It always depends on the environment around your home. Factors like sun, shade, overhangs, precipitation, paving vs groundcover, proper drainage and ventilation, and possibly other factors can affect the performance of cedar and any other siding. Elevations that are protected from the weather may perform differently from elevations on the same home that are more exposed.
We use the general rule of 3-5 years on Semi-Transparent finishes, though we have seen circumstances where the finish lasts far longer due to shade or overhangs.
Solid Color finishes build a film and block UV rays, and typically protect the fiber beneath for far longer than Semi-Transparent stains. Depending on the solid finish you choose, we recommend inspecting your finish and caulking after 7 years or less. Super light (white) and super dark colors may require recoating for aesthetic purposes long before the same step is taken on a medium gray or tan.
Please see our coating warranties here and our recommended maintenance here