Daylight calculations for office spaces with tenants

I would establish tenant guidelines that dictate appropriate layout designs based on the amount of daylight. Your initial analysis shows you the daylight levels. So based on this, i would establish areas that need to be open office and those that could be enclosed. I would also outline areas that would not be regularly occupied. I think that method has merit because of the use of daylight analysis to help guide the tenant guidelines. This way, no matter who the tenant is, they take advantage of the daylight available. If anything, it is good practice to show potential tenants and the owner that the guidelines will help in energy reductions and provide a healthier working environment.

You will not be able to use the prescriptive path because of the double facade. Simulations or measurements will be your only means to demonstrate credit compliance. I don;t think that your methodology is a bad idea, but because of this being CS your going to have to show compliance without the fit out. I haven;t read any CIRs for CS to see if the methodology of establishing tenant guidelines to dictate how the floor area will be fit out because of daylight levels. I would be hard press to say that if you submitted this methodology that it would be earned because of the credit language. You could send an inquiry to GBCI to see if this would be accepted but i'm think that it may not, even though it is commendable and is trying to meet the intent of the credit.

Mathilda and Todd, It was my understanding that we are supposed to create a sample tenant fit out in CS and do the calculations with those. I thought this was the same with the energy modeling credits. Maybe I'm thinking of v2.2? Todd, can you quote where you heard that it has to be done without the fit out? I am not certain either way, but it seems to make more sense to me to do a sample design. And if you already have some tenants I would think you could use their plans as sample plans.

In EQc 8.2 it requires that a tenant fit out be used in the views calculations. There is nothing in the 8.1 language, unless they added that in the erratta that i missed.

So there is nothing that you know of that says that it CAN'T be done with a sample tenant fit out? Just another example of credit language ambiguity and discontinuity between credits?