We use the SDS galv up here in the mountains, they are tough, haven't snapped one, the engineer loves spec'ing them.
Sincerely, Chris Worcester Solar Wind Works NABCEP Certified PV Installer Phone: 530-582-4503 C: 530-448-9692 Fax: 530-582-4603 www.solarwindworks.com <http://www.solarwindworks.com/> ch...@solarwindworks.com "Proven Energy Solutions" From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Ray Walters Sent: Monday, February 18, 2013 10:42 AM To: RE-wrenches Subject: Re: [RE-wrenches] Corrugated roofing mounts The Simpson screws look very similar to the Headloks. I just looked at the Simpson SDS, and I see they are available in 316 Stainless as well. That would be my choice near the ocean, but I'm guessing they're spendy. R.Ray Walters CTO, Solarray, Inc Nabcep Certified, Licensed Contractor 808 269-7491 On 2/18/2013 11:08 AM, William Miller wrote: Ray: We use the Simpson 1/4 by X" "Strong Drive" (SDS series). We get them in the hot dip galvanize version. They are readily available locally. I think building officials like the Simpson name on structural products. They self drill and we have had no instance of them snapping off while being driven. William Miller At 09:26 AM 2/18/2013, Ray Walters wrote: I've got a project right now on a steel roof. I was just at a trade show last week, so I got to look at the latest gizmo from S5. I didn't like it at all, it didn't go into the valleys like the old mount, but drilled 4 holes into the side of the ridge, and just counted on the roofing to hold the modules. I wanted to use the new ZEP rack, but never heard back from them, I guess my project is too small (4 Kw). I'm going with SnapNRack blocks through the ridge top, and I'm going to go through the purlins into rafters or 2x blocking as needed. Also, a related subject, I'm using the new HeadLok Lags from FastenMaster. They claim to be stronger than a 3/8" lag, but they have a 3/16"D shaft. I've had trouble with regular cheap Home Depot lags twisting off, so at least these have actual strength ratings, and don't require predrilling. They also have a no rust guarantee.... Has anybody else used these? (or the similar Timberlok)? Thanks, R.Ray Walters _______________________________________________ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & 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
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