My house faces south, so the front rooms take direct sun all afternoon, and my son's bedroom turns into a sauna by four o'clock. I've already used smart thermostat sensors to even out the worst of those swings, but that only manages heat after it shows up. This spring I bought two silver maples, two tulip poplars, and more than 30 Green Giant arborvitae to place across 2.5 acres in Northern Indiana. Put a silver maple in the wrong spot, and you find out 20 years later, when it is 70 feet tall and shading nothing. Before I dug a single hole, I ran my address through ShadeMap and watched a full year of shadows cross my roof.