plywood in bathroom

[Matthew77]

Hi all

I've been asked to tile in a domestic bathroom onto some plywood boxing that covers the shower & hot & cold water pipes above the bath (1800 by 750) , also the toilet is mounted on the wall instead of floor standing and a section of this is boxed in plywood (1000 by 1700) & the bath panel needs tiling too, plywood again. Plywood is probably not the best thing to make boxing out of in a bathroom as if the moisture gets to it it will warp & expand, but as it's already done will it be fine to prime it with Bal APD And then use both waterproof flexy addy & waterproof grout. would that be enough to stop the moisture getting to the timber?

Thanks in advance

Matthew

 

[Matthew77]

thanks all

I realise that timber is not ideal but its already been done & I doubt very much that the customer is going to pay me to rip it all out and replace it with something more suitable, I also doubt they will go for tanking either as they wern't even keen on my idea to remove the paint before tiling, but I will be suggesting that moisture might well get into the timber & warp it if it's not tanked or sealed properly...so was wondering if the customer just wants primer, water proof addy & grout will this be ok in most domestic bathroom siuations? Has anyone done alot of this and not had any problems?

thanks

 

[protilers]

Mapeigum and mira tape.....works everytime, check them out on google...........tanking systems do not have to be difficult, you have the wife for that!

p.s you can only guarentee this job if its tanked!
good luck

p.p.s ive done it alot,alot,alot

p.p.p.s the next time you get an oppertuinty get some ply...trowel on some "spare" adhesive and stick in some off cuts...wait for it to dry and flex the ply.....
you will see that ply is not as good as everyone thought!

 

[murf]

what you suggest will be o.k. maybe back butter tiles on timber as well.

 

[Pawelzik]

p.s you can only guarentee this job if its tanked!
good luck

p.p.p.s the next time you get an oppertuinty get some ply...trowel on some "spare" adhesive and stick in some off cuts...wait for it to dry and flex the ply.....
you will see that ply is not as good as everyone thought!

A.m. fact about guarantee - I absolute agree.

A.m. try - good idea & easy to do & can be easy explained to any customer. Martin

 

[Daz]

This reply is probably a bit late now, but I've been advising customers that they should apply Sealguard to the grout lines in wet areas. Grout isn't waterproof but the Sealguard certainly helps in making it repell water and, therefore, prevent the possibility of substrate de-lamination or warping.

 

[yrthesneakerhea]

Your residency speaks about your standard and status, brand name reliable as well as good in design.