LZ3 Façade lighting exemption

As long as the façade lighting is controlled separately and you scheduled them to turn off at the designated times, Yes, they are exempt from the uplight an trespass requirements of this credit. You will still need to count this wattage in the Energy Model.

Not all lighting installed on the façade, but all lighting for the façade.   There's not really a firm definition of what a façade light is.  "lighting solely for façade" sound fair.  Most façade lights don't contain 100% of their light within the façade surface.  Most of the light, yes, but 100% is difficult. It is a huge advantage.  This credit is much easier than previous versions.

Hi Bill, could you please tell me where in the Reference guide can I find the information confirming that lighting for facade is exempt from all calculations for the purpose of Ligth Pollution Reduction credit? I would be grateful for your response.

My copy says page 210. Exemptions from Uplight and Light Trespass Requirements
The following exterior lighting is exempt from the requirements, provided it is controlled separately from the
nonexempt lighting:
 · specialized signal, directional, and marker lighting for transportation;
 · lighting that is used solely for façade and landscape lighting in MLO lighting zones 3 and 4, and is automatically turned off from midnight until 6 a.m.;
· lighting for theatrical purposes for stage, flm, and video performances;
 · government-mandated roadway lighting;
 · hospital emergency departments, including associated helipads;
 · lighting for the national fag in MLO lighting zones 2, 3, or 4; and
 · internally illuminated signage.

Do exemptions  include night security along park sidewalks or inside park past midnight as long as separately controlled and/or use of motion detectors. Project is in MLO 3.  

Security lighting is not exempt.  Motion detectors are not relevant. Install them if you want, but they won't help with the credit. Try to light the sidewalks in a way that complies with the credit.

Thank you.  Therefore, as long as night lighting complies with either BUG Option 1 or Calculations Option 2, then lights can stay on past midnight?  Concern is security and safety lighting.  Thanks  

As long as the lighting complies with either Option 1 or Option 2, for both uplight and light trespass; and the whole site lighting wattage is below the maximum, then you're good.

Excellent, Thanks!  Happy Holidays!

As the LEED AP BD+C manager for our project can I share the LEED v4 Reference Guide credit sections with the appropriate team members so they see the Credit requirements and documentation guide?  Architect, landscape, lighting, MEP, etc.?    

This is a more general question and not Credit specific.  Others might be able to answer it better.  My own searching found this text that seems to restrict what you want to do.

Copyright 2013 by the US Green Building Council.  All rights reserved. The US Green Building Council, Inc. (USGBC) devoted significant time and resources to create this LEED Reference Guide for Building Design and Construction, 2013 Edition. USGBC authorizes individual use of the Reference Guide. In exchange for this authorization, the user agrees:
3. not to reproduce, display, or distribute the Reference Guide in anyway for any public or commercial purpose, including displaying on a website or in a networked environment.

... THE USER OF THE REFERENCE GUIDE MAY NOT ALTER, REDISTRIBUTE, UPLOAD OR PUBLISH THIS REFERENCE GUIDE IN WHOLE OR IN PART, AND HAS NO RIGHT TO LEND OR SELL THE DOWNLOAD OR COPIES OF THE DOWNLOAD TO OTHER PERSONS.

SS c2: Site Development- Protect or Restore Habitat:  does a Dog Park area comply if vegetated with native or adaptive species? SS c3: Open Space - does a Dog Park qualify as Open Space; and if vegetated with native or adaptive species comply with 25% required vegetated area? Thank you.

Dog parks are intended to encourage human interaction while monitoring and/or playing/running with pets. These parks can also include trees, bushes, natural landscapes species, nests for birds, encourage biodiversity, and have ponds or streams. Thank you.

Try posting these questions on the SS c2 and SS c3 pages.  I'm much better at lighting related questions.

For a project I'm working on, our lighting designer would like to have aesthetic lighting beneath our roof-top solar canopy.  The purpose is just like that of facade lighting, so would it be exempt also? Thanks.

I tend to view facades as the vertical portion of the building.  How were you intending to measure the wattage allowance for this lighting? The roof and the solar canopy on the roof are not part of the building's facade.  This lighting would not be part of the facade lighting exemption.

Hi all,   If it is a road light inside project site boundary, can we understand this as government mandated roadway lighting?   Thanks