Looking for advice

[Russell brown]

I've got a bathroom to do for a repeat customer in an old house. The first floor is a lime ash sreed over reed, it's out of level and weight is an issue. The client wants the floor tiling, would dirtra or something else be suitable for the floor? As the floor bounces a little. Any recommendations

Russ

 

[Spare Tool]

Some floors really aren't meant to be tiled, this sounds like one to me, plenty of other options out there..cardine, vinyl, laminate etc...

 

[Sean SML Tiling]

Find a adhesive manufacturer that's makes a ultimate flexible adhesive and ring their tech department.

 

[Russell brown]

Find a adhesive manufacturer that's makes a ultimate flexible adhesive and ring their tech department.

theres no more bounce than you'd get on a timber floor. Any recommendations for adhesive?

 

[Just Rizzle]

on a bouncy floor theres only one rout vinyl

 

[White Room]

I've got a bathroom to do for a repeat customer in an old house. The first floor is a lime ash sreed over reed, it's out of level and weight is an issue. The client wants the floor tiling, would dirtra or something else be suitable for the floor? As the floor bounces a little. Any recommendations

Russ

I take you mean a screed over reed, the only reeds I know of are on walls....

 

[Russell brown]

I take you mean a screed over reed, the only reeds I know of are on walls....

yes a screed over reed. Basically the floor joist downstairs are exposed with no void between them and the floor. Reeds were laid over the joists and a lime and ash screed laid on top and a lime plaster underneath between the joists. Hopefully someone can tell me if it's possible.

thanks Russ

 

[White Room]

My personal view is no, people buy these old property's for there quaint looks then suddenly want to be fixing tiles on floors etc...there maybe a way but not one I've seen.

 

[Andy Allen]

Morning Russell. .....The most flexible adhesive I've found is bal single part fast flex.

I've no idea what type of floor your talking about, I've never seen one before. ....However 3 excellent experienced tilers are advising not to touch it and you would be well advised to listen to there advice. .

 

[p4ulo]

Would it be an option to screw down a new sub-floor, straight into the joists and work off that? It would create a pretty thick floor but could it work?

 

[Stef]

I've never heard of such a floor but as Andy says I would go with what's been said already.
I would err on the side of caution.

 

[Dave]

I believe these screeds are meant to breathe... So should it be tiled and should cement based adhesive be used .?

 

[Russell brown]

I've been on the phone all day with various technical departments, Webber don't make anything suitable to use straight onto a lime substrate. Mapie are getting back to me, ardex reckon arditex NA will be suitable if primed with p51 primer and dural say the there matting will work as long as there's no more than 5mm deflection in the centre of a 3m straight edge when held against the floor. I haven't got all the information I'm happy with and im still not sure wether it's worth doing, but I'll continue to look into it as a learning curve as I've seen a few of these floors around here.
thanks for everyone's input so far it's all being taken on board.
Russ

 

[White Room]

The trouble also is the strength of lime mortar/substrate, by the sound off it the property is very old so is the lime and it is'nt a strong substrate and starts to break down over years.

Depending on what NHL strength that was used, the standard wall hydrolic lime used 3.5 NHL and goes upto 7.5 NHL which would be almost the tensile strength of concrete which I doubt was used.

 

[andyb1]

I am with earlier posts on this, I would leave well alone.

 

[Spare Tool]

Not really thread related but as Dave pointed out lime screed and render are meant to breath, as a point my local church had some builder re point one side of the church and they raked out all the lime and used sand and cement, after only 2 years the internal plaster is now falling off the walls on the side they repointed yet the side that was left in lime is fine..point is...leave well alone

 

[Russell brown]

Not really thread related but as Dave pointed out lime screed and render are meant to breath, as a point my local church had some builder re point one side of the church and they raked out all the lime and used sand and cement, after only 2 years the internal plaster is now falling off the walls on the side they repointed yet the side that was left in lime is fine..point is...leave well alone

If It was on a wall I'd agree but it's the floor and as far as I can gather the lime screed was to allow for movement. I've by far made any decisions I'm just trying to get all the relevant information to go back to the customer. Believe it or not for once Google is not my friend because there's sod all information one way or the other. I haven't gotten round to speaking with schluter but dural are confident that they matting is up to the job if a can find and slc suitable to use on lime. After that they said any flexible adhesive is ok. I just need to know if there's such a thing, plus cost will be a factor. As long as I can go back to the customer with the correct advice I'll be happy, don't want someone else jumping in saying it's fine to tile if it's not.

again thanks for everyone input it really is helping

Russ

 

[Spare Tool]

I'll guarantee someone will walk in there and say its "fine to tile" least you'll be able to sleep at night Russ

 

[Stocks Tiles]

So as it is that you've now already wasted a day trying to contact companies to ask the question, I imagine it's a small area and that it's now not going to really be a profitable job even if you done it? Customers are lovely, till something goes wrong and then you never advised them and knew nothing of any risks with something not working and spread a bad name about you. It really isn't worth the money or hassle for me personally, walk away crack on with other work and keep a clean name.

If not - Good luck!

 

[Stef]

What puzzles me is Dural saying as long as there's no more than 5mm movement over a 3m straight edge.
Correct me if I'm wrong but I'm sure that matting isn't designed for deflection.
I would be concerned about this info more than anything.
5mm lateral movement yes not 5mm deflection.

 

[Russell brown]

I've already done a downstairs toilet so I'm confident of getting the other two bathrooms, just need to cover all corners.

 

[Swin]

Good luck,I can't imagine you'll have any joy from suppliers,I have a job in October with same issue,the architect has specified many things,in keeping with 'old ways' but negats the fact it's not practical
i passed it back too him too specify which product exactly I'm too use and confirm in writing he takes responsibility,suprisingly he at first said that's fine .....but several weeks later he's struggling too confirm the materials too be used