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-   -   Hardtop question - heat from sun (http://www.wranglerforum.com/f202/hardtop-question-heat-from-sun-30645.html)

mishel 05-14-2009 06:32 PM

Hardtop question - heat from sun
 
Does the soft top get as hot as the hardtop under the sun? Or even worse? I know my brain is boiling under the hardtop now with AC working at full power, at 30 Celsius outside. Anybody experienced with the issue? :)
I'm still debating with my self rather I should or not go through the painfull process of replacing the hardtop with the soft top...

jk'n 05-15-2009 04:14 AM

OK, I'll take a crack at this one. I've used both. Theoretically, there won't be that much difference between the two because they are both the same color so they should each absorb the same amount of heat. I think the difference though is the plastic of the hard top can store more of it so as cooler air comes in, the plastic will still be radiating the stored heat. The soft top will not radiate any heat so once cool air comes in you get the effect of being cool immediately. If that doesn't work, then taking it down will provide cheap air conditioning. It also looks cooler for people who are observing you from other vehicles :cool:. It's fun to have it down especially for your visitors in the jeep. Give it a try! Worst case, you'll hate it and never put it up again. Best case, you'll never want to take it off and sell the hard top.

I don't know if that helped but, I tried. I really enjoy using mine. My hard top is on two two by fours in the back yard. I'll wash it up and put it back on in late September or early October.

hdgreyrider 05-15-2009 08:09 AM

I think the hard top provides more insulation so yeah it would hold more heat, but I dont see why it would not cool off better using the insulation factor to your sweat glands advantage.

BTW - Congrats on your 100th post.

donnie 05-15-2009 08:28 AM

Out of curiousity, with the new freedom hard top on the 09 s, is there a way to insulate the top?
We have one and it doesnt look like there is much, if any, on it.
Thanks.

mishel 05-15-2009 01:04 PM

Thanks Jk'n, that is exactly the information I needed :) I will give it a try then, I'm pretty sure I will love the soft top :cool: then again, as you said, if not, I will just put back the hard top...

mishel 05-15-2009 01:07 PM

Quote:

Originally Posted by hdgreyrider (Post 372622)
I think the hard top provides more insulation so yeah it would hold more heat, but I dont see why it would not cool off better using the insulation factor to your sweat glands advantage.

BTW - Congrats on your 100th post.

there is a layer of very hot air exactly under the top, that means on my brain, that stays there since I couldn't find yet the exact position of the AC outlets to wash it away... and thank you :)

jk'n 05-15-2009 01:19 PM

Hi mishel,

If you are interested, I have a theory on air conditioning that I've been using for a while that seems to work pretty well. My theory is this: since cold air is heavier than warm I put all of the air conditioned air coming out of the system on the upper most vents (the circle ones in the jeep) and aim the louvres so that the air is thrown diagonally up. I aim the center two up and to the rear. This seems to keep the air from stagnating and creating layers warm up top and cool at the bottom. On long trips the air seems to be pretty well distributed. I don't know if it will work for you but it might solve the problem that you described above. Wouldn't want to discourage you from trying that soft top though. :cool:

jk'n

mishel 05-15-2009 01:26 PM

^ :D thanks, I'll try that tomorrow, if it works, it will save my brain from meting, 'cause I can't change the soft top until next week anyway, I have to get to my grand parents home, far in the country side, where I can leave the hardtop. In the city, where I live, the damn thing won't even enter through the door to keep it in the office (under the meeting table, :D at the end I thought about that as well...)

mntnclmbr 05-15-2009 11:38 PM

Quote:

Originally Posted by donnie (Post 372632)
Out of curiousity, with the new freedom hard top on the 09 s, is there a way to insulate the top?
We have one and it doesnt look like there is much, if any, on it.
Thanks.

Hey Donnie, About the insulation idea, I did line mine with carpet (not shag, sorry) looks great and does cut down on the sound alot, however, I need to say the noise level is nothing in my JK like it was in my old wrangler.

donnie 05-16-2009 07:02 AM

Thanks for the reply.
I take it you did it with indoor/outdoor type?
IF possible, could I get a pic of the end result?
DW doesnt want something that would look funky and clunky.
The reason I thought about it is, like I said, more for insulation than noise level.
Being this is our first Jeep, other than a 69 Bronco, I dont have anything to compare it to.

mntnclmbr 05-16-2009 09:10 AM

donnie, do you have a Home depot or Menards around you? They have automotive type carpet there (for sure at Menards) usually blk or gray - Its soft and medium density, much like what is on the floor but the backing isn't as hard and narly (its called unitary backing), so that it doesn't fray or pull out (its not a loop) and there's no jute on the back making hard. I don't have a pic. we managed to drop the camera the other day and broke it, sorry - Alot of the 97's to 06's hardtops came with lining on them.

donnie 05-16-2009 09:54 AM

There is a Home Depot not far from me.
Ill go by and see what they have.
Thanks.

keneds 05-16-2009 06:28 PM

WOW.....it must really be hot there to go through all of this effort.

keneds 05-16-2009 06:29 PM

WOW.....it must really be hot there to go through all of this effort.:firedevil:

iamagolfspaz 05-17-2009 12:10 AM

You girls don't know what heat is. Today was a nice 103 and its not even summer yet. I will let ya know how well the Jeep keeps heat out when its 115-120.

mishel 05-17-2009 07:16 AM

^:D well, we did have 95 today... and as you said, it's not even summer yet. plus, with only 10% humidity and no wind, starts feeling like hell. Plus, within the city that somehow feels worse.
Jk'n, my brain thanks you, I arranged the AC as you said and now I am much more confortable :) and I have an idea: I'll install upper bars (I have no idea how they are called, the ones to put things on top of the car) and then install a white something inbetween them, to help reflect the sun. I'll let you know if it's fesable... :rolleyes:

donnie 05-17-2009 07:32 AM

Quote:

Originally Posted by keneds (Post 373098)
WOW.....it must really be hot there to go through all of this effort.:firedevil:

IT does get into the 100 s during the summer and being this is my first Jeep, I was asking questions and curious.

jk'n 05-17-2009 07:37 AM

Quote:

Originally Posted by mishel (Post 373270)
^:D well, we did have 95 today... and as you said, it's not even summer yet. plus, with only 10% humidity and no wind, starts feeling like hell. Plus, within the city that somehow feels worse.
Jk'n, my brain thanks you, I arranged the AC as you said and now I am much more confortable :) and I have an idea: I'll install upper bars (I have no idea how they are called, the ones to put things on top of the car) and then install a white something inbetween them, to help reflect the sun. I'll let you know if it's fesable... :rolleyes:

That sounds interesting. There is one rack that I have been eyeballing for possible use on my jeep. Still relatively new on the market so I haven't seen any good reviews on it yet. Here is a link to a site that sells them. They claim no holes to drill. Just bolt on.

mishel 05-17-2009 10:42 AM

^that sounds interresting, I'll search for something similar to find arround here

keneds 05-18-2009 06:23 AM

Quote:

Originally Posted by donnie (Post 373275)
IT does get into the 100 s during the summer and being this is my first Jeep, I was asking questions and curious.

No sweat........(no pun intended)

PocoDiablo 05-18-2009 12:31 PM

It's well known in building, shipping, and trucking industries that painting the roof (or a portion of it) white, or using a reflective or insulating paint can drop interior temperatures quite a bit. I am thinking about painting the center portion of my roof with white paint. If anything, you could try with a water soluble paint as a test to see if it works/looks okay. I saw an all-white top and it looked horrible, so I wouldn't do that...

It also occurs to me that you could apply Dynamat to the interior of the roof which will absorb some heat (or so they advertise). This might also make it a little quieter. However, it's ugly, so then you would probably want to come up with some sort of a headliner as well. That also adds some weight (Dynamat is fairly heavy) which may adversely affect handling and raise your center of gravity, as well as make it harder to remove the top.


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