An as-built drawing is submitted by a contractor who is working on a construction project. It contains all of the details about the modifications or changes made in the project from the beginning of its construction till its end. As-built or as-installed drawings also include the locations of switches, pipelines, wiring, and other things. They help the engineers and workers to locate the desired place immediately without wasting any time.
A contractor or engineer has to record all minor and major changes made in the project. It helps in getting an exact rendering of the project and fixing the errors is much easier. Even if the contractors go by the perfect plan created by them, there are several issues that they have to face during the construction and due to these issues, they have to mention all of the changes made.
Features of as-built drawings:
- As-built drawings give an exact idea of the project, how it is going to be built or how it has been built. They are created in the beginning or at the end with the same purpose.
- With the help of as-built drawings, the engineers know about all of the changes made in the projects. These changes are marked with red ink to make them more visible.
- All of the changes mentioned in mechanical As Builts or other types of as-builts are mentioned with the date and location. Besides that, the contractors have to mention these changes in writing to make them understandable and to avoid confusion later.
- The scale of measurement used in the as-built drawings is the same that was used in the original drawing.
Why do we need as-built drawings?
- As-built drawings are very useful if there’s any need for renovation in the project. It saves the time of engineers or designers working on the same project again and they eliminate the uncertainty.
- In some specific types of as-built drawings, there is a mention of the location of fire hydrants, sprinklers, and fire hoses. This is very helpful for the fire department if any emergency occurs within the building.
- With the help of as-built drawings, you can record all of the facilities present in a building. If any problem occurs, the maintenance team can get to the location without wasting any time.
- If you’re willing to sell the property, the presence of a set of as built drafting is very helpful in its selling. As with the help of them, the buyer will be aware of any changes made during the construction, if any renovation is required, and what modifications have been made so far.
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