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Before this question can be answered, it
is necessary to:
- Know the area of the surface to be
tiled,
- Establish the tiling technique and
pattern (with closed joints, i.e. with the edges of the tiles touching,
or with joints from 1.5mm to 3mm between tiles; with continuous or not
continuous joints; in a parallel or diagonal arrangement.)
Remember:
- Even a delivery of Top Quality tile may
contain some defective tiles (the standards permit up to 5% of the tiles
in a Top Quality batch to be defective);
- Some tiles must be cut or drilled, so
that a certain number will be discarded. The number that is discarded
will depend on the tiling surface, especially if there are irregularities,
and on the tiling techniques (for example, diagonal tiling creates more
discarded tiles than parallel tiling).
- After tiling, some tiles should be saved
for any future repairs.
It’s also important to have
a sample to show if the consumer has any complaints concerning the tiles.
About 10-15% extra tiles should be
ordered than are actually required for the surface.
The quantity should be carefully
calculated before the order is placed, because tiles sent in a subsequent
delivery may not be identical to those of the original delivery.
The uniformity of the delivery
must be checked: in most cases tiles of the same type which are of a different
color shade or work size must be considered to be different products and
therefore unsuitable for tiling the same surface.
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