I have been watching LEED Zero for a while, and have appreciated certain things, but one thing I think is an absolute disaster is their allowance of mainline RECs for claiming Zero Energy and Zero

Good morning, All,

All,

Hello Sustainable Design Leaders!

Here at BuildingGreen we are excited and looking forward to creating a valuable and engaging online summit with you all for 2020!

Our project is working with a wood door manufacturer that has indicated that they no longer use CARB ULEF labeling for their products, but can provide ULEF products that comply with the U.S.

In the v4.1 Calculator, is it necessary to provide cost / surface area inputs for credit categories that are fully compliant?

I assume the Standard must be followed when the User’s Manual contradicts it.

90.1 – 2010, Standard

Hi,

We're now mid-way through Summer Summit season! One of the “good problem to have” challenges we’ve had at recent SDL Summits has been too many great five-minute presentations.

I have a new office building where all space heating is designed to be electric heat pumps with supplemental electric resistance, including the outdoor air makup units using heat pumps.