As NABCEP certified installers, the signed agreement states that; we as "Pros" will use the IBC and other applicable codes for design & installation methods. I will say that I loose jobs due to the additional cost of components & labor to install flashings. It is very frustrating having my local competition continue to squirt the L foot n go...... Our society, despite long winded explanations to a potential client the benefits of flashing, still are driven by the short term $$$$ savings despite the long term liability & cost of roof replacements. The other advantage of flashing is the improved long term output w/ the additional air circulation under the modules. Flash or walk! I sleep better when the ol noreaster comes a howeling. On Aug 6, 2015, at 2:05 PM, Jason Szumlanski wrote:
> If we are talking code, we should also point out how people are "getting > away" without using flashings and why AHJs are not requiring them. What I > have seen is that a fastener is not considered a "penetration." The argument > used frequently is that the thousands of screws that attach an exposed > fastener metal roof are not "flashed." The argument goes that the codes > sections cited be Andrew are intended for large openings like roof vents and > plumbing vents. If the screw occupies the space of the "penetration" and is > further sealed with sealant or a gasket, there is no flashing required. You > could extend this argument to shingle nails that go through the "roof plane" > depending on how you define it. > > Don't kill the messenger - I'm just pointing out the logic/argument made > against the requirement for flashings. > > I'll reiterate that my vote is to flash! > > Jason > > > On Thu, Aug 6, 2015 at 1:04 PM, Andrew Truitt <[email protected]> wrote: > > Flash! It provides a better, longer-lasting seal, and its a Code requirement > in most jurisdictions. From the IBC via the Quickmount PV website: > > <image.png> > > If one chooses to attach a footing directly to the roof without an integrated > flashing then an "insurance option" is to install an 8" step-flashing under > the shingle course above the penetration. This works better for railed > systems than railless since the whole footing assembly can be covered by the > modules. > > > > For a brighter energy future, > > > Andrew Truitt > > Principal > Truitt Renewable Energy Consulting, LLC > > (202) 486-7507 > > LinkedIn Profile > > Company Website > > NABCEP Certified PV Installation Professional ID: 032407-66 > > Colorado Journeyman Electrician License No.: 600132 > > > > > > > > > On Thu, Aug 6, 2015 at 10:47 AM, Daniel Young <[email protected]> > wrote: > Writing the subject above, it seems like I’ve heard this question on the > wrench list before, but I could not find it in my old email archives. Feel > free to pint me back to the old discussion if it’s there. > > > > I’ve been using a flashing based roof attachment for 8+yrs now (quick mount > or similar). Now we are looking at Rail-less systems (quick rack is a good > example). There is also a non-flashed rail-less racking from roof-tech > http://roof-tech.us/ . I’ve always been of the opinion that simply crushing > some sealant/gasket onto an asphalt shingle work fine at first (the test data > from roof-tech is impressive), but would be an issue 10+yrs down the road > (thermal expansion movement, freeze/thaw, etc). I can make a good waterproof > seal at first by just slathering some butyl/silicone to an L-foot and > cranking it down on the shingles, but that practice really disappeared 8+yrs > ago. > > > > Maybe consider this a Poll: (to flash, or not to flash) > > > > With Regards, > > > > Daniel Young, > > NABCEP Certified PV Installation ProfessionalTM: Cert #031508-90 > > > _______________________________________________ > List sponsored by Redwood Alliance > > List Address: [email protected] > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/[email protected]/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > > [email protected] www.SWNL.net > Solarwinds Northernlights > Serving Mid Coast Maine & Northern California > 207-832-7574 Cl. 610-517-8401 > > Blair "TUMP" May > ******** MAINE'S CHARTER ******** > NABCEP "Certified PV Installer" > > ******** MAINE'S CHARTER ******** > Trace Xantrex "Certified" Dealer / Installer" >
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