Sealing areas to keep heat and cold outside
In my continuing quest to seal this unit up I found another area today.
While looking at the A pillars I see the joint between the dash and the fiberglass.
Not knowing how this area connects or is sealed I ran a line of spray foam between the wood and fiberglass. I can see if this isn't sealed air could be forced up into the cab area.
You can see where they sealed the end at the factory but not all the way across. This runs from side to side.