Just like the trailers awning, other than high noon awnings offer little shade protection… you either need to have the sun on the other side of the trailer or use shade curtains like these…

The popup canopy likewise offers little in the way of shade protection and the 12x12 would make little difference when compared to the 10x10… it is completely dependent on the suns angle and rain protection dependent on the wind…
I use shade curtains with mine for shade( usually only needed on one or two sides) and nylon side curtains for rain protection… I have absolutely no problems with the rain pooling at all…
With the nylon side curtains tied open and closed… the shade curtains I make myself…

