[Right Wing Professor]

If you had a solid canopy of ice, with full integrity, it would function as a bubble would it not

I don't think it would have the tensile strength to hold together.

[ThinkPlease]

I don't think it would have the tensile strength to hold together.

Don't forget tidal effects from the moon and sun.

[Karl_Lembke]

If you had a solid canopy of ice, with full integrity, it would function as a bubble would it not

I don't think it would have the tensile strength to hold together.

Not to mention that without support, the ice shell would begin to drift after the first perturbation, and very soon thereafter be pulled into the earth to shatter into bits.