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Old 06-06-2019, 07:32 PM   #41
SuziesMontana
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I've seen a few people talk about using Radiant Barrier material on their slide outs and windows. One person said if it is installed inside the window the reflected heat would damage the window. Has anybody actually damaged a window doing this?
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Old 06-06-2019, 08:27 PM   #42
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I've seen a few people talk about using Radiant Barrier material on their slide outs and windows. One person said if it is installed inside the window the reflected heat would damage the window. Has anybody actually damaged a window doing this?

I keep it on my back window all year long, 5 years now and it hasnít damaged anything yet. It might any day now canít ever tell but Iím not overly concerned.
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Old 06-07-2019, 06:33 AM   #43
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Have you checked to see if your air ducts are clear and unobstructed. There have been reports of collapsed ducts which could reduce air flow. Going over your rig with a fine tooth comb to find where air is "leaking out" and sealing those culprits will help. Cold air sinks so checking the basement and anything connected to it would be the first place I'd check.
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Old 06-07-2019, 08:53 AM   #44
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Originally Posted by SuziesMontana View Post
I've seen a few people talk about using Radiant Barrier material on their slide outs and windows. One person said if it is installed inside the window the reflected heat would damage the window. Has anybody actually damaged a window doing this?
This is only typically an issue for insulated (dual pane) windows. The reflection of heat in from the exterior, then reflected back through the same space can super heat the space between the glass and break the seal, which will eventually cause fogging between the glass. The window warranty will likely also be voided with interior reflective films on dual pane windows.

Most of us likely have single pane windows so not an issue.
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Old 06-07-2019, 02:43 PM   #45
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Here's a wild thought for the design engineers - design a big roll over cover that arches over the roof and can with stand reason wind. Grain hauling semi trailers are and example - not applicable if you have solar installed. or maybe that's part of the answer - use stand off solar panels and completely cover the roof - blocks the sun and provides air flow
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Old 06-07-2019, 04:48 PM   #46
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Some people have been removing every other slat in the vents. This has been documented on Facebook.
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Old 06-07-2019, 05:01 PM   #47
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For Ram Montana here is what you want. I have talked to 3 people who own these and they say they work well at helping the cooling.

https://www.shaderv.com/
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Old 06-07-2019, 05:10 PM   #48
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Some people have been removing every other slat in the vents. This has been documented on Facebook.
First you make sure your return airs are open using the PVC pipe. Then you open the supply vents and trim the pvc that it attaches to so it doesn't extend up and partiually block the ducts. Then, it that still doesn't work you add the third AC so that you can run all three at the same time, then you're cool. You know how I know.
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Old 06-07-2019, 07:02 PM   #49
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I just finished taking all the vent covers and returns off. Wow, what a mess you can see with your cell phone taking video of duct works. Collapsed is a pretty true statement. Installed PVC everywhere. Trimmed all vents too. And closed two vents in master bedroom. I could really tell the difference in air flow, but will have to wait for the heat in two weeks. Thanks for all the advice.
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Old 06-07-2019, 09:15 PM   #50
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First you make sure your return airs are open using the PVC pipe. Then you open the supply vents and trim the pvc that it attaches to so it doesn't extend up and partiually block the ducts. Then, it that still doesn't work you add the third AC so that you can run all three at the same time, then you're cool. You know how I know.
Ditto here following DQDicks advice. Same result: problem solved!
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Old 06-10-2019, 04:17 PM   #51
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I have a 2020 high country that we just bought. It seems the a/c tracks in the ceiling are rectangular and made of pretty hard foam. Do these collapse as you are speaking about? Or is this collapsing in older models with more traditional round ducting?
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Old 06-10-2019, 06:35 PM   #52
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My last 5er had 2 huge windows on the door side to draw heat. This really helped!
https://www.carefreeofcolorado.com/p...ipblocker.html
The 1st 2' stayed on the awning and rolled. The bottom zipped on easily. 3 stakes and it was cozy. Just a tad over $100
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Old 06-10-2019, 07:40 PM   #53
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I have a 2020 high country that we just bought. It seems the a/c tracks in the ceiling are rectangular and made of pretty hard foam. Do these collapse as you are speaking about? Or is this collapsing in older models with more traditional round ducting?
Its the newer rectangular returns on either side of your AC unit that collapse. The engineers came up with that idea to supposedly make the A/C units quiet (which it does to some degree). However the engineers failed to specify a material that would hold it's shape under the weight of the roof and negative pressure created by the unit. The return air ducts do in fact collapse and it is readily evident if you observe them with the covers off and the AC running. Only reason the discharge ducts don't collapse is the positive pressure of the air blowing thru them.

Its a classic example of an engineer addressing one issue and creating another! Two pieces of 1' 1/4" PVC cut just short of the length of the return air duct covers inserted into the duct parallel to the air flow equidistant from each other and the sidewalls will assist with keeping the airway open.

Cutting every other discharge vent cover vane with a box cutter will improve discharge airflow as well. Between the two mods you will see a major improvement. However you will still be challenged to maintain more than 20F difference from the outdoor temp. If you live or camp in an area where triple digits are common (like us in the SE NM desert) you WILL need a third A/C to keep the rig at a reasonable temp. We have too for the benefit of our two Chihuahuas! It is the primary reason we are still considering buying a house here while I finish my career.
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Old 06-10-2019, 08:42 PM   #54
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Make sure your return duct is fully open, I was having some issues last year and my 4 return air vent were about half closed, I bought 1-1/2 pvc couplers and installed them as far as I could reach and it really help with the air flow. It was 105 today here in San Dimas Ca and it 73 in our 2017 3160RL. Our coach door side faces west and we do have trees that partly block the afternoon sun.
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Old 06-10-2019, 09:17 PM   #55
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Make sure your return duct is fully open, I was having some issues last year and my 4 return air vent were about half closed, I bought 1-1/2 pvc couplers and installed them as far as I could reach and it really help with the air flow. It was 105 today here in San Dimas Ca and it 73 in our 2017 3160RL. Our coach door side faces west and we do have trees that partly block the afternoon sun.
I have the same trailer but I only have two return vents in the living area. Where are your four vents?
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Old 06-10-2019, 09:56 PM   #56
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Just mentioning that this thread was started in August, 2014. I figure they have figured it out by now...you think?
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Old 06-10-2019, 11:50 PM   #57
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Just mentioning that this thread was started in August, 2014. I figure they have figured it out by now...you think?
Not on my2017 but the 2019 has been fine. Still going to see what August is like and may add 3rd 16k ac. So far 94?has been good.
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Old 06-11-2019, 08:12 AM   #58
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This will be the third day with the heat index over 105. With both airs on we can keep the interior about 77 during the day. Filters just changed and I keep both air conditioning fans on high to keep from freezing up airs.

Went up on roof yesterday morning and removed air conditioner tops thinking maybe each units needed a good cleaning. They were in good shape so that was a waste of time.

The only other thing I can think of doing is slide toppers. I have never really thought they were worth it for just keeping junk off the top of my slides, but could they be worth it for keeping the interior cooler?
I have a 2017 Alpine. Had same issues with cooling. I added additional return air vents one underneath each ac unit. Then i replaced all the vent grills with directional ones that close. These allowed more air to flow plus now i can close other ones to force more air to other areas. This was a big improvement.
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Old 06-11-2019, 08:28 AM   #59
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look up - www.shaderv.com

good ideas above - not sure if anyone mentioned cutting every other blade in the blowing vents. To see if it might help, just pop two of the directing vents out. Certainly blocking the stairs help.
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Old 06-11-2019, 08:33 AM   #60
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E Rod, where did you get the directional grills from? I'm guessing these are all pretty standard in size. I did remove one of mine and the difference was pretty dramatic.
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