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We had planned to cover the Casita anyway, to protect it from UV damage. One of the homeowner association’s requirements is that covers be “earth-toned”. This eliminates less expensive commercially-available covers. We also want to be able to have access to the Casita for on-going projects and for use as a guest room, without needing to remove the cover. So we decided to make our own.
A few years ago, for our pop-up trailer, we found Kartex fabric, an 8 oz. natural cotton treated fabric with a flannelled backing manufactured for car covers. It is water resistant, but breathable, and comes in an earth-toned khaki color. It has held up well. First I constructed a “hat” for the trailer, which consists of a “crown” and and a “brim”. The crown runs the center roof length, covers the A/C and the Maxx Air Fantastic Fan Cover, and has an opening for our roof-mounted solar panel, so it can continue to gather rays. I made inserts from window screen cloth on the sides where the air intakes are located, so the fan and A/C can be used while the cover is in place. The brim was then attached to the crown, and extends a few inches down the sides.
For the sides, I sewed 72 inch long panels. The panels are attached to the brim and to the adjoining panels with continuous strips of hook and loop fastener. I constructed gores in the front and rear ends to accommodate the propane tanks and the spare tire. I also placed fabric screen window inserts in the panels, so there is daylight and fresh air flow. We later discovered we needed a screen at the upper refrigerator vent to dissipate heat. By making the cover in attachable sections, we are able to handle the total mass of fabric with relative ease.
Total cost about $280. Plus about a gazillion (12) hours of my spare time. No, I’m not going into business to make these- I have a job.
We will probably still have to plant a tree.
Ruth
You did a Great Job. 
