Insulating between first floor joists

[ptaylor]

I am currently converting an Edwardian house and while the ceilings were down i was thinking of insulating between the first floor joists. I would not normally but because the are so high i am concious of losing all the heat from the lounge to the room upstairs and also for a bit of acoustic insulation.

Because the joists are 180mm thick i was going to use 100mm Rockwool Flexislab which would leave room for the pipes , wires and airflow.

Is there a better way of doing it? Am i just wasting my time and money?

Any opinions and advice, greatly appreciated

 

[kbdiy]

Why do you want to stop heat rising to the upper floor? Better to insulate the loft well - minimum 270mm.

 

[arkie]

Upstairs can get a little to warm and you want the rads downstairs to heat that room not the room above, and also blocking sound can't be bad if i had the opportunity i would do it.

 

[noseall]

Upstairs can get a little to warm and you want the rads downstairs to heat that room not the room above, and also blocking sound can't be bad if i had the opportunity i would do it.

Fit acoustic insulation in the floor void and balance your radiators.

 

[stuart45]

And fit some TRVs.

 

[HERTS P&D]

I have taken down all of my downstairs ceilings: I had it re-wired then filled with insulation. Then doubled boarded and plastered. The house is much warmer and quieter upstairs. I also insulated my loft with over 300mm insulation.

Andy

 

[ptaylor]

Thanks for the advice, well appreciated