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Points for not having Cooling Tower- System 7- is it possible?

CS-v4 WEc3: Cooling tower water use
posted by Konstantina Kalliakoudi on Mar 21, 2023, 9:24 am

Hello to all,

I have project CS which is nonresidential more than 5 Floors ( System 7 of ASHRAE 90.1- appendix G) and there will be NO cooling tower installed.

  1. My project will...

Fixtures in European Projects – What do we do about the pressure given the Flows in Europe

CS-v4 WEc2: Indoor water use reduction
posted by Konstantina Kalliakoudi on Mar 21, 2023, 9:42 am


How do we enter the Design Flow rates for European Project in the “Indoor Water Use reduction Calculator”? The Flow in the data sheet in Europe is given at 300 kPa vs 415 kPa the...

Lights mounted under a photovoltaic canopy

CS-v4 SSc6: Light Pollution Reduction
posted by Samuel Calhoun on Apr 20, 2023, 4:43 pm

Hi. A project I am assessing has a photovoltaic canopy that covers roof parking. Do the lights under this canopy need to be included in the BUG assessment? The engineer has selected indoor, vapor...

Do CO2 Monitoring Code Requirements suffice in lieu of a TSLA for C&S Project?

CS-v4 EQc1: Enhanced indoor air quality strategies
posted by Kristen Magnuson on Apr 21, 2023, 2:32 pm


Does anyone know if a v4 C&S project that is not have any densely occupied spaces in the C&S scope, can use the California Energy Code...

Daylighting for Light Industrial

CS-v4 EQc4: Daylight
posted by Troy Glasner on Jul 11, 2023, 5:33 pm

Hi, I am helping a client, they have a light industrial project that has a workshop in the back area and an office mezzanine. The workshop has a double height area with a skylight and an overhead...

Location of short-term bicycle parkings

CS-v4 LTc6: Bicycle facilities
posted by Marine Petrosyan on Sep 1, 2023, 8:25 am

Hi, All!

The architect has designed a great part of the short-term bicycle parkings inside the building, mostly in the territory of car parkings, which form the underground floors of the...

WaterSense Tool availability?

CS-v4 WEp1: Outdoor water use reduction
posted by Marine Petrosyan on Sep 4, 2023, 6:43 am

TABLE 1. Default Occupancy Numbers

CS-v4 EQp1: Minimum indoor air quality performance
posted by Oscar Martinez on Sep 6, 2023, 12:05 am

Hi, I'm working on a warehouse project in Mexico. The rating system is v4 CS and I have a question in progress.

In the storage area, we are considering the table APPENDIX 2. DEFAULT...

Heat Island Mitigation with Cool Walls

CS-v4 INc1: Innovation
posted by Benjamín Nieto on Sep 13, 2023, 6:46 pm


Im currently working on a industrial project pursuing a LEED BD+C Core and Shell v4 certification. We are attempting the ID Cool Walls credit but have encountered some issues gathering...

Sample transit documentation

CS-v4 LTc5: Access to quality transit
posted by Vanessa Rosado on Sep 22, 2023, 8:07 am


My question is about the example provided "The Frick Collection 1E 70th St, New York" for this credit, which is: there is a note saying that "No one transit mode comprises more than 60...