Up on the Rooffffffff

[boatto5er]

I am glad you told me that, you just saved me a lot of work and sweat (not to mention $) for nothing. Out of sight, out of mind. What stain?

Does that mean I shouldn't mount my camera on a balloon and take remote pictures from above the campground?

 

[Bobby A]

Is this what you are seeing on your roof? I just picked my Pinehurst up from service tech yesterday for another problem with a/c (the compressor was cycling on and off making a loud hummmm with the a/c turned off). He had to replace the control board in a/c. I asked him about the green stuff on the roof and he said it was from the a/c bottom tray, where water sits and then drains off. He assured me my a/c and compressor were fine. I did take pictures (just in case).

I took pics today and sent them to Heartland to get their take on it. Mine seems to be darker in color than your pics. I have never posted pics so I don't know how to do it to show you.

 

[porthole]

Those pictures look like the evaporator coils are very dirty.

 

[mjatwalker]

Thats nasty looking!!

 

[geeksrus]

Ours are like the pictures in Timdebs's... not as severe though... very hard to clean off.

Eh!

 

[timdebs]

Just out of curiosity I am going to take the a/c cover off this weekend and see if I can tell what is causing the staining. I will take pictures of what I find. Gus you can take pictures of my roof and I will take pictures of YOU cooking OUR lobsters

 

[boatto5er]

Just out of curiosity I am going to take the a/c cover off this weekend and see if I can tell what is causing the staining. I will take pictures of what I find. Gus you can take pictures of my roof and I will take pictures of YOU cooking OUR lobsters

OK - I confess, NO lobsters. However, I will be providing a bunch of their little cousins on Saturday night...

 

[timdebs]

No, I like the idea of camera mounted on balloon, then I can say see there I am not the only one with a stain on my roof.

 

[donr827]

I would take the cover off the a/c and look at the drain pan. Cleaning the drain pan will probably get rid of the cause.
Don

 

[jmgratz]

Why go through the trouble of cleaning the drain pan cause it will just get dirty again LOL

 

[Bobby A]

Just out of curiosity I am going to take the a/c cover off this weekend and see if I can tell what is causing the staining. I will take pictures of what I find. Gus you can take pictures of my roof and I will take pictures of YOU cooking OUR lobsters

Thanks Tim, I will be curious for your findings.

 

[porthole]

No, I like the idea of camera mounted on balloon, then I can say see there I am not the only one with a stain on my roof.

Like this?
http://www.wired.com/gadgetlab/2009...-mit-students-beat-nasa-on-beer-money-budget/

 

[boatto5er]

Hmmmmm, I've got a cheap older digital camera and can get a styrofoam ice chest from 7-11. Just need the balloon, prepaid phone, and an auto shutter timer.

 

[Rickhansen]

I have the same stains around both A/C's. I believe the staining of the EPDM roof is caused by traces of copper oxide that leach into the the condensate from the evaporator copper tubing sweating. It is probably more prevalent where the A/C's run more often in high humidity, due to more condensate runoff than in other areas.

We've been full-time in Florida for a year and a half, so the A/C's have a lot of run-time from April through November, and there is a lot of condensate runoff due to the high humidity.

Copper ore and copper oxide are green in their natural appearance. When you see old copper pipe, wire, roof caps, etc. the take on a dark patina and eventually green oxidation.

That's my guess anyway. Cheers.

 

[timdebs]

You are correct, I took my a/c shroud off today and it is from the copper tubing on the side of the coil. I have pictures and will post on Monday. Plain to tell that is the culprit.

 

[boatto5er]

"You Dirty Copper!" (with apologies to all my law enforcement friends)

 

[timdebs]

Roof Stain Culprit

Here are the pictures of the green stain culprit. Could we/I paint the copper tubing to stop the tarnishing and run off?

 

[JohnDar]

Here are the pictures of the green stain culprit. Could we/I paint the copper tubing to stop the tarnishing and run off?

Doesn't look like your copper tubing is corroding. The red rust is from the steel parts at the bottom of the tray where the water collects.

 

[Bobby A]

Here are the pictures of the green stain culprit. Could we/I paint the copper tubing to stop the tarnishing and run off?

Thanks for taking the time to do the pics. I sent my pics to Heartland c/s and they sent them to Dometic c/s and they replied back saying to do an amp draw, they also said it looks like an oil leak from a broker line. I'll keep you all posted.

 

[timdebs]

Find that hard to believe. Too many campers with the same stain. I have had 2 different people (techs) look at it and said it was not a problem. Will be interesting to see what they actually come up with. Please keep me posted.