I've no experience of this so woud appreciate any input. Looked at a 40 sq/m floor this mornings of which 20sq.m or so is a mezzanine floor. Current flooring is 18mm wood installation sitting on thescreed. First thoughts were the movement / vibration I could feel when I jumped on the mezzanine area although I don't know if the wood flooring would exaggerate this? My adhesive of choice is Bal and I'm hoping that my local PST will come out and give an opinion / provide a spec but would also value any input from you guys. Maybe I am unduly concerned but my main query is how do you determine if such a floor is suitable to receive a tiled substrate.
Movement is a total danger Andrew. Bounce needs to be eliminated. I'v no experience of tiling over mezzanine either. Are you lifting it or going to slurry coat before tiling?
Movement, I know Joe. I wouldn't say 'bounce' it just vibtrates when I jump on it but I guess that's to be expected. Maybe its a Fastflex job, maybe it can't be tiled. Slurry coat? No I am hoping to remove the wood flooring and tile the screed slab, if it's deemed suitable. It's a domestic property in Wimbledon and while I haven't tiled one, wouldn't have thought the structure is that unusual at that end of the market. If it's suitable to tile is another question....
I started tiling a landing in a big house on Thursday and I could even feel a small bounce on the bison slabs !
Defo one to be careful of will need to be deflection free then i would use 6mm hardie screwed and glued Just re read the post by mezzanine floor do you mean a floating floor as mezzanine floor down here is something different
It's almost like a balcony Jay in that one side is open and I could look down to the lower floor. Would the hardie help eliminate 'that vibration? Likewise Bran, what would the purpose of the decoupler be in this situation?
Some pics would help Andrew, it is a concrete slab tho right? So the bounce must be coming from the flooring maybe lack of perimeter expansion gap or poorly laid?
Current flooring is 18mm wood installation sitting on thescreed This is throwing me a bit is it timber framed or a concrete floor thanks
Sorry chaps, no pics and maybe I ain't explaining properly. Here's the score: I walk into this nice gaff in Wimbledon at ground level, along the corridor into a large kitchen. This floor has 18mm natural wood flooring installed. I whip off a kick board and see screed underneath. Floor feels solid. At the end of the kitchen there is a dog leg to the right of about 20 sq/m at the end of which there is glass safety wall and a metal staircase leading downstairs to games room. It suggests to me that house is built on a hillside with fall in back garden. The 18mm wood flooring runs over this 'mezzanine' area too. I feel the vibration as I walk on this ' mezzanine' area. This area also has the 18mm wood running onto it. The wood is no problem, I will whip that out as its sitting on top and won't even be mechanically fixed to it. This area of concern is almost like those walkways in large shopping centres-they can be tiled t how do I determine if this one is suitable....
Mezzanine, split level Jay, im guessing Studio appartment type building usually comercial buildings that have been converted in to flats have these features open plan high ceilings Get them in comercial buildings to supported from underneath normally by pillars or supporting wall's
If its a concrete slab I cant see any problem, id asume the deflection/vibration would be eliminated with the removal of the flooring, Ditra and expansion joint should be sufficent. How is the Mezzanine suported from underneath?
Right got it now ,Remove the floating timber and fix to screed in those areas (height might be an issue) with the mez floor it should be timber that will need 6 mm cement sheet once the deflection is sorted were the screed and timber meet there will need to be an expansion joint hope this helps the mez floor may need work to remove deflection or bounce take it is a mixed substrate
That's what I had wondered Brian - is that wood making it feel worse that it might actually be. With a view to getting a Bal out I have asked her to dig out construction details. The area of mezzanine is part of a 7-8 year old extension to the original house. I can't see pillars underneath so I assume it's supported by a metal beam or two.
Would be handy if she had them Bal Rep will sort you out too, good to have these things guaranteed too. Have one simmilar coming up, only mine is off timber construction and theres a bathroom and bedroom on Mezanine level but the bathroom has one hell of arun in the floor almost off the bubble, waiting on structural engineers report!
