I was trying to do some catching up, and the July Addenda has a very significant change to who can be the CxA.

Dear all, We have a Type III environmental declaration form for a product, verified by a third party (Bauen und Umwelt institute).

When conducting a LCA will the baseline and proposed building have the baseline and proposed energy usage accordingly (as per Minimum Energy Performance calculations) or will both have the same ene

Hi, in the UK we are using a LCA tool called IESVE IMPACT.

Hello, I'm modelling a low-rise data center. According to Appendix G, I should use system 4 (rooftop package heat pump) for reference model.

The building contains 2 below ground basements and 3 office floors above ground, should we add the basement floor area in the total area of the building for the building density calculation??

Greetings, In the project we are modeling, the Proposed design has applied a chiller’s condenser heat recovery without this to be required by the prescriptive requirement (6.5.6.2).

Hi, I have a question concerning the the function of a elevator lobby as a vestibule. Regarding to Standard 90.1, every building entrance that separate cond.

We are pursuing LEED certification for small project in which some offices are converted to open offices, break room and reception area in an existing building.

In calculating compliant roof area to total roof area, is the SF associated with parapets considered roof area?