Geocell is great stuff. I installed tubular skylights for years, and that's what the manufacturer supplied. I believe it was the 3300 pn which is polyurethane however and states it is for roofing!
Jeremy Rodriguez, President All Solar, Inc. 1463 M Penrose Colorado 81240 719-372-3808 office 719-372-3804 fax www.asolarelectric.com Sent by Jeremy's iPhone. Sorry for typos and shorthand! > On Apr 15, 2014, at 2:37 PM, "Kirk Herander" <k...@vtsolar.com> wrote: > > I now use a product called Geocel "Green" 4500. Has the temperature > properties Tom describes and bonds to EPDM, metal, asphalt, concrete, wood, > the label says. Geocelusa.com. > > > Kirk Herander > VT Solar, LLC > Un-Common quality since 1991 > www.vermontsolarnow.com > dba Vermont Solar Engineering > NABCEPTM Inaugural Certificant > VT RE Incentive Program Partner > 802.863.1202 > > -----Original Message----- > From: re-wrenches-boun...@lists.re-wrenches.org > [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Tom Lane > Sent: Monday, April 14, 2014 9:59 PM > To: re-wrenches@lists.re-wrenches.org > Subject: [RE-wrenches] Flashings versus Sealants > > Education time , Sikaflex is NOT recommended by the manufacturer to use on > asphalt shingle roofs , no polyurethanes are recommended for asphaltic > materials and they are not rated above 170 F . Likewise no silicone > sealants should be use as they DO NOT STAY ELASTOMERIC . PLEASE read the > product specifications of the materials you are using . They must stay > elastomeric from 40 F below zero to 200 F or they are not acceptable . > Rubber butyl nitrile like Ruscoe www.ruscoe.com are the only type of > sealants that have UV resistance and stay elastomeric and are rated from 40 > F below zero to 200 F . Do not argue against the product specifications on > the product data sheets . All L feet and flashings should use a sealant , if > you think you can use flashings without a sealant - GOOD LUCK - you will > need it on a rain pouring down a roof with a hard rain blowing up the roof . > Your job is only to stop leaks and keep high winds from blowing the PV > modules , solar hot water collectors , o r pool collectors off the roof . > You do not create the solar electric energy or the thermal power . The > roofing work is solely to install the product to code and under the PRODUCT > SPECIFICATIONS of the roof materials you are using to prevent damage to the > roof and the contents below . Stop using urethane sealants and silicone > sealants period in harsh environments on this planet where they are not > specified by the manufacturer on the product data sheets would be a > beginning . Only lead or copper , aluminum , marine grade stainless steel > flashings for piping will last for 100 years . Aluminum and copper flashings > must be used with the appropriate materials . Metal roofs sometimes require > EDPM rubber flashings for pipe penetrations ,BUT , it must be protected from > direct UV light to last 100 years . Gator Tom PS : sealants should be under > the L feet or U channels or flashings on the roof AND over the top of the > lag bolts , j or hook bolt , or all thread rod bolts nuts . > > > Sent from my iPad > _______________________________________________ > List sponsored by Home Power magazine > > List Address: RE-wrenches@lists.re-wrenches.org > > Change email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out participant bios: > www.members.re-wrenches.org > > _______________________________________________ > List sponsored by Home Power magazine > > List Address: RE-wrenches@lists.re-wrenches.org > > Change email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out participant bios: > www.members.re-wrenches.org > > _______________________________________________ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
