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Old 11-19-2015, 01:25 PM   #1
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Skylight dome Jay Flight

I was reaching over the skylight dome and put my hand on it, not very hard, and it shattered. The material was surprisingly thin and brittle. The trailer is two years old and has been used and stored in the Florida Keys. I realize the sun is strong here but it seems the dome should have held up better.
Should I cover the dome when the trailer is stored?
I am replacing it with a polycarbonate dome from IconDirect. Anyone having experience with them?

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Old 11-19-2015, 02:06 PM   #2
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I agree that the skylight Jayco uses is remarkably thin. I think you made a good decision to replace with polycarbonate. My understanding is that polycarbonate is much more resistant to sunlight and impact damage than the acrylic plastic I believe Jayco uses.

I used a special sealant for Poly skylights like this (clicky).

I don't think that a cover over a polycarbonate skylight is needed.

There's lots of advice and information in forums... sometimes it is correct. For example, all of my posts are made by a political appointee who got the job as a reward for contributions to my diesel bill.

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Old 11-19-2015, 03:21 PM   #3
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Thanks RVhiker, I ordered the sealant that IconDirect recommended for that dome.
I have read that Polycarbonate needs a UV filter ingredient added to the material when made to handle long term UV exposure. But it should be strong, it is used for windshields on fighter jets (:-)).
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Old 11-22-2015, 07:59 AM   #4
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I must admit, I did not know how thin the domes are that came on my new 2016 26BH Elite until I picked it up about a week ago and actually touched them during the PDI. Could not believe it. First thoughts that crossed my mind were snow/ice load and being broken by a small tree branch in a wind storm or something as simple as removing snow from the roof during the winter.

Overall I am extremely happy with the purchase, even though I have not really had a chance to actually use it yet except in the driveway for one night so the kids could try out the new bunk beds

So I think that the two skylights (one in bathroom and the one in the main area that comes with the elite package) will be one of the first real mods next spring. Thank you for the links above for the Polycarbonate domes. They seem pretty good quality and much more robust than the stock domes.

Has anyone replaced the two domes on their 26BH Elite? I have not been up on the roof to measure the sizes and have the following questions:
1) Which P/N or sizes will I need to order from the site posted above?
2) Is there an inner ring or dome that I need to worry about?
3) Will I need extra screws?
4) How many tubes of the sealant will be needed to do both skylights?
5) Any thoughts on the color? (Clear, Translucent, Smoke)

As always, Thank You in Advance for all your help!!
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Old 11-22-2015, 08:46 AM   #5
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Interesting comparison between polycarbonate and acrylic sky lights.

Acrylic vs. Polycarbonate: a Quantitative and Qualitative Comparison –
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Old 11-22-2015, 09:53 AM   #6
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Duke_26, I am still waiting for my replacement so I don't know if the dome comes pre drilled. If not I will just use the screws that are there now. As for sealant what IconDirect sells is a standard caulk gun cartridge so it might do more than one dome, but I won't know until I have done the replacement. You are supposed to run one bead over the screw holes, then cover the edge of the dome flange and screws with the sealant so it might use the whole cartridge. I will post the results when done.
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Old 11-22-2015, 10:02 AM   #7
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Thanks for the link wags999. Unfortunately there is no info on how well either material hold up under long term UV exposure.
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Old 11-22-2015, 04:49 PM   #8
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This is the main reason I ordered mine without the Skylight in the Kitchen, that and the heat it lets in. I kept the Bath one for headroom but will be coating it to protect from the Sun.
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Old 11-22-2015, 07:17 PM   #9
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I am in Florida and the heat in the bathroom from the skylight is 100+ degrees, when the sun hits High-Noon. The bathroom thermostat fan is working hard just to pull the hot air from the skylight area. So I cut a piece of 3/4" Celotex insulation board to the size of the opening, inserted it and it WORKS GREAT.

I also made an insert for the front bedroom skylight.

I was going to add a skylight in the kitchen, but after feeling all the heat from the one in the bathroom I deleted that project.

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Old 11-23-2015, 07:59 AM   #10
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Thanks Don, but we have not noticed any extra heat in the shower where the skylight is so I am just going to install the new dome. There is a frosted glass cover inside the dome so maybe that stops most of the heat. We like the light coming in through the skylight and there are no windows in the bathroom so it would get dark without the skylight.


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