Question-and-Answer Resource for the Building Energy Modeling Community
Get started with the Help page
Ask Your Question
2

Parametric Analysis Tool - Set Roof U Value.

asked 2021-03-02 13:14:57 -0500

TheEnergyTutor's avatar

updated 2021-04-07 13:15:00 -0500

PAT doesn't output any results. Does anyone notice what I did wrong? It's a pretty simple process to set this up so I don't know why it doesn't work.

image description

image description

image description

image description

I used the change roof insulation by percentage and it works fine. Is there something wrong with this specific measure?

edit retag flag offensive close merge delete

Comments

I have not used this measure (it was written by Xcel) but looking at the fist screenshot it takes in as an argument a construction in the model to change. If you want to use this specific measure I would see if selecting a roof construction resolves the error you are seeing.

David Goldwasser's avatar David Goldwasser  ( 2021-03-02 16:32:48 -0500 )edit

Maybe this brings light to a need for better measure documentation? I thought parameters were optional and also I wouldn't know what to put there since it isn't a selector box. The roof construction name in Open Studio? Is an R-30 fiberglass roof significantly different than a R-30 cellulose roof?

TheEnergyTutor's avatar TheEnergyTutor  ( 2021-03-15 14:51:27 -0500 )edit

1 Answer

Sort by ยป oldest newest most voted
0

answered 2021-06-09 11:18:09 -0500

OH.AME2021's avatar

I spent a good amount in trial and error with this measure in OS and PAT. You will need to pick a specific Construction corresponding to a Roof surface. You will have to make sure this construction includes an Insulation layer (i.e. No Mass Material) in your Construction definition.

edit flag offensive delete link more

Your Answer

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

Add Answer

Training Workshops

Careers

Question Tools

1 follower

Stats

Asked: 2021-03-02 13:14:57 -0500

Seen: 120 times

Last updated: Mar 02 '21