A post by Andy

{Note: The work detailed in this post was completed over the summer of 2015, before we moved into the Turtle. I am just getting the time to write the post now.}

So, we have stuff to carry. And we want a place to store our solar panels. And we want to stay cool. And, if possible, look cool. So, we need to put together a roof rack…

Here are a few pictures of the old RV when we got it. It had an aluminum ladder that was old and worn, along with the typical RV aluminum tube luggage rack at the back- all bits with some of the mounts loose. We also had a big plastic storage box bolted to the top, but it was cracked and would certainly leak. As you can see, there was also one solar panel and a mount for what I’m pretty sure was a TV antenna. Good stuff, but it was all pretty worn, as it had all traveled for close to 30 years and more than 250 thousand miles.

 

We wanted our rack and top equipment to do a few things for us:

1. Have a dry and accessible place to store camping and fishing and other fun gear, out-of-season clothing, and some spare parts and equipment.
2. Have the rack removable, so we can maintain and fix the roof when the need arises.
3. Have a location to mount the planned solar panels.
4. Design the rack to provide us shade.
5. Have a system that we can change, add more solar to, move things around, etc.
6. Be able to fill and seal up all the holes prior people made when mounting things to the roof, and have a system where moving forward we will not be drilling into the roof any more.

Anyway, roof racks look great! I hear they can be useful too. In truth, we have pretty limited room and storage inside, so having a bit of room up top for our extra supplies and garage-like stuff was essential for a successful voyage.

So, to the step of getting the old stuff off and sealing up the holes. Pretty much unbolt the bolts and pry everything else off. I then used fiberglass impregnated epoxy body filler for all the big holes (I love epoxy!), maybe adding wire to support it as it cured. I then added Geocel Proflex on the seams. I read about and tried a few things, but to date, it is my go-to for exterior sealing. Here is a link.

For the (many) smaller holes, I would first clean and fill with the Geocel, then screw in a stainless steel screw the size of the hole, then cover the head of the screw with another layer of Geocel. It is a technique I read about on the internet, and it seems to have worked well so far. Again, it is not worth buying any hardware but stainless or grade 8. It does cost a little bit more, but use the savings you get for doing this yourself to get the good hardware. Plus, you don’t have to worry about some interior rust and redoing the work down the road. After sealing the holes, I put down Rustoleum on all the modified spots. The following pictures show the antenna hole through the roof, and some of the removed parts scattered in the yard.

We were lucky enough to have a friend who worked for Yakima who gave us a VIP discount card for one purchase. With the card, we got 12 A1 rain gutter towers, 6 78″ crossbars, 12 wide body rain gutters, end caps, two 12-peice lock core sets, a Loadwarrior basket, and some cargo nets. A truly impressive amount of wonderful Yakima pieces at a great savings. Boxes and boxes of sweet components!

From REI, Amy and I used our one-item 20% member discount and each of us bought a Skybox Pro 12, shipped to the Portland REI for free. We got the long and narrow boxes to configure end-to-end, and not take up too much roof area width-wise. We effectively have the roof racks for 4 vehicles, all to put up top the Turtle. It added up to a lot of initial investment, but it has been working well, and added an important comfort to be able to store a reasonable amount of things to make our small world flexible, and I think it actually has a sleeker look being made from components—as opposed to a custom-fitted rack. Since we were doing all the work ourselves, we decided to invest a bit more on some nice new hardware. After popping down to REI and loading our new Skyboxes (in their own boxes) onto the top of the old Scout, we stopped for a bite in downtown Portland. Seems fairly reasonable to me, but I imagine to some people we made a sight…

The sky boxes, along with the other hardware, sat in the house for quite awhile. After stripping and sealing the roof, it was only logical to finish painting the Tutle blue, then do the white roof paint, and then finally get to the point where we could install the new roof rack. Consequently, this is what our place looked like for quite an amount of time. (As you can see, our front room was used to store a number of Turtle parts until they were ready to install.)

The pictures are few here, but after most of the painting was finished, I mounted the wide body mounts. I measured, marked, measured again, checked, and had the geometry figured out. On the corner of the Turtle roof, I would drill my two holes, fill with Geocel, cover the mounting surface with Geocel, align the bracket, screw in two (you guessed it) stainless steel lag bolts, then cover the seam and outside with Geocel. After it all cured, we repainted with the Interlux. It looked nicer with the black brackets and shinny bolts before the sealant and paint, but I didn’t want to risk it. And, just so you know, the asymmetric spacing along the length of the roof is due to needing to align the crossbars so they will not interfere with a roof vent when open, but also allow for the mounting points of the skyboxes. Here are the brackets installed:

It is a nice feeling to know that at any point we could unlock (all keyed alike, now) the 12 towers, unscrew, and remove the whole rack if we had to do some maintainence on the topside. Anyway, the pictures are limited at this point, but following are some involving the tower, crossbar, and rack install.

You might notice that the Yakima basket lost out to the solar panels. The basket is in the storage unit presently, and it would be great to get it up there at some point. When we were building and installing the rack, though, the geometric logistics were far too difficult for the time allocated. Anyway, to install the solar panels, I bolted two pieces of 12′ 6061 T6 aluminum square tubing to the crossbars with stainless steel carriage bolts and nuts fitted through the Yakima Universal Snaparounds.

I picked up used ones super cheap here. By the way, ReRack in Portland are nice people and can save you some money on roof racks, so check them out if you are in the area. Back to topic, after getting the aluminum properly spaced and installed, I then drilled and screwed the solar panel brackets to the the aluminum. That step was a breeze. Solar panels installed, photo taken probably a month in.

As to keeping it all cool. We planned on (and did), paint the roof surface with a couple of coats of Interlux topsides white boat paint. We actually painted the roof vent covers white as well. The assumption is that paint will reflect much of the sun’s heat, and be able to withstand the UV rays. So far, everything looks pretty good up there. We have some cracks in the paint where the caulking we used was not completely cured before we painted (I don’t blame the paint, we had time constraints), so we have some washing and fixing of some seams to do. Otherwise, all looks pretty good. A common approach for keeping a bit cooler is to have a couple of roofs, effectively carrying your own shade along with you.

The above old-school Rovers have a second roof with an airgap for passive cooling in the hot sun. (Side note, did anyone notice the tall skinny tyres the rovers are running on?) With the spacing added from the rack towers, and mounting the solar panels and boxes above the crossbars, we have a impressive air gap and continous shade on over 50% of the roof.

Currently, there is a middle strip free for walking, in which I will fit an additional panel at some point, then simply make some cheap synthetic or plywood panels and paint them white to increase our shade to close to 100%. So far, though, we have been to the Badlands of South Dakota in the summer, and have stayed with the ambient temperature with thoughtful venting and minimal electric fans.

To me, the goal is not to be cooler than the outside, all we need to do is not be hotter than the ambient temperature in all kinds of weather.

Oh, almost forgot, we want to access the roof! We need to clean the solar panels, get stuff into and take stuff out of the boxes, check on all the paint and seals, and most importantly, be able to climb up and yell with arms outstretched like you are in a movie! Anyway, the ladder…

We actually bought a car roof rack ladder as a start. The almost $200 ladder (seems crazy) was well worth the money, in the time saved. It always feels pretty weird to buy something new, remove it from the box, then start cutting it right away. So, the ladder, welding, adding more rungs for the proper length, and fixing the folding function.

Some close-to-final pictures here. We started with a 9-rung foldable ladder, and ended with a 12-rung rigid ladder that bolts to the bumper and the top rack. Again, it was designed to bolt to the bumper and rack, so it is removable…

I’m pleased with the removability of the ladder, because we crushed it a bit when we backed into a tree one day, about a week after it was finished and installed. The ladder was subsequently unbolted, straightened, and remounted. From the side, it now does have a bit of ripple (below the designed joint and by the spare tire)—this is what we call life.

To sum up a bit, up in the boxes right now we have a few fishing poles, extra wire and parts and unfinished projects, cloth for sewing projects, extra window insulation, snow shoes and masks and fins, river tubes, my old tent. A pair of driving lights I have yet to wire up. Some cheap speakers I plan on installing in the doors. You get the picture. We call it our attic.

We have a completed rack now. It holds our solar panels, is our attic, and still has room to exapand.