This post is an update to this post from my last year’s travels. http://macaloney.blogspot.com/2018/02/thermal-pack-for-fwc-camper.html?m=1
On my build of a Thermal PAC for my FWC (Four Wheel Camper), I designed mine from what I saw from others who own FWC campers.
The problem with insulating for all us FWC owners are the ends (front and back), where the folding boards are that hold up the camper top and how to address insulating behind them.
The key for my initial design, was using the high tech material InsulShine by Warm Company. I had pieces left over to use for this additional modification.
I also use the Nylon material, above. I needed to go to Joann Fabrics to buy some more for this added modification.
Both materials are non wicking so if moisture collects, as it can, it drys fast, with no problems last year.
So my camper left and right sides were insulated last year with my Thermal PAC but the ends behind the folding plywood wasn’t, until this additional modification.
Rather than trying to add to the already 10 foot sides I designed insulating panels (30”x18”) made of the same material as the sides. Above is the template I made for the pieces to add. Note that I did not try to have these panels extend fully behind the plywood panels. This would require designing something to pull the panels across. The affixed difficulty is that there are straps that hold the ends of the camper to the plywood, making slots behind the plywood splitingvthe space in half. Note that both the left and right sides are mirror images of each other.
The above picture shows the side to the outside with the Mylar reflective surface. The inside to the camper is the nylon.
With this addition to my Thermal PAC I insulate a good portion behind the plywood and it also keeps the air from coming out from behind it. I’ve read others who posted about having a string to pull Reflectix through each time they set up. In my case I can leave mine in and closing top of the camper works fine.
I’m looking forward to having the additional insulation this year. It works great for heating and keeping the heat out in the summer.