Our 3000i is cable locked to the rear when parked and sitting atop a plastic milk crate, so its off the ground. I carry beach umbrellas and bungy cord it to the carry handles and keep the umbrella about a foot above the generator. It gets lots of air and the rain unless blowing real hard, stays off the generator as the umbrella is 4-5 feet in diameter. Been doing that for years camping totally exposed on the outer beaches. We also have a screw base for hard soils. Turns the holder into the ground and place umbrella pole into that.
That said i have seen small tents made for generators as well.