![]() The insulation is shiny side up on the floor as we don't anticipate the sun shining on the van from underneath, thus the radiant barrier isn't needed. We put down a layer of 4 mil plastic sheeting and a layer of the Ultratouch insulation on the floor and installed the plywood base. We will stay nice and cool in the summer and toasty warm in the winter! Before we cover the walls and ceiling with hardboard panels, we will put in a layer of Reflectix. Now that we have completed all of the wall insulation, it makes a tremendous difference. We also found out that the exposed wall framing still gets very hot when the van is in the sun. We figured that because this area was so large, an extra layer of insulation couldn't hurt. In the larger sections, we also added a 1/2" layer of polyiso insulation. If you look at the picture above you will see that we have completed a good portion of the initial insulation. Don't use 3M 77 as it is not a permanent adhesive, get the 90! You want the adhesive to last since you won't be able to get back into your wall to rehang fallen insulation! We bought a big enough roll (48" x 75') of this insulation so we could cover every nook and cranny in the van from floor to ceiling. The insulation is held in place using 3M 90 Spray Adhesive. A bonus is that is will not make you itch! The radiant barrier is made from recycled natural fibers and provides excellent thermal and acoustical insulation, reflecting up to 97% of radiant energy for excellent savings on heating and cooling costs. The stuff that makes it fire retardant also makes it resistant to mold and mildew. The UltraTouch insulation is a lightweight, foil-faced, fire-retardant blanket-type insulation with multiple uses. They are notorious for changing their links.) You have to order it online, it is not sold in the stores. (Let us know if this Home Depot link goes bad. Not saying any way is wrong or one is better than another, but we opted to go with UltraTouch Denim Insulation. Basically, if Home Depot or Lowes carries it, somebody out there tried to use it in their van. We saw instances where people used spray foam insulation but holy cow, that stuff gets everywhere and we were worried it might squeak as the body of the van flexes. Some people went with EZ Cool and some people even put household fiberglass insulation in their van (the pink stuff). We saw lots of people using FatMat or Noico products for sound deadening, then adding Reflectix on top of that. We did a ton of research on this and found everyone has their own opinion on what to use and how to do it. The van came without anything other than paint on the interior walls and because of this, the back of the van gets extremely hot in the summer and extremely cold in the winter. If you want to see the new build, click here. If you are looking for the index page of this project, click here. Ram ProMaster RV Camper Van Conversion - Insulation and Flooring ![]()
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