My friends brother just had his new home sprayed with the foam. The ac/heat contractor said he needed x size unit for the structure and installed the units but didn't come back for startup The owner contacted another ac/heat contractor to come for startup and this contractor, after looking at the system, wouldn't touch it. Second contractor said it was entirely wrong for the spray foam insulation. The contractor said the units were too big with the foam Insulation, IIRC. He contacted several more contractors to make sure he wasn't being steered wrong, and wound up spending 17K changing out the ac/heat units. He lawyered up and is after the first contractor.
