Installation Guide

ROOF VENT KIT
INSTALLATION INSTRUCTIONS
Plan installation carefully. Roof cap will accept 3” or 4”
round duct. Tape all joints with duct tape to prevent air
and water leaks.
NOTE: DO NOT INSTALL THE ROOF CAP ON A FLAT
ROOF.
1. Cut a 5” diameter hole through roof boards and
shingles.
4. Trace outline of roof flange onto shingles.
1
2
NOTCH
V CUT
2. Connect 4” metal duct connector to opening in bot-
tom of roof cap:

Insert one edge of “V cut” under edge of “Notch.”

Rotate duct connector 360 degrees to completely
engage.
3. Insert duct connector/roof cap assembly into hole in
roof.
99040569H
8. Carefully lift shingles and slide back flange of roof
cap under shingles. Nail flange to roof under shingles
at top and two sides. Nail directly to roof at bottom.
9. Use roof cement to seal shingles to top and sides of
roof cap. Seal all nail heads with roof cement as well.
NOTE: Use as short a duct run as possible, for best fan
performance. If the 8-foot length is more than needed,
cut hose to desired length.
10. Slide hose clamp over free end of hose and fasten
hose to fan discharge collar.
NOTE: If discharge collar on fan is 3” diameter, use the
neoprene strip to increase the diameter to 4”.
To install the neoprene strip:
1. Center it on the top of the discharge collar.
2. Remove the paper backing.
3. Smoothly wrap it around the discharge collar so that
the pressure-sensitive adhesive holds it in place.
NAILS
(Seal all nail heads
with roof cement)
ROOF CEMENT
(Seal shingles to roof cap
on sides and top)
Broan-NuTone LLC Hartford, WI
www.broan.com 1-800-558-1711
5. Trim shingles as shown, so they will fit snugly around
hood of roof cap when installed. Seal all around duct
with roof cement.
6. Slide 4” hose clamp over end of flexible hose and
attach hose to connector. Tighten clamp securely.
7. Insert hose and connector into hole in roof.