The Arvada enterprise., 1915-11-04

mcnt OF AgriCulturcD
Generally speaking. the construction
OF an ice house is n question of econ
oIny Tor the dairyman. The cost of
harvesting and storing, interest on the
money invested. repairs, and dcprcci-
alton on the building should offset tho
saving in the melting Of ice; beyond
this it is not good policy to so.
The location of the house should be
such as to shield ii as much us pos.
sible from the wind and from the di.
rect rays of the sun.
The function of an ice house Is to
prevent the outside heat from pass.
ing into the interior and melting the
ice; therefore the problem is to mini
mt1e the passage of heat by intcrpos.
ing in the walls material or II con.
struction which will resist its transfer
from the outer to the inner side of
the building. There Is no material
known that will entirely prevent the
passage of heat: however, there are
materials which offer n high rcsis.
tance and are termed nonconductors
or insulators. The best insuators np.
pear to be those that contain the
greatest amount Of cntrappcd air con.
fined in the smallest possible spaces.
Formerly 1t was the practice in con.
structing buildings for the storage OF
Ice or for cold-storage purposes to
provide series of air spaces some OF
which were as much ns IL inches
wide, the supposition being that they
were dcad-air spaces. AS a matter OF
fact, however. AS the air In contact
with the cooler surface fell while that
in contact with the warmer surface
rose. 1t produced n circulation tending
to equalize the temperature OF the
sides of the air space. Therefore an
Cir space l inch wide is practically
as good rs one IL inches wide. Air
circulation Is valuable, however, be-
tween the insulated ceiling and tho
roof OF an ice house In order to break
up the heat radiation through the roof.
No entrance or exit OF air should
be allowed to take place IN II room
where ice is stored. especially at or
near the ground line. Rs the ccld cur
rents of air at the bottom will filter
through. If the walls and foundations
are kept absolutely tight at the bot
tom. an opening at the top has but
little effect, as the warm air entering
VIII remain at the top of the room.
When II liz necessary to remove leo
from the house, the door should be
kept open as short a time as possible.
and where covering material IN used
the Ice should be carefully covered,
In properly insulated house n great
advantage is that no covering In re-
CURED. The ice In packed on the floor
of the room, depending on the insu.
lated walls and floor for protection
/ from the outside heat. But In the
cheaper houses II IL better to cover
the Ice with some material. such ma
8awdust or mill shavingB. A layer OF
the Insulating material should be
placed directly on the floor and the
Ice stacked thereon: there should also
be Il layer packed between the Ice ard
tho walls. leo should never be placed
lircctly on the ground. soil being a
talrly good conductor OF heat, cspc.
1ihlly when wet. aS the floors OF all
.cc houses are sure to be. The larger
percentage of waste. however. is due
o the entrance of heat through the in.
,ulhtion of the walls and floor, come
| 1ncntly they should be carefully con
structcd
lnsulation.
As sawdusi and Bhnyingg nr" shown
| IN som" of the typical designs. II In
not To b" undcrHiOod that they are tho
pest inSulntOrg for this clnBg OF build.
hgS. They ar" used because they nrr
'hoap ana can b" had In any part OF
The country, and II kept dry are good
lnsulatorB. II ig a worry dinlcun prob
lem, however, to keep them dry, aud
when they are 10 be used great curc
should be exercised In the cpuHlruc.
lion Of the walls In order 10 keep out
he moisture
Planning min HnnyIugH arc better
man gawdugt for Insulating purposes:
hey are elastic, do not Roitlo roudlly,
ana do not absorb moisture no read.
ly ng Ha wduHt. and. most Iu puri1nt.
~" tree from drt, bark. or chips.
when uHod nH nlllug for walls or coil.
ny, they should be wen packed INTO
jlac" 10 prevent settling
SawduEt has IN tho past been uanr
n great extent IN rural districts tor
npuIutiug walls Oi small cold storage
buildings que 10 the fact tHn' n In
yaInDlo In most c0uu ~ districts
ma usually without cost n H. not n
,cry FntiwaclOry mntnflnl for insult
ng purposes, hpwoYcr uB II lB nj.
Ways moro or lnBH damp. Further.
more the dampnogB not only destroys
" Insulating value, out It fnyora the
roW1h Of mold and rot. FIRST In the
uwdgM itself ana then In tho wallis