A . Site selection of the former rooftop photovoltaic array:

1. Roof structure (fixed bracket to ensure waterproof).

2. Purlin spacing, direction, dimension distance.

3. Roof solar structure and component arrangement.

4. Avoid shadow occlusion.

B. Do a good job of waterproofing

When installing a photovoltaic system, the first thing to do is to ensure that it is installed without damaging the roof. The roof with a waterproof layer needs to avoid punching holes, and the color steel roof needs to use waterproof glue or rubber pads for punching holes.

C. Arrangement of length and width of components

During installation, the length and width of the components are determined according to the roof area. When the long sides of the components are perpendicular to the keel, the support cost is saved. When installing, reserve the width of the wiring trough.

D. Color steel roof load

Under normal circumstances, installing solar panel generation equipment on the steel structure workshop will increase the weight by 15 kilograms per square meter. The roofs of large commercial enterprises generally have drawings from the original design institute. If we can obtain the drawings before the inspection, we can learn more about the roof structure and electrical structure. distributed. Check whether the roof load meets the installation requirements through the drawings, check the design value of the dead load in the architectural design description, and determine whether other loads are added in addition to the roof's own weight, such as pipes, hanging equipment, roof attachments, etc., and determine the dead load Whether there is a margin to install photovoltaic power plants.