Is it allowed to install additional door arrest systems or free-swinging closers to the self-closing doors, so that in case the occupant is able to keep the door open for a short period? This...

Hello everybody
I have a question about the construction fence as a part of the...

Dear all. We are working on a LEED v4 NC campus project in which two (office) buildings pursuing a LEED certification. In the course of constructing the buildings will provided with two...

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...

Dear Sir or Madam,
Smoking must be prohibited within 25 feet of building entries, outdoor air intakes, and operable windows. A designated smoking area must be located at least 25 feet away...

Dear all,

We have mechanically ventilated spaces. For the option 1 we therefore have to comply with the requirement B. interior cross-contamination prevention. To create negative pressure...

For determing the openable wall area (which has to be a minimum of 4% of the net occupiable floor area) should WOCDs (Window Opening Control Devices) be considered? Please explain how to...

Dear LEED community,
we are working on a project in Berlin, Germany. The existing building is a logistics center consisting of a logistics and warehousing facility made up of 3 units (48,...

Does anyone know if there are definitions for the different irrigation types? Especially the differences between the two drip types would be of interested.
Thanks, Jens

Dear all,
I have a question according to meet the composite sound transmission class (STCC) ratings listed in Table 1:
Do we have to meet the...