Status 09/2010
3
Sizing up and determining
quantities required
3.1
Rolls
(sheet
flooring)
To determine the quantities required, the run lengths
and widths must be measured.
Before measuring
up, the direction of installation therefore needs to be
determined first.
Abutted seams are only permissible
for run lengths of over 5 m, with the minimum length
of a run being 1 m.
Rolls which run up to door
openings, alcoves etc.
must cover these areas. Door
openings, alcoves etc.
to the side may have strips
installed.
3.2
Tiles
Tiles are generally laid with cross joints alternating in
the direction of run.
They may however also be
installed in the same direction using a special
arrangement. Parallel and diagonal installation is
possible with regard to the course of joints. For
measuring
up,
an
extra
amount
based
on
experience is added to the area to be fitted to allow
for wastage.
There is greater wastage with diagonal
installation than with parallel installation, and more
wastage with areas which include non-standard
angles or curves than with straight areas.
3.3
Stairs
Floorcovering
for
stairs
is
cut
from
the
roll.
Floorcoverings with a longitudinal pattern must be
laid parallel to the nosing of the step. This also
applies to landings.
The requirement is calculated
from the number of steps which can be cut from
each roll. Templates are prepared here for spiral
staircases.
4
Storage, air conditioning,
installation conditions
Storing floorcoverings properly is the best way to
ensure
that
they
maintain
their
installation
characteristics. Before installation, the floorcovering
should be stored in a dry place which is not too hot,
above all not in boiler rooms. Rolls should be stored
upright.
With tiles, no more than 8 cartons should be
stacked on top of one another. If resilient floor
coverings are stored at too low a temperature, it may
be impossible to lay them correctly. Installation
according to the professional standards assumes a
minimum room temperature of +18 °C.
However, it is
not only the room temperature which is important
during installation but also the temperature of the
subfloor. This should be at least +15 °C or, in the
case of underfloor heating, between +18 °C and +22
°C. Relative humidity should be no more than 65%
(ideally 40% to 60%). These climatic conditions
should be maintained for 3 days before preparatory
work starts and for at least 7 days after completion.
Even at suitable temperatures the floor coverings
still need to be conditioned before being laid. It is
therefore advisable to cut the floor covering to size
the day before laying it.
DLW VINYL floorcoverings should be stacked on top
of each other in rolls and tiles fanned out so they
can adjust to the room temperature overnight.
Acoustic
floorcoverings
should
be
allowed
to
acclimatise at least one day before installation while
standing loosely rolled.
Ensure that only one and the same lot number is
installed within one room. This applies both to rolls
and tiles.
5
Installation
The following floorcoverings should be laid using a
special technique alternating between lengthwise
and
crosswise
installation:
Contract
Interior,
Connection Corlon, Translations and Translations II
Acoustic.
5.1
Rolls (sheet flooring)
Even if edges will be welded later, it is advisable to
cut both edges of the run because only a clean-cut
edge can guarantee a neat seam. The first run edge
is easily cut with the strip cutter.
The second edge
can be cut using one of two methods:
a)
In small rooms (before applying adhesive):
The underlying run is scored with the knife along the
upper run edge already cut, and the surplus strip
then cut off in the opposite direction using the
hooked blade.
b)
In large rooms (after applying adhesive):
The upper run edge is scored with the scorer or the
Linocut along the run edge of the run edge already
cut lying in the bed of adhesive, and the surplus strip
cut off with the hooked blade.
5.1.1
Seam
incision
Make the seam incision so that the edges of the run
fit closely but are not forced together. The incision
should be either vertical or at a slight angle.
With Timberline make sure that the seam incision is
always positioned against the edge of a plank
pattern and the next run offset min. 15 cm to the
planks.
5.1.2
Abutted
ends
Abutted ends of short runs can be cut to fit before
applying adhesive. With longer runs it makes more
sense to cut the abutted end after bonding the
surfaces. This also applies to abutted seams.
