HomeMy WebLinkAboutCorrespondenceDavid Bartholomew
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Thanks Andy
Doug Porterfield <doug@dpaarchgroup.com>
Monday, January 25, 2016 2:25 PM
Andy Schwaller
David Bartholomew; Deb Fiscus
RE: R&B CNG Shop Improvements
I greatly appreciate your complement since you get to see a lot of projects pass through your door. I have forwarded
your email to Blaine Bu ck with Bighorn Eng i neering your email for his response regard ing the CNG/Natural gas
comments. On the structural side, take a look at 52.1 where the top of footing is called out at 97' -0" which is 3 '0 " below
grade for frost protection . I'll get you the info from Blaine as soon as I hear something back .
Doug
I.
DPA
Doug Porterfield
DPA Architectural Group
P .0. Box 1268
Glenwood Springs, CO 81602
doug@dpaarchgroup.com
www .d paa rchgroup .com
From: Andy Schwaller [mailto:aschwaller@garfield-county.com]
Sent: Monday, January 25, 2016 2:06 PM
To: Doug Porterfield <doug@dpaarchgroup.com>
Cc: David Bartholomew <dbartholomew@garfield-county.com>
Subject: R&B CNG Shop Improvements
Doug,
I did a quick once through. Thanks for the complete set of drawings. It would appear you and your team have done
your usually great job with design documents. Other than the classroom addition, it appear the lion's share of the work
is to relocate conduit and other sources of ignition out of the top 18 inches of the buildings and to install mechanical
equipment to change out the air or air mixture for the buildings. I am sure this has been addressed, but it would seem
the natural gas would tend to pool or float to the top of the air column adjacent to the roof decking. It would tend to
settle in a triangle shape against the decking I think. The height of the gas would be higher at the peak of the roof deck
than at the eves . Would any conduit along the underside of the roof peak need to be more than 18 inches from the
underside of the roof deck? Could be it never gets to collect to that extent.
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