Green Star Buildings (GSB) Templates

  • Dear eTool

    there are several Green Star reference templates available in the library however they only include those typical for high-rise buildings. Are eTool in process of creating templates for other reference case building types?

    A number of GSB templates (especially the concrete templates) have been set to default quantities of 140m3? Curious as to why these are set to 140m3 instead of 1m3? Is there a reason for this?
    If default quantity is 140m3, wouldn’t this multiply the GWP emissions and potentially influence the overall results?

    When using these GSB templates, should we be dividing the quantity by 140?

    If we clone and modify the eTool GSB templates, should we set the same default quantities, e.g. 140m3

    Hi Max,

    I’m not eTool, but another user, trying to come to grips with this business of quantities.
    It looks to me like the template creator has used 140m3 as a convenience, since that is the hourly output rate for the concrete pump. The resulting GWP output of the Library Template Qty is essentially for one hour of pumping.

    I have just now tried cloning a GSB template, then pulling it in (as-is, no changes) to the Design, and in the process setting the Design Template Qty figure to 495m3 (a value different than the LTQ of 140).

    I found that inside the template (in my design) it scales and adjusts all of its elements’ quantities, relative to 495/140.
    So as far as I can tell, there is no explicit requirement to do any adjustments manually.

    I then also tried out adjusting the LTQ of my cloned template, and here I came unstuck.
    It appears to be the case that adjusting the LTQ has no effect on the quantities generated by the elements within it.
    There appears to be no link between the LTQ and the material quantity of the Elements it contains. This feels awkward, as it requires a user to manually adjust their elemental quantities if they want to deliver a template with a different LTQ.

    Would be good to have this confirmed.

    Hi Max and Anthony,

    Thank you for jumping in to help Max with his query, Anthony! You’re right about the LTQ not being an issue when you’re adding the template into your design. eTool automatically scales the material quantities in the template accordingly.

    However, as you’ve pointed it out, this doesn’t work the other way where the LTQ scales the material inputs within the template library. This is intentionally designed this way so that the template can be whatever ratio/scale that you wish to create and it’s not fixed until you add the template into your Design.

    Another thing to note is that after you’ve added the template to your design, you can ‘unlock’ the template within your design to model further edits/adjustments to the template. If you edit the material quantities within the template, it will


    automatically scale the rest of the materials within the template nor the master template quantity accordingly. (i.e. If the Template quantity is 10m3 of concrete, when you change the actual material input IN the template to 15m3 of concrete, the Template quantity remains as 10m3).

    However, if you change the master template quantity within your Design (not the Library) to 15m3, eTool will automatically scale all the material/assembly/nested template inputs within that template accordingly.

    I hope that answers your questions!

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