On Thursday, February 7th, manufacturers and AEC professionals attended in the premises of the Club Prescrire -co-organizer of the morning meeting- the presentation of François Caumont who is Director of Real Estate and Logistics of the University of Caen in the Normandy.
The University of Caen, an eclectic heritage
The real estate heritage of the University in Caen covers 118 hectares with 17 sites in 3 departments with a total of 97 buildings. Upon his arrival as Director of Real Estate and Logistics in 2013, François Caumont and his team embarked on a BIM approach. François explains: “We observed that maintenance was done separately pole by pole of skills, there was no overall vision in the service.” Indeed, problems related to the management of the premises were abundant: for example, a rationalization error when a 500-seat amphitheater was blocked for 10 students, a power cut across the campus, or a general power cut in the Law Buildings due to aging pipes in poor condition.
Beyond the desire to improve the maintenance and operation of buildings, what was the goal of that approach? That the university registers itself in a digital approach related to teaching methods.
Anticipate in order to begin with peace of mind
Before starting anything, François Caumont and his team wanted to understand how a BIM approach works in order not to be mere silent partners. François Caumont said: “I have warned everyone that we would step out from our comfort zone, that we’d go back to school, that we’d put a training plan in place, that we’d change our working habits, that everything would change.”
After conducting an audit that made it possible to make an assessment of the roles and skills of everyone in the team, the needs of the service (both material and financial) and the possible providers, the conclusion were as followed: between 2015 and 2019, the team should be able to operate and maintain the heritage of the University using BIM independently.
Digital strategy of the University: the need linked to real estate
Returning to the complementary objective to that of improving the operation and maintenance of buildings, the inclusion of the University in a digital approach related to teaching methods: what were the needs for students and teachers?
The operation and maintenance of these materials would be optimized thanks to the BIM method with a main objective of reducing operating costs (payroll, error management, quality plan…etc.)
Two pilot operations
First project: the renovation of the Building B (2014-2015) for which disadvantages and points of vigilance were identified from the beginning.
These disadvantages have been offset by some advantages and benefits:
What kind of assessment has the University made at the end of the operation? The team has benefited from a rise in managerial and organizational skills and has proven its ability to drive change.
The second pilot project involved a very complex building which is dedicated to research only: a marine station at the seaside with a pumping station, that allows researchers at high tide to study the marine environment. It is the first time that a BIM approach has been set up for such a building. The operation is in progress.
Financial, social, environmental economies… thanks to BIM
In view of the implementation of these pilot operations and pre-existing means, an expected return on investment has been established.
The estimated costs are available for consultation below:
During the presentation of these charts, a guest explained that, according to him, BIM doesn’t generate savings itself, but thanks to the information it contains it is a great decision-making tool.
François Caumont went on further: according to him, there are many savings linked to the adoption of a BIM approach. They are financial, social, environmental or even related to human resources. Regarding the University, the gains will be recorded by 2024.
This space is open to all Polantis users: it allows them to sell or buy CAD and BIM objects.
The Polantis Marketplace, how does it work?
In the seller’s perspective, downloading one’s object on the platform and filling up useful information is necessary. The final step for the seller? Set his price considering what he would be willing to pay for this object, the amounts ranging from a few cents to several tens of euros.
The architects and engineers’ teams of Polantis do a systematic sorting of the objects put on sale by members of the community in order to guarantee the quality of the objects.
The evaluation criteria are the following: the aesthetic of the object, the good integration into a digital model, the practicality, the realism, the level of detail and, for the BIM objects, the “parameter ability”.
The seller gets 80% of the sum for each sold object, the remaining 20% belong to Polantis: they will be used to improve the service or modelling other objects for the Polantis Marketplace.
In the buyer’s perspective, the navigation is like on the classic website of Polantis (for the downloads of manufacturers’ objects which are completely free) but a price is given for the objects in the Marketplace.
Several objects that have been modelled for the needs of specific projects “sleep” in the software libraries of designers. Polantis thought of bringing them back to life likely to second-hand clothing websites such as videdressing.us or vented.co.uk.
Polantis therefore incites architecture agencies to sell their objects: that moulding modelled for the need of a renovation project could be used to save time to another agency for example…
You would like to access to the Marketplace Polantis for:
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The right questions
Anis Naroura starts his presentation with two questions for the audience. Who of you was already involved in a BIM project? What questions did you think about before the start of the project?
The participants mention the following questions: What are the project’s objectives? What do we want to achieve? Do we want to achieve tools for virtualization? Extent? A tool for the operating phase? Which parts have to get modelled? What kind of contract has to be set? Who does what? How can we share the model? …
Anis Naroura confirmes that it is very important to ask oneself why one does BIM and for which objective. That’s the starting point of all BIM projects. He states several objectives:
If the teams start a BIM project without any objective, they will quickly be in drouble.
L’Îlot Pasteur, a Monacan project facing more than one challenge
Anis Naroura worked as BIM Manager on the project ‘l’Îlot Pasteur’.
It’s a very complex project situated on a closed down railway line for earthworks of 300 000 cubic meter.
The site covers 3000 m² of underground tunnels, is located 7m below sea level and is in earthquake zone 3.
The project consists of 11 programs (11 000 m² of offices, a college with 1 500 pupils, a swimming pool, a gym, a waste treatment center, …) for each of which the cooperation with another partner is necessary.
Moreover, Monaco has a digital model of the entire city. That’s why every new project has to be digitally modelized in order to integrate it into the model of the city.
The building will be delivered in 2021.
Anis asks the participants the following questions: If you were the project manager of this kind of project, what would your team look alike? What experience in BIM should the team members have?
Obviously, the participants would ask proven experience and a good knowledge of a BIM software.
Anis clarifies the situation for the Îlot Pasteur project: apart from the BIM coordinator all team members made there first BIM experience. Several were even trained by Anis in working with Revit.
The builder didn’t have a BIM manager.
The project management will remark the following benefits through working with BIM if it’s accompanied correctly and if it has clear objectives.
Anis tells about an exchange with an important design office – when Anis asked why they were not working with BIM, they told him that they actually started with BIM in 2010, when the test project crashed. Two weeks before deadline they decided to better stop trying with BIM and working with Autocad instead. Lesson to be learned? The next BIM test project should be better accompanied.
For the project Îlot Pasteur it was impossible to abandon the work with BIM. That’s why Anis had to involve all partners in the cooperation and the work on the digital model.
Anis decided to give the right information in the right moment and not all at once in order not to put to much pressure on the team or to frighten them with BIM. He let the teams proceed at their own pace.
From a geographical point of view the project management was spread all over – architects in Monaco, a design office for networks in Nice and a design office for structural planning in Marseille. Each of them could directly modify the digital model, that’s why the project was carried out on BIM level 3.
The teams collaborated via a platform with the possibility of exchanging and validating documents.
The project of a subway for Riyad
In Arabia they are about to build 6 subway lines: 26 billion dollars budget, 7 depots, 87 stations, 180 km of lines and 10 elevated railroad stations.
Together with Setec TPI Anis worked on the design of two depots, one elevated depot and one underground depot in the city center. The teams had to suggest the concept and to deliver the models to the constructors.
There were 5,700 deliverables to be provided and managed for both depots.
The complexity and the quantity of information to be provided were very important as the model should serve for construction. Anis estimates that without the help of BIM they would have needed more time and four times the number of teams.
Anis challenges the participants to find errors in the provided information – but that’s impossible as everything is handled automatically.
As for the project in Monaco, the question of the client’s anticipation was raised within the construction process. Anis was surprised to find too general information in the first version of the BIM execution plan.
It seemed impossible to him to engage in the project without specifying unavoidable elements: What should be found in the models? What level of modeling was expected? How should we name the objects? What information should be transmitted? Etc…
Without these elements, Setec would have had worked very long to satisfy the customer. The BIM execution plan was revised from 33 to 72 pages, proving that even the biggest must clearly define their needs, applied to each project, before starting with BIM.
Grande Arche de la Défense in Paris, final digital implementation file
The project concerned the redevelopment and renovation of the wing of the south wall of the Grande Arche and the opening of the roof to the public.
The Ministry for the Environment, which set up its offices at the Grande Arche, wanted to centralize the data, to be able to access it quickly, to visualize the information by the CMMS and to define its future management strategy. The company Eiffage Construction therefore asked Anis’ teams to create a digital model designed to interface with the CMMS on behalf of the ministry.
The result: a model which will be delivered in one package per 7 levels. The challenge: the model has to provide accurate and precise information. For instance, it has to identify the objects and to associate the right information to each of them.
This work had to be done for 2 000 categories, 55 000 fields of information parameters, link all documentation, technical sheets and installation instructions, …
Once again, the question of anticipation was at the heart of the project: in order to make a reliable model (native file Revit and IFC), Anis’ team members – who arrived along the way and therefore did not have the memory of the project – had to “redo the work” relying heavily on the company’s project manager.
“At what point of the project would it be necessary to make the decision to build the maintenance operation model?” asks Anis.
The answer is clear: as soon as possible. If the work would have been planned, the necessary fields could have been added to the model and the companies could have informed about them. It would have been way easier to capture all essential information sooner.
Here the information wasn’t captured in due time. That’s why the research has to be done again.
Anis concludes his presentation with the following words: “If one just does BIM to do so, there is no guaranteed profit. It’s necessary to have a clear vision of the team’s direction – the key to success is always the anticipation.”
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Polantis announces to post the BIM catalogue of Resopal online
The most renowned laminate manufacturer in Europe makes its BIM catalogue available to specifiers. The 272 references are available on Polantis’ platform from now on.
Resopal’s BIM textures (latest collection) enable to realize projects for the exterior and the interior (sanitary included).
RESOPAL® – the brand, the company and the surface, traditional and contemporary.
Resopal GmbH with approx. 600 employees in Groß-Umstadt produces functional and decorative high pressure laminates (HPL). The products are used in trains, in cruise ships, in interior fittings and on external facades, in swimming pools, hospitals and sports facilities as well as on furniture. End users associate the name with 1950s design: kidney-shaped tables, kitchens and small breakfast worksurfaces.
The brand goes back to the patent registered in 1930 by August-Hermann Römmler. As a result of its high level of brand awareness, the company, founded in 1867, was renamed in 1971. The present-day Resopal GmbH company considers itself the pioneer of laminate surfaces and continues to supply one of the hardest material surfaces for trendsetting solutions in contemporary interior design.
The company belongs to Wilsonart International Holdings LLC. It is FSC® and PEFC™-certified and is certificated for environmental and energy management systems in accordance with ISO 9001, 14001 and 50001. Since 2000 Resopal has continuously attracted attention with its sustainable corporate strategy.
The following references are provided on Polantis.com:
All references are available in the following formats on Polantis.com: Revit, Archicad, Sketchup and TEX (a texture to download to place the product in any design or rendering software): click here.
Visit Resopal’s web site to find out more about the company.
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Tipee is not originally specialized in BIM technology. The society based in La Rochelle brings together scientific and complementary technical skills of several researchers and engineers’ profiles. Each one of them is specialized in different sustainable building themes to effectively meet the challenges of the energy transition.
Since 2014, Tipee has developed a digital activity around several axes: the assistance to the owner builder, BIM management and consulting (e.g. the Social Union for Housing or the French Building Federation).
Cécile Jolas coordinates this pole, born with the project presented that morning.
Hold by the Public Office for Housing of the Urban Area of La Rochelle and coordinated by Tipee, Rupella-Reha is a winning project of the “Call for Expression of Interests” launched by the Environment and Energy Management Agency on the theme “buildings and islands with positive energy and minimum carbon footprint”. In 2013, Tipee wins the call for tender.
A small operation to “test” the BIM
This is a small rehabilitation operation of 16 housing in La Rochelle: 1,000 m² for 650 000 € of work budget.
It is since this test operation that all the BIM methodologies that Tipee now uses on a daily basis have been designed. Tipee has accompanied – and been accompanied – on this project by the architect’s drawing board and the owner builder who launched their BIM activity as well.
Between the end of 2013 and the beginning of 2014, the question whether to throw yourself into BIM was far from being obvious. Cécile Jolas even explains that “at the time, everyone was in total discovery mode”.
The building in rubble, from 1954, is a typical set of the hinterland of the Charente, which offers accommodation from a studio apartment (T1) to a flat of about 95m2 (T5) with a repeating pattern per floor. The building has not been subjected to any modification (on the structure, in terms of energy improvement, …): the 1954 plans are therefore accurate.
The rehabilitation in occupied site presents an objective of 50 square meters per year, the architects will use insulation from the outside.
The 3D scan, mixed results
At the beginning, the decision was made to test the 3D scan technology for the project.
In 2014, the price was prohibitive: the scan costed 8000€ for 1000 meters for the statement of points only (therefore no modeling).
It was also an operation in an occupied site: in order to make this statement the approval of the tenants was needed: this scan constituted an access to the private life. It was also necessary to make appointments with each tenant.
The report of such an operation is nowadays mitigated as it has been time-consuming: a day work was needed for the outside and four for the inside. Every apartment has been stated within an hour.
Indeed, the advantage of such a scan is that it was no longer necessary to return to the site for additional statements but the apartments being occupied, the furniture and the people present sometimes distorted the statements.
Nine versions of the digital model in a year
The general contractor (architects drawing board and design office) spontaneously proposed to build the digital model of the project from the point cloud: it was formed and equipped with software for this purpose. The architect chose to use Archicad while the design office equipped itself with Revit. The project being a public order, it had to be delivered in the IFC exchange format.
The first digital model was not “exceptional” according to the euphemism used by Cécile Jolas. It took 9 versions to be fully exploitable and importable in IFC.
NB: the architect of the operation now intervenes as an expert during days devoted to the exchange of models between different software. It is this project that has allowed him to develop such expertise.
The quality of the models
To realize its digital model the design office Fluides first chose a software that “has been inconclusive” and finally equipped itself with Revit.
At this point of the presentation, Cécile Jolas points out the fact that a complete and detailed model is necessary to make its exploitation possible. For example, in the case of the Fluides model, the integrity of the connectors (above the sheath and the ducts) had to be present in order to make relevant calculations. Cécile Jolas insists on the necessity for manufacturers to provide their BIM objects.
Tipee’s teams have focused on the models’ quality and the need to obtain workable elements for studies… With “perfect” models, the synthesis part was reduced: it simply had to be superimposed.
In order to obtain this quality, Tipee has worked a lot on the working documents given to the project’s stakeholders. For example, the team developed a very precise method for reviewing the model: each element that was not correct was captured and integrated into an excel with the mention of what was wrong so that the designer of the model could make corrections.
The part under construction
The project is today under construction. That part also posed question to Tipee: how to integrate in the BIM the very small companies that work on the site (in separate state bodies)?
The integration was made from a digital and collaboration perspective: the companies were asked to connect on the platform set up by Tipee (on the base of the actual Kroqi of PTNB). They had to submit the data sheets of the products laid down, their commercial references, their guarantees and maintenance notes…
The tree structure of the platform was tailored to the project with the general contractor and each company had a space dedicated to his batch to file his documents.
At first, such an operation required a lot of pedagogy and technical assistance but today these companies see the interest and the value of that digitalization.
The general contractor first since it recovers files very easily: this greatly facilitated the realization of the record of executed works for example.
The project will be delivered in 2019, Tipee keeps on supporting project stakeholders to promote their rise in competence.
In parallel with this project, the design of a tool to optimize energy costs
From this test project, Tipee also wanted to go further by creating a tool more in relation with the primary skills of the team: the optimization of energy costs for new projects or rehabilitation. The project was supported by the Environment and Energy Management Agency .
Generally, and for a project like the one that Cécile Jolas presented, we study two or three scenarios of rehabilitation. The economist, the Fluides office, etc. make their quantitative and simulations on their side.
The tool developed by Tipee reviews many interesting scenarios to better assist the design. Based on the product information found on Edibatec, it incorporates different variables for high floor, walls, windows, low floor, exterior joinery, heating system, etc.
These different products are combined to determine what is the most optimal combination of products and the best cost/consumption/performances ratio. There are a few thousand possible combination that are calculated by this algorithm (which represents around 200 years of work for a human being).
The interest of that tool? Give priority to innovative and efficient products (beyond those that one would have chosen for ease or habit).
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Moreover Camille Foucher (developer and integrator of 3D Unity in augmented reality and virtuality at Bloc in Bloc) and Arthur Rousseaux (managing partner of Liber – D) talked about their work on the presented projects.
Emmanuel Sorin wanted to give the morning a special meaning: He presented an overview of projects to the audience in order to show that the digital model is an aid to all projects if we know the objective we want to achieve.
He started his presentation with a comparison: Why use the point cloud to make an inventory and what are the advantages of using this approach compared to a 2D method?
With the classic 2D method:
With the 3D inventory and BIM:
The modeling process of the agency SONA
As part of its modeling process, the agency SONA works with three software programs: Scene (software for 3D documentation from FARO), ReCap (reality capture and 3D digitization) and Revit Architecture.
Scene allows you to choose the starting point of the height measurement, the ceiling height, the height of the stringers, the dimensions of the built elements.
Recap allows you to clean up the points and create zones. It allows the zones of a document to be linked: each zone can be identified and geolocalized using a URL.
Revit allows modeling. It takes several days of work before you can start working with the software. The modeling takes place in 4 stages:
If these steps are not followed in advance, modeling will be poor, and the inventory will ultimately not be reliable.
After this technical excursus, Emmanuel gives an overview of each project and the benefits of the BIM for each situation.
In order to understand the structure of the building and the benefits of part of the facade, the architect requires modeling the building in two “parts”. One includes the part to which the question relates, the other does not. Thus, building rehabilitation research may be performed with or without reference to that part of the structure.
If the builder needs to revert to the modeling here (next phase, the point cloud), that’s because it was useful to integrate the intelligence of the engineer, who said “this must be like that, even if we’re not sure”, in addition to the simple inventory.
Artelia asked the agency SONA for an analysis to find out how machines can be exchanged in a factory. The building shows many obstacles to the project (elevator, ceiling height of 1,70m …). How can this project be best organized? Will the size of the machines be problematic? In this case, we move away from the work of the architect. SONA’s work here provides a dimensional guarantee: the digital model allows the transition to a technical investigation.
The inventory of the skeleton building of the “shop 3” (concrete building with metal skeleton construction) of the Samaritaine, former Parisian department store, was problematic. In order to obtain a detailed structure, the builder commissioned SONA to scan the entire building. After completion of the work, each bearer received an identification number, which allowed the architect and the design office ‘Structure’ to define – for example – the bearers that were the first to be relevant to the refurbishment of the building. In this case, the model created by SONA was used as a diagnostic tool.
Usable in many ways
A tool for decision making, a technical examination, a diagnostic tool or even an augmented reality for museums, communication tools … the digital model can be used in many ways: the important thing is to define the goal of the modeling before starting the modeling itself.
As a rule, the more expensive the land, the more likely the client will use BIM to support his project.
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The Irish Kingspan Group is specialized in building and insulation materials. It is represented with 6000 employees in 85 countries, including France.
Kingspan is creating the products of the future today. Innovation is at the heart of every product, every project and every step in the manufacturing process. Kingspan innovates to propose efficient, sustainable and safe solutions to their specifiers.
Kingspan proposes different product groups:
In order to strengthen their presence on the French market and to provide their products to the French specifiers, Kingspan called on Polantis. Polantis is the leader of BIM objects on the French market and has already modeled objects for the French company Ecodis, which was recently taken over by Kingspan Group.
Three product ranges are available on Polantis’ platform: facade systems, wall panel systems and roof panel systems.
They represent 266 references modelized by Polantis’ architects and engineers in CAD and BIM (Revit) format.
Particulary noteworthy are the following three unavoidable references:
Kingspan’s CAD and BIM objects are available on Polantis.com.
For further information access Kingspan’s web site by clicking here.
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The DNA of AGP : built heritage
Art Graphique & Patrimoine (AGP) was born in 1994 from the passion for stone crafts and the restoration of historical monuments. Its R&D center, specialized in 2D and 3D architectural and archaeological surveys, has contributed over the years to the evolution of digital techniques for protecting and enhancing built heritage.
Project by project, between traditional know-how and innovative spirit, AGP has collected more than 1700 prestigious references in France and abroad. Today it is considered one of the leaders in France in its field.
The agency has a BIM department which is managed by Esther Sélo.
BIM and existing built heritage: the example of the Villa Majorelle
Esther Sélo presented the agency’s methodology for designing the model of the existing built heritage.
The creation of the building’s digital copy always starts with a laser survey on site. Depending on the complexity of its architecture, the building may require more or less work.
The Villa Majorelle has required a lot of work because it is a very complex architectural work. With its sculptures, its typical Art Nouveau decorations, its ornamental, floral and organic forms, it required no less than 275 scan positions on the site, inside and out.
In order to create a perfect digital copy, the teams mix several techniques: they proceed to the laser capture of the building and its restitution in photogrammetry. Then they assemble these data into a cloud of points. For Villa Majorelle the cloud of points was composed of 40 billion points: the accuracy of the survey was quite exhaustive.
After the on-site survey, the teams proceed to assemble the obtained material: they gather the stations but also carry out topographical calculations to ensure that there is no deviation of the stations.
The Webshare viewer makes it easy to take ribs fast, without requiring additional trips to the site.
Once the building is modeled with the help of the point cloud it gets inserted in Revit to create the digital model.
The BIM objects
The teams of AGP occasionally work with generic objects included in Revit or according to the study book with artifacts found on Polantis.com. This use makes it possible to produce the nomenclatures from which the BEs and the architects will realize their quantity and thus get a more precise idea of the economy of the project.
The particularity of AGP’s work, specialists in existing BIM heritage modeling, consists of designing customized objects from the point cloud.
The importance of not interpreting
The elements on which no information is known are systematically indicated on the model requiring a survey and diagnostic work.
The connection of the networks, to provide an example, will be the object of particular attention: the connections can be interpreted provided that this interpretation is notified on the object through a color code or a comment.
Potential usage of the digital model
Esther Sélo concludes her presentation with a range of possible uses of BIM regarding the existing built heritage.
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TELLIER BRISE-SOLEIL, the specialist in shading systems and external cladding, provides its BIM catalogue for the prescribers.
Environmental concern and appealing design
Combining thermal comfort and natural light, Tellier Brise-Soleil’s sun protection systems made of aluminium permit to optimize energy consumption and reduce blindness phenomena. It is an effective and aesthetic bioclimatic solution designed to protect buildings from high temperatures.
Beyond their functional aspects, these sun protection systems contribute to a nice ambience. With a neat design, they fit aesthetically on all buildings regardless of the architectural style.
With a wide range of profiles and finishings, the product range offers multiple design possibilities.
Customized, independent and responsiveness thanks to BIM
The main objective of the manufacturer’s BIM approach is to offer total autonomy to the prescribers in the design and modeling of their architectural projects. The BIM catalogue of Tellier Brise-Soleil has been modeled by Polantis’ architects and engineers.
The BIM catalogue is composed of 12 BIM objects (Revit, Ifc…):
Simple and intuitive, these parametric objects allow prescribers to create customized sun protection systems within just a few clicks, whatever the applications and dimensions desired. Beyond the 3D representation of the products, all technical information is accessible through a detailed sheet (Building references, Installation and maintenance …).
Visit Polantis.com in order to find the entire range of Tellier Brise-Soleil’s BIM catalogue.
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GEGGUS GmbH’s reputation of excellence
GEGGUS GmbH was established over 70 years ago and is specialized in the manufacturing of entrance matting systems with aluprofile (TOP CLEAN). Today GEGGUS GmbH manufactures a full range of products, for the interior as well as the exterior.
They offer a wide selection of finishing touches (ripped carpet, rubber mats, cassette brush, scraper bar), colours and accessories of 10/17/22/27 and 42mm height. Besides they offer custom-produced designs (special cutting and finishing for frames and mats) in order to respond to the demand of all designers. In addition they offer honeycomb rubber mats (Karo As, Domino), coarse haired rep mat (Master) and ripped carpet (Enter).
The company’s reputation of excellence is based on the high product quality and their constant research for customer satisfaction: GEGGUS GmbH proposes an outstanding cost effectiveness and short delivery time.
Custom-produced BIM objects
GEGGUS GmbH represents their excellent work through BIM objects. The company took the decision to offer their architects the full range of entrance matting systems in CAD and BIM formats (Revit format). Therefore GEGGUS GmbH called on Polantis whose team of architects and engineers knows how to meet the needs of the users of the BIM method.
Easy access to BIM objects
In order to access the available BIM objects of GEGGUS GmbH the architect proceeds on the manufacturer’s web site, product section (accessible here) and makes his joice among the products with the help of a filter. Once a product is selected the indication “demonstrate showpiece” appears and leads you to the product sheet.
If the product is digitally available the link “download” leads you directly to the product page on Polantis.com.
You will find all BIM objects of GEGGUS GmbH on Polantis.com by clicking here.
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