Soldato
- Joined
- 28 Dec 2017
- Posts
- 9,189
- Location
- Beds
I would probably just max it out really!Yeah I think there a bunch of folk that have a mental barrier on the PIR. It isn't that bad at all TBH, especially if you use a nice long panel saw.
The size is just what's necessary I think - most of the heat is floor and roof so 100mm. Walls don't lose that much so 50mm is sufficient. Is how I remember it anyway!
Have you planned your cable runs? Again I'd be tempted to get those in first and place the insulation over top. Dunno why - to get them deeper in the walls I guess?