunroof equipped GC. Charged me $80.
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Unread 07-11-2013, 07:11 AM   #10
Kevinyj95
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I compared my 98 5.9 to the 95 5.2 one having stock headliner the other having my camo headliner. There is no difference in temp in the sun or sound when raining. The feel of the cushion is the only difference. It does the same without the thin layer of foam. Its just a spray on backing. I spent 18$ doing mine. I don't think I would bother spending 80$ Seems like I could spend that on gas or a part or a tire. Who knows maybe Chinese food.
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Unread 07-11-2013, 07:15 AM   #11
Kevinyj95
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I was thinking of running another test on the 95 adding a layer of rubberized coating to the roof. Which I wouldn't do because I would hate to cut my head on a bare roof. But maybe then apply the headliner. The thing to remember is that the back of the board is insulated. With that gray dryer lint looking crap. So the yellow crap doesn't do much of anything.
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Unread 07-11-2013, 07:22 AM   #12
leftfield6
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Quote:
Originally Posted by Kevinyj95 View Post
I compared my 98 5.9 to the 95 5.2 one having stock headliner the other having my camo headliner. There is no difference in temp in the sun or sound when raining. The feel of the cushion is the only difference. It does the same without the thin layer of foam. Its just a spray on backing. I spent 18$ doing mine. I don't think I would bother spending 80$ Seems like I could spend that on gas or a part or a tire. Who knows maybe Chinese food.
It's not that the headliner blocks sound from coming in from the roof, so rain isn't the issue. It's that having a fabric covered headliner means one less hard surface inside the interior space. There's a really geeky PDF research study I could link to here that shows having a "soft" headliner versus a "hard" headliner decreases interior sound levels by 30%. But it's not by blocking sound from getting in, since your roof is not a major source for noise. It's effective because it absorbs sound, reducing the effect of your interior being a big echo chamber.

I know the fabric headliner is a little more expensive compard to a can of bedliner, and to some it may not have the right amount of "rough and tumble" image for your Jeep. To each his own. I'll give up a few nights of chinese food to drop the decibel level inside my 5.9 by 30%.
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Unread 07-11-2013, 08:37 AM   #13
Kevinyj95
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Lol. I highly doubt its 30%. I don't have a spray on I have cloth. I can see with no headliner there being sound. like yelling into a cookie sheet. But im pretty sure as long as you have the headliner and the backing with the gray insulation up top your not getting a 30% increase. I mean you have windows. Unless you have supersonic hearing your not going to notice. You also have a sunroof. right above your head. Its most likely a 0.8 or 0.4 increase that I would believe. Your research sounds like a dirty joke I heard once. I cant tell a difference in the noise level in either jeeps. Other than when its running my 5.2 has a Flowmaster Exhaust. My 5.9 is stock. Only for a short time. All the research is out the window if one is open or the radio is on anyways. Who drives down the road in complete silence. I can see if you drive a bmw or a audi but its a jeep. Its suppose to look badass not like a old couple own it and take it once a year to the grocery store. But to each his own. Mine came out nice looked professional didn't look rough at all. couldn't really tell the yellow crap wasn't there unless you touched it.
I suppose if I had 80$ to give away I might do it so I didn't have to do it myself. But Im not in the habbit of throwing away money that could go to something else cool.
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Unread 07-11-2013, 09:02 AM   #14
leftfield6
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Quote:
Originally Posted by Kevinyj95 View Post
The thing to remember is that the back of the board is insulated. With that gray dryer lint looking crap.
Nope.

I just put my board back in a few weeks ago. Back of the headliner fiberglass board is not insulated.

Yes, you're always going to have the hard reflective surface of the windows. So does every vehicle on the road. So what. Having a hard surface on the headliner would more than double the hard surface inside the vehicle.

Seriously, $80 is going to kill your budget? Sounds like you're having to invest time/effort/money a second time because your solution failed.
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Unread 07-11-2013, 09:18 AM   #15
Kingr98
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Also, reguardless of whether you choose foam backed or plain fabric, make sure that it has some ability to stretch. After I took my headliner out, I came to the realization that it is far from flat. If you want the material to lay on smoothly without creases or wrinkles, it will have to stretch into places around the sun visors, sun roof and the OS handles. Before you spray the adhesive, lay the material on board and try to push it into all of the indentions smoothly.

Don't forget to cover the sunvisors to match.

I agree with leftfield, my headliner board did not have any insulation on top. Maybe different years used different boards...1998 vs 1995.
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