Many in the construction industry would ask something similar, given the fact that they have relied on CAD for their design projects down the years. Yet, the architecture industry has moved from the traditional Computer Aided Design (CAD) platform to Building Information Modeling (BIM) for an improved design and operational analysis. CAD is now outdated and does not come with the advantages and functionalities that BIM offers.
BIM renders a depth of information and quality in the design model which CAD cannot deliver. To better understand the benefits of BIM over CAD, let’s take a look at both of the approaches.
What is CAD?
CAD adopts the ‘paper and pencil’ design approach by developing two-dimensional digital drawings based on 2D graphic objects like lines, texts, hatches. It is like putting some unintelligent lines on the paper as the traditional design using pencils and limited to that. Of course, there are certain other helpful functions like using 3D bricks, walls, windows and determining their quantity.
CAD designs are created separately like paper drawings and any changes have to be carried out in all the drawings manually.
What is BIM?
BIM plays out the real construction process in a virtual environment. Instead of making 2D drawings, designers can use imitations of physical objects like bricks, pipes, ducts and other materials to construct the building.
Different aspects of construction like engineering weight bearing details, plumbing, ventilation can also be designed and monitored in real time. It is like creating your building just like you would in real life, and you can determine what effects your design decisions are going to have on the whole project.
Is it Worth to Switch from CAD to BIM?
The plethora of services and functions that BIM brings make the shift a wise option. Let’s dive deep and see the real benefits of switching from CAD to BIM.
Using CAD you can add and determine the quantities of objects like bricks, blocks, and insulation. But the number of such objects is limited in a CAD platform.
A BIM platform comes with many more additional key products which give the designers more freedom and flexibility. For example, for designing external walls, specifications like wall cavity, ties, trays, lintels, weep holes can be added.
It has to be noted that the key products are not same in all the BIM platforms, but they are far more and detailed than CAD.
BIM platform can be effectively used to collaborate between the various team members in a project. All the data is stored in a centralized virtual system and any changes reflect in all modules.
This makes for effective communication and exchange of information between the team.
Savings in Cost and Efforts
BIM consulting can help a construction company determine the outcome and reduce its operational costs and risks through real time simulation. When a change is made in any part of the design, the consequences are updates in all other parts of the building.
In the case of CAD, you have to change every piece of design separately!