Andy, I am in agreement with Gina. I used Reflectix in my uninsulated Burro
. It was difficult to get it into some spaces especially where the corners are on the roof. For the most part friction holds it in place and it has not moved since I installed it. When the sun is shining I can see two different spots about 1" x 8" where there is no coverage but I just consider them a beneficial air space. When I took my windows
out I was surprised to see that only the top halves of the side window area had the fiberglass fused. I used this opportunity to jam the reflectix into and around the windows
. As I recall, the glass in the front and back windows
are not fused together making it easy to get the reflectix into those areas.
Like Gina, I used the reflectix over all of the exposed fiberglass on the cubby floors and behind cabinets. I used the 1/2 inch blue sleeping mats(from Wally) over that in the floor of the storage areas to hold the insulation and to minimize the vibration of the stuff riding on the top.
I used one layer of the blue closed cell underlayment for pergo type floors under the linoleum for insulation. This does not insulate very well but is probably better than nothing. I am now thinking of replacing that with spongy playroom jigsaw floor tiles and then placing the linoleum over that.
Without the Refectix insulation, the Burro
would not hold the heat. With the insulation it heats very easily and stays warm. Like you I considered the different options and if I had to do it over I would do it the same way again. rb