Under what circumstances could a nonroof area covered with light gravel be considered as non-hardscape?

This is the first time I've had a project that has both existing and new dirt roads that will not be paved, or covered with gravel, or anything else. I'm not really concerned about the SRI aspect (

Apologies in advance as I know I have read the answer to my question somewhere. I just can't find it. WHEN should the five year shade calculation be performed? i.e time of day, time of year?

My project has a cellar level that extends beyond the building footprint.

We are working on a project where we want to use a fabric parking cover, and the manufacturers do not seem to have the SRI values or equivalent to calculate 29 SRI.

We have a project with a support building with no FTEs, hence, it is not a certifiable building according to the MPRs and we will only be using it to count the materials waste management.

I am working on a project where the exterior space consists of an alley way and an outdoor plaza. The outdoor plaza is on columns under the building volume.

Can exemplary performance be documented by combining Option 1 and Option 2?

Does anybody know the SRI of natural sand?