Does anybody have any experience with any of the DIY spray foam kits? Both the pre-pressurized bottles and the ones you hook an air compressor up to. I will be using the open cell type. I am hopefully going to start spray foaming the solid brick walls I have as my exterior walls this year and I am planning on doing it on a room by room basis. I would normally have someone come out and do it but it would not be cost effective to have them come out a dozen or more individual times to do one room at a time.