BIM Services in USA, Canada
BIM Services in USA, Canada
BIM Services in USA, Canada

Tag: BIM Service Providers

difference between BIM and CAD
BIM Service, Blog



difference between BIM and CADThe AEC industry is rapidly evolving by introducing and integrating digital technology at every stage of the design and construction process. With time, the quick evolution has led to an increase in the dilemma between clients and service providers. As new technologies are launched on a daily basis, it is increasing difficult to determine which approach is appropriate for certain applications.  

CAD, BIM, and VDC are also among the most commonly misunderstood terms in the AEC business. Many individuals confuse the three names and believe they are interchangeable. However, the scope and uses of all three technology – CAD, BIM, and VDC-are vastly different. Let’s have a look at the differences and see how each one has its own set of applications in this blog. 


First Generation Methodology, CAD – Computer Aided Design 

CAD is the oldest of the three methodologies. This is a design and documentation tool that utilizes computer technology to produce the most precise, complete, and information-rich model possible within its constraints. It’s generally utilized for planning and constructing complicated projects with various precise parts and components, like mobile phones, aeroplanes, and buildings. 

Both 2D drawings and 3D models are used in CAD. Since the 1990s, 3D CAD has been standard in manufacturing, and it has greatly benefited the industry by allowing more complicated design work to be completed more rapidly and efficiently. Its rapid adoption was partly motivated by the necessity for businesses to stay competitive, as 3D CAD allowed items to be delivered to market much faster than before, causing any company that did not use it to fall behind. Building design has become more reliant on 3D CAD.  

Enhanced Collaboration with Advanced Technology, BIM -Building Information Modeling 

While CAD is a technological tool, BIM represents a collaborative process facilitated by advanced digital technology. BIM has produced a significant positive outcome in the construction industry in recent years by providing a holistic approach to construction that combines design, construction, and documentation throughout the project lifecycle. The main difference between BIM and 3D CAD is that a BIM file contains significantly more information, such as performance parameters, requirements, and other non-physical data, all of which are incorporated in a shared 3D digital model of the project. 

BIM Modeling ServicesBuilding Information Modeling is a technologically enabled collaborative design and production process that allows architects, engineers, contractors, and clients to collaborate in a single model, both concurrently and sequentially. Prior to the project’s “breaking ground,” decisions can be made and challenges defined and solved using a shared computer-generated model and database. Prior to construction, clash detection and coordination between trades can be resolved at coordination meetings, preventing delays and issues in the field. This saves time and money while also lowering the impact on the environment. BIM also makes it possible to realize increasingly sophisticated and ambitious 3D designs successfully and safely. 


Integrated Models Management, VDC – Virtual Design & Construction 

Consider VDC as a broad word rather than a specific application or technology. VDC is a method of bringing together all of the tools, options, and services used in virtual design construction. VDC, for example, include any tool or, application that falls under the digital construction platform, such as the use of 3D scanning devices to map out installation requirements and take precise measurements, the use of software for man-hours and job scheduling, the use of drones to take measurements by flying over the site, the use of robotics system to map out areas to mark for plumbing installation comparing with the design drawings, utilizing virtual reality and walking through the site using Microsoft HoloLens and moreover, utilization of 3D printing.  

VDC is a term that refers to everything for the use and management of all of these tools and many more, that have yet to be invented. 

Applications of CAD, BIM and VDC in Construction Industry 

While these three names are closely related, the extent and uses of CAD, BIM, and VDC are vastly different. 

3D CAD is a design tool that is used to create industrial things, vehicles, and complex components. It is mostly employed in the industrial industry and is an important aspect of the engineering process. 

BIM, on the other hand, is commonly utilized for large-scale construction projects such as multi-story buildings, transportation hubs, office complexes, and other real estate projects. It is the industry standard for managing everything from design to facilities management through a unified digital model that encourages interdisciplinary collaboration. Please feel free to look through our portfolio of BIM projects. 

VDC is a step forward of BIM, however it is not as widely used in the industry as the other two approaches. VDC is an approach that combines 3D CAD and BIM principles to improve information sharing, comprehension, collaboration, and communication. The architectural design, engineering, and building processes would be more efficient as a result. 


The construction industry continues to benefit from technological advancements that save time and money while also improving accuracy. Hopefully, this walkthrough of the technology development and terminology can clarify the misunderstanding. Feel free to contact us for further discussions. 

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BIM Virtual Reality

Integrated BIM Technique with VR (Virtual Reality)

BIM with Virtual reality

Today, smart techniques like virtual reality, augmented reality with BIM and cloud technologies are paving the way to the new frontlines in the building segment. Even though virtual reality is used for various drives in different arenas, like gaming, construction is the latest industry for diving and integrating virtual dimensions in BIM 3D model. Amalgamating the techniques of BIM virtual design and construction, BIM VDC engineers are all set to drive the transformation of the construction sector. Tejjy Inc. – one of the best BIM service providers in USA integrates BIM 3D model and VR (Virtual Reality) seamlessly for improved construction productivity.

How the winning combination of BIM Virtual Construction works?

The amalgamation of BIM 3D model and VR by VDC consultants brings several advantages to verify space usage and mitigate coordination problems during the pre-construction stage. Design errors get minimized before moving ahead to practical project implementation. A virtual BIM 3D model with BIM 360 design collaboration provides clients the opportunity to comprehend the project at the design phase. BIM VDC engineers signify that the construction projects look more realistic compared to a BIM 3D model on a computer, detecting clashes and resolving them at an early stage.

What are the Options for VR adoption?

Construction companies implementing BIM weigh up several options when experiencing VR. Some of these tools encompass extensively accessible head-mounted displays like Oculus Rift, HTC Vivo, Samsung Gear VR, e Google Cardboard, Microsoft HoloLens, etc. All these tools enable the AEC project stakeholders to enjoy an entirely immersive 3D experience. They get the opportunity to virtually cross an entire building, accessing all relevant information. This gives an essential facet for monitoring costs and meeting project deadlines, ensuring that everything is flawlessly designed and planned.

VDC Consultants

What are the main features of VR?

  1. One of the significant features of VR is Motion Capture in Real Time, letting the users play in a virtual environment, without using a mouse or a keyboard for exploring buildings and rooms. Some other systems are also developed to complete body tracking systems with manifold connected sensors, making the experience as real as possible.
  2. Mixed reality (MR) is another feature for blending reality with virtual images and holograms and it is common in BIM practices. This methodology enables users to get more information on building construction or other internal constituents.

Virtual Reality & BIM Applications in Construction

  1. 3D Visualization & Modeling–Through BIM integrated virtual reality, VDC consultants enable the smooth operations of the 3D modeling process, enabling 3D visualization for all disciplines like architecture, structural and MEP. Based on parametric Revit BIM modeling objects, relationship with spatial geometry and physical and mechanical properties are elucidated in a perfect way.
  2. 4D BIM Construction Scheduling–Integrating virtual reality, BIM VDC engineers construct plan, and support virtual simulation of the building and its control. 4D application associates 3D elements, prearranged in sets, to the correspondent time schedule, enabling comparison between real work and planned sequence of the process. This facilitates a permanent actualization of construction schedules, assessments, and logistic site management.
  3. 5D BIM Cost Estimation–BIM integrated virtual reality also enables 5D cost estimation, and control of financing plan as per material take-off quantities in every constructive step.
  4. 6D BIM Energy Analysis–BIM virtual construction supports the performance of energy and sustainability building studies. BIM VDC consultants are able to make energy consumption estimate of the project and subsequently monitor, measure and verify energy consumption at the time of building occupation.
  5. 7D BIM Facilities Management–Through BIM virtual construction, BIM model is produced for supporting facilities maintenance and facilities management activities in the building at the time of occupancy.

Where to opt for VR integrated BIM Services?

Tejjy Inc. – one of the best BIM service providers in USA, integrating VR technologies with BIM 3D model. BIM VDC engineers of this company produce details of the product and planning information, valuable during design phase, throughout the building life cycle. If you want to know more about augmented reality with BIM, talk to the top BIM service providers in USA. To implement virtual BIM 3D model, or BIM 360 design collaboration, call BIM VDC  consultants of Tejjy Inc. at 202-465-4830 or

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    BIM for MEP Engineering

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    Is BIM Required For MEP Consultants?

    Owning a building is a bit expensive in USA, encompassing a substantial investment, followed by enduring costs of operation and maintenance. Nevertheless, making smart decisions during the design process will help in reducing the expenses. Implementing mechanical, electrical and plumbing MEP bim services assist in getting a really smart building design in BIM market USA.

    BIM services constitutes to be a modern engineering design tactic, that goes beyond the usage of conventional construction plans. Several BIM modeling companies near me use 3D building models with comprehensive information about the system components. Top BIM consulting companies in USA effectively create a virtual design construction VDC model before the onset of the actual construction. Revit MEP BIM services apply to all technical disciplines, embracing  MEP services, architectural and structural engineering facets.

    Given the intricacy of BIM and significant quantities of data, BIM engineering company needs specific software application. Revit happens to be one of the best-known BIM design packages from Autodesk. MEP Revit BIM services from best BIM service providers in USA provide a great support for mechanical, electrical and plumbing engineering services.

    How MEP Coordinators use Revit BIM services for MEP Engineering?

    BIM Engineering company

    • 3D BIM Model Creation        

    BIM engineers convert a detailed MEP design into a 3D model, matching roughly with LOD 300 Revit model. Accurate analysis is performed on the basis of specific systems together with constructability review, clash detection and coordination and design optimization. After the completion of the model, the 3D BIM Model is leveraged for producing MEP shop drawings/MEP drawings and 5D quantity-takeoff or BOQ.

    • Constructability Review

    Virtual Construction of the MEP project in 3d BIM model allows independent review of construction plans along with the specifications. The technique of constructability review helps to identify discrepancies in construction drawings/ MEP drawings and other  constructability issues at an early  stage of design during the preconstruction stage. At the constructability review, Revit BIM services team creates a series of Request for Information to identify the operational and constructability problems such as:

    • Missing documents/ information
    • Input inconsistencies
    • Conflicting data
    • Problems related to clearance and ease of access
    • Support system feasibility
    • No Fly-zones 

    The 3D BIM model gets updated on the basis of the RFI response. Status of all Request for Information is systematically upheld in a log and frequent follow-up is made for resolving them. The process of constructability analysis confirms delivery of quality construction documents producing just the right BIM MEP drawings/mechanical shop drawings for construction.

    • BIM Clash Coordination

    Coordinated MEP BIM models empower construction clients to check possible interference amongst all building systems. The 3D BIM model allows design firms to visualize the whole building system prior to construction, resulting in improved construction project planning. The technique of 3D BIM clash coordination reduces rework during the construction phasing, saving precious time and money. Clashes get resolved amongst  various trades including architectural, structural, mechanical, electrical, plumbing, fire protection, concrete and many other services. Navisworks software platforms help in this regard by sharing images of clashes through WebEx meetings. BIM modeling companies re-route utilities, modify elevations and re-size MEP components for resolving clashes in an accurate manner. Further, Value Engineering is provided by the BIM service providers in USA for enhancing system efficacy, decreasing costs and easier maintenance of the construction workflow. BIM engineers use the coordinated BIM models for producing quantity takeoffs, 5D cost estimation and 4D construction scheduling.

    • Construction Documentation

    Construction documents/CD sets or MEP drawings are developed from the comprehensive BIM coordinated models. The 3D BIM Models help to deliver the most comprehensive drawings, showing each MEP component with technical information. Building Information Modeling facilitates all construction documents to be cohesive and consistent. Any sort of modifications made in the design document drawings are automatically updated in the 3D model. Moreover, sections of mechanical shop drawings are produced seamlessly from the 3D model for critical arrangements.

    Get BIM MEP engineering services from the top BIM service provider in USA. Tejjy Inc. – the top BIM engineering company in BIM market USA provides accurate construction design, detailing and shop drawings for MEP services.  Consult BIM engineering company – Tejjy Inc. at 202-465-4830 or to design your MEP systems in the most efficient manner, reducing risks and enhancing construction project outcomes.

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