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Baseline HVAC system modeling

NC-2009 EAp2: Minimum Energy Performance
posted by Ricardo Sá on Aug 30, 2016, 11:34 am


I have a 14 story office building (6 below ground and 8 above). The above grade floors are offices and the below grade floors are mostly parking garages and (for simplification...

Last reply: Ricardo Sá, Aug 30, 2016, 1:20 pm

Taking credit for DCV in car parks

NC-2009 EAp2: Minimum Energy Performance
posted by Ricardo Sá on Aug 11, 2016, 4:50 am

Hello Marcus Sheffer,

Refering to the...

Last reply: Marcus Sheffer, Aug 19, 2016, 12:05 pm

Exterior lighting classification-

CI-2009 EAc1.1: Optimize energy performance - lighting power
posted by Ricardo Sá on Jun 13, 2016, 2:11 pm


I’m currently working on a LEED 2009-CI project applied to a hypermarket and I’m having doubts in classifying some surfaces according to table 9.4.5 of ASHRAE 90.1 2007 (“Lighting...

Last reply: Ricardo Sá, Aug 11, 2016, 5:12 am

Single tenant O&M certification on a multitenant building

NC-v4 MPR2: Must use reasonable LEED boundaries
posted by Ricardo Sá on Apr 28, 2016, 11:09 am

LEED O&M 2009 reference guide stated (page xxii) that "certification applies only to whole buildings" and that "the project of a multitenant building must involve at least 90% of the total...

Last reply: Lawrence Lile, May 26, 2016, 2:34 pm

Transfer Air for IEQp1 achievement

CI-2009 IEQp1: Minimum indoor air quality performance
posted by Ricardo Sá on May 2, 2016, 6:36 am


I'm currently working on a project of a huge supermarket. The building has warehouses and storage rooms.

1_Do these spaces need to be ventilated as per table 6.1 of ASHRAE...

Recycled cork can contribute to achieve MRc6?

NC-2009 MRc6: Rapidly Renewable Materials
posted by Ricardo Sá on Oct 10, 2014, 11:51 am

We're working in a project that use a thermal coating based on cork material. This cork is 100% recycled. Can this material contribute to achieve both credits (MRc4 +MRc6)?

Last reply: Tristan Roberts, Nov 27, 2015, 2:42 pm

Baseline heating set-point when no heating system exists

NC-2009 EAp2: Minimum Energy Performance
posted by Ricardo Sá on Apr 17, 2015, 7:00 am

According to ASHRAE 90.1 (2007) Table G3.1 - 10 c, "where no heating systems exist, HVAC system shall be assumed to be electric". Considering a space that has a cooling system but not a heating...

Last reply: Marcus Sheffer, Apr 17, 2015, 9:45 am

LEED v4 rating systems being translated to Portuguese

General forums
posted by Tristan Roberts on Oct 20, 2014, 12:22 pm

USGBC is translating the LEED v4 rating systems to Chinese, Portuguese, and Spanish, and they passed us an advance copy to get your feedback!
Here are the drafts for the Portuguese...

Determining compliance

NC-2009 SSc6.2: Stormwater design - quality control
posted by Tiago e Silva on Mar 10, 2011, 7:50 am

I’m working on a Project in Portugal, which consists in a 13.400m2 site, with 6000m2 rooftop (harvests rain), 2500m2 green roof, 2735m2 of gardens, 306 m2 of planters and 1840m2 of impermeable...

Last reply: Amy Rider, Mar 29, 2011, 5:07 pm