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Such
houses
are
not
built
of prefabricated
components
as described
above,
but
of large-size
walls
and
floors
which
are
bolted
together
into
three-dimensional
modules.
For
that
reason,
the
modules
brought
to the
construction
site
remind
of huge
bricks
stacked
on each
other.
The
volumetric
volumes
are
complete
with
elevations,
doors
and
windows,
and
water,
sewage,
electricity
and
heating
installations,
all
fitted
in the
factory.
The
modules
are
then
to the
site
on trailers.
On the
site,
a mobile
crane
is used
to erect
the
modules
on earlier
completed
foundations,
and
bolted
together.
The
external
load-bearing
walls
of the
building
have
a sandwich
structure
(e.g.
in the
Free-Dom
Buma
Building
System).
The
external
wall
finishing
depends
on the
customer's
choice:
mineral
or acrylic
render,
wooden
siding
or a
system
cladding
can
be applied.
The
internal
load-bearing
walls
are
made
of keramzyt
light-aggregate
concrete,
with
a mineral-wool
layer
applied
to obtain
proper
acoustic
insulation.
The
partition
walls
are
made
of plasterboard
fixed
on light
steel
frames,
and
filled
with
mineral
wool.
The
floor
structure
consists
of reinforced
keramzyt
mass
slab,
cast
within
a light
steel
frame
and
filled
with
mineral
wool.
In
case
of flat-roof
buildings,
wooden
or steel
structural
frames,
bolted
with
hot-dip
galvanized
steel
fixtures,
are
used.
The
roof
decking
is insulated
with
mineral
wool
and
has
a ventilation
gap
on the
whole
roof
area.
Such
technology
causes
that
each
detail
can
be described
in a
precise
and
easy
to verify
fabrication
documentation.
The
system
is composed
of repeatable
solutions,
and
thus
typical
errors
occurring
in traditional
inaccurate
building
technologies
do not
occur
here.
The
factory
is controlled
by a
quality
assurance
system,
and
all
its
products
must
meet
strict
quality
requirements.
Stages
of erection
of a
house
made
of volumetric
modules.
The
turn-key
project
completion
time
on earlier
prepared
foundations
is two
or three
days.
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