Winter 9am
Winter 12pm
Winter 4pm
Summer 9am
Summer 12pm
Summer 4pm
As you can see from the sun path / shadow analysis above the eastern sun on the building does not cause much of a concern in relation to passive cooling. The main concern is the summer morning sun where it enters the building in the kitchen area between sunrise and 12pm. My proposal would be to modify the over hang of the roof to reduce the sun heating up this space in summer, see below for revised roof.
Summer 9am with modified roof.
The roof extension has definitely improved shading - that's good. maybe the deck needs a bit more shade though - even some umbrellas might do.
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