Spray foam day! Over a year after initially inquiring about the qualities of this soy-based spray-on insulation typically used for sealing basement walls, I finally had the guy over to spray my camper.
The contractor came with a big self-contained work trailer with his compressor/engine/miles of hose and drums of product. He fired it up- it was very noisy, sounded diesel, and took some time to prepare. I was too tired to get nosy but I gathered that there was compressed air, then the liquid product that must be pumped or pressurized somehow, delivered in two hoses and mixed at the gun as it’s sprayed on the walls.
A third hose is supplied air to his breathing apparatus. He suited up and got into his breathing mask, dragged all the hoses from the trailer to the camper, and began. He knelt on the floor and did systematic side to side passes with the gun, occasionally doing a depth check by stabbing it with a screwdriver. He sprayed over the walls and wheel wells and ceiling until it was all one puffy peach coloured surface. It didn’t take very long. It had no smell, inert as soon as it dried (almost instantly). Continue reading Camper gets cozy: spray foam insulation