Mahalo for your response Sam. That makes me feel a little better.
James B. Rudolph Independent Energy C-39784 ES #10816 NABCEP Certified PV Installer since 2009 #091209-155 C. 808.313.9701 On Thu, Oct 26, 2023 at 6:08 AM Sam Haraldson <s...@onsiteenergyinc.com> wrote: > James, > > I can think of one install I performed in 2017 that was a metal roof over > metal purlins and we opted to through-bolt the entire array using one > installer on a ladder inside and another on the roof. We employed butyl > mastic and large fender washers to attach a strut frame to the roof, and > then we installed traditional L-feet and rails atop the strut. I have zero > experience working with tile so I don't know what your best methodology is > there but I can attest that the through-bolting has held up well at that > site the past five years. > > Sincerely, > Sam Haraldson > > [image: OnSite Energy] > <https://www.google.com/url?q=https://onsiteenergyinc.com/&source=gmail-html&ust=1677085494759000&usg=AOvVaw2NN36GoM1sjnS4RdC8Svt-> > > SAM HARALDSON > Field Operations Director > (406) 551-6135 > 1515 N. Rouse Ave Bozeman, MT 59715 > Locally owned and operated since 2012 > [image: B Corporation] > <https://www.google.com/url?q=https://onsiteenergyinc.com/bcorp&source=gmail-html&ust=1677085494759000&usg=AOvVaw0EluC1lXtz2KlRFag-htKe> >
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