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to flash example project |
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Step 1
The
site of the proposed conservatory
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Step 2
Construction
work begins. The ground is excavated to a minimum of 450mm deep for
the footings. Excavation exposes on underground drainage pipe.
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Step 3
Additional
steel mesh reinforcement is introduced to the concrete foundation
to prevent the drainage pipe being crushed. |
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Step 4
Concrete
is poured into the trench to form the foundations. The concrete
is a minimum of 150mm thick. |
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Step 5
The
concrete is floated to form a level surface to build upon.
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Step 6
The inner leaf of the cavity wall is built up to floor level.
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Step 8
A
blinding screed of sand is laid over the hardcore to prevent
any sharp stones puncturing the damp proof membrane.
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Step 7
Hardcore
is laid to a minimum 100mm deep and compacted to form the base
layer of the slab |
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Step 9
A
visqueen damp proof membrane is laid over the sand blinding
and lapped onto the inner leaf of brickwork. |
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Step 10
Optional
floor insulation may be installed at this stage. |
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Step 11
Concrete
100mm thick is laid to bring the slab up to the finished floor
level |
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Step 12
The
concrete is floated to a smooth level surface, suitable of tiling
or carpet. |
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Step 13
The
outer leaf of the wall is built. In this case, artificial stone
to match the house is used. |
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Step 14
The
inner leaf of the cavity wall is built to complete the basework.
The same material as the outer leaf has been used to provide
a feature stone finish. |
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Step 15
On
this installation cavity trays are being installed due to the
porosity of the house wall and the exposed conditions which
the conservatory faces. |
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Step 16
A
close up of a cavity tray. |
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Step 17
The
final cavity tray is installed. |
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Step 18
The
house wall is pointed after the installation of the cavity trays
and lead flashings. |
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Step 19
The
PVCu external cill is fitted to the dwarf wall and erection
of the side frames begins. |
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Step 20
On
completion of the frames the structural aluminium eaves beam
is fitted to the head of the frames. |
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Step 21
The
PVCu thermally clad aluminium glazing bars and ridge system
are quickly assembled. |
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Step 22
The
polycarbonate glazing panels are installed (alternatively, double
glazed units may be specified) |
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Step 23
The
ventilated aluminium ridge is ready to accept the clip fit PVCu
internal cladding. Electrical cables may be concealed behind
the cladding if a fan or lights are required. |
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Step 24
The
PVCu internal fascia is clipped onto the eaves beam to complete
the internal finishing trims. |
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Step 25
The
completed conservatory |
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