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Rooftop

Background Introduction

1. Before construction, the contractor shall assign supervisors to review the roof drawings, learn the relevant structures and decide the construction plan or technical measures for roofing engineering based on the circumstances. In doing so, it can prevent defects after construction and avoid rework. Furthermore, the project can be carried out in a systematic manner to guarantee the quality of the works.
 
2. Waterproofing works for roof shall be performed by a professional team with related certification. Uncertified or unprofessional team should not be allowed to carry out waterproofing projects. On top of that, the contractor or supervisory body shall carefully check the construction workers' certificates and strictly comply with the requirements.
 

Program description

1. Concrete structural board (insulation roof)
2. Cement mortar levelling layer
3. 2mm thick CQ112 non-curing rubber bitumen waterproof coating
4. 2mm thick PCM adhesive polymer modified bitumen waterproof coating
5. Installing extruded polystyrene board as an insulation layer
6. Fine stone concrete acting as a protective layer
7. Laying the decorative layer

Construction video


Matters needing attention

● It is strictly prohibited to carry out coiled material and heat preservation construction in rainy days.
 
● The leveling layer of the waterproof layer of coiled material shall meet the quality requirements and reach the specified drying degree.
 
● At the joints of roof corner, gutter, gutter, ridge, coiled material lapping and closing, it is necessary to carefully pave, compact, close and meet the design requirements, roof engineering technical specifications and other relevant regulations. Additional layer of coiled material shall be paved at the corner, gutter, gutter, gutter, ridge and other parts of the roof.
 
● Excessive tension and wrinkles shall be avoided when paving the coiled material. The air between the base course and the coiled material shall be fully vented. After the air is vented to both sides of the transverse direction, the roller shall be used for flattening and bonding.
 
● The lap width and paving of coiled material shall be straight, and the construction shall be in strict accordance with the line marked by the base course.
 
● Protect the waterproof layer when laying the insulation layer.