In environmental air-exhaust terminations
At The Ridge
This air exhaust
termination eliminates
the need for additional
roof penetrations;
because it attaches at
the roof ridge ... whether
the roof is framed with
trusses (with no ridge
beam) or with
dimensional lumber
(with a ridge beam.)
In My Estimation
The roof-ridge is the best
place to exhaust not just
environmental air but any
kind of building system,
component air (plumbing
vents included). Let's go back
to the Cupola, for air exhaust
termination, right? However,
unlike a traditional Cupola,
my air exhaust termination is
designed with such a low
profile it’s barely visible …
even when up close.
This almost invisible cupola increases the visual value of the roof
and reduces the need for roof penetrations elsewhere on the
roof. Skylights and HVAC systems create more than enough roof
penetrations. Dish TV being a penetration of a lag-screw sort.
Heating Penetrations: Wood and pellet stoves, gas appliances etc. in a
large house, add up to several penetrations to maintain increasing
moisture / rainwater liabilities over the life-time of the roof covering.
SKYLIGHT (w/o pitched saddle flashing), PLUMBING and DRYER VENTS, building
corners, small crickets (valleys) and the presence of moss all invite moisture, rust
and rainwater penetration. Remember that after 19% moisture, dry-rot initiates
(not to mention mold issues) and begins to take affect on wood members; over
time this can be disastrous and very expensive. The presence of rust decomposes
unpainted galvanized roof flashing to create similar disastrous results.
A simple plumbing vent penetration is a moisture/rainwater penetration liability. Skylight
systems will always become moisture/rainwater penetration liabilities over the years.
Problem: The integrity of the roof covering becomes compromised over time; let alone the
additional time required to install the roof covering (especially the expensive kind) around
such systems . . . as exemplified here with less expensive 35 year architectural pictured.
This air-exhaust vent termination is inclement weather tight (disallowing moisture/rainwater penetration)
and is securely attached to the roof structure at the ridge. It is flexible to accommodate roof pitches from
flat to 12:12. This extremely low profiled air-exhaust termination is building code compliant because it
allows air to exhaust at the exterior of the building structure; the exhaust air-flow is unobstructed (able to
exhaust in two directions, 100 NFA) with limited back drafting. The sub-roof is notched 2 inches to
accommodate a single termination or completely removed (a 1 3/4” cut parallel away from the ridge) for
the accommodation of a ridge-vent system (when used.) Depending on the roof covering material and
ridge system installed, my termination will be a designed fit: structurally, functionally and cosmetically
unlike current norms tolerated.
Current norms tolerated, by inspectors, to exhaust environmental air makes
local BCD’s appear to be unprofessional and unknowledgeable of what
appears to be current accepted standards for new construction within their
jurisdictions. These are cancerous building practices every jurisdiction is
plagued by.
Continued tolerated (standard) practices . . .
Roof penetrations are a roof’s most vulnerable areas – they are the
weakest point of the roof and the most prone to leaks. Limiting roof
penetrations is an essential part of maintaining the integrity of your
roof system. At the same time that marketability is increased,
construction and building maintenance and remodeling costs are
It’s easy to see the value of, protecting through design, the
integrity of the roof covering. This video link could
obviously be more informative, but it still serves a good
purpose towards understanding the multi-value of
protecting the integrity of the roof covering through the use
of reduced roof penetrations.
My air vent termination exceeds current building code standards and improves upon what has been a widely
tolerated deficiency in environmental air exhaust methods and allowances ... . In contrast to what has been
allowed over the past decades; my vent termination exhausts air more efficiently without increasing the
moisture content to wood framing components and disallows “code violation” building practices in the attic
and closed (vaulted) rafter bay areas. Through the use of insulation stops, my air-exhaust termination allows
for vaulted roof structures to exhaust building component air at the ridge vent or other exterior building
corners and constricted areas of termination without compromising insulation value and standard “vented
eave to ridge airflow” within the rafter bay.
To summarize, my product is a marked improvement in
comparison to what currently exists. This air vent
termination is structurally sound, professionally engineered
for injection mold manufacturing and saves both contractor
and building owner much more than just money.
Previous roof – vented air exhaust terminations are labor
intensive to install; require continued maintenance;
continued owner / builder liability and are plagued with
continued safety risks and poor building standards. Imagine
the safety risks involved in steep pitched roofs and the costly
labor to install the most expensive of roof coverings: not just
75 year architectural but metal, copper, tile, slate and other
100 year roof covering materials. Reducing penetrations
increases roof covering integrity, function and reduces labor
/ material costs for all involved.
My roof vent termination exceeds these challenges on its
way towards creating The Next Generation in designed
building component air exhaust.

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