Our coach has a 20-foot Dometic awning on it. I’m not a huge fan of awnings in the west because thunderstorms have a habit of ripping them off of coaches. The shade is nice, but as soon as the wind kicks up, or if you walk away for 10-minutes, the awning gets torn off by a micro-burst.
That said, our awning has a mid-span support because it’s so long and that awning support got pulled loose while doing its job. There is suppose to be a plywood backer (according to Outdoors RV) behind the skin into which the coarse-thread lag-bolts are screwed, but alas my coach is missing that piece so the lag-bolts just blew the glass skin and the luan plywood out.
Outdoors RV sent me the latest version of the mid-span support (Thanks Todd!) and that hardware package has a 3/16” aluminum backer plate which gets pop-riveted (oscar rivet) to the luan/glass skin then the coarse-thread bolt goes thru that. It looks like version 2 is better than version 1, but not enough better for me to mess with it.
I opted for the heavy-duty custom version. The awning support is on a section of the wall which backs up to the microwave cabinet inside the coach. So, I pulled the microwave out and drilled thru the wall, thru a 1/2” plywood backer plate I made, and installed thru-bolts from the awning support to the plate inside with toggle bolts (I used them because Peter gave me some. Save a trip to the store).
The backer plate rests on the top-plate of the wall and picks up that structure as well as the luan, foam, luan, glass sandwich of the wall assembly. I sealed the holes and the outside of the awning support with copious amounts of clear silicone. I’m fair-certain the awning support will stay put for awhile this time.
After having revised the awning support I now wonder what the awning arms are affixed to. Is there anything backing up those lag-bolts? I hope so, but likely not.
As a side-note when I pulled the microwave from the cabinet I discovered that the front feet were missing from the oven. The only thing holding the weight of the oven-front were the tiny-little screws in the trim cover. Sad. Very sad. I made some new feet before the oven went back into the cabinet.