Insulate under floor of 1st floor?

Zero

In a standard-sized 3-bedroom semi-detached house where under the floorboards of the ground floor has been insulated and also between the floor joists of the attic (not the roof joists) has been insulated, is there any point in insulating under the floor of the 1st floor? i.e. under the floor of the bedrooms?

Thanks!

Ruski

Nope - let the rising heat warm the upstairs rooms.

HTH

Russ

Zero

That's what I had been thinking. Thanks Ruski!

Johnandabby

There is a benefit in reducing sound from people moving around upstairs. A lot of new build executive homes will have insulation at first floor level for this purpose.


With the noise from our rooms upstairs I would definitely do this the next time I change the carpet...

Zero

Johnandabby wrote: »

There is a benefit in reducing sound from people moving around upstairs. A lot of new build executive homes will have insulation at first floor level for this purpose.


With the noise from our rooms upstairs I would definitely do this the next time I change the carpet...

If putting this in then purely for acoustic reasons, would there be a product more specific to this than insulation?

Johnandabby

Zero wrote: »

Is putting this in then purely for acoustic reasons, would there be a product more specific to this than insulation?

Yes, purely for acoustic reasons for internal floors. We generally use Isover APR 1200 acoustic roll which is specifically designed for this purpose http://www.isover.co.uk/products/acoustic-partition-roll-apr-1200?cat=internal-floors - there is a difference between acoustic insulation and general thermal insulation.

Zero

Thanks for that.