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Message-ID: <1b4b137c1003010616y33e0ebcbw5316a59b957afb1f@mail.gmail.com>
Subject: Re: [FlyRotary] ridge vent
From: Tracy Crook <tracy@rotaryaviation.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Content-Type: multipart/alternative; boundary=000feaed62a1ad856d0480bde632

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Hi Kevin,
The ridge vent material I was talking about is the VERY porous stuff that
air can pass freely thru in any direction but keeps leaves & stuff from
blowing into roof ridge vents.  It has no membranes or anything else to
restrict airflow other than the loose fiber structure.   It has no
structural strength.   It just offers some resistance to high velocity air
and I placed it so that it offered some resistance to the fast air that was
concentrated at the back of my (wedge shaped) radiator diffuser.   This
forced air to difuse in front of the ridge vent material and evened out the
flow through the rad.   It still allowed some air to pass thru the rear part
of rad. Not the best technical solution but super cheap and took less than 2
minutes to implement.

Tracy

On Sun, Feb 28, 2010 at 11:24 PM, kevin lane <n3773@comcast.net> wrote:

>  I'd guess Tracy is talking about continuous ridge vent.  it is made of
> plastic and has construction very similar to corrugated cardboard, that is
> two membranes separated with parallel walls forming channels.   plastic yard
> signs are often made of similar material.
> for larger channels and far more rigidity and strength you might consider
> poly-carbonate.  I use it for patio roofs.  I know it comes it 6,8,10mm
> thicknesses.  unfortunately, I moved recently and threw out all the drops I
> had.
>
>
> KevinLane - carpentry
> www.kevinlanecarpentry.com
>

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<div>Hi Kevin,</div>
<div>The ridge vent material I was talking about is the VERY porous stuff t=
hat air can pass freely thru in any direction=A0but keeps leaves &amp; stuf=
f from blowing into roof ridge vents.=A0=A0It has no membranes or=A0anythin=
g else to restrict airflow other than the loose fiber structure.=A0 =A0It h=
as no structural strength.=A0=A0 It just offers some resistance to high vel=
ocity air and I placed it so that it offered some resistance to the fast ai=
r that was concentrated at the back of my (wedge shaped) radiator diffuser.=
=A0=A0 This forced=A0air to difuse in front of the ridge vent material and =
evened out the flow through the rad.=A0=A0 It still allowed some air to pas=
s thru the rear part of rad.=A0Not the best technical solution but super ch=
eap and took less than 2 minutes to implement.</div>

<div>=A0</div>
<div>Tracy<br><br></div>
<div class=3D"gmail_quote">On Sun, Feb 28, 2010 at 11:24 PM, kevin lane <sp=
an dir=3D"ltr">&lt;<a href=3D"mailto:n3773@comcast.net">n3773@comcast.net</=
a>&gt;</span> wrote:<br>
<blockquote style=3D"BORDER-LEFT: #ccc 1px solid; MARGIN: 0px 0px 0px 0.8ex=
; PADDING-LEFT: 1ex" class=3D"gmail_quote">
<div bgcolor=3D"#ffffff">
<div><font face=3D"Comic Sans MS">I&#39;d guess Tracy is talking about cont=
inuous ridge vent.=A0 it is made of plastic and has construction very simil=
ar to corrugated cardboard, that is two membranes separated with parallel w=
alls forming channels.=A0=A0 plastic yard signs are often made of similar m=
aterial.</font></div>

<div><font face=3D"Comic Sans MS">for larger channels and far more rigidity=
 and strength you might consider poly-carbonate.=A0 I use it for patio roof=
s.=A0 I know it comes it 6,8,10mm thicknesses.=A0 unfortunately, I moved re=
cently and threw out all the drops I had.</font></div>

<div><font face=3D"Comic Sans MS"></font>=A0</div>
<div>=A0</div>
<div><font face=3D"Comic Sans MS">KevinLane - carpentry<br><a href=3D"http:=
//www.kevinlanecarpentry.com/" target=3D"_blank">www.kevinlanecarpentry.com=
</a></font></div></div></blockquote></div><br>

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