Healthy entrance

Occupants often track harmful contaminants indoors, including bacteria, heavy metals, lawn and agricultural pesticides, among other toxins. In addition, as occupants walk through entry doors, potentially polluted air can enter the building. Both of these modes of introducing outdoor pollutants to the indoor environment highlight the need for measures that minimize or prevent the introduction of potentially harmful substances to indoor spaces.

Part 1: Entryway Walk-Off Systems

To capture particulates from occupant shoes at all regularly used entrance(s) to the project, one of the following is installed and is maintained on a weekly basis:

a.¹ Permanent entryway system comprised of grilles, grates or slots, which allow for easy cleaning underneath, at least the width of the entrance and 3 m [10 ft] long in the primary direction of travel (sum of indoor and outdoor length).

b.¹ Rollout mats, at least the width of the entrance and 3 m [10 ft] long in the primary direction of travel (sum of indoor and outdoor length).

c.¹ Material manufactured as an entryway walk-off system, at least the width of the entrance and 3 m [10 ft] long in the primary direction of travel (sum of indoor and outdoor length).

Part 2: Entryway Air Seal

One of the following is in place to slow the movement of air from outdoors to indoors within mechanically ventilated main building entrances:

a. Building entry vestibule with two normally-closed doorways.

b. Revolving entrance doors.

c. At least 3 normally-shut doors that separate occupied space from the outdoors. For example, a space on the fifth-floor could be separated by the exterior building doors, the first-floor elevator doors and the fifth-floor elevator doors. This option is applicable only for buildings whose entrance lobby is not a regularly occupied space.

Part 3: Playing Field Staging Area

The following must be present in all facilities adjacent to an exterior grass sports field, if present:

a.¹³² A staging area and mud room separates the playing field from the locker room to capture mud and moisture.

Cardiovascular

Immune

Respiratory

	Core & Shell	New & Existing Buildings	New & Existing Interiors
Part 1: Entryway Walk-Off Systems	P	P	O
Part 2: Entryway Air Seal	P	P	O

	Commercial Kitchen	Education	Multifamily Residential	Restaurant	Retail
Part 1: Entryway Walk-Off Systems	-	P	P	P	O
Part 2: Entryway Air Seal	-	P	P	P	O
Part 3: Playing Field Staging Area	-	P	-	-	-

Verification Methods Matrix

	Letters of Assurance	Annotated Documents	On-Site Checks
Part 1: Entryway Walk-Off Systems			Visual Inspection
Part 2: Entryway Air Seal			Visual Inspection
Part 3: Playing Field Staging Area			Visual Inspection

Show Standard Citations

1

U.S. Green Building Council. LEED v4: Reference Guide for Building Design and Construction. Washington D.C.: U.S. Green Building Council; 2013: 37, 43-44, 541-552, 567, 605, 623, 645-53, 658-61, 682-3, 685-6, 723-4.
08.1.a	USGBC's LEED v4: Reference Guide for Building Design and Construction EQ Credit: Enhanced Indoor Air Quality Strategies requires permanent entry walk-off systems.
08.1.b	USGBC's LEED v4: Reference Guide for Building Design and Construction EQ Credit: Enhanced Indoor Air Quality Strategies requires permanent entry walk-off systems.
08.1.c	USGBC's LEED v4: Reference Guide for Building Design and Construction EQ Credit: Enhanced Indoor Air Quality Strategies requires permanent entry walk-off systems.

**132**

**Wenger Corporation. Planning your athletic facility. http://www.wengercorp.com/Construct/docs/Athletic%20Planning%20Guide%20b.... Published 2011. Accessed March 25, 2015.**
08.3.a	The guide states that supporting spaces are critical to the function of the athletic program, including ares such as a staging area for helping to prevent dirt and moisture from entering the facility.

This is a legacy version of the WELL Building Standard. Please check the latest version here.

08. Healthy entrance