The C2C certificates are ussually valid for 1.5 or 2 years, some will come to an end before the end of the project and maybe before the products are purchased.

Hello - I was reviewing the Reference Guide addenda items, and there is one for this credit that just does not make sense.  It is regarding the Required Documentation table, page 439 in the RG

Are existing light fixtures required to be included in the calculations for both options?

Hi,

The project is situated in southeast asia and there is no Acca certified contractor. Does it mean we will not get the credit? But we have PCab (certification for contractors) will they accept?

Will I get the credit if I use Pella Windows with Built-in Window Blinds? It shades the opening on the summer solstice and can be open on winter solstice.

I don't understand when we calculated the minimum parking spaces required by code , for example 50, and the 40% reduction from based ratio is 45, how can we provide the parking spaces less tha

Does anyone have experience or insight into achieving this credit in gallery or exhibition spaces?

We are trying to specify ceilings with at least 85% surface reflectance. However, there are areas with metal ceilings that have perforations for acoustical and fire requirements.

Hi, I have some questions about the modeling system on CI.
1.If I have a curtain wall window on the exterior of my building, I still need to use U-value of the faming system?