Roof leveling: This technical disclosure is applicable to the construction of cement mortar and asphalt mortar leveling layers for overall and prefabricated panel roofs with rolled materials in industrial and civil buildings.

Process flow:
Substrate cleaning → plugging pipe roots and fixing chalk lines to set slopes → sprinkling water to moisten → leveling primer for slope → laying asphalt mortar, smoothing with cement slurry → curing and rolling → inspection

(3) Asphalt mortar leveling layer:
1) Substrate cleaning: Follow the requirements for cement mortar leveling layers.
2) After the dry substrate is cleaned, apply 1–2 coats of cold primer oil evenly; the surface must be kept clean.
3) Prepare asphalt mortar.
4) After the cold primer oil is dry, lay asphalt mortar according to the designed slope.