Some sources (including LEED User) suggest that hallways pressurized with mechanical ventilation can be used to ventilate spaces in dwelling units that are adjacent to the unit entry door through i

The need to keep FTEs consistent through all credits is stressed though in the case of IEQp1 where for Mechanical Ventilation, table IEQp1-3, for code compliance based on square footage, the Pz (zo

Hi, I received a comment for (Design Preliminary Submission) ventilation calculations indicate a total area (3,055 sqf) significantly less than plf2 (6219 sqf) for the IEQp1 Our response is; The ar

Looking for consensus on whether it is required for compliance with 62.1 for this prerequisite to provide ventilation for laundry rooms within dwelling units of a high-rise residential tower?

Dear all, I have a Pantry zone in an office building that is conditioned spearetely by a FCU. This zone has refrigerator, coffee maker, and recycling bins.

Hi, Can anyone kindly interpret the sentence below from ASHRAE 62.1 2007 'All naturally ventilated spaces must be within 25' of (and permanently open to) operable wall or roof openings to the outdo

In New York the local code does not follow IBC or ASHRAE 62.1. It requires 20cfm/person and 0cfm/sf.

Hi all, I'm working on a distribution center project that intakes the air by docks and exhusts it through fans in the roof.

A storage room with openings on a direct naturally ventilated space must meet the requirements of ASHRAE 62.1 for spaces without direct openings to the outdoors ventilated through adjoining rooms (