Give some of the disadvantage of installation drawing?

1. Time-consuming: Installation drawings can be time-consuming to create, especially for complex systems or machinery. This can delay the installation process and increase overall project timelines.

2. Costly: Creating detailed installation drawings can be expensive, as it requires skilled drafters or engineers to accurately depict the installation process. This can add to the overall project costs.

3. Limited flexibility: Once installation drawings are created, any changes or modifications to the installation process may require significant revisions to the drawings. This can be time-consuming and costly.

4. Lack of clarity: Installation drawings may not always provide clear and detailed instructions for installation, leading to confusion or errors during the installation process.

5. Maintenance and updates: Keeping installation drawings up-to-date and accurate can be a challenge, especially as systems or machinery are modified or upgraded over time. This can lead to discrepancies between the drawings and the actual installation.