Roof Surface Calculator (com.karlytau.Surface_toiture) on Google Play
This tool allows you to calculate the area of a gabled roof or single slope with a little method.You can use it to calculate the frame, glass wool and slates, tiles or sheets.This application allows the slope calculation in degree, percent and Pitch rate, it is always easier than doing by hand ans more seriously.All mesures are in Meter or square Meter.good work and good luck.