- Frequently asked questions
- Fixing ceramic wall tiles
- Fixing "man made tiles" onto concrete floors
- Fixing "man made tiles" onto timber floors
Frequently asked questions
Can you arrange a tiler to fit my tiles?
Yes, we have several experienced tilers whom we can arrange to tile for
you, they do not work for us but come highly recommended. They know our
tiles and materials and so you have continuity. See our Need a tiler page for more
details.
What about shade variation?
Most tiles do vary in shade and in size in some cases. The process's
used to make tiles use large amounts of heat and pressure, this causes
variations. This is what gives tiles there beauty and should be looked
at as part of what makes them look so wonderful.
What kind of adhesive and grout do I need?
We can advise on this when you come into the shop, we tend to slightly
"over specify" adhesives and grouts, that way you know they will be
fitted correctly. We can of course only supply the correct materials
based on the information you give to us. All adhesives, grouts,
primers, trims, chemicals are in stock.
What about if I can't find the tiles I am
looking for?
Just ask, we can usually source most things given a little time
How long does it take after I order my tiles
before I can collect them?
Usually no more than a week unless they are being made or painted for
you.
Checking tiles?
We check your tiles before you collect them but please check them
yourself prior to tiling. We can always sort out problems before they
are laid but afterwards is very difficult.
Fixing Guide
Fixing ceramic wall tiles
Most wall tiles are ceramic and are assumed to be suitable for fixing onto plastered walls or plasterboard. If fixing floor tiles onto the wall make sure the walls are solid and suitable to take the extra weight involved. Unplastered plasterboard will take 50% more weight than plaster - once primed or "tanked" it is superb to tile onto.
Preparation:
Remove old tiles, loose plaster and any emulsion paint and wall paper.
If you have trouble removing emulsion paint then score the area to be
tiled with a screwdriver to give a key.
If the walls are very uneven it might be worth considering having them
skimmed with plaster or overboarded to get a nice finish prior to tiling. Plaster
& plaster board will require priming first with SBR primer
diluted 1:3 with clean water, PVA is
not suitable and should not be used.
If tiling onto existing tiles make sure they are solid, clean and dry,
then prime using a paintable mix of SBR primer and polymer modified
adhesive to give a key (1 part primer to 2 adhesive). If tiling
with glass tiles it is always recommended that you use a White or light
coloured polymer modified adhesive.
Tiling:
Before starting to tile, use 2 tiles to "hand them across the wall" to
see where they will fall for cuts and position of window sills and any
obstructions. You are looking to make sure that for whatever starting
point
left to right you do not end up with very slim cuts to make. Decide on
the best start point and mark the wall, do the same for the vertical
start point. Starting off the bath if level is ideal but not always
necessarily best. If possible centre the window from left to right.
Think where borders or vertical strips will need to be.
Although most adhesives grip tiles well it can help to nail a wooden batten to the wall and tile up from that. Tile the walls spreading the adhesive on the wall with a notched trowel, spacing the tiles with the appropriate sized spacers. Some modern tiles look better with a tighter joint. Some need a wide joint especially if you have to accommodate the variation in size some tiles have from tile to tile. Large tiles can bow - bear this in mind if you intend brick-bonding the tiling.If fixing tiles that are larger than 25x25cm it is always advisable to use a cement based adhesive (powdered) rather than a ready mixed bucketed adhesive. We keep a wide range of tiling tools and tile drills for drilling holes for pipes etc in all tiles including hard porcelain.
Work cleanly, cleaning off excess adhesive and keeping the joints between tiles free of adhesive as you go. Most wall tiles will cut with a hand operated bar cutter but electric water cooled cutters can be hired at a daily rate. When all walls are tiled and dry mix the grout to a thick consistency (slightly thicker than sand & cement mortar) and grout using a squeegee or grout float, pushing the grout into the joints. When you have grouted several square metres clean off grout from the tiles face before it dries and using a sponge smooth the grout evenly along the joints. In room temperatures grout should not be left more than half an hour before cleaning off otherwise the grout will be difficult to remove. In cold rooms the time may be extended. Keep cleaning off the grout with a well wrung out sponge using clean water until only a slight powder residue is left on the tile faces. Once dry you can polish the face of the tiles clean using a soft cloth. If grouting with metal tiles or delicate materials be careful not to scratch the tiles with the grout.
Fixing "man made tiles" onto concrete floors
Most man made floor tiles we sell are now made of porcelain so for this guide we will assume the tiles are porcelain, if they are ceramic it will not make any difference for the purpose of this guide.
Preparation:
Concrete floors need to be swept clean first and any loose concrete
removed. If there are high patches these will need chopping down to the
same level as the rest of the floor using a hammer and bolster chisel,
any holes or large low points can be filled with the adhesive the day
before, providing the holes are not more than 2" deep and not too wide.
If the holes are large or deep, fill them with a mixture of sand and
cement. We supply fibre reinforced self levelling compound that will level from
3-50mm. If the floor to be tiled is freshly laid concrete the
general rule of thumb is to allow at least a week per inch depth of
concrete laid; if your floor is 4" thick then allow at least 4 weeks
for it to dry before tiling. Prime the concrete with SBR primer diluted
1:3 with clean water - do not use PVA.
Existing tiled floors need to be swept clean of loose dust, mopped clean and allowed to dry. It is advisable to prime the floor with a universal bonding agent mixed with adhesive powder to make a slurry coat (2 parts adhesive + 1 part neat SBR primer) and paint/trowel this on first and allow to dry. Any loose tiles will need taking up and the hole left behind filled with adhesive the day before fixing.
Tiling:
Before mixing up any adhesive always loose lay a large area of tiles to
familiarise yourself with the tiles, the grout joint width and the
pattern you are laying them in. Shaded tiles are best mixed as you lay
them out to give a good blend across the floor. Make sure that your
tiles fit across the room nicely without very tiny cuts at one side and
perpendicular to the main walls or walkway into the room. Many tiles
vary in size between each other so it is normal to have to use a larger
grout joint or "wangle" the joints to make the floor look right. If you
find any problems with the tiles contact us straight away before
attempting to lay any tiles. Once the tiles are fixed down it is
impossible to exchange any that you may be unhappy with. We recommend
you check the tiles as soon as you get them home, preferably several
days before the day you intend to tile.
Use a good quality polymer modified floor adhesive, sometimes referred to as a single part flexible adhesive, with 2 good clean buckets the relevant notched trowel and a sponge to clean excess adhesive off the tile faces. Mix the adhesive with water as per the manufacturers instructions, spread an area of about a square metre at a time onto the floor with the trowel leaving a "combed bed" of adhesive over the entire area where the tiles are to be fixed. Place the tiles down and apply firm pressure to them to ensure that they are correctly bedded into the adhesive. It is important to strive for 100% coverage of adhesive under the tiles so as to not leave voids where there is no support. Continue to lay the tiles and space them accordingly. Tilers will often do the cuts before mixing the adhesive at the "loose lay" stage so they can continue laying the tiles uninterrupted, some people prefer to cut the tiles as they go along. Clean with fresh water and a sponge the tile surface as you go along, make sure the grout joints do not have adhesive in them near to the surface of the joint otherwise the adhesive can show through the grout once finished. Work as cleanly as you can keeping your tools clean too. Once the tiles have set (usually after around 3 hours) the floor can accept light foot traffic. The next day they will be set firm.
Fixing "man made tiles" onto timber floors
Most man made floor tiles are now made of porcelain so for this guide we will assume the tiles are porcelain, if they are ceramic it will not make any difference for the purpose of this guide. Whatever way you achieve it the best floor is a solid & rigid floor when tiling. We prefer to make floors as stiff as possible then use a flexible adhesive & grout as well.
Tongue & grooved floorboards or chipboard floor panels/boards
Preparation:
The timber floor needs to be swept clean first and any loose pieces
removed. The floor should then be screwed down firmly using brass
screws, any really bad boards need to be replaced and noggins put
between joists to provide extra strengthening if required. The idea is
to make the floor rigid and provide a smooth surface in preparation to
tile.
Exterior grade (or marine) plywood - 15mm thick was always used for many years but it is cumbersome and the major problem with plywood is being too thick and handling it in big sheet form. If you use plywood it needs to have the edges primed first and then laid onto the timber floor and screwed down every 6-12" using brass screws. Then once fixed prime with SBR primer prior to tiling with single part flexible adhesive & grout.
An excellent alternative to exterior plywood is cement based backer boards - No More Ply or Hardie Backer. These boards are rigid, waterproof and at only 6mm thick are ideal when you do not want to raise the floor level too much. They are convenient as they come in a more manageable size :- 1200X600mm & 1500x900mm and as mentioned just 6mm thick. These are quickly laid using a polyeurethane glue and just 12 screws per sheet. These should be laid at right angles to the way the existing boards go and staggered in a brickbond fashion for extra strength. Any tiny gaps should be filled using the adhesive provided. Once laid these are primed with SBR primer and then tiled using a polymer modified cement based floor tile adhesive and with an additive in with the grout or the flexible grout we stock. These boards are always in stock and not expensive. Typically 1 tube of glue is required for 3 sheets of board, the screws are self starting and 25mm long so as not to go into any pipes under your floor boards.
Tiling:
Once your floor is primed and ready loose lay an area of tiles to
familiarise yourself with the tiles, the grout joint width and the
pattern you are laying them in. Tiles do vary in size and sometimes you
need to be prepared to adjust the grout widths to accomodate this -
this is normal. Very large tiles can slightly bow. Shaded tiles are
best mixed to give a good blend across the floor.
Make sure that your tiles fit across the room nicely without very tiny
cuts at one side and perpendicular to the main walls or walkway into
the room.
If you do find any problems with the tiles contact us straight away before attempting to lay any tiles - another good reason for loose laying first. Once the tiles are fixed down it is impossible to exchange any that you may be unhappy with. We recommend you check the tiles as soon as you get them home, preferably several days before the day you intend to tile.
Use a good quality polymer modified floor adhesive, sometimes referred to as a single part flexible adhesive. A grout admixture will also be required to add a little flexibility to the grout if standard grouts are used. You will need 2 or 3 good clean buckets, the relevant notched trowel and a sponge to clean excess adhesive off the tile faces. Wear rubber gloves as cement based products are not kind to your skin. Mix the adhesive as per the manufacturers instructions - not too much at a time, spread an area of about a square metre at a time onto the floor with the trowel leaving a "combed bed" of adhesive over the entire area where the tiles are to be fixed. Place the tiles down and apply firm pressure to them to ensure that they are correctly bedded into the adhesive. It is important to strive for 100% coverage of adhesive under the tiles so as to not leave voids where there is no support. Continue to lay the tiles and space them accordingly. Wipe tiles and joints clean as you go along with clean water.
Tilers will often do the cuts before mixing the adhesive at the "loose lay" stage so they can continue laying the tiles uninterrupted, some people prefer to cut the tiles as they go along. Clean with fresh water and a sponge the tile surface as you go along, make sure the grout joints do not have adhesive in them near to the surface of the joint otherwise the adhesive can show through the grout once finished. Work as cleanly as you can keeping your tools clean too. Once the tiles have set (usually after 3-4 hours) the floor can accept light foot traffic.
