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Cooling Efficiency of packaged units larger than 60 tons

NC-v4 EAp2: Minimum Energy Performance
posted by Dave Hubka on Feb 18, 2025, 8:02 am

This week I learned that 60-ton packaged units are not provided with an EER.

What is the protocol / equation(s) used to determine the unit’s cooling efficiency in this instance?...

ASHRAE 90.1-2016 & BPF

NC-v4.1 EAp2: Minimum Energy Performance
posted by Charalampos Giannikopoulos on Feb 17, 2025, 10:29 am

The use of the Building Performance Factor (BPF) dramatically enhances the baseline performance of a building by artificially adjusting and reducing the baseline unregulated energy cost. This...

Last reply: John, Feb 18, 2025, 2:33 am

Prescriptive Path or PRM Path to be followed for recommendation of envelope U value/SHGC values during tender design stage

NC-v4.1 EAp2: Minimum Energy Performance
posted by Anurag Ghosh on Feb 14, 2025, 7:13 am

February 14, 2025- 1:49 pm I assume this is the same project you have been asking about in other forums? For a LEED project you should be doing early stage energy modeling to evaluate your options and inform...

Last reply: Anurag Ghosh, Feb 18, 2025, 12:34 am

Major Renovation Project- Spaces out of Scope of Work

NC-v4 EQp1: Minimum indoor air quality performance
posted by Zeynep Cakir on Feb 6, 2023, 3:40 am

Hello everyone,

My question is related to major renovation projects. Are the spaces not undergoing renovation and out of scope of renovation work exempt from the credit requirements?

...

Last reply: Taylor Gawthorp-Cruse, Feb 14, 2025, 3:51 pm

Occupant usage of tenant fixtures is less than 100%

CI-v4 WEp1: Indoor water use reduction
posted by Nadia Azzam on Jan 23, 2025, 1:34 pm

We are working on a tenant fit-out for a specialty group occupying the entire 3rd floor and part of the 1st floor in a LEED-certified building. The office is designed for 110 employees, with most...

Last reply: emily reese moody, Feb 13, 2025, 10:18 pm

Long and short term bike parking for TI project

CI-v4 LTc4: Bicycle facilities
posted by Lisa Adams on Feb 13, 2025, 5:27 pm

For a CI tentant improvement project, the LEED Rating System Variation language states a minium of two short term and two long term bike parking spaces are required. For a tenant in a multi-...

Skylight > 5% of roof area

NC-v4 EAp2: Minimum Energy Performance
posted by Junaid Mujahid on Nov 27, 2024, 8:40 am

If the skylight area is greater than 5% of the...

Last reply: Marcus Sheffer, Feb 13, 2025, 12:34 pm

Baseline Outdoor Air Requirement for Kitchen Exhaust & Supply

NC-v4 EAp2: Minimum Energy Performance
posted by Junaid Mujahid on Feb 13, 2025, 3:51 am

Hi Everyone,

A project I'm modelling has a MAHU supplying 1800 l/s of Outdoor Air to the kitchen area to compensate for the 2000 l/s exhaust from the kitchen ecology unit. I have two...

Autocase inputs slightly different than LEED Outputs

Pilot-Credits INpc113: Informing Design Using Triple Bottom Line Analysis
posted by Jill Kurtz on Aug 7, 2022, 6:05 pm

We use the Autocase tool for this innovation credit and find some of the inputs they require are slightly different than how LEED outputs information. I thought it would be good for anyone else...

Last reply: David Krisa, Feb 12, 2025, 1:26 pm

Flooring with resin coated broadcast quartz

NC-v4 EQc2: Low-emitting materials
posted by Michelle Rosenberger on Feb 12, 2025, 1:20 pm

I have seen several flooring product systems now with resins and coatings that use a broadcast quartz or other inherently non-emitting material as one layer. We have seen flooring emissions...