Full Product Manual
ROCKWOOL
5
When no insulation is present:
1. Install Comfortbatt
®
between joists 2. For additional insulation, lay a second layer of
insulation perpendicular to the rst layer.
When existing insulation is present:
• Level existing insulation to top of joist.
• Lay Comfortbatt on top of joists running perpendicular
to the rst layer.
• Ensure batts are butted against each other tightly.
• Fit batts closely to cross joists: cut batt if necessary;
leave no space between layers.
• In a vented attic (refer to the Construction Details
section), the installation of bafe (on-site or pre-formed)
is recommended to allow adequate air ow. Consult
with bafe manufacturer’s installation guidelines for
further information.
• Insulate attic hatch to same level as rest of attic.
• Apply weatherstripping to edge to reduce air leakage.
• Only insulate close to IC-rated electrical xtures.
• Follow manufacturer’s instructions and local building
code to insulate around chimney.
Insert. Compress. Release.
1 2
For existing construction