Struggled with motivation this afternoon, not least because I don't like to get filthy after cleaning up for the day, but spent the best part of two hours grinding the wall in my work room. I thought the grinding was done but found a few places where my panels won't fit, so got to grind some more. I stopped because the light was failing and it's hard to work in my own shadow. Tomorrow I can finish the grinding and hopefully get some panels fitted.
After I stopped grinding I filled a couple of spaces where I'd ripped out mortar and left gaps in the wall. Hopefully that will set overnight before I get busy with the grinder again. It will be really good if I can get the insulation panels fitted in the next couple of days and, once I'm done throwing fine concrete dust into the air, I can look at getting the fiberglass put into the ceiling. That will be a nice piece of progress, and mean it won't get so cold in that room any more.