Skylight catches cold

[dswiss]

The skylight above the dinette did not survive the blistering cold we had in the past few weeks. The cold shrunk the inside plastic trim, resulting in two cracks in the frame, and a crack in the clear plastic membrane.
The question I have is: What is the purpose of this inner membrane? Is it strictly cosmetic, or does it have a function beyond that (condensation?).


thanks.
(Forest River: You should use a polymer with a lower glass transition point and less regrind for this window. )

[hkreck]

You have a Solera? My 24S doesn't have a skylight over the dinette is why I'm asking. What model do you have?

[kidagn11]

My understanding is you can determine the amount of light you want to enter the RV by not using either membrane , allowing partial light thru use of one membrane or least amount by using both.

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[dswiss]

it's a 2013 Solera 24R. The skylight is appx. 2 x 4 and right above the dinette.

[Taylorgso]

Originally Posted by dswiss

The question I have is: What is the purpose of this inner membrane? Is it strictly cosmetic, or does it have a function beyond that (condensation?).
thanks.

My guess is the second plastic (inner membrane) functions as a storm-window does on your home - gives extra insulation, and hopefully traps heat or cold from affecting the coach lounge quite as much. Then of course, the shutters cane be pulled closed for controlling light and heat in the summertime.

[VinceU]

Originally Posted by dswiss

The skylight above the dinette did not survive the blistering cold we had in the past few weeks. The cold shrunk the inside plastic trim, resulting in two cracks in the frame, and a crack in the clear plastic membrane.
The question I have is: What is the purpose of this inner membrane? Is it strictly cosmetic, or does it have a function beyond that (condensation?).

thanks.
(Forest River: You should use a polymer with a lower glass transition point and less regrind for this window. )

Take the inner bubble down in summer and you'll note quickly its a heat barrier. Temps will reach over 100 between the bubbles

[bclemens]

Originally Posted by dswiss

(Forest River: You should use a polymer with a lower glass transition point and less regrind for this window. )

(dswiss: you should use english). Just kidding. None of that means anything to me, but I will pass that on to the engineers/supplier.

I just looked at that skylight because in one floor plan (out of all that we build) we put a flat inner trim like that in the shower area. Not sure why we did that, but Just switched it to a domed inner. Now that has me wondering if the domed top with a flat inner would contribute to heat being capture in there...more so that the domed top, domed inner.