The lack of insulation in my roof at the moment does make a noticeable, tangible difference.
Normally I have my central heating set to 20 degrees until 9:30pm, and I used to have it set to 12 degrees… I came up with that on the basis that when the insulation was in the roof, overnight it would never drop below about 15-16 degrees, even in the middle of winter.
Now the insulation’s gone, if the heating is left off, the temperature will drop to 11-12 degrees… a real difference in heat retention, and in comfort.
The house is too damn cold overnight at 12 degrees, even with double doonas. I’ve reprogrammed it to 15 degrees overnight. Which of course means the heater switches itself on at night (resulting in some noise) and I’m obviously using more gas.
Will try and push ahead with the next steps in roof work, before getting better replacement insulation installed.