I have a 1915 Craftsman style Bungalow with clapboard siding. I know the walls aren't insulated well/if at all. I am also pretty sure there is no sheeting under the siding, as when I went to drill a hole for a bathroom vent, it was siding then empty wall spac.
I am going to be doing a paint job this spring on the outside of the house and have a few thoughts....
I am pretty sure I can pull one or two rows of siding off in a few areas to get access to the inside of the walls and if not, I am thinking I can take my 2" hole saw and just drill holes at every cavity, then replace the plug, fill and sand. The 1st method would be the cleanest and quickest if it works like I think it will, but I know I can do the 2nd method.
My questions are what type of insulation should I blow into the walls? I still have the lath and plaster and don't want to create any issues with it. I have thought and read about the foam, but think it might be too risky and expensive. At this point, anything is better than the dead air space I have as insulation now.