In one of our projects, the client is willing to have open spaces with high flexibility. In these open spaces, “boxes in the box” for copy rooms will be created.

I am not quite sure on the wording regarding natural ventilation and the Europe ACP. The online Ref.Guide states "Projects in Europe may use Arbeitsstaettenrichtlinie ASR 5 as a local equivalent to

Art classrooms are considered both in Tab. 6-1 and in Tab. 6-4. If we respect Tab. 6-4, could we avoid the verification of Tab. 6-1 (i.e. could we avoid the outdoor air supply)?

Question about meeting this prereq in Residential Projects - v4 requires one of three types of monitoring for naturally ventilated projects - exhaust airflow, alarm on openings, or CO2 with alarm.

We provide Leed certificate and green building service but how are we developing this process in Turkey?

Can a mechanically conditioned space be naturally ventilated? I mean, is this combination allowed by ASHRAE 62.1-2010 and ASHRAE 55-2010?

Dears, When we have a Naturally Ventilated Space, we can use an alarm to indicate that the openings are close. Someone know if I can use an light alarm? or I must use an sound alarm?

For a Multi-Fam Highrise, the corridors will be heated with a ducted roof-top gas furnace split dx system will be installed.

Referring to the FAQs fan-assisted ventilation in naturally ventilated spaces can be considered as mechanical ventilation.

The new calculator (v2009v4_Minimum IAQ Performance Calculator_v03) from the Resources tab, does not count the ‘Zone Outdoor Airflow’ (column N) and it shows 0,00 no matter what system and values w