Class C Over Cab Bunk Floor

Some readers might be thinking that I am living in an Egyptian river since I haven’t really talked much about the floor in the over cab bunk. It’s been foremost on my mind. I’ve just been waiting to make a full assessment before blogging about it.

Last night, I pulled up the flooring in the wet corner of the loft to see how the floor is put together and to help me determine if I need to replace it, too. The most important thing I learned with my house is that a soggy floor needs to be replaced. It can’t just be ‘dried out.’

The top layer, thin paneling, was dry and solid. Under it was a clean layer of styrofoam. Under that was a section of sodden paneling. Under that was wet but clean styrofoam, and under that was the exterior shell.

I peeled back the top layers of paneling and styrofoam only as far as needed to expose the entire extent of the rotten second level of floor, which is a section about 1′ x 1′, and the floor was damp about 3′ x 3′.

The floor of the over cab bunk in a class C RV can be an integral part of the front end structure, depending on how the rig is built. In Miranda’s case, she’s a higher end unit with a steel frame. The floor in the bunk literally floats. The bottom layer of styrofoam isn’t even glued to the shell. I was able to saw out a chunk of both layers of insulation and paneling and just pull them right out with no resistance.

Since the rest of the flooring is fine and dry, I’ve decided to only replace the wet section the same way it was originally built–styrofoam, paneling, styrofoam, paneling. I don’t see any logical reason to pull out the whole flooring and replace it; it’s just not needed. However, I am going to replace the top layer of paneling with a layer of 1/2″ plywood. There’s no need to go to 3/4″, the 1/2″ stuff will already be about four times thicker than what’s there already!

Because of the tight quarters in here, I’ll need to do the flooring in chunks. Like most class Cs, the floor is C-shaped:

I would have loved to divide the floor into six manageable panels, but the gaping hole over the cab makes that impossible. Instead, I’ve decided on four easy to install sections and one big panel:

The drying out process is going very well. I’m alternating between the dehumidifier and the heater. It also helps that I pulled out all that sodden paneling. I’m hopeful that I will be able to get up there to work on Tuesday; I don’t want to rush the process. Monday, I’ll go to the building supply centre that Donna mentioned and see if they can cut my plywood and paneling for me so I have less to do when I get the materials home.

Donna also gave me an alternate solution to the pallets, but I’m not willing, or able, to invest along the lines at this time. The loft floor is going to be 1/4″ to 1/2″ lower than what it presently is with the piece of plywood covering the centre hole and it will be all on one level, which means I can lose the bottom layer of the pallets and gain another inch and a half or so of space. So, that’ll mean nearly 2″ of extra head space when I get the bed put back together. That’ll be worth the work!

Until I know for sure that the leak is fixed, I’ll follow my readers’ suggestion and paint the floor instead of applying vinyl.

Sleeping in the study is going to be a trial. This mattress isn’t meant to hold an adult weight and I’ll admit that I’m combing the classifieds for a twin-sized mattress. 😀 Otherwise, the rig is reasonably livable right now even though the library is stuffed to the gills. I spent a couple of hours today moving and organizing things so that the kitchen, entrance, and dressing room are clear and easy to navigate (the study’s fine). Because the loft is a project that will drag on for probably two weeks, it’s imperative that I keep the rest of my home functional. It’s been my habit in the past to use renovations as an excuse for keeping the home in a dysfunctional state that justifies eating out, but this time I’m breaking the cycle. And I’m off to make dinner, all this work makes me huuuungry!

Checking Out the Loft

I just went to check out the loft and was shocked to already see an improvement; 95% of the wall is perfectly dry and normal-coloured. Of course, the bottom part is still sodden as is the joist along the front, six inches of which got soaked. I used a scraper to get rid of the top layer of wood that is the darkest on that joist and was relieved to see damp, normal-coloured, wood appear along most of the section.

The wall has a final layer of paneling remaining, and it is glued to styrofoam. I did some test scratches and the styrofoam looks clean. So, I tried the scraper technique on the paneling and got the same result as on the joist. I therefore don’t think I need to replace the styrofoam insulation, just the pink stuff along the front.

I sprayed the whole area with rubbing alcohol to kill spores and I have the dehumidifier running. I tried running both it and the heater on low on the same circuit, but failed, so I decided to just go with the dehumifier for now since it’s nice having the heater in the study so I don’t have to run the furnace. I’m debating whether to use a hair dryer on high directly on the wet, wondering if that would be silly and futile.

I wish I’d thought to inquire about paneling when I was at the Home Hardware today. I hope I can find something smaller than a full sheet.

Covering Cabover Seams With Eternabond

Eternabond is a sealing tape that is most commonly used in roofing applications. I’ve used it around the skylight over the shower, so I knew that it wouldn’t look great on my seams but it would get the job done. Finding the product in Canada is tough and it is ridiculously expensive when you factor in shipping. I decided to try both the RV store and the Home Hardware here in Osoyoos before caving and paying the $100 to have some sent in from northern Ontario.

The RV store didn’t have any and the lady had never even heard of it, but the detour was worth my while because they had a cover for my porch light, the original cover for which disintegrated when I replaced the bulb early this fall.

The cashier found that $5 for the cover was expensive, but I didn’t find it that bad.

Next, the Home Hardware. They had 5′ rolls of 4″ wide tape in grey, white, black, and paintable!!! The rolls were $12 each, which is more per foot than ordering it, even counting shipping, but I only needed about 10′ and I’d have the product in my hand right there and then. So, I went home and applied it and now my rig looks like crap but it’s hopefully water tight!

I took some videos of the process. I know they’re not great; I’ve never done anything like this before. But the sound quality is fine and I think they are worth their bandwidth so I’m going forth and sharing them.

Prepping to Apply Eternabond

Ready to Apply the Eternabond

Eternabond Applied

And some still pictures:

the problem corner, some caulking removed

getting a smooth seam was impossible; once Eternabond is stuck, it’s there for life

the side seams were easier to make smooth

I want to add more tape to the bottom seam

Adorableness

Is there anything more adorable than two content cats curled up in a pile of bedding?

I doubt it!

It was a terrible night in the study–it’s noisier there because of the converter and the bed is too narrow for the three of us. Plus, the cats were really needy yesterday, what with the upheaval in the front of the rig, and they just couldn’t cuddle close enough to me so it was hard to get comfortable. I won’t be so lenient with them tonight. 😀

Well, I’m off to scour Osoyoos for Eternabond. Wish me luck!

Grateful For a Second Bed

I have to share this picture:

I’m glad I have that bit of insulation left from doing the skirting since the chill from that window is significant. Temps are nice and high this week, hovering around zero, but it’s still cold beside a single-pane window! As a bonus, the insulation will block out the light in the mornings.

Before anyone comments, that’s a double thickness of insulation; there’s a silver layer towards the outside, too. 🙂

That mattress is pretty bad and it’s going to be cramped, but I’ve made it as comfortable as possible since I’ll be there for a while. *sighs* Reminds me of my student days, living in one room. I just keep telling myself that at least I’m not sleeping on the floor!

I do have a plan for making use of the loft while it is out of commission…