# How do I categorise flashings in IFC?

**URL:** <https://forums.buildingsmart.org/t/how-do-i-categorise-flashings-in-ifc/1014>\
**Category:** Users\
**Created:** [February 13, 2019, 5:16am UTC](https://forums.buildingsmart.org/t/how-do-i-categorise-flashings-in-ifc/1014 "2019-02-13T05:16:44Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Moult](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.buildingsmart.org/moult/32/196_2.png) [@Moult](https://forums.buildingsmart.org/u/Moult)\
**Post date:** [February 13, 2019, 5:16am UTC](https://forums.buildingsmart.org/t/how-do-i-categorise-flashings-in-ifc/1014/1 "2019-02-13T05:16:44Z")

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I am modeling some flashings (waterproofing flashing at junctions between building elements) and I am wondering what IFC product it is?

Looking at the spec I see " IfcDiscreteAccessoryType" and “IfcCovering” as two potential candidates. I’m not yet sold on either.

Ideas?

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<div class="post-metadata">

**Author:** ![Moult](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.buildingsmart.org/moult/32/196_2.png) [@Moult](https://forums.buildingsmart.org/u/Moult)\
**Post date:** [September 3, 2019, 6:59am UTC](https://forums.buildingsmart.org/t/how-do-i-categorise-flashings-in-ifc/1014/2 "2019-09-03T06:59:03Z")

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Bumping this thread because I still have no idea how to categorise flashing 😉

Note that there are different types of flashings: such as ridge flashings, barge flashings, valley flashings, etc.