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Green roof- no irrigation system but manual watering during hot summer months- relevant?

NC-v4 WEp1: Outdoor water use reduction
posted by Benjamin Weise on Feb 27, 2019, 2:12 am


the project I'm working on is a zero lot project with green roofs. There will be no irrigation systems in place but during hot summer months, the green roofs will need to be watered...

Last reply: Benjamin Weise, Mar 6, 2019, 3:29 am

Permanently installed drip irrigation system

CS-2009 WEc1: Water Efficient Landscaping
posted by Andreas Hintz on Feb 22, 2019, 9:01 am

In accordance with the requirements of this credit, the project team has developed and will implement a water-efficient landscape stategy. The project is aiming for Option 2, No...

Last reply: Tristan Roberts, Feb 22, 2019, 10:03 am

Sewage treatment plant used as alternative water source

NC-v4 WEc2: Indoor water use reduction
posted by Stephan Zweig on Feb 13, 2019, 7:15 am

Hello to all,

My building uses water for the toilets and for the irrigation from a municipally sewage treatment plan with biological treatment.

Does this source count as...

Last reply: emily reese moody, Feb 18, 2019, 2:16 pm

Sound transmission- STC Rating- Specify

NC-v4 EQc9: Acoustic performance
posted by Stephan Zweig on Feb 14, 2019, 5:38 am

Hello Leed User community,

I am looking at the acoustic performance tool for LEED v4.

At the table for Sound transmission...

LEED CS 2009 SSc4.3- Option 1 Preferred Parking

CS-2009 SSc4.3: Alternative transportation - low-emitting and fuel-efficient vehicles
posted by Kay Rix on Feb 8, 2019, 9:42 am

Dear all,

our LEED v3 Core & Shell project is  a mixed use project with retail and hotel part. The building is a part of a bigger shopping mall and business complex. The parking garage...

Last reply: Allison Smith, Feb 8, 2019, 10:48 am

Detaining the rainwater runoff-an accepted solution?

NC-v4 SSc4: Rainwater management
posted by Florian Schmidtchen on Dec 8, 2016, 6:13 am

Dear all,
In our project we are planning to follow option 1 path 2. Therefor we provide underground-trench systems and a technical ditch on our project site, which gets inserted creatively...

Last reply: Nash Emrich, Jan 15, 2019, 10:07 am

final fit-out on tenants request-> designing provisions for negative pressure difficult

NC-v4 EQc1: Enhanced indoor air quality strategies
posted by Mark Kumar Bose on Jun 3, 2018, 6:12 pm


how do deal with the fact that often the final office floor plans will be fixed later on tenant request so that the technical provisions (negative pressure, etc.) for copy rooms can...

Last reply: Mark Kumar Bose, Jan 14, 2019, 2:56 pm

Green electricity

CS-v4 EAc7: Green power and carbon offsets
posted by Guillaume Rose on Jan 8, 2019, 5:12 am


I work on a 100% electric project.

The owner will subscribe to a 3 year contract with a company that provide a 100% green electricity. On this contract it's specified it will...

Last reply: Marcus Sheffer, Jan 8, 2019, 10:58 am

Automatic Receptacle Control

NC-v4 EAp2: Minimum Energy Performance
posted by Jan Hesse on Aug 7, 2015, 6:36 am

ASHRAE 90.1-2010 8.4.2 states, that 50% of all 125 volt 15- and 20-Ampere receptacle outlets in private offcies, open offices and computer classrooms shall be automatically switched off when the...

Last reply: Marcus Sheffer, Dec 18, 2018, 3:08 pm

option 1: No irrigation and rainwater

CS-v4 WEc1: Outdoor water use reduction
posted by Guillaume Rose on Dec 11, 2018, 9:57 am


I would like to know if i can get the points of "option 1 : no irrigation required" if i have no irrigation system on my landscape area but, i use the stored rainwater to water the...

Last reply: David Hubka, Dec 11, 2018, 10:48 pm