I'm with Jason. Even though for years we installed without flashing, we now use it on every job. It is code and besides, why take the chance? We use Snap N Rack flashing very successfully in Maine, where snow, ice, rain and large heat/cold expansion/contractions make flashing a great insurance. On really shallow roofs we use Eterna-Bond (dual side adhesion, 3 inch tape) under the flashing.
Daryl > Hi: > > People may already know about this, but I thought I would pass it on in > case some dont. > > We do a lot of work with the boating and RV industry in the US and > overseas. > > One sealant name which has come up a lot with strong positive reviews > regarding age related drying/shrinking not only in the US but overseas as > well is SIKA. > > Here's a link to their website, > > http://usa.sika.com/ > > JARMO > _____________________________________________________________________________________ > > > Jarmo Venalainen | Schneider Electric | Xantrex Brand | CANADA | > Sales Application Engineer > Phone: +604-422-2528 | Tech Support: 800-670-0707 | Mobile: > +604-505-0291 > Email: jarmo.venalai...@schneider-electric.com | Site: www.Xantrex.com > | Address: 3700 Gilmore Way, Burnaby, BC V5G4M1 > > > > > > > > > *** Please consider the environment before printing this e-mail > > > > > From: > "Matt Partymiller" <m...@solar-energy-solutions.com> > To: > "RE-wrenches" <re-wrenches@lists.re-wrenches.org>, > Date: > 08/06/2015 10:16 AM > Subject: > Re: [RE-wrenches] to flash or not to flash > Sent by: > "RE-wrenches" <re-wrenches-boun...@lists.re-wrenches.org> > > > > Daniel, > > My answer is to flash until others prove me wrong. > > I am in the same position you are, speaking to the same manufacturers you > are, and probably dealing with the same low competitor pricing you are. > These products sure sound tempting. > > Over the past decade I have probably removed a dozen 80's era hot air or > hot water systems that were directly attached to roofs (installed by > others). In every instance the roof was a complete mess and required deck > replacement. I now tell homeowners just to contact a roofer and have them > dispose of the collectors in the process of re-roofing - we will come out > after the new roof is in place. > > I think you summed up the sealant problem quite well. I sell my systems > as a 25 year product. I am not satisfied that butyl is a 25 year answer. > Until someone convinces me otherwise, I will relate as much to my > customers and proceed with proper flashings. > > Good poll. > > Matt > > > Matthew Partymiller > Solar Energy Solutions LLC > (877) 312-7456 > m...@solar-energy-solutions.com > > > On Thu, August 6, 2015 12:47 pm, Daniel Young 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: RE-wrenches@lists.re-wrenches.org >> >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> >> List-Archive: >> > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.ht >> ml >> >> List rules & etiquette: >> www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> www.members.re-wrenches.org >> >> > > > > > _______________________________________________ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > > > ______________________________________________________________________ > This email has been scanned by the Symantec Email Security.cloud service. > ______________________________________________________________________ > > > _______________________________________________ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > > _______________________________________________ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
