Question-and-Answer Resource for the Building Energy Modeling Community
Get s tarted with the Help page
Ask Your Question

Missing window construction in "Wind and Stack Open Area" measure

asked 2018-04-14 04:21:54 -0500

Resry gravatar image

updated 2018-04-14 07:31:49 -0500

I am trying to include the abovementioned measure in my simulation. After starting the simulation, it stucks by following error: Error: No windows found in selection matching given construction. This means your model lacks windows or lacks windows with the specified construction.

I defined an operable window construction. But still doesnt work. Whats probably wrong with the window definition?`

Best, Martin

edit retag flag offensive close merge delete

1 Answer

Sort by ยป oldest newest most voted

answered 2018-04-16 16:38:24 -0500

updated 2018-04-16 16:53:14 -0500

I recently updated this measure. Changelog on Github here.

The measure looks through all your fenestration objects, selects ones that match the construction you specify, and then makes an add wind stack object for each one. The issue you are facing is likely that there aren't any windows in your model with the construction you selected in the measure arguments. Make sure that you aren't overriding your window constructions elsewhere in your model; there are many places to specify constructions in OpenStudio. If you go to the spaces -> subsurfaces tab, you can see which construction is being applied to your windows.

edit flag offensive delete link more


To add to this answer, I've noticed I have to manually go to spaces --> subsurfaces, then press save in order to get the measure to recognize the window construction. So even if you have your subsurfaces specified correctly you may have to do this. Took me a while to figure this out so hopefully this helps others in the future who may experience this issue.

Jono gravatar image Jono  ( 2018-12-18 18:36:48 -0500 )edit

is there any way to check the openign area that the meassure is using. My understanding is that the measure takes the fenestration objects than match the construction specified and calculates the area. Then it multiplies that area for the open area fraction schedule (50%).

Can I draw in the same wall two windows. One operable and the other fixed then select windows construction int he measure to add wind and stack open area only to the windows defined as operable?

How i can change the faction of open area (50%) to an other value?


obuchely gravatar image obuchely  ( 2020-03-28 17:08:45 -0500 )edit

@obuchely you could edit the measure to only apply to windows of a certain construction

mdahlhausen gravatar image mdahlhausen  ( 2020-03-30 11:54:14 -0500 )edit

Your Answer

Please start posting anonymously - your entry will be published after you log in or create a new account.

Add Answer


Question Tools


Asked: 2018-04-14 04:21:54 -0500

Seen: 208 times

Last updated: Apr 16 '18