Vines for summer shade...

We're building an addition. Knowing I'm a gardener, our architect has included trellises to provide additional summer shading above the first and second story windows on the south side of the house. Now I need to think about what to plant that will grow (with appropriate support) up to the 8 and 16 foot trellises and spread nicely across them.

The challenges I can foresee are:
1. I'm in zone 4a. This will need to be well established and spread across the trellis by mid June (though I don't expect that the first two years, of course) to provide good shade during the summer heat. Reduced rate of growth in the summer heat would also be good.
2. It needs to lose its leaves and/or die back around the time of the first hard freeze so that we get plenty of sun through the windows in the winter.
3. Beautiful flowers would be nice.
4. Not too heavy.

Any suggestions?

I've posted this question in the clematis group, but not many of those reach that high.

Tough parameters, but Hops are the closest fit: Humulus lupulus