"adrian berry" wrote in message
...
:
: "BillV" wrote in message
: ...
:
: "Mike James" wrote in message
: ...
: (Cross posted from free.uk.diy.home)
: No replies and I want to get started ;-))
:
: ........................
:
: Hi folks.
: Just a simple question from a simple person ;-)
: Tiling up from the bath (dead straight edge), what's the best method
of
: doing this ?
: Start with the first tile resting on the bath rim, or would it be
: advisable
: to leave a small (probably about 4mm) gap by resting a piece of
: hardboard
: on
: top of the bath edge and tiling from this.
: Why? my approach to sealing a bath is to get the gap as small as poss.
to
: start with, works for me.
: If you want to protect the bath with the hardboard whilst tiling as I
have
: seen done.
: Then jack up the bath a bit afterwards to close the gap.
: I intend to use UPVC quadrant as a seal when all the tiling is
complete.
: Never had much luck with that stuff, seems to get mould underneath
before
: too long.
: If the gap is negligible then its easy to make a neat seal with
silicone.
:
:
: I agree with the OP - whan I tile to kitchen worktops I always use
hardboard
: as described to protect and provide a pocket for the silicone which gives
a
: much better seal.
:
: With baths the situation is slightly different as potentially there may be
: movement with the varying weight of the bath in use.
:
: I still think that a corner fillet of silicone has far less adhesion than
a
: well filled groove of highly elastic (not sure what the elastic modulus is
: of the"UNIBOND High Performance bathroom &
: shower" ) sanitary silicone.
:
: Adrian
:
............................
Thanks for that Adrian.
I must say at this stage that the bath in question is firmly secured to a
concrete floor and has been filled to see if there is any movement. I
couldn't detect any distortion even after a few hours. I don't know what the
modulus of this particular silicone is as it doesn't say on the tube, all I
can tell you is that it is "Power Shower" silicone & "Superior Mould
Resistant" with a 35 year guarantee. I agree with you on the small gap
theory having a better adhesion and I am still pondering about fitting a
UPVC quadrant as apposed too just having a silicone one. I might telephone
UNIBOND, their techie guys are pretty good when I've asked about other
various products.
Any more thoughts good or bad, please post back.
Regards.
Mike.