The insurance hoops are wild, right? Mine wanted a full structural analysis, like I was building a rooftop jungle gym for elephants. I had to explain sedum isn’t exactly heavy-duty. And yeah, the squirrel discussions… never pictured myself debating mesh gauge with an adjuster, but here we are.
That structural analysis thing is wild—I had to get one too, and my “green roof” is basically a few trays of sedum, not a full-on rooftop rainforest. Here’s what worked for me: I asked the engineer to write up a super basic report, just confirming the roof could handle the extra weight (which, honestly, was less than a heavy snowfall). Cost me under $200. As for squirrels, I went with the cheapest mesh Home Depot had. Insurance guy didn’t even blink once he saw it. Sometimes I think they just want to check boxes.
That’s pretty much how it went for me, too. I was expecting a whole ordeal, but the engineer just checked the plans, poked around up there, and wrote up a simple letter. Didn’t break the bank. The squirrel thing made me laugh—I did the same mesh trick and honestly, it’s held up better than I thought it would. Sometimes these rules sound intimidating, but once you start, it’s mostly paperwork and making sure you tick the right boxes.
Sometimes these rules sound intimidating, but once you start, it’s mostly paperwork and making sure you tick the right boxes.
That’s been my experience too, though I’ll admit I was pretty skeptical at first. The way everyone talks about permits and inspections, you’d think it was a nightmare. For me, the trickiest part was actually figuring out which forms to fill out—nobody at the city office seemed to agree on what counted as “structural modification.” Ended up having to call twice just to get a straight answer.
As for the engineer, mine barely spent ten minutes looking around before signing off. I kept expecting him to find something wrong with my joists or say the slope wasn’t right for drainage, but nope... just a quick check and a letter. Not cheap, but not as bad as I feared.
Funny about the mesh—squirrels are relentless where I am. I doubled up after seeing one chew through my first attempt. If anyone’s reading this and thinking about green roofs, don’t underestimate local wildlife. They’ll test every corner of your work.
All in all, more hassle with paperwork than actual building. Once you get past that, it’s pretty straightforward—just keep your expectations realistic and double-check what your city wants before you start tearing into anything.
Totally relate to the city office confusion—mine acted like “structural” was some kind of secret code. I swear, every person I talked to had a different answer, and one even handed me a form for a swimming pool? The engineer bit cracked me up too. Mine barely looked up from his clipboard, nodded at my rafters, and was gone before I could offer coffee. And squirrels... don’t get me started. I’m convinced they’re plotting to reclaim my roof as their own personal salad bar.