I've been remiss in adding updates lately, so here goes. We finished the garage ceiling yesterday, and that was the last big item. I still have to add the water heater and the heating system for the radiant heat but that should be pretty simple.
Concerning the ceiling, I used PVC panels from Menards, but I think the experience would be the same whether using these generic pieces from China or the other brands (Trusscore, DuraMax, Extrutech, EZ LIner, etc...). Cutting the panels was easy, but I followed others' advice and reversed the blade on my radial arm saw for a cleaner cut. Not all the brands make the necessary trim pieces (Menards doesn't have anything), so I ordered the J Trim Trusscore pieces through Home Depot. Some brands also had specific angled H Trim pieces for the top of my cathedral ceiling, but shipping costs and/or delivery times led me to use a vinyl siding trim piece that was in stock at Lowes. It worked great.
One issue (with the J Trim and the full boards) was the spacing of the slots for screws. Sometimes they lined up perfectly, but sometimes the only way to hit a joist was to screw directly through the material. The slots are there to allow expansion / contraction, but it's just not possible to use them all the time. We'll see how it settles over time.
I also put up garage lighting over the weekend. I went with the 10,000 Lumen MasterForce lights from MEnards ($26 each). I put four outlets in the ceiling, so I can use up to 12 lights, but that won't be necessary. I started with four, and will add more if I need them.
FYI - for the radiant heat, I think I've settled on the HUG Hydronics system. It is extremely simple compared to the closed and pressurized systems.
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