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 gros

We are certifing a project with two buildings, the first is an offices, the second is a warehouses to rent in Spain. The question is for the warehouse, this warehouse is not conditioned and the spa

Can the pressure drop adjustment (e.g. for fully ducted return or for particulate filtration MERV) be applied to System 1?

My question is regarding to operating hours of the building and the Building Operating Plan (BOP).

Shall the mandatory efficiency of section 6.4 (Tables 6.8.1) be verified also for a chiller that works as backup system (the chilled water is provided in normal conditions by district cooling)? Be

Hi, we have a project with large waiting rooms: are there specific values for "Reverberation time requirements", as there are not similar room type in the table 2 of reference guide? Thanks

Good morning, We have a wood stair (wooden steps covered with another wood species) that is manufactured by the millwork contractor. The scale is a custom made design.

Is French A+ VOC certification accepted by EQ credit 4.3 compliance?

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

Hello! I am constructing a building model which spaces are half offices, half laboratories. The HVAC system chosen is system 5 (packaged VAV with reheat) for all building, since it is considered a