Roof pitch, also called roof slope, is the term used for referring to the steepness of a roof, more exactly, to how many inches the roof rises for every 12 inches in depth. For example, if your roofer tells you that you have a 6/12 roof pitch, what he means is that your roof rises 6 inches for every 12 inches measured horizontally. There are two methods a credible San Ramon roofer uses for calculating roof pitch: one way is to measure from the top of the roof, the other is to measure from the bottom, starting at the rafters.
How steep or how flat your roof is matters for various reasons. Among others, the pitch will determine the types of materials that can be used and it will also define the overall style of your building. In terms of pitching, there are two basic roof types: sloping roofs, with pitches ranging between 4/12 and 9/12 and flat roofs that are, in fact, never completely flat for practical reasons, such as drainage purposes, but look flat. Either roof type comes with distinct benefits – sloping roofs are the best solutions for areas that get high amounts of precipitation and roofs need more efficient drainage, while flat roofs are more suitable for dry regions.