Sound proofing 1st floor

[blue]

Hi,

Was thinking about this, for bathrooms/wc, but...

If I understood everything correctly

lay a mat of sort of dense rockwoolly type stuff on existing floorboards, then put sheet flooring on top as floating/unfixed to be held in place by skirting, then put bathroom floortiles on top.

Ok that raises b/room floor by about 3 cms. (?)

this means quite a difference between b/room floor and hallway floor.

OK then I'll do the same in the hallway & bedrooms on that side of the house. problem solved.

That is until one reaches the stairs. then the top stair will have a completely different lift compared to the other treads, so quite likely to trip up the unsuspecting...

At this point I sort of give up as following this through to the logical end point means laying soundproofing mat & flooring sheeting on each stair tread (to keep heights the same), then into the downstairs hallway, then into all the other rooms downstairs.

So - Either where's the flaw in my logic? Or any better ideas about soundproofing ??

(p.s. idea started because downstairs you can hear the tinkling in the wc upstairs)

G

[Chris George]

G lift up existing floorboards (remove contents if you want to do it well) as best you can put on either SDQ (sound deadening quilt) or better still a more modern product (cant remember the name but will try to look it up and send on when I have a moment) based on the rubbery type membrane developed for aircraft fuselages but marketed as a sound deaening layer. Re lay floor boards 3 mm higher and plane down one at threshold

if you like put on layer on top of boards as well with thin ply and have a door opening outwards (if poss) and small slope just outside or inwards on the inside of the wall of bathroom and slope it over the thicknes of bathroom wall chris

[FKruger]

The best way IMO is to add more plasterboard to the ceiling below. An extra layer of 12.5 mm and sealing any air gaps will get rid of tinkling.

[Mr Fuxit]

Pee down the side of the bowl.