Insulating Carpet Underlay

richardw

My purpose built flat, constructed in 1967, is above two, non-heated draughty, garages.
The floor structure is concrete with floor boards,
I have heating pipes running in the 2 inch void.

I'm thinking of getting carpet.
Is there such a thing as insulating carpet underlay to keep the cold out,
or would it be cheaper to put insulating board down first,
then traditional carpet underlay.
I'd like to avoid too much thickness as I would have to cut the bottom of the doors off.

Thanks.

cattie

I think you'll find the underlay itself acts as an excellent insulator, especially if you buy a decent one. You could always cover the floor with sheets of cardboard before laying the underlay, as this works well as an insulator. It's possible to buy large rolls of corrugated cardbord that will do the job, or get boxes from shops & supermarkets & tape them together. Thick sheets of newspapers will also work well as an insulator.

oh_heck

richardw wrote:

The floor structure is concrete with floor boards,
I have heating pipes running in the 2 inch void.
.

Thanks.

I'm confused ,don't you want to let the heat through from the pipes

richardw

The heating pipes feed radiators, not underfloor heating.