I dropped by Rona to get some insulation and wood. I decided on Rockwool because it
- has a higher fire rating than fibreglass
- is made mostly from recycled stuff (volcanic rock basalt and slag)
- has better R-value than fibreglass
But it is more expensive. How much more? I haven’t done much in comparison, to be honest, as I need the extra fire protection. This house is, after all, balloon framing.