Roofing materials for private buildings can be divided into 2 groups: “heavy” and “light”.
The «light» roofing materials include bitumen tiles, metal tiles, and t. D.The weight of the roofing material should not exceed 5 kg/m2.This group of roofing materials has a low cost compared to “heavy”, as well as easily mounted, dismantled, and disposed of. Used for buildings with a low bearing capacity of the frame and walls. However, the «light» roofs have a number of disadvantages: high thermal conductivity, fragility.