Even though it was 93° with humidity in the upper 70's here today, I finally got a few things done on my Ambo project. I started by removing the remaining lettering from the front over where the cab was.
Then I cleaned the black mold from the surrounding Oak trees off of the roof, and the green mildew out of all the cracks and crevices on the sides. I pressure washed the sides when I first got it almost two years ago, but the top had never been done by me. And from the looks of it, it hadn't been done in the last ten years by anyone else either.
Working with a 2,500psi pressure washer with a 2"-3" wide pattern spray, it took all afternoon to do the top and sides. I was working off of a 6' stepladder instead of just getting on top, because I wanted to find out what was under the black gunk before I put any weight on it. I all looks OK, but I did find one fairly sharp gouge in the sheet aluminum over the area of the side walk-in door, but I don't think it will cause any problems.
The two antennas up there are broken and pretty much trash, so I made two caps to cover the bases when I remove them. I made them out of two old Motorola VHF antenna base covers, and two rubber disk I made out of some heavy gasket material. I will probably install new antennas for some of my communication gear when I get to that point, but in the meanwhile these temporary covers will protect the bases and keep them watertight.
Tomorrow, I'll wash the entire thing with brushes and a product that was recommended to me, called
Jomax House Cleaner and Mildew Killer . According to the product overview...
Jomax House Cleaner and Mildew Killer is a powerful concentrate that you mix with water and bleach to eliminate mold and mildew from exterior surfaces around the home.
- Cleans exterior surfaces of dirt and stains without scrubbing, Kills and prevents mold and mildew for house maintenance
- Can be used on exterior painted, non-porous surfaces such as aluminum, vinyl and wood siding and trim, stained and painted decks and fences, stucco, brick and cement block,will not damage surfaces
- Powerful concentrate can be mixed with water and bleach to make an effective cleaner that requires no scrubbing
- EPA registered mildewcide that kills mold and mildew and prevents regrowth
Since it's mixed with bleach also, I'll just have to see how it reacts with Aluminum Diamond Deck or any other bare aluminum. Anybody else ever used it or have any experience with it?