Mt Whitney Zone Forums General Discussion Is it OK for me to get on top of the summit shelter?

In order to really get on top of the highest stand-able point in the continental US, would it be ok for me to get on the roof of the summit shelter? I'm asking because I don't know how sturdy the construction is and I don't want to break anything.

Edit: Also, I was wondering if there would be enough snow on the summit during June to build a snowman? Ideally I would like to build the snowman on top of the shelter so that I can officially have the highest snowman in the continental US (and maybe even North America, assuming no one's built snowmen that high up in the Alaskan range area or Trans Mexican volcanic belt)