I've used this, it did a good job, looked innocuous and was easy to fit. It took an afternoon for a 3x4m room. It made a really big difference. Get some knee pads before you start fitting it!
I've since taken a (different) ground floor up and put wool underneath (I think that's what that youtube is doing), it took about two full days and was quite a lot harder - lots of broken floorboards, prying out nails etc - at several points I thought I'd made a big mistake even starting it :) Then hardboard over the top of the boards, laminate floor insulation foam (c.6mm thick) then laminate floor - this second stage took another weekend.
There's no draught at all any more and the room is noticably warmer than the first room, but it took a lot more work.
I've used this, it did a good job, looked innocuous and was easy to fit. It took an afternoon for a 3x4m room. It made a really big difference. Get some knee pads before you start fitting it!
I've since taken a (different) ground floor up and put wool underneath (I think that's what that youtube is doing), it took about two full days and was quite a lot harder - lots of broken floorboards, prying out nails etc - at several points I thought I'd made a big mistake even starting it :) Then hardboard over the top of the boards, laminate floor insulation foam (c.6mm thick) then laminate floor - this second stage took another weekend.
There's no draught at all any more and the room is noticably warmer than the first room, but it took a lot more work.