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Licensed Professional Exemption (LPE)

General forums
posted by Tristan Roberts on May 17, 2010, 3:04 pm

The Licensed Professional Exemption is basically a streamlined documentation path that is available for certain credits, particularly design-oriented credits where a licensed professional such as...

Last reply: Susan Di Giulio, Jun 12, 2021, 5:43 pm

polyisocyanurate roof insulation

NC-v4.1 EQc2: Low-emitting materials
posted by Allen Cornett on Dec 23, 2020, 3:50 pm

Does polyisocyanurate roof insulation on top of a concrete or metal deck need to be included in the documentation of the low-emitting materials insulation category?

Last reply: Catherine Blakemore, Jun 11, 2021, 5:59 pm

Option 2 Strategy E for an Atrium area- No ceiling areas (Open to roof deck above)

NC-v4 EQc6: Interior lighting
posted by John Covello on Jun 11, 2021, 4:48 pm


For Option 2, Strategy E. 

For the Interior Lighting Calculator how would you input ceiling area surface reflectance data for a space that is open to the roof deck? Do you...

Minimum Skylight Fenestration Area

CS-v4.1 EAp2: Minimum Energy Performance
posted by Narguess Kh on Jun 8, 2021, 1:55 pm

I am working on a data center and planning to use Prescriptive provisions of Sections 5 through 10 to comply with energy credit. The data hall is greater than 232 m2 but they are not occupied. I...

Last reply: Marcus Sheffer, Jun 11, 2021, 3:36 pm

Calculation in relation to the basic model

NC-v4.1 EAc2: Optimize Energy Performance
posted by Léanna Chérot on May 31, 2021, 3:55 am

In the context of a project half offices and half factory New construction carried out on 3 floors, the last one will not be occupied, not heated and not ventilated. It will remain...

Last reply: Marcus Sheffer, Jun 11, 2021, 3:27 pm

Lighting Control for Dormitory

NC-v4 EAp2: Minimum Energy Performance
posted by Yuxiang Zhao on Jun 4, 2021, 4:50 am


We use the v4 NC rating system for a school dormitory project. As said in ASHREA 90.1-2010, "lighting within dwelling units" are the exception for Lighting chapter 9 scope. Can I...

Last reply: Marcus Sheffer, Jun 11, 2021, 3:23 pm

Energy Model Points for LEED v4.1 Datacenter Building

Data-Centers-NC-v4.1 EAp2: Minimum Energy Performance
posted by Sam Well on Jun 8, 2021, 9:04 am

Greetings to All,

Hope all are safe.

We are doing the energy model for office building in which electrical energy only used.

We know that, achieving the energy savings under...

Last reply: Marcus Sheffer, Jun 11, 2021, 3:17 pm

November Surprise?

NC-v4.1 MRc5: Construction and demolition waste management
posted by Jonathan Weiss on Nov 24, 2020, 3:41 pm

I am hoping I read this wrong, but the current version of the credit on USGBC.org and the Addendum posting (as of early November) seems to have changed this credit significantly - Option 1 is 1...

Last reply: Joseph Snider, Jun 11, 2021, 1:09 pm

Can we consider the cafe yard as an open space?

NC-v4 SSc3: Open space
posted by Du Pham on Jun 11, 2021, 12:45 pm


I have a question. 

Our project have a cafe space outdoor. Can we consider it as an open space? Can you give me some suggestion? 

Thanks and regard! 

LEED Online Credits not eligible in Innovation in Design Only

NC-v4 RPc1: Regional Priority
posted by Katie Vasbinder on Jun 11, 2021, 12:44 pm

On LEED online the Regional Priority Credits show we are eligible within a
credit threshold (ie. Optimize Energy Performance) but in the Innovation
threshold is says we are not...