Log in
Forum » South Africa

2019 GreenTag Product Health Declaration (PhD)

EBOM-v4 EQp3: Green Cleaning Policy
posted by Jutta Berns on Jul 28, 2020, 3:44 am

I came across a 2019 press release by Global GreenTag advising that the Global GreenTag PhD, Materials Transparency Certification Program is as of 2019 recognised by LEED and USGBC. Please can...

Bench marking for Option 2.

EBOM-v4 WEp1: Indoor water use reduction
posted by Tiffany de Klerk on Apr 12, 2018, 2:53 am

Hi, I am quite confused as to how to calculate compliance for Option 2 Metered Water Use. We have the consumption data for 12 months for a building however the calculator is only for Option 1....

Last reply: Shakir Ismail, Jul 4, 2018, 3:18 pm

Flush Out for "During Occupancy" Case of a Major Renovation proj

NC-v4 EQc4: Indoor air quality assessment
posted by Shabari Shaily Gerber on Sep 19, 2016, 9:15 am

Our project is an office building undergoing major renovation. The building will remain operational while the renovation is ongoing. The building occupancy will be phased to move the employees...

Last reply: Shabari Shaily Gerber, Apr 24, 2018, 5:14 am

ASHRAE 90.1:2010- Manual or Partial Auto to 50%

NC-v4 EAp2: Minimum Energy Performance
posted by André Harms on Sep 11, 2017, 10:47 am

The requirement states that “Any automatic control device required … shall either be manual on or shall be controlled to automatically turn the lighting on to not more than 50% power”


Last reply: Marcus Sheffer, Sep 12, 2017, 11:53 am

Practical implementation of ASHRAE mandatory lighting controls

NC-v4 EAp2: Minimum Energy Performance
posted by André Harms on Aug 29, 2017, 11:22 am

As we are outside of the USA, ASHRAE 90.1:2010 is a new requirement that came with v4 and our designers have no experience in interpreting and applying the mandatory requirements.

Can you...

Motor efficiency in 50Hz countries

NC-v4 EAp2: Minimum Energy Performance
posted by André Harms on Feb 21, 2017, 8:13 am

In response to the ASHRAE 90.1:2007 mandatory requirements for the efficiency of 60Hz motors, some had used the European IE2 standard for 50Hz motors and demonstrated equivalency. The ASHRAE 90....

Last reply: Marcus Sheffer, Feb 21, 2017, 8:44 am

Vestibules- CIR 10426- Interpretation

NC-2009 EAp2: Minimum Energy Performance
posted by André Harms on Jul 1, 2016, 9:25 am


Last reply: Marcus Sheffer, Jul 1, 2016, 9:46 am

Commissioning required for a CHP?

NC-2009 EAp1: Fundamental Commissioning of Building Energy Systems
posted by André Harms on Jun 8, 2016, 10:02 am

One of our factory projects is planning on installing a...

Last reply: Scott Bowman, Jun 10, 2016, 11:37 am

Car wash bay

NC-2009 WEp1: Water Use Reduction
posted by Marni Punt on Mar 18, 2015, 10:36 am

Hi, I am working on an office building and the team is considering to include a car wash...

Last reply: Geoffrey Katz, May 12, 2016, 9:34 pm

Natural Ventilation

CI-2009 EAc1.3: Optimize energy performance - HVAC
posted by Chilufya Lombe on Jan 21, 2016, 5:46 am

Good day, we have a project that is naturally ventilated. ASHRAE 90.1 2007 states that the energy cost budget method cannot be used for designs with no mechanical systems. We have all the...

Last reply: Marcus Sheffer, Apr 25, 2016, 12:07 pm