What is the quota of tile roof? What quota knowledge does tile roof have?

"Garden Antique" quota should be applied to the ceiling. The roof is calculated in square meters according to the size shown in the figure, and the quantity of double eaves area is calculated separately. The area occupied by front ridge, vertical ridge, ridge, surrounding ridge, inclined ditch, hook head, dripping water, roof, etc. is not deducted. 1. The horizontal length of the roof head shall be deducted according to the size shown in the figure, and calculated in extended meters. The roof of Yunxiang is the length of arc.