Considering that now there are products that meet National Roofing
Contractors Association standards, it isn't worth the risk to simply
use sealant under the L foot. A sealant sealed L-foot is nothing but a
leak that is waiting to happen.
For metal roofs other than standing seam metal there are a couple good
products for making a roof penetration that shouldn't leak
http://aeesolar.com/PDFs/SnapNrack-Tech-Bulletin-CRB_7-23-09.pdf
and
http://www.ejot.com/ejot.de/Solar--3078.htm
With either of these, expect to spend a lot of time installing bracing
because the top of the metal rarely coincides with the rafter or truss
location.
Kent Osterberg
Blue Mountain Solar, Inc.
Drake Chamberlin wrote:
At 01:16 PM 6/24/2010, you wrote:
Oregon rebate programs (where we are based) are requiring all roof
penetrations/attachments to be flashed.
What do you use to flash metal roofs?
Sunny Regards,
Kirpal Khalsa
NABCEP Certified Solar PV Installer
Renewable Energy Systems
www.oregonsolarworks.com
541-218-0201 m
541-592-3958 o
On Thu, Jun 24, 2010 at 9:18 AM, Peter Parrish
<
peter.parr...@calsolareng.com> wrote:
- IMHO the TileTrack system for
flat
concrete tile or S-tile is the best approach there is. The 3/8” SS all
thread can be accommodated by a ~3/8” hole in the tile, leaving an
exceedingly narrow gap around the all-thread to caulk.
-
- By way of distinction, I never
use tile
track on comp-shingle or torchdown roofs, using instead Fast-Jacks and
Oatey elastomeric flashing.
-
- - Peter
-
-
- Peter T. Parrish, Ph.D.,
President
- California Solar Engineering,
Inc.
- 820 Cynthia Ave., Los Angeles,
CA 90065
- CA Lic. 854779, NABCEP Cert.
031806-26
- peter.parr...@calsolareng.com
- Ph 323-258-8883, Mobile
323-839-6108, Fax
323-258-8885
-
- From:
re-wrenches-boun...@lists.re-wrenches.org
[
mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of
Nick Soleil
- Sent: Wednesday, June 23, 2010
5:10 PM
- To: RE-wrenches
- Subject: Re: [RE-wrenches]
Flashed Footing Requirements
-
- Who can help:
- One of our local jurisdictions, City of Petaluma,
is beginning to require flashed footings under all solar arrays. I
think that some flashed footings are better than the Unirac L feet or
Prosolar's TileTrac foot, but the flashed footings cost a lot more $,
and
some flashed footing products seem flawed (less watertight) They
are asking me to uninstall two commissioned systems from last week, and
replace the footings with flashed Fast Jacks, even though the documents
detailed the penetration method.
- I am looking for some good info that supports
flexible installation methods, including caulked footings. Our
industry has come a long way from the early days of racking on slotted
angle iron with steel L-brackets for feet, but those experiences tend
to
give me confidence in continuing to use caulked footings.
- Nick Soleil
- Project Manager
- Advanced Alternative Energy Solutions, LLC
- PO Box 657
- Petaluma, CA 94953
- Cell: 707-321-2937
- Office: 707-789-9537
- Fax: 707-769-9037
-
Drake Chamberlin
Athens Electric
OH License 44810
CO License 3773
NABCEP TM
Certified PV Installer
Office - 740-448-7328
Mobile - 740-856-9648
|
