Yeah, I think you're onto something there. I've managed a couple buildings where we've experimented with adjustable pedestals, and your point about uneven installation is spot-on. They're great for drainage and airflow, no doubt, but they do require careful adjustment. I've seen pots start leaning slightly after a season or two because the pedestals weren't perfectly level or shifted slightly over time.
"placing a wider pad or rubber mat underneath the pot feet helps distribute the weight"
This is actually a really solid suggestion—I've found that adding a rubber mat not only helps spread the weight evenly but also reduces vibrations and movement from wind or minor bumps. It can make a noticeable difference, especially in areas prone to high winds or heavy rain. Plus, it protects the roof membrane from abrasion caused by slight movements of the pedestal feet.
One other thing I'd suggest considering is periodic checks throughout the year, especially after extreme weather events or seasonal changes. Temperature fluctuations can cause materials to expand and contract slightly, shifting things around just enough to cause issues down the line. A quick inspection every few months can catch these minor adjustments before they become bigger problems.
Combining both methods—adjustable pedestals and rubber mats—along with regular maintenance checks might indeed be the best overall approach. Roof upkeep isn't just about installation; it's about anticipating small issues before they escalate into costly repairs. Just my two cents based on experience...
Good call on the rubber mats—I hadn't really thought about vibration reduction before. Makes sense though, especially in windy spots. I'm curious, has anyone noticed if certain materials for the mats hold up better over time? I've seen some rubber pads get brittle and crumbly after a couple harsh winters, which kinda defeats the purpose of protecting the roof membrane...
