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Cor-A-Vent
X-5 X-Treme Ridge Ventilation System
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X-5 Ridge
Vent - 11" & 8 1/2"
Stop rain and snow cold with the wind-activated A.W.F. (Active Weather Foil),
X-5 provides complete protection in extreme weather conditions.
• 17" NFVA per lineal foot provides superior ventilation
• Power-Nailable
• Use on pitches from 3/12 to 16/12
• Each carton includes four end caps |
 Cor-A-Vent
introduces new X-5 -
The Complete Solution - superior ventilation
performance and the ability to stop
rain and snow infiltration cold.
. . even in weather extremes.
In
1980, when Cor-A-Vent introduced V-400, the
first shingle-over ridge vent, it set the
roofing industry and the ventilation market on
its ear. Now, you could have a well-vented attic
and a good-looking roof at the same time. Soon,
we had a slew of copiers, all trying to capitalize
on our success. Somehow,
the competition always seems to focus on
keeping weather out - not on ventilation. The
assortment of baffled, filtered and fabric wrapped
ridge vents is seemingly endless. We
view most of them with a somewhat jaundiced eye. Maybe
the phrase that best describes them is: “Nothing
in – nothing out!" |
The
key is the AWF – the active weather
foil.
What
is the AWF?
It’s a
specially designed, wind-activated, weather
impenetrable valve - permanently attached
to the bottom layer of our X-5 vent material.
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How does the AWF work?
Through extensive research and testing,
we’ve engineered the valve to close at
10 MPH (± 3 MPH). The leading
(windward) edge of the AWF, which is shaped
like an airfoil, catches the wind blowing at
it and snaps shut. Meanwhile, on the downwind
(leeward) side of the vent, the lift or draw
caused by airflow over the ridge is busy exhausting
hot, moist air from the attic. This is true,
whether the wind is blowing directly at the
ridge, or from an angle. Below 10 MPH,
the valve opens completely for positive ventilation
from both sides of the vent. Effectively, the
AWF blocks any weather
from entering through the vent’s flutes. |
 120
MPH Dade County approved wind driven rain tests
and our own in house blizzard tests confirm
this. The harder the wind blows, the tighter
the AWF seals.
How long will the AWF last?
Developed
from a special formulation of Reemay® nonwoven
with an UV inhibited proprietary coating, it’s guaranteed to last. Tested
to the same standards as composition shingles, the AWF fabric was subjected
to a 5000-hour exposure test from a Xenon Arc weatherometer. That’s the
equivalent of 25 years exposure to south Florida or Death Valley sun. The
results - no significant embrittlement or degradation. You
can be sure the AWF will remain flexible - there to protect your attic from
infiltration over the life of your roof.
 Will
the AWF hinge break or wear out?
X-5
has a nearly perfect hinge. To test its durability,
we devised a “flutter” test. This
set up utilizes a wind interrupter positioned
between a blower and the valve. As
the air stream hits the interrupter, it
opens and closes the valve very rapidly,
like flipping a light switch on/off. Using
an infrared tachometer, we counted over 10,000,000
cycles in 30 days -
the equivalent of an open/close once every
minute for 30 years. Afterwards,
the valve showed no signs of stress or cracking when
examined under a microscope.
Will
the AWF get stuck open or closed?
When
fully closed, the leading edge of the AWF extends
past the top of the shingle cap, so it can’t
get wedged shut. Once
the wind speeds drops below 20 MPH, the valve
returns to its full open position. The AWF
incorporates a lift spacer to insure
the valve doesn’t stick or freeze to
the roof in cold weather. The AWF also utilizes relief
kerfs every 12”, so the valve is
sure to open and close smoothly when installed
on wavy or irregular ridges.
Will
the AWF work on steep pitches?
In house, we’ve tested X-5 on 12/12 installations,
with no leakage. Unlike
baffled ridge vents, airborne rain & snow doesn’t
blow over the AWF and into your attic. It
stays sealed until the wind lets up. By comparison,
actual Dade County tests are run on 2/12 roof sections.
This is not real world, as very few houses have 2/12
roofs on them. In fact,
most shingle manufacturers won’t even warranty
a 2/12 installation
Will
the AWF work when the ridge is covered with snow?
As the roof warms up, the ridge is the first part to melt off.When
it does, the valve is again free to perform. Until
then, the snow covering the ridge effectively prevents infiltration.
When
performance counts – count on X-5. From
Cor-A-Vent – continuing our tradition
as
“The Leader In Innovative Rooftop Ventilation” |
Key Benefits
17
sq. in NFVA per lineal foot X-5
is now available in both 11" and 8 1/2" wide models
1
inch high, low profile design
Enhanced
Snow Screen™ design to prevent fine blowing
snow from entering the vent 2
widths to choose from: 11" and 8 1/2"
Crush
Proof Design
Made
from heat resistant polypropylene
AWF
(Active Weather Foil) Blocks Infiltration
Works
great as a hip vent
Power
Nailable - use 1 3/4" roofing nail
For
dimensions open the End View
1 PDF & End
View 2 PDF files.
For
dimensions if you have AutoCad open the End
View 1 DWG & End
View 2 DWG files. |
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