THERM 8.1 Material Format

[Better Building]

Hi all,

I can see the material format for hygrothermal files in the .XML but cannot see a default file for the .CSV, the only file type available for uploading new hygrothermal material data. I would rather upload one product t a time then create my own .XML.

Am i missing something or is the .XML not available. Also, exports are not available either.

Any assistance would be greatly appreciated.

Darren

[Robin Mitchell]

You can import CSV files, without headers, with the number of columns and rows needed to define the different aspects of the library.

Here is an example

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Robin Mitchell

Building Technology and Urban Systems Division
Energy Technologies Area
Lawrence Berkeley National Laboratory

[Speckel Support]

Robin,

 

Sorry, I wasn’t clear.

 

I can see that is available but can all hygrothermal inputs be uploaded at once?

 

I am used to working with .XML files like the attached, and would have assumed a similar function was available for all inputs to be located in a folder or uploaded at once.

 

Regards,

 

Darren O’Dea

Director and Co-Founder

0414 868 058

 

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From: Robin Mitchell <rdmit...@lbl.gov>
Sent: Friday, 21 November 2025 10:23 AM
To: Speckel Support <sup...@speckel.io>
Cc: THERM <lbnl-...@googlegroups.com>
Subject: Re: [LBNL-THERM] THERM 8.1 Material Format

 

You can import CSV files, without headers, with the number of columns and rows needed to define the different aspects of the library.

 

Here is an example

 

[Robin Mitchell]

There is not a way to upload XML-based data at this point. 

However, you can add materials directly to the materials.xml file. 

Robin