1. First determine whether the sun room height meets the requirements. Whether it is necessary to smash the wall, build the wall, do waterproof, connect the pipe, connect the electricity, remove the old facilities, etc.

2. Communicate and determine the missing corner and hole position of the top surface, the missing corner and hole position of the facade, or the exhaust fan on the top.

3. The top surface waterproof, how to deal with, if there is no 100% treatment, you have to explain to the owner. Waterproofing of walls and Windows with outward sloped water.

1. Confirm the installation position of the sun room or doors and Windows with the owner and draw the installation line of the sun room or doors and Windows on the wall (the outer edge line of the door and window profiles).Explain to the owner that there is a certain error gap (about 2 cm) between actual construction and line drawing.

2. Mark the number of each line segment on the sunroom effect diagram to the height of the horizontal line. These dimensions should be verified twice and no uncertain measurement data should be used.

3. Installation to customer satisfaction.