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Natural Ventilation

CI-2009 EAc1.3: Optimize energy performance - HVAC
posted by Chilufya Lombe on Jan 21, 2016, 5:46 am

Good day, we have a project that is naturally ventilated. ASHRAE 90.1 2007 states that the energy cost budget method cannot be used for designs with no mechanical systems. We have all the...

Last reply: Marcus Sheffer, Apr 25, 2016, 12:07 pm

Surrounding density and Diverse Uses

NC-v4 LTc4: Surrounding density and diverse uses
posted by Tim Bell on Sep 22, 2014, 7:11 am

I am currently working on a major project in South Africa that will provide diverse uses to the building occupants only as the site is fully enclosed for security reasons. The credit states that...

Last reply: Tristan Roberts, Mar 10, 2016, 10:48 am

Cold rooms

NC-2009 IEQp1: Minimum indoor air quality performance
posted by Jutta Berns on Jul 20, 2015, 9:08 am

Good morning,

We have a project that has two cold rooms at -17 and 0 degrees Fahrenheit. These rooms are temporary storage locations of perishable product.
They will be regularly...

Last reply: Michael Ozenich, Feb 22, 2016, 4:10 pm

Insulation of Piping Cast into Concrete

NC-2009 EAp2: Minimum Energy Performance
posted by André Harms on Nov 6, 2015, 5:36 am

We are working on a project where a significant amount of the domestic hot water ring feed piping will be cast into the concrete walls, and the designer is querying if these pipes will need to be...

Last reply: Marcus Sheffer, Nov 6, 2015, 9:46 am

Engineered natural ventilation system

NC-2009 IEQp1: Minimum indoor air quality performance
posted by Jutta Berns on Oct 9, 2015, 5:42 am

Hi all

We have three Warehouse's that use 'turbo ventilators' (wind driven extraction fans) and not a pure mechanical system. The warehouses also do not have enough enough openings to meet...

Last reply: Jutta Berns, Oct 27, 2015, 4:57 am

Public Restrooms Definition (ASHRAE 90.1)

NC-2009 EAp2: Minimum Energy Performance
posted by André Harms on Sep 14, 2015, 7:35 am

in the forum. Sounds to me like you will need to meet this mandatory provision and install mixing valves or lower the temperature at the source. Log in or register to post comments ...

Last reply: Marcus Sheffer, Oct 1, 2015, 12:17 pm

Atrium entrances

NC-2009 EAp2: Minimum Energy Performance
posted by Chilufya Lombe on Mar 5, 2015, 5:21 am

Hi, we have a large, naturally ventilated atrium in the middle of our building. All entrances to the building are via this enclosed atrium. My understanding is that the vestibule requirement is...

Last reply: Marcus Sheffer, May 29, 2015, 10:25 am

Liquid hand soaps/body wash

EBOM-2009 IEQc3.3: Green cleaning - purchase of sustainable cleaning products and materials
posted by Jutta Berns on Feb 17, 2015, 6:33 am

We have project that is using a liquid body wash that is technically a liquid hand soap too (purchased as both but in different packaging). If the product meets one of the requirements of the...

Last reply: Barry Giles, Apr 22, 2015, 11:15 am

Basement lobbies

NC-2009 IEQp1: Minimum indoor air quality performance
posted by Marni Punt on Apr 14, 2015, 4:48 am

We have a project with 3 lobbies located in basement parking. The lobbies are not regularly occupied spaces, but are circulation spaces connecting to the main reception and lobby on the Ground...

Last reply: Marni Punt, Apr 20, 2015, 8:11 am

ASHRAE 90.1-2007: 6.4.3.4.2 building height exemption

CI-2009 EAp2: Minimum Energy Performance
posted by André Harms on Mar 25, 2015, 1:10 pm

The client of an commercial interiors project location wants to avoid the use of motorized dampers where possible. The project extends over only the third (top) floor and a section of the first...

Last reply: Marcus Sheffer, Apr 14, 2015, 10:53 am