PAGE 4, HOME IMPROVEMENT SUPPLEMENT, Tuesday, October 11,1977

Insulation comes in. n three types

Energy, mines and resources published a booklet called-Keeping the Heat In

Batt-Blanket Types:

Pi most circumstances

these types are more easily
handled, and appieid than
loose fill

They are premanufac-
tured, with the quality
assured.

They are the most suitable
insulation. materials for
viertical surfaces in the
attic (though rigid in-
sulation could also be used.

They can be installed with
an attached vapor barrier if
desired.

The cost per unit of R-
value is generally higher
htan for loose fill.

The choice between batt
and blanket types will
depend upon the. particular
jeb to be done. Blanket
insulation is often more ask-
ward to install

Loose Fill Types:

Best suited for non-
standard or irregular joist
spacing or when space
between joists has many
obsturctions. Gets into
small areas.

Loose fill generally costs
less per unit of R-value that
batts or blankets.

If a vapor barrier is
desired, it must be applied
seperatley from the in-

lf using Batt-Blanket

@ differences between
glass and mineral fibre are
not large. Glass fibre is
easier to handle and may fill
the space more effectively
than some mineral fivre
batts. On the other hand,
mineral fibre tends to have
a higher R-value per inch.
Make your choice ac-

if Dein | Loose Fill
Glass and mineral re
are fire and moisture

resistan'

Cellulose fibre has a
higher insulation value for.a .
“piven RET ckness. It is made ©

from ‘recycled newsprint,
and as such reduces waste.

’ In-other areas. It is leas.
prone to undiesirabie getting
other loose fill ‘in-

sulations. It is treated witha Substantially less expensive

eee
LETS TALK |

Spboart
SAVING ENERGY f

Bank of Montreal

Canadas First 8 Bank .

which explains the various types of insulation.

BATT TYPE: slabs of lightweight glass or mineral
fibre. Available with or without a vapour barrier on

one side. .
fire retardant, though some

formulations may not* last
the. lifetime of the in-
sulation. The insulation does
absorb water, and therefore
should not be used where
water can come in direct
contact with the insulation.
Since this product has been
less ised
insulation, it is mot yet
standardized in Canada, and
vecause there are no
equivalent Canadia
Standards, we recommend
that any cellulose fibre
should either (1) state
clearly. on the bag that it
meets the ASTM standards
and the National Cellulose
Insulation
Association (NCIM
standards, aor (2) if it is
Canadian made,

manufacturer: should be
a aha te intee, in
' m
standards. - -

- Loose

best moist
the loose fills, but can in-
crease the fire hazard. The
shredded variety will be

has the #

n other of °

- same
siderations apply as with

Manufacturers ©

eets those
styrene

ture resistance of.

‘manufacturer.

Vermiculite is quiete
msive per unit o
value, relative to “other
types. Even the water
resistant variety will absorb
moisture and possibly cause
Probe It does have a
fire resistance.
Big shavin are
suitable for ce use
only. Iflocally produced and
treated to give fire
resistance, sha may
represent good value. The
moisture  con-

collulose fibre.

Wood wool may be used it
available docall
petitive

with fil fire e Fetardant. If
a
eben ie a moisture
resistant insitation.
H you are using loose fill
insu ti

oa anid plan to pour it- :

y make sure you

. -

at com-
hase it.
if i has. been treated

Ne

BLANKET TYPE: identical to batt type, except sold in

continuous rolls.

S

’
(

J

LOOSE FILL: a variety of loose materials made up of
small particles ranging. in texture from grenler we
fluffy.

HOT WATER HEATING
AND PLUMBING ©

7 T days seek.

24 br. service

“BELANGER

\