The clear panels are going to be quite hot in the summer; you could think about using the white ones instead. Also, google the manufacturer's directions about building support under the panels, and putting in the right amount of slope. If you install these panels flat, rain will pool up on top of your roof which could make it leak or (worse) collapse under the weight if you don't build in adequate support.
I've roofed my summer coop/run with these panels, and for this fall I've attached some to the sides, too as a windblock. Next summer, I'll just take down the sides again.