While this would apply to any car, I think it has particular concern to wagons. Are there any steps anyone has taken to control condensation inside the roof of their wagon? I'm going to be repainting the 65 Fury wagon and was even considering adding monstaliner (tintable, untextured bedliner/floor liner). I don't have a climate controlled garage so there is still a lot of humidity and condensation particularly in the spring and fall. Beyond that, this is a car I intend to drive a lot, so it will spend time outside.
Roof condensation
- Thread starter RCB
- Start date
GJS
Senior Member
Not really sure what to tell you on condensation once the car is built but I will say this, invest in at least a small dehumidifier and at least curtain off the car before you shoot. I painted a 66 bug in my way way wet basement using a crappy old compressor (aux fed by a tire pump... no ****), and inline moisture filter and a rather cheap gun... the only thing I did beyond the call was to curtain the area the car was in and dehumidify and heat said area.
Yatzee
Active Member
saylor
Senior Member
i bedliner - ed my roof exterior, and its the 3rd strongest thing on my car. that chit is no joke.
i used a roll on bedliner from oreallys auto.
anyways i wouldnt say this will PREVENT moisture, but the moisture isnt going to penetrate thru it, thats for sure.
try not to die -
- saylor
i used a roll on bedliner from oreallys auto.
anyways i wouldnt say this will PREVENT moisture, but the moisture isnt going to penetrate thru it, thats for sure.
try not to die -
- saylor
Yatzee
Active Member
You're getting severe condensation on the underside of the roof from moisture that builds up inside the wagon. the size of the metal roof amplifies the amount of moisture condensing. Air on the outside of the roof chills it and moisture on the inside condenses on it even if there's a head liner. Humidity seeps through the headliner but can't escape. To do it right, remove the headliner, insulate the underside of roof with a fiberous underlay to create a thermal break and reinstall the headliner. Same can happen on the exterior side under the right conditions like opening the garage door when it's hot and humid outside. Either that or reduce the changes in humidity in the garage, ventilate or heat the interior of the car ( leave the windows down )or buy an interior style umbrella. Coating it with bed liner type coating will do nothing.
This is a project wagon and I haven't started yet, but when checking it out I noticed the condensation because it is lacking a headliner. The thought hadn't crossed my mind until then. I've noticed it on occasion on my tractors and other equipment when it gets humid. Not a lot... but while I'm doing other things figured it'd be a good time to do it.
thrashingcows
Senior Member
I agree with Yatzee....you need to control the humidity. Leaving the windows open, even when in storage, so air can flow in, around and trough the vehicle will help. A small interior dehumidifier can help as well.
If your vehicle has A/C make sure it's working and cycles when the defroster is on....this will help to clear up the humidity in the vehicle when driving. I unhooked my A/C compressor on my 68 T/C wagon when doing an intake swap and when I was out driving around on a nice spring day the interior completely fogged up due to humidity....stopped and hooked up the power wire to the A/C compressor and within 5 min the interior of the wagon was clear of fogged windows.
If your vehicle has A/C make sure it's working and cycles when the defroster is on....this will help to clear up the humidity in the vehicle when driving. I unhooked my A/C compressor on my 68 T/C wagon when doing an intake swap and when I was out driving around on a nice spring day the interior completely fogged up due to humidity....stopped and hooked up the power wire to the A/C compressor and within 5 min the interior of the wagon was clear of fogged windows.
Wonderwagon
Well-Known Member
my 69 Plymouth wagon has 1" or so fiberglass insulation between the roof skin and the perforated hardboard ceiling pieces, don't recall having a problem except in winter. When all the other windows fogged up. Defroster would clear it. However on my donor car they did fog up without the ceiling and insulation present, after a crawled around raising the humidity level
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