2013 Keystone Cougar High Country 321res 3 slides

Thanks
My last trailer was ten feet shorter and no slides but cooled down with a 13500btu guess I was expecting close to the same. I noticed today that the exterior side walls on the slide outs are black and so hot in the sun I cant keep my hand on them. Thinking of painting them white or some sort of sun shade. Would not have thought of infrared camera. Now I have some options on things to do.

BillB800si wrote:

mguay wrote:
Polar Package is just a sticker in most cases. Check out what I found in my Glacial Package Keystone here.

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You mention you used, "Closed Cell Spray foam" to insulate the flooring of your Laredo. You didn't mention the brand you used. Is this something you applied or had a contractor apply?
Is this a waterproof foam? If not will water splashing up there deteriorate the foam?
In your photos it looks liked the existing insulation had been wet?

Happy trails,

Yes the existing 4'x4'x3" batt that was under the lack tank was soaked! Bayseal is the brand made by Bayer Environmental. I am a contractor but you could do it yourself with a DIY kit from HD or Lowes. My 36'er used about 600bf to do in between the frame rails. The DIY kits usually have 600bf. Yes CCSF is impermeable...meaning water can't penetrate it. I did re-install the coroplast and ran a bead of sealant down the frame to try and minimize water intrusion.
At 30deg outside temps...my furnace runs half as long and there is no more "hot line" on the floor. At it heats up, rather than the heat rising too fast due to it having a draft through the floor to pull in the cold, it is a much nicer even heat. In the 80-90deg range the 13.5k ac purs along and cools things off in no time. Just the opposite of the heat cycle, cold air settles and drags hot air in with it. Now the CCSF stops it from settling out the floor.

Sorry for Hijacking! Sounds like you have a duct that isn't connected in the roof! If you can find someone with an infrared camera. You should be able to walk the roof with the ac on and find the "colder" spot.

Just purchased new Keystone Cougar High Country 321res. It is 35' and has the polar package and three slides. The A/C could not keep up 15000btu. I was told large trailer one unit cant do it. Added 13500btu in the bedroom and slide out covers over all three slide outs along with external sunshades on the four largest windows. The only windows uncovered are four small, on the side of the slide outs and two under the awning area that get shade from the awning. Both A/C units still cant keep up. Bedroom stays cool but the other end of the trailer starts out in the morning at 70 and while running non stop then climes to 80+ by the end of the mid day. This is on a 91 to 95 degree day and we want to go out west to even higher temps. Is something wrong both units seem to be blowing cold. Not sure what to do next, considering covering the remaining windows but then don't know what to do if that doesn't work and I don't think it will. Is the polar package all bull just to sell trailers.

Something is not right with your coach. My Tango is 30 feet and one AC unit will cool it in about two hours from ambient outside of 100F plus to around 80F inside. I think about 20 degrees differential is a realistic value to look for in an RV AC unit's performance.

A few years ago we camped in our TT in Delaware and it was near 100 degrees. We turned on the 13.5 A/C while we were setting up camp, and over the first couple hours it did not seem to work at all in lowering the temperature inside. We figured it was broke. So we left it on and went to the beach for a few hours. When we got back the sun had gone down, and the TT was freezing cold inside. Even longer than a car, it takes a long while to chill a TT that had been baking in the sun for hours. Once you get it cooled off, it shouldn't be a problem keeping it cool.

mguay wrote:
Polar Package is just a sticker in most cases. Check out what I found in my Glacial Package Keystone here.

==========================
You mention you used, "Closed Cell Spray foam" to insulate the flooring of your Laredo. You didn't mention the brand you used. Is this something you applied or had a contractor apply?
Is this a waterproof foam? If not will water splashing up there deteriorate the foam?
In your photos it looks liked the existing insulation had been wet?

Happy trails,

Polar Package is just a sticker in most cases. Check out what I found in my Glacial Package Keystone here.

Well, we've had 86° temps up here in Michigan and the one 15K unit(on our trailer) has kept the trailer cool, even in the full sun.
You may want to check the duct work and be sure that the flexible duct is NOT crushed during manufacturing. There have been reports of Keystone having some problems with the duct work squeezed almost flat in the roof area.
Also the Dometic Air Conditioner (on the 2014 models) has a slide on the A.C. itself that allows most of the cold air to be directed into the kitchen area. Of course it's much noisier using that feature but you do get a lot more cold air directed there.
A 13,500 BTU in the bedroom should be able to freeze you out. It's such a small room to start with.
Good luck,

Travel trailers are not houses. The walls are thinner as well as the roof and floor. As a result the R values of the insulation are less than in a house. Also you only have single pane glass on your windows so there is a lot of heat loss (transfer) through them. In addition you have 91 to 95 degree temps comming at your trailer from 6 sides. (top, bottom, walls, front and back) There are some things you can do to help keep the trailer cooler, but expecting to maintain 68 degrees is not realistic with most trailers of that size. Try to park in the shade, and keeping your blinds closed will help, but in the end if you can keep your trailer 10 to 15 degrees cooler than the outside temp thats pretty much the norm with most travel trailers in hot weather.