Cathi.HayesCathi Hayes

Cathi Hayes is an architect, building information modeling (BIM) pioneer and strategy leader with more than 20 years of experience developing and implementing workflow improvements in various facets of the building design and construction industry. Early on her career, she established Revit as an industry changing model-based design technology in the architectural design industry. She later served as strategic BIM manager for Autodesk, establishing the company as a primary resource in the US residential, commercial and government markets for design, engineering and construction collaboration to help improve workflows and reduce costs. As BIM strategy and business development director for Leica Geosystems, Cathi focuses on helping building contractors achieve greater success in BIM through the adoption of leading-edge hardware and software solutions that make it easy to move from 2D to 3D workflows and extending the value of BIM into the field. Cathi is a trusted BIM advisor and a leading voice on BIM throughout the North American construction industry. She holds degrees from North Carolina State (BEDA Architecture) and the University of Kansas (PBA). She can be reached at

All articles by Cathi.Hayes


How Mallory Collier Drives BIM at Brasfield & Gorrie

Mallory Collier, the lead virtual design coordinator for Brasfield & Gorrie’s Nashville operations, has a long history with building information modeling. Collier’s experience with BIM goes all the way back to college, where she was a member of the first BIM competition team at Auburn University. “I did my thesis on BIM,” said Collier. “We
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Three Key BIM Trends in MEP Layout

What are leading-edge mechanical, electrical and plumbing (MEP) contractors focusing on this year as a way to boost their BIM capabilities? Here are three trends I’m seeing. 


Three Projects That Show How GCs Apply BIM

Practically all general contractors have heard about building information modeling (BIM), but what are the applications of this breakthrough technology in real life? We recently checked in with Russell Gibbs and Shawn Mancill at Brasfield & Gorrie, one of the nation’s largest privately held construction firms, to learn more about how they are tying together
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When to Use a Scanning Total Station vs. a Dedicated Laser Scanner

When is it best to use a scanning total station versus a dedicated laser scanner? It’s a question we’re increasingly being asked by professionals who want to improve accuracy and reduce rework on their construction projects. In both new construction and renovations, the rich, complete data captured with a laser scanner provides the required information
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Four Steps to Connect Models to Field Work

For most contractors, accurately connecting information from the office to the field, and from the field back to the model in the office, is an ongoing challenge. In the office, the building information modeling (BIM) or virtual design and construction (VDC) group can push information and models out to the field all day long, but
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Five BIM Predictions for 2015

Building information modeling has become an integral part of the way many construction firms do business. More and more contractors are seeing the benefits and value of BIM and using it to take a more proactive approach to construction. Exciting things are happening in BIM this year! Here are some of the trends you should
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Laser Scanning: A Better Way to Analyze Concrete Slab Flatness

Most of the methods used today for conducting slab flatness analysis are manual and labor intensive. Floor flatness/floor levelness (FF/FL), a commonly used method, requires the creation of a grid on the concrete slab following a set of specifications before taking manual readings. Contractors that use the ASTM E1155 standard method for determining floor flatness (FF) and
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Two Hot Trends to Watch at World of Concrete 2015

Exciting things are happening in the concrete industry, driven by the emerging requirements of owners and general contractors to incorporate intelligent 3D model based design into layout and construction to reduce costly rework and keep projects on schedule. The World of Concrete show in Las Vegas next month – one of the top shows in
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An Easier Way to Manage Revitalization Projects

Urban revitalization projects are often fraught with challenges due to inaccurate or incomplete documentation. Fortunately, there is an easy way to capture as-is conditions, inform the model with accurate data, provide quality assurance checks during construction, and capture progress milestones for a highly efficient building process.


BIM Field Trip Keeps Four-Story Residential Construction Project on Track

Ensuring the perfect fit of steel beams in commercial and residential buildings requires more than line drawings and spot measurements. On complex structures with contemporary designs, creating a seamless flow of accurate data in a 3D digital environment is often the only way to get the job done right the first time around.


BIM 101: The Basics of Back Checking for Quality Assurance

If you are already taking your layout points out of the office and into the field, that is a major accomplishment and one that positions you for success using BIM in the field. However, it’s always best to “measure twice and cut once,” as the adage goes, so now is the perfect time for some
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BIM 101: Getting Layout Points to the Field

If your BIM data has already been prepped for field layout, you’re ready for the next step: taking it into the field. Armed with BIM layout points, plan underlays and reference models, you are now ready to shoot points on the jobsite that replicate the accuracy of BIM in the office.


BIM 101: 6 Cool Apps for Viewing 3D Models in the Field

We’ve all heard about the trend of “Getting BIM to the Field.” Typically, models were used in the office for pre-con and not something that applies to field work, where 2D datasets are the norm. Although the 2D process is familiar, it limits the amount of information available to the construction team. Taking the model
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BIM 101: How to Prep Model Data for Field Layout

If your project is working with highly accurate models in the office, that’s a good start for BIM. In many cases, however, the model data isn’t being used directly in the field. At best, this information gap drives up project risks; at worst, it results in errors and delays that can derail the entire construction
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Did You Correctly Identify This Image?

In the recent Leica Geosystems BIM Challenge leading up to Autodesk University 2013, we asked you to correctly identify the image above for a chance to win cool prizes. Did you choose the right answer?


BIM 101: Total Station Measurement Methods

If you’ve decided to invest in total station layout, you’ve taken a good first step toward providing BIM services. However, how do you know what type of total station you need?


BIM 101: How Total Station Layout Benefits Construction Contractors

Total stations enable contractors to measure angles and distances extremely accurately for laying out new construction and as-builting existing construction using discrete points. Available in both manual and robotic options, they use a solid well-proven technology that originated in distance measurement applications for the military. They have been used in surveying and engineering applications for
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BIM 101: When to Use a MultiStation for BIM

The Leica Nova MS50 MultiStation is a very exciting technology for the construction industry, especially in the area of quality assurance for general contractors.


BIM 101: Three Basic Tools for Digital Layout

Getting started with BIM and digital layout can seem like a monumental task if you don’t know where to start. The first step is understanding the “lay of the land” – what are the parts and pieces, and how do they fit into your business. From there, it is much easier to strategically choose a
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How LOD 350 Benefits BIM for Building Construction

The BIMForum recently released the 2013 Level of Development (LOD) Specification, which includes a new LOD level – LOD 350. Prior to this development, the AIA G202 LOD definitions left a lot of room for interpretation by designers and engineers, thus creating uncertainty about model integrity by downstream users. General contractors often recreate models from
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How to Bridge the Gaps in BIM

For many construction contractors, building information modeling (BIM) is primarily an office tool that provides valuable insights before crews begin their work on the jobsite. From there, however, the model is often converted to a 2D drawing that is familiar but limited in the amount of data it can offer. Construction crews proceed the best
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How to Make the Most of BIM in Construction

If your firm is using building information modeling (BIM), you already know the benefits it brings to the construction process and your clients’ management of their assets. But are you reaping the full advantages of BIM?


Concrete Contractors Punch a Winning Ticket with Leica Geosystems’ BIM Field Trip

Not to be trite, but this is a game changer. BIM has revolutionized construction industry communication. Data, specifically digital data, is the new operating language for architects, structural engineers, general contractors and the constructions trades. I never imagined the BIM transformation would come this far, this fast.


10 Reasons Why Leica Geosystems Is the Concrete Contractors’ Go-To BIM Source

As a concrete contractor, your ability to win project bids often turns on your compliance with industry best practice. One key differentiator in a crowded contractor marketplace is building information modeling (BIM). The fact is, more and more owners and general contractors expect BIM-compliance in their project team selection process. What is your BIM capability?
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Why BIM Is a Concrete Contractor’s Golden Opportunity

Building information modeling (BIM) is rewriting the book on how buildings are designed and built, adding unprecedented levels of digital precision and visual understanding. The construction trades, including concrete contractors, stand to reap huge business benefits from BIM enablement. Leica Geosystems, a global provider of BIM construction solutions, has emerged as the go-to resource for
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Transforming Concrete Construction with BIM

Concrete construction is undergoing a rapid digital transformation. Long-held design and construction processes are rapidly giving way to digital building information modeling (BIM).