Base construction: Before
any work starts the builders have to check the surveyors
report and consider where materials are going to be
stored during construction. If a skip is needed and
they usually are where is it going to be placed. These
may seem fairly fundamental but it is important that
these items are sorted very early in the first day.
Leaving clear access for the client is paramount. Making
sure materials are delivered with the least amount of
disturbance to neighbours is a sign of considerate construction.
Protective boards: Back to
the site protective boards need to be placed over the
grass, which has to be walked on to access, the conservatory
Conservatory location: Now
the conservatory can be set out. After the conservatory
is set out vegetation soil is removed and footings are
dug. The building control department will have already
been consulted to confirm if any local ground conditions
required special considerations. If not the footings
are dug down to suitable sub stator (hard ground).
Depth of footings:The footings
typically are filled with 600mm by 500mm of footing
concrete known as strip foundations. Brickwork is built
up to damp proof height (same height as internal floor).
Making sure no vegetation soil exists on the floor area
hardcore is spread over the area and compress with a
whacker plate (vibrating plate) this makes a good solid
floor for the concrete to be poured onto. Sand is placed
on top of the hardcore to cover any sharp hardcore which
could piece the membrane. A damp proof membrane is placed
on top of sand blinding and insulation is placed on
top of the membrane. The concrete floor is poured and
trowelled to provide a smooth surface.
Vertical damp proof membrane: Where
the outside skin of brickwork from the conservatory
meets the house wall a vertical damp proof membrane
is inserted into the house wall. This is often not done
by conservatory installers but is a very important part
of the construction and is always checked by Vogue surveyors.
Wall ties:Suitable house wall
ties are fixed to the house wall and built into the
new cavity walls.
Cavity wall insulation:The
dwarf walls are built with cavity insulation fitted
as standard. Wall ties are placed in regular intervals.
Around doors vertical damp proof membrane is used to
close the cavity.
Cover brickwork to prevent rapid drying:Brickwork
is covered up to prevent rapid drying during hot weather.
The civil works are complete and the building is ready
for the conservatory product to be installed.