After getting the all clear from the electrical and building inspector yesterday afternoon, I started working on insulating the walls in the kitchen. We went with Roxul ComfortBatt R-15 because of its fire/moisture/mildew/pest resistant properties. It also earns LEED points if you're into that kind of thing. This is a mineral fiber insulation made from molten rock that's been spun like cotton candy. The insulation is also a good sound buffer, which is needed since we've got a pretty busy road out front. I made a time lapse video while I worked last night - it went quickly once I got the hang of it!