Thanks for compliments!
I used the 600 bd ft kit and used all of it today. I started spraying and never stopped till it was out. It's not hard to do but it is slightly costly and messy. I am sitting here picking foam bits of my arms and hands thinking I should have bought some sort of disposible suit and gloves. hindsight is great isnt it?
Big improvement in the tin can sound of the empty shell. The walls are more solid and dont flex much at all which was one of main reasons for using spray foam. the other reasons were I have no patience at all to cut all those pieces of foam board to fit around the braces I welded in. I was worried foam board may rub the metal and squeak unless I glued it in place but if I was going to do all that then I might as well spray foam it. This is closed cell foam and is designed as a sealant as well. no water or pests can go thru or around this.
I have about 1 - 1 1/2" of foam build up in the walls and about 1" on the ceiling. I may add more insulation going in the ceiling. cost me $630 for the 600 bd ft kit w/ 15ft gun. to do 600 ft of sheet foam 1" thick was going to run 475 or so (plus tax) then I would have to cut it, glue it in place, & tape the joints up. so for just a little more $ I got a much better result. I am out of foam, actually one cyl still has a good bit of chemical in it strangely?? the gun is reusable so I could use it for something else or even sell it. The kit can be bought from the site above without the gun assy.