[RE-wrenches] Modifying a plumbing vent

[Kent Osterberg]

To get the open area equivalent of a 2" vent pipe would only require the 
bottom of the panel to be 1/2" above the top of the vent pipe. However, 
for folks in a cold climate, condensation freezing into a large ice 
block on the bottom of the panel could block the vent or damage the 
panel. Pretty sure vent pipes under the array are not a good idea for 
many of us.

Kent Osterberg
Blue Mountain Solar
70177 Ponderosa Ln.
Cove, OR 97824
www.bluemountainsolar.com


On 8/31/2020 6:40 AM, Matt Partymiller wrote:
>
> Scot,
>
> What do you interpret the last part of that section to mean? ‘The 
> placement of a panel over a vent pipe… shall provide for an open area 
> for the vent pipe to the outdoors that is not less than the area of 
> the pipe…’
>
> Is that saying if you have 2” PVC you need your panel 2” above the top 
> of the pipe?
>
> Thanks for bringing this up.
>
> Matt
>
> Matt Partymiller
>
> General Manager
>
> Solar Energy Solutions, LLC
>
> 877-312-7456
>
> matt at sesre.com
>
> *From:* RE-wrenches <re-wrenches-bounces at lists.re-wrenches.org> *On 
> Behalf Of *Scot Arey
> *Sent:* Saturday, August 29, 2020 11:38 PM
> *To:* RE-wrenches <re-wrenches at lists.re-wrenches.org>
> *Subject:* Re: [RE-wrenches] Modifying a plumbing vent
>
> Complete game changer. I stumbled upon it in Fine Homebuilding article 
> and was surprised this was not more widely known. Vent pipes can be 
> reduced in height. Details in plumbing section.
>
> https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.iccsafe.org/wp-content/uploads/2018-IRC-UPDATE-Handout-9-1-17.pdf&ved=2ahUKEwiGv-zC_cHrAhVIeawKHcMWDqsQFjAMegQIARAC&usg=AOvVaw36RmseBH_BsTWca5GZc6jd
>
> Howard "Scot" Arey
>
> owner, Solar CenTex
>
> 254 300 1228
>
>
>
> On Sat, Aug 29, 2020 at 6:07 PM -0500, "Jerry Shafer" 
> <jerrysgarage01 at gmail.com <mailto:jerrysgarage01 at gmail.com>> wrote:
>
>     I have relocated roof vents several times, just have to make sure
>     they comply, no P traps, flat or downward trends. Fasten correctly
>     to the rafters, sealing both old and new. If you want to do this
>     on the roof under the modules same rules apply.
>
>     Jerry
>
>     On Sat, Aug 29, 2020, 3:17 PM William Miller
>     <william at millersolar.com <mailto:william at millersolar.com>> wrote:
>
>         Friends:
>
>         Over all these years I have always been able to work around
>         plumbing vents.  Now I find one that is just in the way.  My
>         foreman suggests we 90 it out of the way, and makes the point
>         that there are vent 90s in the walls all the time.  Is there
>         any concern about this practice?
>
>         Thanks in advance.
>
>         William
>
>         Miller Solar
>
>         17395 Oak Road, Atascadero, CA 93422
>
>         805-438-5600
>
>         www.millersolar.com <http://www.millersolar.com/>
>
>         CA Lic. 773985
>
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