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You must clearly indicate if other contractors installed specialty equipment in the asbuilt drawings.Various details have to be included with all new equipment and materials, including location, size, and type of material.Include fabrication, erection, installation, and shop drawings if permitted by the contract.To demonstrate the change, write down the new value and incorporate it with a cloud. The as-built drawings must include the revised dimensions by crossing out or writing an “X” over the original dimensions. Do not delete or alter original measurements and dimensions.For detailing purposes, it is recommended that the scale of the as-built drawing matches the scale of the original design drawing.
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#What is an as built drawing manual
It will be helpful for the operation and maintenance manual preparations.
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It serves as official records for Clients/Consultants/Municipal/Electricity Boards etc.,.It will help rectify the faults which may occur in the future.It helps find the correct route and location of any MEP/Electromechanical services for future maintenance purposes.Why are as built drawings important in construction projects?Īs built drawings are important after completion of executed projects because of the following: Moreover, careful transcription of all revisions made to the specifications that occurred during the construction process should be updated in the as-builts as well. In the event that redline markups can be accepted as to be accurate, then the only effort required in as-built documents will be to review and confirm that all redline markups have been represented and reflected in the cad file drawings. Preparations of as built drawings shall be based on the approved redline markup drawings. It all depends on the speed of the project and how inexperienced the general contractor is working on the project. The issue with this option is that in the event that redlines from several contractors conflict, the main contractor could choose to use one red line instead of contacting both the subcontractors. Second way – The general contractor submits redlines for documents with multiple subcontractors (like mechanical blueprints) which will then be integrated into all the redlines into one document set. This method may be useful on certain projects but the problem arises when multiple subcontractors create as-builts of the same documents. The first way – The main contractor requires the subcontractors to produce as-builts for their respective portions of the drawings and specifications. Two ways the redlines can be transformed to as builts The documents are part of the “final set” of specifications and drawings that will be given to the owner or client. Redline drawings markup What are As Builts?Īs-builts are drawings and specifications that describe the way a building is constructed.