Ray, I have had good success with flat rubber membrane roofing. I have not had good success with caulked seams, so i run a continuous peice and lap the corners. A stapler won't hold the laps so i will drive a wood screw into the box corner to hold it tight. It has never gotten gooey on me even with clients that think their batteries need to be full to the tippy top :-}
Kris On Thu, Jan 28, 2016 at 4:25 PM, Ray Walters <r...@solarray.com> wrote: > Hi All; > > We're looking to improve our battery box construction, and are considering > using 1/8" think polypropylene sheeting. I've used small premade boxes > before, but this will be for a HUP install, and we would want to build the > box around the batteries after. Does anyone have experience/ comments on > welding plastic? The alternative would be to just seal the seams with acid > resistant caulking. (silicone, Geocell, ?) > I've had good luck in the past just using 10 mil plastic sheeting stapled > up on the inside of a plywood box, but we will be scooting 1000 lb > batteries around on it, so I don't think the sheeting will hold up. > > Thanks, > > -- > R.Ray Walters > CTO, Solarray, Inc > Nabcep Certified PV Installer, > Licensed Master Electrician > Solar Design Engineer > 303 505-8760 > > _______________________________________________ > 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 > > -- Shine On! Kris Schmid Legacy Solar, LLC 864 Clam Falls Trail Frederic, WI 54837 www.legacysolar.com 715-653-4295 NABCEP Certified PV Installer Licensed Wisconsin Master Electrician BSEE
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