The orientation and slope of your roof does matter. The optimal orientation is facing true north, but east and west facing roof slopes are ok too. The optimal roof slope is 30°. In most cases a roof angle between 10° and 60° is fine to install on. Otherwise, we do offer tilt-mounting systems to optimise electricity production. Please use the chart below as a guide to better understand the effect of different roof pitches and orientations on your solar electricity system performance.