Technical Specifications

What are the advantages of
VentSure
®
Rigid Roll Ridge
Vents with Weather PROtector
®
Moisture Barrier?
• Patented, lightweight, high-density
polypropylene construction
• Advanced moisture barrier— no
baffles required
• Only ⅝" vent profile
• 20-foot roll is easy to handle and
ready to install
• Adjusts to almost any roof pitch
(2/12 to 20/12 pitch)*
• Easy to transport and handle
• Rounded peak reduces shingle
stress and cracking
• Can be installed with a nail gun
• Won’t compress when nailed
• Won’t clog or deteriorate like other
vents
What materials are required
to install a VentSure
®
Rigid
Roll Ridge Vent with Weather
PROtector
®
Moisture Barrier
ventilation system?
• VentSure
®
rigid roll ridge vent with
Weather PROtector
®
moisture barrier
• End cap (included in package)
• Roofing nails
• Construction adhesive or sealant
caulk
What tools are required to install
a VentSure
®
Rigid Roll Ridge
Vent with Weather PROtector
®
Moisture Barrier ventilation
system?
• Safety goggles
• Utility knife
• Tape measure
• Power saw
• Coil nailer or hammer
What installation precautions
should I follow?
• Read all instructions before
proceeding
• Always wear safety goggles
• Follow all standard safety
precautions
What general ventilation tips
should I know?
• Do not allow insulation to block
undereave vents
• For proper ventilation, adequate
intake is necessary to prevent back
drafts and assure effectiveness of
ridge vent system
• Close off all gable and other roof
vent openings
• Do not allow air from home
appliances (dryers, range hoods,
bathroom fans, etc.) to exhaust into
attic—exhaust directly to outdoors
How much ridge/undereave
ventilation is required?
In order for your ventilation system
to operate properly, a system must
be designed to create an airflow that
draws air out of the attic at the roof
peak and brings air into the attic along
the underside of the roof. This can
be accomplished by using VentSure
®
rigid roll ridge vents with Weather
PROtector
®
moisture barrier, which
allow air to be drawn out of the attic
(exhaust), and soffit vents, which allow
air into the attic (intake).
For maximum efficiency, and to create
what is considered a balanced system,
ventilation should be equal at the soffit
and ridge. It is critical to provide proper
distribution of ridge and soffit vents.
In cases where a balanced system
cannot be achieved, always provide
more than 50 percent of the total
required ventilation at the soffit and
the remainder at the ridge. Again, the
desired system is to equalize ventilation
at both the soffit and ridge areas.
To calculate the minimum amount of
total ventilation required, use either the
1/300 or 1/150 ratio. On the inside, the
actual calculations have been made for
your convenience. Use the 1/300 ratio
if you have proper distribution of soffit
and ridge vents or if a vapor retarder is
present. Use the 1/150 ratio if proper
distribution of soffit and ridge vents
cannot be achieved and a vapor retarder
is not present.
See the chart on the back page to
identify the minimum amount of ridge
and soffit ventilation required. Always
remember that proper distribution will
result in exhaust (ridge vent) and intake
(soffit vent). For the best results, run
the VentSure
®
rigid roll ridge vent with
Weather PROtector
®
moisture barrier
along the entire peak of the roof in
accordance with these application
instructions.
The Net Free Vent Area (NFVA) of
soffit ventilation should always be at
least equal
to or more than the net free vent area of
the ridge ventilation.
VentSure
®
Rigid Roll Ridge Vent
with Weather PROtector
®
Moisture Barrier
Owens Corning High-Performance Ventilation System
Installation Instructions
*Refer to local building codes for roof pitch requirements.