I’m updating my CE credits and need courses that get into real rooftop design — wind uplift calcs, drainage layer sizing, fire breaks, and how those choices drive stormwater and heat‑island performance. Ideally something that references FLL and SPRI RP‑14; our last build was a 4-inch extensive system over 60‑mil root barrier on a 1/4:12 slope in Boston, so examples at that level would be perfect — what programs or providers have delivered for you?
I got exactly that level in GRHC’s Advanced Green Roof Design — our instructor worked through RP‑14 edge/corner uplift and FLL‑based drainage layer sizing on a 4" extensive roof; they issue CEUs and post dates here: Professional Training — Green Roofs for Healthy Cities. Manufacturer sessions can fill gaps, but they’re brand‑leaning — pair one with an IIBEC vegetative roofing seminar if you want deeper wind‑uplift math. Bring your last project’s wind map and slope and have them run the RP‑14 worksheet live.
Quick example: pairing SPRI’s RP‑14 and VF‑1 webinars with Sika Sarnafil’s AIA HSW session finally covered wind‑uplift calcs, FLL drainage layer sizing, and fire‑break layouts on a 4" extensive over 60‑mil at 1/4:12 — , actual design math. Bring your parapet height and exposure category and ask them to walk the ‘corner/edge’ zones and drain‑mat flow rates for Boston stormwater; if you want a vendor‑neutral alternative, ZinCo’s tech seminar is solid but lighter on CEUs. @s_lee1994 is right about GRHC; this combo felt more hands‑.
One thing that helped me on a 1/4:12 in Boston was SOPREMA’s Advanced Vegetated Roofing AIA HSW — they tied FLL-driven media/drainage choices to overflow and curb details, plus practical firebreaks at skylights… I left with a simple rule of thumb: “lay out the gravels and overflows before plant palettes,” which kept our 4-inch build over a 60‑mil barrier from getting redlined in peer review. Small caveat: it’s strong on runoff and detailing, lighter on heat-island quant, so I added a short albedo/UHI session afterward.