Spray it on

As of 5 April, the insulation team has arrived and started to spray insulating foam into the walls. Stef is very pleased; it makes the whole house seem more solid, he says. The spray insulation is more expensive than the old-fashioned batting type, but it doesn't hold water (in case of leaks), won't let through bugs, helps to hold the whole house together, and, surprise, is a better insulator. We're having that in all the outside walls (not the garage), and batting in the attic and garage etc.