Specification

3
ROCKWOOL cuts quickly and accurately with a
serrated knife, such as a bread knife, so you can easily
achieve optimal t around pipes, electrical boxes, wiring,
ductwork and between studs and joists that are less
than a standard width.
Compliance&Specication›2lb/ft
3
32 kg/m
3
R14/15 89 mm 2.8 kg/m
2
R22/23 150 mm 4.8 kg/m
2
R28/30 184 mm 5.9 kg/m
2
R32 203 mm 6.5 kg/m
2
Density ASTM C 612-00 – 32 kg/m
3
(2 lb/ft
3
)
Fire
CAN/ULC S102 Surface Burning Characteristics
Flame Spread = 0
Smoke Developed = 0
Moisture
Resistance
ASTM C 1104 Moisture Sorption 0.03%
Managing moisture in wall assemblies
Depending on your building codes and geographic location,
a vapor barrier may be required when insulating exterior
wall cavities. The use of a vapor retarder will limit the
amount of water vapor that will move to the outside wall –
reducing condensation in the wall assembly. ROCKWOOL
COMFORTBATT
®
will not absorb or retain water in the event
that moisture does get into the wall assembly.
When insulation material such as berglass gets wet, it
can absorb moisture, reducing R-value, and will slump or
sag within the wall cavity. This can also create the risk of
mold growth in the insulation. COMFORTBATT
®
is made
from inorganic stone and does not support mold or fungus
growth, even when exposed to moisture. COMFORTBATT
®
is also vapor permeable, meaning that it will not absorb
water but it if does get wet, it will dry out and maintain
its R-value.
Better t equals better wall performance
To ensure the labeled R-value is achieved, batt insulation
in wood and steel stud wall cavities must be gap free
and void free. Gaps and voids are most prevalent around
electrical boxes, wires and pipes.
ROCKWOOL COMFORTBATT
®
is produced at a slight
over-thickness to ensure a friction t within the wall
cavity. The batts will stay in place and perform equally
well in horizontal, sloped, dormer, vertical and overhead
applications.
ROCKWOOL COMFORTBATT
®
’s unique exible edge
ensures the semi-rigid batts compress and expand between
studs and joists to eliminate slumping or sagging and
conform to off-standard wood studs.
Higher-density batts reduce airow within the wall cavity,
reducing convective losses. This translates into a better-
performing and more comfortable thermal wall.
Performance Matters.
Studies have proven that wall assemblies with
gaps and voids can result in 35% loss of the
stated R-value. ROCKWOOL COMFORTBATT
®
’s
higher-density batts make it simple for precise
cutting to ensure a t without gaps and voids.