Our high rise residential project currently has: Grates 3\'-0" wide in the direction of travel outside of the ground floor entrances Structured parking with a dedicated (not combined with return air) exhaust system. Maintenance room to house chemicals with walls to deck, closers on both leaves of a pair of doors, as well as a dedicated (not combined with return air) exhaust system exhausting into the structured parking. Pool equipment room to house chemicals with walls to concrete mechanical platform above to access exhaust fans for the structured parking, and closers on both leaves of a pair of doors. MERV 13 filter to be installed prior to occupancy on HVAC units serving regularly occupied spaces. The following are additions/modification or questions regarding EQc5 requirements: 3\'-0" wide in the direction of travel roll-out mats (2 year min maintenance by contracted service organization) are to be placed inside the building at the areas of the 3\'-0" wide in the direction of travel grates at the ground floor entrances for a 6\'-0" total permanent entryway system. Or is a 6\'-0" wide in the direction of travel mat inside required? Roll-out mats (2 year min maintenance by contracted service organization) to be placed at all doors from structured parking to elevator lobbies, and from the pool deck to the elevator lobby. 6\'-0" wide in the direction of travel mat will be installed where the 6\'-0" does not encroach on vehicle circulation. A 3\'-0" wide in the direction of travel mat will be installed outside and inside the elevator lobby where vehicle circulation is within the 6\'-0". Or is a 6\'-0" wide in the direction of travel mat inside the elevator lobby a better solution? The custodian must pass through the maintenance room to access the custodian office and custodian toilet room. Do the doors to the custodian office and toilet room require closers? The pool equipment room with have a dedicated (not combined with return air) exhaust system exhausting into the structured parking will be installed in it. Will the project as designed along with the proposed additions/modification meet the requirements of EQc5?
Can a 3\'0 (in the direction of travel) grate or mat on the outside of all regularly used entry points be combined with a 3\'0 (in the direction of travel) walk-off mat on the interior to meet the required 6\'0 minimum entryway system? Yes, grates and walk-off mats combined are likely to provide superior dirt entrapment than a walk-off mat alone. Please bear in mind that 6\'0 in the direction of travel is the minimum length to meet credit requirements. Many commercial buildings may combine a grate with two different coarsenesses of mats for 30 feet or more to minimize exposure to potentially hazardous particulates. All entryway systems must meet LEED requirements as detailed in the Reference Guide and applicable CIRs. Are rooms adjoining a chemical use/storage area required to have closers on them? Yes, the intent of this credit is to, "Minimize exposure of building occupants to potentially hazardous particulates and chemical pollutants," as such a chemical use/storage area must be isolated to protect the occupant/s of the custodian\'s office and toilet from the adjacent storage area. It is not clear from the provided description as to whether exhausting the pool equipment room into the structured parking may pose a health hazard, particularly in the event of a chemical spill.