Hi
I'm having a two storey extension built at the moment. It has a pitched roof.
There will of course be insulation in between the ceiling joists but is there anything to be gained but adding celotex between the rafters?
It's an Edwardian house and so on the whole not great for thermal efficiency and I'm keen to take any opportunity to improve it. However insulating between the rafters was not included in my builders quote and so I will have to pay extra. Obviously I only want to foot the additional cost if there would be a benefit.
Many thanks for your help
I'm having a two storey extension built at the moment. It has a pitched roof.
There will of course be insulation in between the ceiling joists but is there anything to be gained but adding celotex between the rafters?
It's an Edwardian house and so on the whole not great for thermal efficiency and I'm keen to take any opportunity to improve it. However insulating between the rafters was not included in my builders quote and so I will have to pay extra. Obviously I only want to foot the additional cost if there would be a benefit.
Many thanks for your help