Need some advice. We have ripped out walls but have left the styrofoam in. Should we replace styrofoam that is black and wet? Or just let it dry out.?Is there a spray that kills mold. So far I have used Minwax Early American stain on both sides of the 1/8 underlay. The stain is oil base. It stains seals and protects. Next I was going to spray on Thompsons water seal to both sides of the underlay. Hubby raised a question about weather the liquid nails would stick onto the Thompsons properly for the new 1/8 Georgia pacific paneling. Not all the styrofoam is wet. My daughter promised she would post pictures tomorrow. We figured out how to take the big cupboard out above the dinette. I ended up ripping out quite a bit of the old wallpaper as it had lost the majority of the glue and was 21 yrs. old and brittle. I appreciate any and all advice from others that have done restoration.

I say you should replace the styrofoam being that it is a porous material. Here's a decent link on mold in trailers. Hope it helps.

How Can I Kill Mold Inside Trailer Walls? | eHow.com

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2404T, 2003 2500HD 4X4 GMC Crewcab w/Astro camper shell
Far West Texas

I know that mold is not good and the styrofoam should be removed. I just need to convince my husband of this. The styrofoam is tight to the fiberglass skin. All three layers were laminated together. The styrofoam has gouges from scraping the 1/8 underlay off. We had a busy day and I didn't get toask my daughter to post the pictures. We went to get tires for our f250 and had to get them ordered in. Dunn Iire should have them in by mid day Tuesday. I keeping asking these questions and not getting answers. Would Thompsons clear water seal be able to adhere to liquid nails on the 1/8 underlay.? How do you get the last pieces of soggy paneling/underlay that is stuck between the halves? Jack up tyhe top? or would changing the bad seal give me a way to clean out the last of the soggy mess? Just trying to do this repair correctly. Any advice appreciated.

Here are the pictures I took with my daughter's camera.I'm not good with most electronic devices,so the pictures are a bit crooked.

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I couldn't upload all the pictures I took in one post.

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1st. set of pictures #3 shows how to remove the trim ring from the inside of the window. #5 shows where the Lexell caulk was applied above the trim on the upper half. This is where we think we got all our water intrusion.

Today 9-30-211 Posted pictures of our restoration in progress Posted under off topic. Looking for answers to several questions. Thanks sam

Sam,
If it was me I would try to replace the Styrofoam, also if you have a dehumidifier, put it in the trailer and run it while doing the repair, or a small heater, anything to get rid of the moisture.

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Rich
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(215TL) - 1995 21' TowLite
(2209T) - 2009 22' TowLite
99 Ford Explorer 4DR 4X4

I agree that the styrofoam should come out. It is defeniately a "Bear"job. Styrofoam is not that expensive. This way we will have all new materials,styrofoam,underlay and paneling. Last night I did a search on google for RV interior wall replacement and am still going through all the sites information. I told hubby that we should run the furnace to speed up the drying process. He thinks we would have to sleep in the trailer to monitor the furnace. Maybe I can sleep over later this week after mytwo MD apts. Oct. 21st is my rotator cuff surgery. I'm hoping to have everything torn out before my surgery.

Today was a good day as we got to work on our restoration. Forgot to bring the camera with me. Another HI Lo owner that did construction for a living helped us. He has changed the cables on a previous HioLo. We cut 2x4's and placed them at the four corners and used the powerjack to raise the tophalf up more. I was able ro get some more wet underlay and paneling out withmy locking forcepts and a stiff putty knife. I,m hoping the wet area between the upper and lower half will dry out,,,It will be impossible to get all the "junk out." Other areas of the trailer have dried out beautifuly.Hubby took apart the Electrical cover on the outside and repaired the wood frame around the outlet on the inside. Filled the air leaks with expanding foam. This was a source of the water leaking in. He plans on using butyl tape to complete the repair on the outside.