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rk911's avatar
rk911
Explorer
Mar 11, 2016

Interior vs Exterior Solar Shade

we have a 2016 Itasca Suncruiser 38Q which came equipped with a power internal solar shade for the windshield. this is the type that blocks heat but still allows light thru.

we're headed for Mesa, AZ for a little baseball action and from past experience the sun can be brutal in terms of heating up the MH interior. in prior years with our previous MH I used the foil-backed insulating material on the interior side of the windshield to control the heat. that worked very well but the downside was perpetual night inside. That was most unpleasant.

The dealer from whom we purchased our Suncruiser tells us that the interior solar shade will work well in controlling heat in the AZ sunshine but I can't help but be skeptical as the windshield glass will still heat up and radiate that heat to the interior. I'm thinking it would be more desirable to keep the windshield from heating up in the first place.

Before I go out and buy an externally mounted solar shade I'm hoping to hear from folks who have used the interior solar shade. was it effective or not? did you end up installing an exterior solar shade to control heat? and if yes which brand did you choose?

if we opt for an exterior shade my priorities would be effectiveness, ease of installation/removal/storage and total value in that order. Recommendations?
  • IMHO, the exterior shade is probably a good investment. I got one on Amazon for about $25.00.
  • just get a large one common for cars, rarer for motorhomes that "springs" open and block the windshield from the inside.
    bumpy
  • We got a new interior sun shade for our new to us motorhome. The suction cups don't work on the dotted upper part of the windshield. Don't know if this will be a problem or not. The old one we had was great - went edge to edge inside and blocked most of the heat. Didn't want to have to deal with a wet outside one so went with inside again. But then we don't go south in the summer. I am thinking that an outside one would work better in that kind of heat.
  • We use the Magne Shade - my opinion is you have to keep the heat on the outside. You can see nicely through the Magne Shade.

    Bill
  • We have had both exterior sun shades and interior sun shades. My current coach has interior roll down sun shade. It is 'adequate' for the Arizona sun, but not great. Our previous coach had snap on solar shades for the outside front windshield and were superior to keeping out the suns heat. The problem with interior shades is the sun comes in through the windshield and gets trapped in the space between the windshield and the interior solar shade and the heat just builds up and builds up ..... and radiates right through the interior solar shade. Its a matter of physics. The best heat prevention is to block the sun BEFORE it comes through the windshield.
  • We have a 2014 38Q. Came with the same MCDs as yours. I installed Sun Guard shades on the exterior windshield and front side windows. Best of both worlds. Our S&B is in inland SoCal. I use the rig as a man cave while there. 105 is common is Summer. The Sun Guards made a difference. I don't bother with them on more temperate days/months. Enjoy your rig. I hope you missed out on the lousy Lippert slides and levelers.
  • Ed_Gee wrote:
    We have had both exterior sun shades and interior sun shades. My current coach has interior roll down sun shade. It is 'adequate' for the Arizona sun, but not great. Our previous coach had snap on solar shades for the outside front windshield and were superior to keeping out the suns heat. The problem with interior shades is the sun comes in through the windshield and gets trapped in the space between the windshield and the interior solar shade and the heat just builds up and builds up ..... and radiates right through the interior solar shade. Its a matter of physics. The best heat prevention is to block the sun BEFORE it comes through the windshield.


    I think I agree with you,Ed. seems only logical to me. we don't want to lose the outside view or turn the interior into perpetual night time. our site in AZ this year faces north so it shouldn't be as bad as the year when we faced south.

    the MagneShade looks promising as I would prefer not to have to drag out the ladder or foot stool to install or remove. for those who have them how well do the magnets hold in the high speed springtime winds in the southwest? does MagneShade have local dealers/installers?
  • I can't comment on which is better as to inside or outside shades by experience but came to the same conclusion as you and went with an outside shade.
    I was preferring to not put a bunch of snaps or Velcro or twist locks on my MH and wanted ease of installation and when I was researching I was in Key West with a bunch of RV's, some of which had the magnet shade and they admitted (and I witnessed) that sometimes with a high wind gust (30 or more) that it might get blown off if the wind angle was right, but they did stay on most of the time just fine.
    I also saw a "Prompt" brand sunscreen http://www.rv-sunscreen.com/ and it doesn't use snaps, but instead straps to the side window frame, and works great. The people I talked to with this said theirs has never blown off even though some mounts use suction cups depending on the window/door configuration. My MH is a gas unit and I can install it myself, from the ground, in less than a minute without a ladder but that might not be true for a taller DP. You will need to be able to reach about the bottom 12 inches of your side window. You can see how it mounts on their website and I like mine a lot.