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EZ-Flow Roof Eave Vent system jacy 07-22-2008
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Posted by on July 22, 2008, 6:23 pm


Greetings,

I have a 60-year-old 1,000 SF brick-and-block raised ranch in
northwestern Illinois. About 17 years ago the original drafty wood
windows were replaced with good quality vinyl and caulked well.
Shortly after that a tear-off roof replacement was done, and an attic
fan and roof vents were added, for a total of 10 vents. There are no
eaves/soffits on the house save for one small overhang at the front
entry. The west elevation (front) is gabled with no vents, the other 3
are hip.

The new shingles curled much earlier than anticipated on the house;
the detached brick garage’s shingles, installed at the same time, are
fine. Due to the lack of intake vents there is a definite
ventilation/moisture issue, and a roofer has suggested a system called
EZ-Flow Eave Vents, supposedly designed for houses like mine. The
brochure for this system is linked below – does anyone have any
comments on the efficacy of this system?

http://mulroepc.com/ezflow.pdf

As the gutters are aged and in mild disrepair my thought is to do a
tear-off on the house and gutters, install this EZ-Flow system (run of
116’), a new roof and gutters at the same time. (The garage is fine
but to color match I may add a second layer.)

Additionally, there is a bathroom exhaust fan that is piped and
hanging directly underneath a roof vent nearer the gutter than the
roof ridge. Is it advisable to vent this differently as long as all
this other work is being done? Ditto a kitchen ceiling exhaust fan.
Should I scale back the number of roof vents if I install this EZ-Flow
system, as don’t the intake and exhaust areas need to be balanced? I
realize a good roofer should make recommendations about this but being
a single mom, it helps to be educated in advance.

Thanks for any comments.

~JMA

Posted by Don Young on July 22, 2008, 10:17 pm



> Greetings,
>
> I have a 60-year-old 1,000 SF brick-and-block raised ranch in
> northwestern Illinois. About 17 years ago the original drafty wood
> windows were replaced with good quality vinyl and caulked well.
> Shortly after that a tear-off roof replacement was done, and an attic
> fan and roof vents were added, for a total of 10 vents. There are no
> eaves/soffits on the house save for one small overhang at the front
> entry. The west elevation (front) is gabled with no vents, the other 3
> are hip.
>
> The new shingles curled much earlier than anticipated on the house;
> the detached brick garage's shingles, installed at the same time, are
> fine. Due to the lack of intake vents there is a definite
> ventilation/moisture issue, and a roofer has suggested a system called
> EZ-Flow Eave Vents, supposedly designed for houses like mine. The
> brochure for this system is linked below - does anyone have any
> comments on the efficacy of this system?
>
> http://mulroepc.com/ezflow.pdf
>
> As the gutters are aged and in mild disrepair my thought is to do a
> tear-off on the house and gutters, install this EZ-Flow system (run of
> 116'), a new roof and gutters at the same time. (The garage is fine
> but to color match I may add a second layer.)
>
> Additionally, there is a bathroom exhaust fan that is piped and
> hanging directly underneath a roof vent nearer the gutter than the
> roof ridge. Is it advisable to vent this differently as long as all
> this other work is being done? Ditto a kitchen ceiling exhaust fan.
> Should I scale back the number of roof vents if I install this EZ-Flow
> system, as don't the intake and exhaust areas need to be balanced? I
> realize a good roofer should make recommendations about this but being
> a single mom, it helps to be educated in advance.
>
> Thanks for any comments.
>
> ~JMA
My only opinion on your questions is that, although air vent inlets and
outlets should be basically equal, there is no advantage to decreasing a
larger to match a smaller.

Don Young



Posted by Erma1ina on July 22, 2008, 10:20 pm


jacy@gmail.com wrote:
> =

> Greetings,
> =

> I have a 60-year-old 1,000 SF brick-and-block raised ranch in
> northwestern Illinois. About 17 years ago the original drafty wood
> windows were replaced with good quality vinyl and caulked well.
> Shortly after that a tear-off roof replacement was done, and an attic
> fan and roof vents were added, for a total of 10 vents. There are no
> eaves/soffits on the house save for one small overhang at the front
> entry. The west elevation (front) is gabled with no vents, the other 3
> are hip.
> =

> The new shingles curled much earlier than anticipated on the house;
> the detached brick garage=92s shingles, installed at the same time, are=

> fine. Due to the lack of intake vents there is a definite
> ventilation/moisture issue, and a roofer has suggested a system called
> EZ-Flow Eave Vents, supposedly designed for houses like mine. The
> brochure for this system is linked below =96 does anyone have any
> comments on the efficacy of this system?
> =

> http://mulroepc.com/ezflow.pdf
> =

> As the gutters are aged and in mild disrepair my thought is to do a
> tear-off on the house and gutters, install this EZ-Flow system (run of
> 116=92), a new roof and gutters at the same time. (The garage is fine
> but to color match I may add a second layer.)
> =

> Additionally, there is a bathroom exhaust fan that is piped and
> hanging directly underneath a roof vent nearer the gutter than the
> roof ridge. Is it advisable to vent this differently as long as all
> this other work is being done? Ditto a kitchen ceiling exhaust fan.
> Should I scale back the number of roof vents if I install this EZ-Flow
> system, as don=92t the intake and exhaust areas need to be balanced? I
> realize a good roofer should make recommendations about this but being
> a single mom, it helps to be educated in advance.
> =

> Thanks for any comments.
> =

> ~JMA

Check out:

http://en.allexperts.com/q/Roofing-1598/eave-vents.htm

Here's the text:

Expert: Stan Skarbek
Date: 5/2/2007
Subject: eave vents

Question
I like your answer about roof vents. Adding ridge vent to gable vent . I
am in Michigan where we get snow what do you recomend for adding eave
vents to a house with no eave overhange . =


Answer
Hi Mike,
If there are no eave overhangs, I recommend that you don't add eave
vents. Even if you're able to install them between the rafters, with no
eaves, the rain and snow will blow into the vents.

What you can do, if you have an open attic (as opposed to cathedral
style ceilings) is to install some eyebrow style attic vents in the
roof, down low, near the edge of the roof. Putting a few of those vents
down low on each side of the house will accomplish the same thing as
regular eave vents. I recommend installing one vent every 10' to 15'
along the bottom edge of the roof.

I hope that helps. Feel free to follow up in the future.

Your roofer with a keyboard,
Stan Skarbek

Posted by hallerb@aol.com on July 22, 2008, 10:36 pm


> j...@gmail.com wrote:
>
> > Greetings,
>
> > I have a 60-year-old 1,000 SF brick-and-block raised ranch in
> > northwestern Illinois. About 17 years ago the original drafty wood
> > windows were replaced with good quality vinyl and caulked well.
> > Shortly after that a tear-off roof replacement was done, and an attic
> > fan and roof vents were added, for a total of 10 vents. There are no
> > eaves/soffits on the house save for one small overhang at the front
> > entry. The west elevation (front) is gabled with no vents, the other 3
> > are hip.
>
> > The new shingles curled much earlier than anticipated on the house;
> > the detached brick garage=92s shingles, installed at the same time, are
> > fine. Due to the lack of intake vents there is a definite
> > ventilation/moisture issue, and a roofer has suggested a system called
> > EZ-Flow Eave Vents, supposedly designed for houses like mine. The
> > brochure for this system is linked below =96 does anyone have any
> > comments on the efficacy of this system?
>
> >http://mulroepc.com/ezflow.pdf
>
> > As the gutters are aged and in mild disrepair my thought is to do a
> > tear-off on the house and gutters, install this EZ-Flow system (run of
> > 116=92), a new roof and gutters at the same time. (The garage is fine
> > but to color match I may add a second layer.)
>
> > Additionally, there is a bathroom exhaust fan that is piped and
> > hanging directly underneath a roof vent nearer the gutter than the
> > roof ridge. Is it advisable to vent this differently as long as all
> > this other work is being done? Ditto a kitchen ceiling exhaust fan.
> > Should I scale back the number of roof vents if I install this EZ-Flow
> > system, as don=92t the intake and exhaust areas need to be balanced? I
> > realize a good roofer should make recommendations about this but being
> > a single mom, it helps to be educated in advance.
>
> > Thanks for any comments.
>
> > ~JMA
>
> Check out:
>
> http://en.allexperts.com/q/Roofing-1598/eave-vents.htm
>
> Here's the text:
>
> Expert: Stan Skarbek
> Date: 5/2/2007
> Subject: eave vents
>
> Question
> I like your answer about roof vents. Adding ridge vent to gable vent . I
> am in Michigan where we get snow what do you recomend for =A0adding eave
> vents to a house with no eave overhange . =A0
>
> Answer
> Hi Mike,
> If there are no eave overhangs, I recommend that you don't add eave
> vents. =A0Even if you're able to install them between the rafters, with n=
o
> eaves, the rain and snow will blow into the vents.
>
> What you can do, if you have an open attic (as opposed to cathedral
> style ceilings) is to install some eyebrow style attic vents in the
> roof, down low, near the edge of the roof. =A0Putting a few of those vent=
s
> down low on each side of the house will accomplish the same thing as
> regular eave vents. =A0I recommend installing one vent every 10' to 15'
> along the bottom edge of the roof.
>
> I hope that helps. =A0Feel free to follow up in the future.
>
> Your roofer with a keyboard,
> Stan Skarbek- Hide quoted text -
>
> - Show quoted text -

we have gable end vents and newer ridge vent, no low eve vents.

have never had snow or rain problem, and attic temperatures much lower
in summer than before the ridge vent was installed

Posted by on July 23, 2008, 12:44 am


wrote:
>http://en.allexperts.com/q/Roofing-1598/eave-vents.htm
>If there are no eave overhangs, I recommend that you don't add eave
>vents. Even if you're able to install them between the rafters, with no
>eaves, the rain and snow will blow into the vents.
>
>What you can do, if you have an open attic (as opposed to cathedral
>style ceilings) is to install some eyebrow style attic vents in the
>roof, down low, near the edge of the roof. Putting a few of those vents
>down low on each side of the house will accomplish the same thing as
>regular eave vents. I recommend installing one vent every 10' to 15'
>along the bottom edge of the roof.
>
>I hope that helps. Feel free to follow up in the future.


Thanks. I do currently have 9 pot vents distributed between three
elevations. Two high and two low on both sides of the house and on the
back there's one near the top. Are pots that much less efficient than
eyebrows? I also have a thermostat-controlled exhaust fan smack in the
center of the X made by four of those aforementioned vents. I found
this mentioned in many places:

***
When attic fans remove more air than is drawn in by soffit vents, the
vacuum created in the attic can draw air from the house rather than
the outside.
***

I believe that may be the problem, and while half of those pot vents
were installed low in an attempt to overcome the lack of soffit vents,
I just don't think it's enough, hence my moisture problem. Last winter
was bad and I had ice dams in a few places, one in the vicinity of the
kitchen exhaust fan. Coincidence? Feh.

Between 3 teens showering innumerable times daily in a one-bathroom
house, gas appliances and heat, plus a huge vent-free gas fireplace in
the basement... we produce a ton of moisture. Heck, evaporation from
the bath towels alone is frightening!

I've totally bought into the need-for-ventilation thing -- just not
sure how to best accomplish it in my soffitless home.

~JMA

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