7
1.3.2
CHOICE OF INSULATION
CELLAR
VOLUME (m3)
EXPANDED POLYSTYRENE
λ=0,044 W/m°C
EXTRUDED POLYSTYRENE
λ=0,030 W/m°C
POLYURETHANE
FOAM λ=0,025 W/m°C
14
60
40
30
16
60
40
40
18
70
50
40
20
70
50
40
22
70
50
40
24
80
60
50
26
80
60
50
28
90
60
50
30
90
60
50
32
100
70
60
34
100
70
60
36
100
70
60
38
110
80
60
40
110
80
70
42
120
80
70
44
120
80
70
46
120
90
70
48
130
90
70
50
130
90
80
60
150
100
90
70
170
120
100
80
190
130
110
90
200
140
120
100
220
150
130
MINIMUM THICKNESS OF INSULATION (mm)for 12°C cellar temperature
1.3.3
WALL AND CEILING INSULATION
The manufacturers propose their insulation panels in several forms :
-
insulation alone
-
"complexes"
: the insulation is lined with a facing ( plaster, mineral ….)
-
“ sandwiches “
: the insulation is lined on each side with a wooden or plaster panel
The panel facing is important : it protects the insulation from shocks and guarantees long life.
Do not use mineral fibre insulation ( glasswool, stonewool…)
because it stores humidity and loose its insulation
capacity.
Protection against rodents
Some insulating materials are damaged by rodents ( mice, rats…). It is therefore essential to make sure that the
walls of the cellar do not contain holes whichf would allow rodents access to the insulation.
This insulation must be lined, on the inner surface of the cellar, with a protective facing.
Polyurethane insulation, because of its chemical composition, is not attacked by rodents.
1.3.4
FLOOR INSULATION
The cellar floor must be able to support shelves and the wine stored on them.
You should therefore choose an insulating material with adequate compression resistance for this part.
Manufacturers recommend appropriate insulation or materials designed specifically for floor insulation, in their
documentation.
Puncture resistance ( feet of shelves in particular ) is provided :
-
in using
"complex" insulation panels lined, on the upper surface, with a strong panel
.
-
by facing the insulation with a panel of chipboard ( approx. 15 mm thick), or any other suitable covering
plaster and slab, for example
