# Domains **URL:** https://forums.buildingsmart.org/c/rooms/20.md [Latest](https://forums.buildingsmart.org/latest.md) · [Categories](https://forums.buildingsmart.org/categories.md) · [Tags](https://forums.buildingsmart.org/tags.md) --- ## [About the Domains category](https://forums.buildingsmart.org/t/about-the-domains-category/38)
**Author:** [@jwouellette](https://forums.buildingsmart.org/u/jwouellette)\ **Replies:** 0
Our community has created “Domains” where like-minded users, centered around specific industry use cases, where discussions can occur within a specific end use context. --- ## [IfcCurtainWall](https://forums.buildingsmart.org/t/ifccurtainwall/6609)
**Author:** [@pandyapalak](https://forums.buildingsmart.org/u/pandyapalak)\ **Replies:** 1\ **Last updated:** [October 16, 2026, 6:55pm UTC](https://forums.buildingsmart.org/t/ifccurtainwall/6609 "2026-10-16T18:55:45Z")
Hello Everyone, I have a question regarding the IfcCurtainWall. According to the IFC defenition of the Curtain wall. It is an element, which is hung from the edge of the slab and not on the slab. Then, how will you defi… --- ## [Understanding IFC Alignment and Rail - Beginners guide](https://forums.buildingsmart.org/t/understanding-ifc-alignment-and-rail-beginners-guide/4117)
**Author:** [@camontellano](https://forums.buildingsmart.org/u/camontellano)\ **Replies:** 6\ **Last updated:** [May 8, 2026, 9:24pm UTC](https://forums.buildingsmart.org/t/understanding-ifc-alignment-and-rail-beginners-guide/4117 "2026-05-08T21:24:42Z")
Hi all, I’ll be supporting a Colleague in writing her Master Thesis and it talks about programmatically adding railway elements along the alignment. This is kind of a common task in Most proprietary design software. Nev… --- ## [IFC for Road Signage](https://forums.buildingsmart.org/t/ifc-for-road-signage/5687)
**Author:** [@Joel](https://forums.buildingsmart.org/u/Joel)\ **Replies:** 3\ **Last updated:** [October 23, 2024, 3:41pm UTC](https://forums.buildingsmart.org/t/ifc-for-road-signage/5687 "2024-10-23T15:41:49Z")
Hoping this is the correct category for this. I’m looking into the exporting of IFC files for Road Signage and it’s associated posts and footings. So far I’m exporting the sign plate as the IfcEntity: IfcSign. And als… --- ## [Construction Room](https://forums.buildingsmart.org/t/construction-room/3363)
**Author:** [@JonProctor](https://forums.buildingsmart.org/u/JonProctor)\ **Replies:** 2\ **Last updated:** [October 3, 2024, 1:57pm UTC](https://forums.buildingsmart.org/t/construction-room/3363 "2024-10-03T13:57:11Z")
Hello and welcome to the new Construction Room forum. --- ## [Construction Room started to use Forum bbs.](https://forums.buildingsmart.org/t/construction-room-started-to-use-forum-bbs/3455)
**Author:** [@Ken](https://forums.buildingsmart.org/u/Ken)\ **Replies:** 5\ **Last updated:** [February 12, 2024, 4:36pm UTC](https://forums.buildingsmart.org/t/construction-room-started-to-use-forum-bbs/3455 "2024-02-12T16:36:51Z")
buildingSMART International, Construction Room starts to use the forum. If you want to share your questions about Construction BIM and Use cases please post them with category of “Construciton”. I want to facilitate th… --- ## [IfcClassificationReferenced aplied to IfcProject](https://forums.buildingsmart.org/t/ifcclassificationreferenced-aplied-to-ifcproject/4535)
**Author:** [@pilarjimenez](https://forums.buildingsmart.org/u/pilarjimenez)\ **Replies:** 1\ **Last updated:** [December 17, 2022, 6:31pm UTC](https://forums.buildingsmart.org/t/ifcclassificationreferenced-aplied-to-ifcproject/4535 "2022-12-17T18:31:35Z")
Does the IFC 4 or later schema allow applying the IfcClassificationReference entity to abstract entities such as IfcProject, IfcSite, IfcBuilding… etc? Example: From a list of possible BIM uses, declare in the IfcProje… --- ## [Standard for Properties?](https://forums.buildingsmart.org/t/standard-for-properties/4504)
**Author:** [@Mathias](https://forums.buildingsmart.org/u/Mathias)\ **Replies:** 8\ **Last updated:** [December 8, 2022, 8:06am UTC](https://forums.buildingsmart.org/t/standard-for-properties/4504 "2022-12-08T08:06:15Z")
Hello and greetings from Norway :norway: I am looking for information regarding correct and structured properties to include with our products. We make playground equipment placed mostly in the landscape, but we also of… --- ## [Summary of the regulatory room open house (26 January 2022).](https://forums.buildingsmart.org/t/summary-of-the-regulatory-room-open-house-26-january-2022/4081)
**Author:** [@Tamer](https://forums.buildingsmart.org/u/Tamer)\ **Replies:** 2\ **Last updated:** [August 22, 2022, 4:05pm UTC](https://forums.buildingsmart.org/t/summary-of-the-regulatory-room-open-house-26-january-2022/4081 "2022-08-22T16:05:15Z")
The Regulatory Room of buildingSmart International held its second Open House on 26 January 2022. The aim is to share work done by the Room on advancing the practice of automated rule checking in the AEC industry; and to… --- ## [Digitization of the Regulatory Process](https://forums.buildingsmart.org/t/digitization-of-the-regulatory-process/3979)
**Author:** [@Tamer](https://forums.buildingsmart.org/u/Tamer)\ **Replies:** 1\ **Last updated:** [December 8, 2021, 3:13pm UTC](https://forums.buildingsmart.org/t/digitization-of-the-regulatory-process/3979 "2021-12-08T15:13:01Z")
The Regulatory Room of bSI works, mainly, to study, promote and facilitate the automation of code/regulation checking. In our upcoming “Open House” in January 2022, we plan to discuss the latest advances in the digitizat… --- ## [BIM Power and Energy standards workflow](https://forums.buildingsmart.org/t/bim-power-and-energy-standards-workflow/3983)
**Author:** [@PepaR](https://forums.buildingsmart.org/u/PepaR)\ **Replies:** 0\ **Last updated:** [November 18, 2021, 7:16am UTC](https://forums.buildingsmart.org/t/bim-power-and-energy-standards-workflow/3983 "2021-11-18T07:16:01Z")
Hello, do you have some experience with power and energy standards workflow using BIM, please? --- ## [Regulatory Information Requirements](https://forums.buildingsmart.org/t/regulatory-information-requirements/3710)
**Author:** [@sheila.kerailum](https://forums.buildingsmart.org/u/sheila.kerailum)\ **Replies:** 1\ **Last updated:** [September 10, 2021, 7:16am UTC](https://forums.buildingsmart.org/t/regulatory-information-requirements/3710 "2021-09-10T07:16:30Z")
The project was started to address the growing interest worldwide in improving and automating the regulatory compliance process. This project will ensure that the regulatory information requirements, common across many j… --- ## [IfcDoor and IfcWindow : add "ClearHeight" and "ClearWidth" parameters](https://forums.buildingsmart.org/t/ifcdoor-and-ifcwindow-add-clearheight-and-clearwidth-parameters/3863)
**Author:** [@XColl](https://forums.buildingsmart.org/u/XColl)\ **Replies:** 11\ **Last updated:** [September 1, 2021, 10:42am UTC](https://forums.buildingsmart.org/t/ifcdoor-and-ifcwindow-add-clearheight-and-clearwidth-parameters/3863 "2021-09-01T10:42:40Z")
Hi all and hi @TLiebich In some country regulations, there are specific technical rules about minimum free pass dimension for Doors and Windows (for example: fire exit regulations, ventilation regulations, habitability … --- ## [IFC Tunnel Expert Panel: Monday 5th July - 14:00 CEST](https://forums.buildingsmart.org/t/ifc-tunnel-expert-panel-monday-5th-july-14-00-cest/3732)
**Author:** [@InfraRoomAdmin](https://forums.buildingsmart.org/u/InfraRoomAdmin)\ **Replies:** 1\ **Last updated:** [July 5, 2021, 3:10pm UTC](https://forums.buildingsmart.org/t/ifc-tunnel-expert-panel-monday-5th-july-14-00-cest/3732 "2021-07-05T15:10:13Z")
IFC Tunnel part of the next wave of IFC Infrastructure extensions: IFC Tunnel Expert Panel Monday 5th July - 14:00 CEST Part of the next wave of Infrastructure domain projects that seek to extend IFC beyond the upcomi… --- ## [What is the awareness level of public institutions?](https://forums.buildingsmart.org/t/what-is-the-awareness-level-of-public-institutions/2892)
**Author:** [@C.Piette](https://forums.buildingsmart.org/u/C.Piette)\ **Replies:** 1\ **Last updated:** [June 8, 2021, 2:17pm UTC](https://forums.buildingsmart.org/t/what-is-the-awareness-level-of-public-institutions/2892 "2021-06-08T14:17:03Z")
Hello, I try to map what is the level of awareness/maturity of (regulatory) institution in different countries regarding BIM & in particular IFC. Do you know which countries are already imposing IFC standard for public… --- ## [IFC 4.3 Infra Deployment Expert Panel: Jun 23, 2021 02:00 PM CEST](https://forums.buildingsmart.org/t/ifc-4-3-infra-deployment-expert-panel-jun-23-2021-02-00-pm-cest/3709)
**Author:** [@InfraRoomAdmin](https://forums.buildingsmart.org/u/InfraRoomAdmin)\ **Replies:** 0\ **Last updated:** [June 7, 2021, 8:21am UTC](https://forums.buildingsmart.org/t/ifc-4-3-infra-deployment-expert-panel-jun-23-2021-02-00-pm-cest/3709 "2021-06-07T08:21:54Z")
IFC 4.3 Infrastructure extension for Roads, Bridges, Ports & Waterways Infra Deployment Expert Panel Jun 23, 2021 02:00 PM CEST The pioneering effort to extend IFC into the domain of Infrastructure is now nearing comp… --- ## [Infra Room Steering Committee election](https://forums.buildingsmart.org/t/infra-room-steering-committee-election/3574)
**Author:** [@richard.kelly](https://forums.buildingsmart.org/u/richard.kelly)\ **Replies:** 0\ **Last updated:** [April 29, 2021, 1:34pm UTC](https://forums.buildingsmart.org/t/infra-room-steering-committee-election/3574 "2021-04-29T13:34:57Z")
Infra Room Election Results Tiina Perttula and Philip Jackson are re-elected. New appointees are Jurgen Litsch, Roland Moser, Anna Neidenström, Marion Schenkwein and Marek Suchocki and they are going to bring a comple… --- ## [The final draft of the IFC-Tunnel Requirements Analysis Report is now available](https://forums.buildingsmart.org/t/the-final-draft-of-the-ifc-tunnel-requirements-analysis-report-is-now-available/3151)
**Author:** [@InfraRoomAdmin](https://forums.buildingsmart.org/u/InfraRoomAdmin)\ **Replies:** 2\ **Last updated:** [December 4, 2020, 8:56am UTC](https://forums.buildingsmart.org/t/the-final-draft-of-the-ifc-tunnel-requirements-analysis-report-is-now-available/3151 "2020-12-04T08:56:56Z")
The final draft of the IFC-Tunnel Requirements Analysis Report is now available for your review and comment. Please send your feedback to infrastructure@buildingsmart.org Access the final draft report here: https://app.… --- ## [Take the InfraRoom Industry Survey and have your say on the Roadmap](https://forums.buildingsmart.org/t/take-the-infraroom-industry-survey-and-have-your-say-on-the-roadmap/3146)
**Author:** [@InfraRoomAdmin](https://forums.buildingsmart.org/u/InfraRoomAdmin)\ **Replies:** 0\ **Last updated:** [November 24, 2020, 6:00am UTC](https://forums.buildingsmart.org/t/take-the-infraroom-industry-survey-and-have-your-say-on-the-roadmap/3146 "2020-11-24T06:00:52Z")
A message from the buildingSMART InfraRoom Steering Committee Roadmap update and invitation to industry feedback survey The Infrastructure Room has, over the past year or so, been successfully expanding the bSI openBIM … --- ## [BRAINSTORMING – How to increase Institutions engagement in Open BIM](https://forums.buildingsmart.org/t/brainstorming-how-to-increase-institutions-engagement-in-open-bim/2624)
**Author:** [@Francoin](https://forums.buildingsmart.org/u/Francoin)\ **Replies:** 1\ **Last updated:** [April 14, 2020, 9:29am UTC](https://forums.buildingsmart.org/t/brainstorming-how-to-increase-institutions-engagement-in-open-bim/2624 "2020-04-14T09:29:18Z")
We all know that Open BIM standard will improve tremendously the regulatory compliance management, but to boost its adoption we should consider expectations that regulated firms and regulatory bodies have of an effective… --- ## [Do you have information about IFC involvement in COVID-19 related processes in your country?](https://forums.buildingsmart.org/t/do-you-have-information-about-ifc-involvement-in-covid-19-related-processes-in-your-country/2606)
**Author:** [@Francoin](https://forums.buildingsmart.org/u/Francoin)\ **Replies:** 1\ **Last updated:** [April 13, 2020, 11:49am UTC](https://forums.buildingsmart.org/t/do-you-have-information-about-ifc-involvement-in-covid-19-related-processes-in-your-country/2606 "2020-04-13T11:49:15Z")
As COVID19 crisis is spreading institutions are consdering different solutions to support the “new reality” related to infection mitigation. Italy, where i live, would map “safer areas” to open to activities first, and … --- ## [bSI Technical Roadmap presentation to the IRSC](https://forums.buildingsmart.org/t/bsi-technical-roadmap-presentation-to-the-irsc/2518)
**Author:** [@InfraRoomAdmin](https://forums.buildingsmart.org/u/InfraRoomAdmin)\ **Replies:** 0\ **Last updated:** [March 18, 2020, 2:05pm UTC](https://forums.buildingsmart.org/t/bsi-technical-roadmap-presentation-to-the-irsc/2518 "2020-03-18T14:05:13Z")
Dear InfraRoom members, Léon van Berlo recently gave a presentation to the Infraroom Steering committee regarding the buildingSMART technical roadmap. The recording and slides are now available to view using the link b… --- ## [POSTPONED / Virtual Workshop 3: IFC Infrastructure Extensions: Software vendor implementation/test and validation process](https://forums.buildingsmart.org/t/postponed-virtual-workshop-3-ifc-infrastructure-extensions-software-vendor-implementation-test-and-validation-process/2500)
**Author:** [@InfraRoomAdmin](https://forums.buildingsmart.org/u/InfraRoomAdmin)\ **Replies:** 0\ **Last updated:** [March 13, 2020, 3:22pm UTC](https://forums.buildingsmart.org/t/postponed-virtual-workshop-3-ifc-infrastructure-extensions-software-vendor-implementation-test-and-validation-process/2500 "2020-03-13T15:22:55Z")
\*\* update 2020.03.16 THIS WORKSHOP HAS BEEN POSTPONED, A NEW DATE WILL BE ANNOUNCED SOON. \*\* IFC Infrastructure Extensions| | — | — | Virtual Workshop 3: Software vendor implementation/test and validation process… --- ## [POSTPONED / Virtual Workshop 4: IFC Infrastructure Extensions: Implementation challenges and test cases](https://forums.buildingsmart.org/t/postponed-virtual-workshop-4-ifc-infrastructure-extensions-implementation-challenges-and-test-cases/2501)
**Author:** [@InfraRoomAdmin](https://forums.buildingsmart.org/u/InfraRoomAdmin)\ **Replies:** 0\ **Last updated:** [March 13, 2020, 3:27pm UTC](https://forums.buildingsmart.org/t/postponed-virtual-workshop-4-ifc-infrastructure-extensions-implementation-challenges-and-test-cases/2501 "2020-03-13T15:27:08Z")
\*\* update 2020.03.16 THIS WORKSHOP HAS BEEN POSTPONED, A NEW DATE WILL BE ANNOUNCED SOON. \*\* IFC Infrastructure Extensions| |—|—| Virtual Workshop 4: Implementation challenges and test cases| This workshop will … --- ## [March 23 / Virtual Workshop 2: IFC Infrastructure Extensions: Deployment Project Planning](https://forums.buildingsmart.org/t/march-23-virtual-workshop-2-ifc-infrastructure-extensions-deployment-project-planning/2499)
**Author:** [@InfraRoomAdmin](https://forums.buildingsmart.org/u/InfraRoomAdmin)\ **Replies:** 0\ **Last updated:** [March 13, 2020, 3:15pm UTC](https://forums.buildingsmart.org/t/march-23-virtual-workshop-2-ifc-infrastructure-extensions-deployment-project-planning/2499 "2020-03-13T15:15:51Z")
IFC Infrastructure Extensions Virtual Workshop 2: Deployment Project Planning This working session will be focused on the overall structure and organisation of the deployment work, considering how the program … --- ## [March 23 / Virtual Workshop 1: IFC Infrastructure Extensions: Project Update and Context](https://forums.buildingsmart.org/t/march-23-virtual-workshop-1-ifc-infrastructure-extensions-project-update-and-context/2498)
**Author:** [@InfraRoomAdmin](https://forums.buildingsmart.org/u/InfraRoomAdmin)\ **Replies:** 0\ **Last updated:** [March 13, 2020, 3:09pm UTC](https://forums.buildingsmart.org/t/march-23-virtual-workshop-1-ifc-infrastructure-extensions-project-update-and-context/2498 "2020-03-13T15:09:15Z")
IFC Infrastructure Extensions Workshop 1: Project Update and Context Targeted at the general community within the InfraRoom and Railway Rooms. The purpose of this workshop is to provide a standalone update des… --- ## [ProvisionForVoid](https://forums.buildingsmart.org/t/provisionforvoid/1279)
**Author:** [@agron](https://forums.buildingsmart.org/u/agron)\ **Replies:** 3\ **Last updated:** [August 29, 2019, 8:24am UTC](https://forums.buildingsmart.org/t/provisionforvoid/1279 "2019-08-29T08:24:50Z")
While attending the bsI in Düsseldorf, there was a presentation about the IfcProvisionVoids. A very interesting subject which I would like to give feedback if needed. We have a real project where our team has successful… --- ## [Pset on Alignment2DSegment](https://forums.buildingsmart.org/t/pset-on-alignment2dsegment/1544)
**Author:** [@kevin.nahaboo](https://forums.buildingsmart.org/u/kevin.nahaboo)\ **Replies:** 5\ **Last updated:** [July 22, 2019, 3:50pm UTC](https://forums.buildingsmart.org/t/pset-on-alignment2dsegment/1544 "2019-07-22T15:50:08Z")
Hello everyone, Customers would like to add Pset on Alignment2DSegment (e.g. Max speed, width, number of lanes…). For my understanding it is not possible. Pset can be added only on the Alignment object. Then, is this … --- ## [Market data about investments into BIM software](https://forums.buildingsmart.org/t/market-data-about-investments-into-bim-software/1417)
**Author:** [@JonasG](https://forums.buildingsmart.org/u/JonasG)\ **Replies:** 4\ **Last updated:** [May 27, 2019, 12:44pm UTC](https://forums.buildingsmart.org/t/market-data-about-investments-into-bim-software/1417 "2019-05-27T12:44:59Z")
Hello, for quite some time I’ve been trying to search some information about how actively companies around the world are investing into BIM related software. Being more specific how active are civil engineering constr… --- ## [Regulatory Room = Expectations Room](https://forums.buildingsmart.org/t/regulatory-room-expectations-room/1345)
**Author:** [@nn1](https://forums.buildingsmart.org/u/nn1)\ **Replies:** 1\ **Last updated:** [April 30, 2019, 9:33am UTC](https://forums.buildingsmart.org/t/regulatory-room-expectations-room/1345 "2019-04-30T09:33:30Z")
In Dusseldorf, the regulatory Room realized that our scope is ‘Expectations’, including (social/governmental) regulations, (economic/client) requirements and (environmental/third-party) recommendations. So we are on the… [Next page](https://forums.buildingsmart.org/c/rooms/20.md?page=1)