Instructions / Assembly

1.800.643.5596 • Lomanco, Inc. • www.lomanco.com
OMANCO
®
Turbine vents should be located near the peak of the roof
on the rear slope, exposed to the wind from all directions.
When installing two, place each one ¼ of the total length of
the roof peak from each end of the house.
Example: On a 40' roof, each turbine vent should be 10'
from each end of the house.
Proper Spacing With Two
Turbine Vents Installed
1/4
1/4
Back of House
Turbine vents should be located near the peak of the roof on the
rear slope, exposed to the wind from all directions. When installing
three, one should be installed 1/6 of the total length of the roof
peak from each end of the house and one should be installed in
the center.
Example: On a 60' roof, the two outside turbine vents should be
10' from each end of the house – and the center one should be 30'
from either end of the house.
1/6 CENTER 1/6
Back of House
How To Locate and Space
IB-8 Turbine Vent
20450_1212
A Properly Ventilated Attic Must
Have Intake and Exhaust Vents
DO’S AND DON’TS FOR
ATTIC VENTILATION.
DO install all Exhaust Ventilation at the SAME
HEIGHT within a common attic area.
Installation of exhaust vents at more
than one level on a roof allows the upper
exhaust vent to wrongly pull air in from
lower exhaust vent rather than from the
sot Intake Vents.
DON’T install exhaust vents at dierent heights.
DON’T install Ridge Vents down the hip.
DO install ONLY ONE TYPE of Exhaust
Ventilation within a common attic area.
Exhaust Vents pull air from the easiest
Intake source. The use of two or more
types of exhaust vents such as Power Vents
with Roof Vents or Gable Vents with Ridge
Vents or Roof Vents could make one of
these vents act as intake instead of pulling
air from the sot vents.
DON’T mix dierent types of exhaust vents.
DO install a BALANCED SYSTEM of Intake and
Exhaust Ventilation. 50% Intake and 50%
Exhaust is a balanced system. Improper
intake may lead to snow or rain inltration
into the exhaust vents.
Front of
House
Stale, Moist Air Out
Back of House
Insulation
Make Sure
Insulation
Material Does
Not Block
intake Vents
Fresh
Air In
Intake
Sot
Ventilator
IMPORTANT Do not cover turbine vents in colder
months. Turbine vents will help remove damaging
moisture present in all attics. If this moisture is
not removed, it could condense and ruin your
insulation.
Proper Spacing With Three
Turbine Vents Installed