Insulation question

edbehnke wrote:
don't spray, it'll be heck trying to repair something in the future.

another thought would be rigid insutaltion i.e. blue 2 inch rigid.

My enclosed underbelly did not have any insulation in the void and when I sectionalized it I added a bunch of the foam type board insulation. I didn't try and do a first class job like taping sections together, etc., but I figured whatever I could easily add couldn't hurt and any help could only be a plus and the added weight was minimal.

This shows a picture of a section of the new underbelly removed and the new insulation that I added. This is at the very rear of the trailer and that duct is the last one and the tank on the left is the black tank and the grey is about 10" in front of it. I didn't want to put insulation under the actual tanks so the air space around most of them could be heated by the ducts. The insulation runs from frame rail to frame rail and all the way to the rear of the trailer.



This shows the additional R-5 insulation in the forward area of the trailer. The insulation runs from around the front of the FW tank all the way to the front of the trailer and from frame rail to frame rail. The heating ducts were secured to the floor of the trailer in this area and are now above the insulation in the void there.



The shaded grey shows the approximate areas that additional R-5 insulation was added. The blue are the heating duct runs and three floor registers. The entire floor area of the bottom of the trailer is 195sq ft of which 156 is between the frame rails and I put 112sq ft of insulation in that area.



I haven't done any decent testing to see if what I did helped much and not sure how I could determine it anyway and as I said above I figured it had to be better than nothing so it is what it is.

Larry