Automatic opening vent manufacturers will refer to the project construction drawings when calculate the roof smoke vent price. From the building construction drawings, you can see the building design instructions and the roof plan.

I. Architectural design instructions: If there are technical requirements for roof smoke vent, the main roof structure (color steel roof, waterproof coiled roof, concrete roof), and roof color steel plate requirements.

2. Roof plan: You can know the size, number, and arrangement of smoke hatch skylight.

(1) Information can be extracted from the floor plan of the ridge ventilator:

A. The width, length, number of groups and arrangement of the opening;

B. model and size requirements;

Note points:

A. The end of the length of the roof ridge ventilator must be at the axis position, which is an integer multiple of the column spacing and cannot be suspended;

B. After knowing the automatic opening vent model and the corresponding atlas, compare the corresponding atlas to find the specifications and dimensions (width, height) of the skylight;

(2) Extracting information from the plan view of the roof vents along the slope:

A. The width, length, number of groups and arrangement of the opening;

B. Ventilation skylight product model and size requirements;

C. The distance from the roof line;