I am curious about how consulting firms (or individuals) account for the GWP of fire-proofing in structural steel framing options. Some spray-fire proofing materials are cement-based and I would think the GWP impact is not insignificant. Yet it appears to often be overlooked.
I know Tally offers the option to include it somehow although it is not entirely clear to me how the number is calculated or which EPD(s) is being used.
What about other tools?
Or what if you just have a bill of materials (no revit model) and just want to have a ballpark number during Concept?
I typically include fireproofing on all structural steel to start, as a conservative estimate, and then adjust the material or remove it if necessary. I have used Tally for this. In Tally you can apply the material (cementitious or paint fireproofing) by the surface area of the modeled element, or by length and then picking the structural steel shape from a drop-down list which has all the surface area info for typical steel shapes. Tally uses default typical thickness of the cemenetitious or paint material (it’s different for each). Tally’s data is based on custom models using GaBi background data, but there are some EPDs available out there as well (outside of Tally). Here is Tally’s description of the cementitious material (you get this info when you save a project report).
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