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

WELL Addenda

WELL ADDENDA

Review the complete list of addenda changes made to the WELL Building Standard.

Feature 8: Healthy entrance

Type Description
Alternative Adherence Path
Type: Alternative Adherence Path
Post Date: 24 Oct, 2016

Where projects are restricted from using an entry vestibule or revolving door (for e.g. projects in the Philippines following the National Building Code, which prohibits revolving doors or vestibules for designated exits), they may use a permanent entryway system 3 meters long, and an air curtain to create an air seal. There are several specifications for this path:
1.       The air curtain must have a minimum velocity of not less than 2 meters per second (6.56 feet per second) at the floor, have been tested in accordance with ANSI/AMCA 220, and must be installed in accordance with manufacturer's instructions. It must also be commissioned prior to occupancy by a qualified agent.
2.       An indoor pressure sensor must be installed in the building lobby that is capable of providing automatic readings at least once an hour.
3.       The project team must specify target pressurization levels for these locations when the building is occupied. These levels have to keep air from entering the building more than the standard amount, allow occupants to open and close doors easily and not cause moisture problems due to exfiltration. Projects must provide documentation of these targeted levels and ensure they achieve the objectives outlines above.

Projects must also provide indoor pressure sensor readings from one day. This should include exhaust and supply sequences. Projects should also provide mechanical drawings of the project space and manufacturer documentation of the air curtain equipment.


Alternative Adherence Path
Type: Alternative Adherence Path
Post Date: 24 Oct, 2016

Where the options of an entry vestibule or revolving door are not possible for projects with regularly occupied lobbies, projects may create a healthy space by installing stand-alone air filters in the breathing zone near the primary seating of occupants, and near the entrance. A narrative must be included with documentation to describe the contaminants that will be filtered out along with an operations schedule for the maintenance of the air filters.


Alternative Adherence Path
Type: Alternative Adherence Path
Post Date: 06 May, 2016

In areas where building vestibules and revolving entrance doors are not common architectural elements, the requirements of Part 2 (Entryway Seal) may be met by controlling building pressure according to the following requirements:

- An indoor pressure sensor must be installed in the building lobby and near any other entrance to the building from the outside. The pressure sensor must be capable of providing automatic readings on a frequency of at least one per hour.
- The project team must specify the targeted building pressurization levels for these locations for when the building is in both cooling mode and heating mode. The pressure levels must keep outside air from entering the building (more than standard practice), allow occupants to open and close doors easily, and must not cause undue condensation or other moisture problems due to exfiltration through the building envelope.

To document this alternative path, the project team must provide the following in the documentation application submission:
- A narrative describing the targeted building pressurization levels for both cooling mode and heating mode.
- A narrative (and other supporting documentation as necessary) demonstrating that the pressure levels keep outside air from entering the building (more than standard practice), allow occupants to open and close doors easily, and do not cause undue condensation or other moisture problems due to exfiltration through the building envelope.
- Indoor pressure readings demonstrating one day of pressure sensor readings from a cooling period, and one day of pressure sensor readings from a heating period. The exhaust and supply sequences must be provided to demonstrate that the desired pressure readings will be achieved.


Amendment
Type: Amendment
Post Date: 10 Feb, 2016

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


Feature 9: Cleaning protocol

Type Description
Amendment
Type: Amendment
Post Date: 20 Oct, 2017

In system diagram, add: "Respiratory" and "Integumentary" to diagram and to list under diagram of body system


Equivalency
Type: Equivalency
Post Date: 23 Aug, 2017

Vikings by Rotulo Ecologico ABNT is not approved as an acceptable alternative to the requirements of Feature 09 Part 1. Equivalencies are a comparison of different codes and regulations and are appropriate for projects that wish to propose an equivalent standard, code, or practice to meet the feature intent.


Equivalency
Type: Equivalency
Post Date: 26 Jul, 2017

The Eco Mark Program has been accepted for Feature 09, Part 1.


Amendment
Type: Amendment
Post Date: 27 Apr, 2017

Remove: "e. The Cleaning Equipment and Training section of Table A4 in Appendix C". Add: "e. Dated cleaning logs that are maintained and available to all occupants"


Alternative Adherence Path
Type: Alternative Adherence Path
Post Date: 27 Apr, 2017

Projects registered as New and Existing Interiors that can demonstrate that aspects of the base building operation is outside of their control are not required to achieve Feature 09, Part 1: Cleaning Plan for Occupied Spaces.


Amendment
Type: Amendment
Post Date: 27 Apr, 2017

Remove: "A cleaning plan is created which includes following requirements". Add: "A cleaning plan is created that includes"


Amendment
Type: Amendment
Post Date: 27 Apr, 2017

Remove: "a. A list of high-touch and low-touch surfaces in the space (See Table A1 in Appendix C)". Add: "a. The Cleaning Equipment and Training section of Table A4 in Appendix C"


Amendment
Type: Amendment
Post Date: 27 Apr, 2017

Remove: "b. A list of approved product seals with which all cleaning products must comply (See Table A4 in Appendix C)". Add: "b. A list of approved product seals with which all cleaning, disinfection and hand hygiene products must comply in accordance with the Cleaning, Disinfection and Hand Hygiene Product section in Table A4 in Appendix C."


Amendment
Type: Amendment
Post Date: 27 Apr, 2017

Remove: "c. A cleaning protocol and dated cleaning logs that are maintained and available to all occupants". Add: "c. A list of high-touch surfaces and schedule of sanitization or disinfection as specified in the Disinfection and Sanitization section in Table A4 in Appendix C"


Amendment
Type: Amendment
Post Date: 27 Apr, 2017

Remove: "d. A cleaning schedule that specifies the extent and frequency that a surface is cleaned, sanitized, or disinfected in accordance with the Disinfection and Sanitization and Entryway Maintenance sections of Table A4 in Appendix C". Add: "d. A cleaning schedule that specifies the extent and frequency of cleaning, including the Entryway Maintenance section of Table A4 in Appendix C"


Amendment
Type: Amendment
Post Date: 17 Jan, 2017

Change Part 1b text to: 'A cleaning schedule that specifies the extent and frequency that a surface is cleaned, sanitized or disinfected in accordance with the Disinfection and Sanitization and Entryway Maintenance sections of Table A4 in Appendix C.'


Amendment
Type: Amendment
Post Date: 17 Jan, 2017

Add Part 1e with the following text: 'The Cleaning Equipment and Program Protocol section of Table A4 in Appendix C.'


Amendment
Type: Amendment
Post Date: 17 Jan, 2017

Remove Waste stream management section from the Cleaning Protocol guidelines.


Equivalency
Type: Equivalency
Post Date: 17 Jan, 2017

GECA and SCS have been approved as acceptable alternatives for F09, Part 1, Requirement d.


Equivalency
Type: Equivalency
Post Date: 17 Jan, 2017

The EU Ecolabel and the Charter for Sustainable Cleaning have been approved as equivalents for F09, Part 1, Requirement d.
Note that Multifamily Residential Pilot projects are required to meet GS-49 for residential cleaning services rather than GS-42.


Intent
Type: Intent
Post Date: 24 Oct, 2016

In the Feature description, remove the second paragraph. Replace with the following text:
'Intent: To reduce occupant exposure to pathogens, allergens, and harmful cleaning chemicals.'


Amendment
Type: Amendment
Post Date: 06 May, 2016

In Part 1 description, change “… a cleaning plan is created and presented…” to “… a cleaning plan is created in accordance with Table A4 in Appendix C and presented…”


Amendment
Type: Amendment
Post Date: 10 Feb, 2016

For Part 1b, add “and entryway walk off mats (if applicable)” after “each high-touch and low-touch surface” in the first sentence.


Feature 10: Pesticide management

Type Description
Equivalency
Type: Equivalency
Post Date: 27 Nov, 2017

The City of Malmoes Guidelines for Pesticide Use has been accepted as an alternative equivalent to the requirements for Feature 10 Part 1.


Equivalency
Type: Equivalency
Post Date: 20 Oct, 2017

Biopesticides registered with the Central Insecticides Board and Registration Committee (CIBRC) of India have been accepted as an alternative for the requirements of Feature 10 Part 1b.


Amendment
Type: Amendment
Post Date: 20 Oct, 2017

In system diagram, add: "Urinary" to diagram and to list under diagram of body system


Equivalency
Type: Equivalency
Post Date: 12 Oct, 2017

The European Standard PbEG L 230 and PbEG L 123 have been accepted as an alternative equivalent to the requirements for Feature 10 Part 1b.


Amendment
Type: Amendment
Post Date: 27 Apr, 2017

Remove: "The following conditions are met for all pesticides and herbicides used on outdoor plants". Add: "Pesticide and herbicide use on outdoor plants is eliminated, or hazards are minimized through one of the following:"


Amendment
Type: Amendment
Post Date: 27 Apr, 2017

Remove: "Pestcide and herbicide use is minimized by creating a use plan based on Chapter 3 of the San Francisco Environment Code Integrated Pest Management (IPM) program". Add: "The creation of a pest management plan in place of pesticide/herbicide use, based on Chapter 3 of the San Francisco Environment Code Integrated Pest Management (IPM) program"


Amendment
Type: Amendment
Post Date: 27 Apr, 2017

Remove: "Only pesticides with a hazard tier ranking of 3 (least hazardous) as per the City of San Francisco Department of the Environment's (SFE) Hazard Tier Review Process are used. Refer to Table A2 in Appendix C for more details". Add: "Use of hazard-ranked pesticides based on screening lists described in Table A2 in Appendix C."


Equivalency
Type: Equivalency
Post Date: 17 Jan, 2017

The UK Regulations Directive 2009/128/EC has been approved for F10, Part 1, Requirement a. Adopting organic farming principles described in Council Regulation (EC) No 834/2007 of 28 June 2007 has been approved as an acceptable method to comply with F10 Part 1, Requirement b.
Note that:
1. Any envisaged exemptions adopted from the SF IPM program has to be listed.
2. The public has to be notified of any pesticides use under exempt conditions
3. Annual update of the IPM plan
4. Display the IPM plan in the building communal area and/or on website
5. Engage organic gardening professional for design of landscaping, and if infestation occurs
6. Ensure that ongoing use of IPM is part of any FM contract that manages the landscaping


Amendment
Type: Amendment
Post Date: 24 Oct, 2016

Under Part 1b, remove "Reduced Risk Pesticide List" and replace with "Hazard Tier Review Process"


Intent
Type: Intent
Post Date: 24 Oct, 2016

In the Feature description, remove the second paragraph. Replace with the following text:
'Intent: To reduce the presence of pests in buildings and minimizing occupant exposure to harmful chemicals.'


Amendment
Type: Amendment
Post Date: 06 May, 2016

In Part 1 description, change “The following conditions are met for all pesticides and herbicides used on plants:” to “The following conditions are met for all pesticides and herbicides user on outdoor plants.”


Feature 11: Fundamental material safety

Type Description
Amendment
Type: Amendment
Post Date: 20 Oct, 2017

In part description, remove: "buildings". Add: "projects"


Amendment
Type: Amendment
Post Date: 20 Oct, 2017

In part description, remove: "on buildings". Add: "of projects"


Amendment
Type: Amendment
Post Date: 20 Oct, 2017

In part description, add: ", demolition," after "For repair, renovation"


Amendment
Type: Amendment
Post Date: 20 Oct, 2017

For Part 5b, remove: "Project develops a plan to upgrade current mercury-containing lamp". Add: _“Project does not install any lamps not compliant with the low-mercury limits specified in Appendix C, Table A5. Project develops a plan to upgrade any existing non-compliant lamps to low-mercury or mercury-free lamps.”


Amendment
Type: Amendment
Post Date: 20 Oct, 2017

For Part 1c, add: "For door hardware, project teams must document attempt to meet the requirement and demonstrate a petition or a formal request has been filed with manufacturers who were unable to meet their needs." after "Not more than 100 ppm (by weight) added lead in all other building materials."


Amendment
Type: Amendment
Post Date: 20 Oct, 2017

In part description, remove: "following guidelines". Add: "below guidelines, and a policy is put in place for future work"


Amendment
Type: Amendment
Post Date: 20 Oct, 2017

For Part 3a, remove: "or by a U.S. EPA accredited company experienced in asbestos assessment". Add: "or" before "accredited asbestos consultant..."


Verification type
Type: Verification type
Post Date: 20 Oct, 2017

Add: "and Policy Document" after "Remediation Report"


Amendment
Type: Amendment
Post Date: 20 Oct, 2017

In part description, remove: "carry out the following:". Add: "For" before "any projects undergoing...". Add "the below guidelines are applied and a policy put in place for future work:" after "PCBs"


Amendment
Type: Amendment
Post Date: 20 Oct, 2017

In feature background, remove: "(Please refer to Table A3 for additional details.)"


Equivalency
Type: Equivalency
Post Date: 05 Oct, 2017

The Dutch Working Conditions Legislation (including the Decree, Act, and Regulation) has been approved as an alternative to AHERA for Feature 11, Part 3. Note that projects must maintain a copy of the records produced by the asbestos investigator/abatement contractor, which should be made available to the building occupants.


Equivalency
Type: Equivalency
Post Date: 05 Oct, 2017

PCB directive NRW- RdErl. d. Ministry of construction and housing v. 3.7.1996 - II B 4 - 476.101 has been accepted as an alternative for the requirements of Feature 11 Part 4a.


Equivalency
Type: Equivalency
Post Date: 22 Sep, 2017

S.I. 386/2006, 589/2010, and 291/2013 have been accepted as an equivalent for AHERA and 40 CFR part 763 of Feature 11 Part 3. Note that inspection by an accredited professional is conducted every three years.


Equivalency
Type: Equivalency
Post Date: 21 Aug, 2017

Asbestos inspection every three years through an agency/lab accredited by the 'National Accreditation Board for Testing and Calibration Laboratories (NABL), India' has been accepted as an alternative to the requirements of Feature 11 Part 3a.
An on-site investigation of the commercial space conducted by an agency/lab accredited by the 'National Accreditation Board for Testing and Calibration Laboratories (NABL), India', has been accepted as an alternative to the requirements of Feature 11 Part 2a. Note that projects must maintain a copy of the records produced by the asbestos investigator/abatement contractor, which should be made available to the building occupants.


Amendment
Type: Amendment
Post Date: 27 Apr, 2017

Remove: "Not more than 100 ppm (by weight) added lead". Add: "Not more than a weighted average of 0.25% lead in wetted surfaces of pipes, pipe fittings, plumbing fittings, and fixtures, and 0.20% for solder or flux used in plumbing for water intended for human consumption"


Amendment
Type: Amendment
Post Date: 27 Apr, 2017

Add "c. Not more than 100 ppm (by weight) added lead in all other building materials."


Equivalency
Type: Equivalency
Post Date: 17 Jan, 2017

The New York Department of Environmental Protection Asbestos Control Program and Asbestos Rules and Regulations has been approved as an equivalent to AHERA for Feature 11, Part 3.
Note that projects must maintain a copy of the records produced by the asbestos investigator/abatement contractor, which should be made available to the building occupants.


Intent
Type: Intent
Post Date: 24 Oct, 2016

In the Feature description, remove the second paragraph. Replace with the following text:
'Intent: To reduce or eliminate occupant exposure to lead, asbestos, and PCBs from building materials.'


Verification type
Type: Verification type
Post Date: 10 Feb, 2016

Add MEP Letter of Assurance as required documentation.


Verification type
Type: Verification type
Post Date: 10 Feb, 2016

Add policy document as required documentation, remove Architect Letter of Assurance.


Feature 12: Moisture management

Type Description
Intent
Type: Intent
Post Date: 24 Oct, 2016

In the Feature description, remove the second paragraph. Replace with the following text:
'Intent: To limit the potential for bacteria and mold growth within buildings from water infiltration and condensation.'


Feature 13: Air flush

Type Description
Amendment
Type: Amendment
Post Date: 20 Oct, 2017

In system diagram, add: "Immune" to list under diagram of body system


Amendment
Type: Amendment
Post Date: 26 Jul, 2017

For Part 1a, remove: "4,500 m³ of outdoor air per m²". Add: "4,266 m³ of outdoor air per m²"


Intent
Type: Intent
Post Date: 24 Oct, 2016

In the Feature description, remove the second paragraph. Replace with the following text:
'Intent: To remediate construction-related indoor air contamination.'


Amendment
Type: Amendment
Post Date: 06 May, 2016

In Part 1b, change “0.3 CFM fresh air per ft² of floor area” to “0.3 CFM outdoor air per ft² of floor area”


Feature 14: Air infiltration management

Type Description
Amendment
Type: Amendment
Post Date: 20 Oct, 2017

In 26 Jul, 2017 Equivalency, remove: "Thernal". Add: "Thermal"


Amendment
Type: Amendment
Post Date: 20 Oct, 2017

In system diagram, add: "Immune" and "Respiratory" to list under diagram of body system


Equivalency
Type: Equivalency
Post Date: 01 Oct, 2017

NEN-EN 13829 has been accepted as an equivalent for ASHRAE Guideline 0-2005 and the NIBS Guideline 3-2012 of Feature 14 Parts 1 and 2.


Equivalency
Type: Equivalency
Post Date: 26 Jul, 2017

Previously published as AAP:
The ISO 9972-2015 - Thermal performance of buildings - Determination of air permeability of buildings - Fan Pressurization method is an acceptable alternative to meet WELL Feature 14 Part 1a.


Equivalency
Type: Equivalency
Post Date: 24 Oct, 2016

The Green Star Innovation Challenge: Air tightness testing is an accepted equivalent to Feature 14: Air Infiltration Management. Compliance with the Green Star credit is sufficient to comply with the WELL feature.


Intent
Type: Intent
Post Date: 24 Oct, 2016

In the Feature description, remove the second paragraph. Replace with the following text:
'Intent: To minimize air quality and thermal comfort issues resulting from the infiltration of untreated air through the building envelope.'


Equivalency
Type: Equivalency
Post Date: 26 Jul, 2016

Previously published as AAP:
In lieu of performing envelope commissioning in accordance with ASHRAE Guideline 0-2005 and NIBS Guideline 3-2012 for new construction or structural renovation), the project may complete a thermographic survey, airtightness test, and inspection and correction of defects in accordance with ATTMA TSL2 guidelines.


Feature 15: Increased ventilation

Type Description
Equivalency
Type: Equivalency
Post Date: 08 Aug, 2017

CISBE Guide A has been accepted as an alternative for the requirements in ASHRAE 62.1 2013 for Feature 3 Part 1 and Feature 15 Part 1.


Amendment
Type: Amendment
Post Date: 27 Apr, 2017

Remove: "The following is required in terms of the rate of outdoor air supply to all regularly occupied spaces". Add: "One of the following is required in all regularly occupied spaces"


Amendment
Type: Amendment
Post Date: 27 Apr, 2017

Remove: "Exceed ASHRAE outdoor air supply rates met in the WELL Ventilation Effectiveness feature by 30%". Add: "Exceed outdoor air supply rates met in Feature 03, Part 1a by 30%".


Amendment
Type: Amendment
Post Date: 27 Apr, 2017

Add: "b. Follow CIBSE AM10, Section 4, Design Calculations, to predict that room-by-room airflows will provide effective natural ventilation."


Equivalency
Type: Equivalency
Post Date: 27 Apr, 2017

CEN Standards EN 15251:2007 and EN 13779:2007 may be used in lieu of ASHRAE 62.1-2013 for Feature 15, Part 1. ​​​​

The project must meet Category I ​or II​ (described in Table 1)​ and must calculate the ventilation rate based on ​either of the below calculation methods​,​ referenced in EN 15251: 2007​, ​section B.1.3​ ""Method based on ventilation rate per person or per m² floor area​:"" ​
​1​) the addition of the ​occupant and building ​values ​(see section B.1.2)
2​) the highest value (maximum of the calculated value based on per person and the value based on per m² floor area from Table B.3)

​Additionally, the requirements of CEN Standard EN 15251-2007 must be met and the performance requirements of CEN Standard EN 13779:2007 related to ventilation and room conditioning systems must be met (excluding section 7.3, Thermal Environment; section 7.6, Acoustic Environment; section A.16; and section A.17).


Equivalency
Type: Equivalency
Post Date: 24 Oct, 2016

AS 1668.2 may be used in lieu of ASHRAE 62.1 for Feature 15, Part 1. Note that projects that wish to comply with AS 1668.2 must increase ventilation by 50% rather than the 30% increase required when complying with ASHRAE 62.1.


Intent
Type: Intent
Post Date: 24 Oct, 2016

In the Feature description, remove the second paragraph. Replace with the following text:
'Intent: To expel internally-generated pollutants through an increased supply of outdoor air.'


Amendment
Type: Amendment
Post Date: 06 May, 2016

Change Part name from "Increased Fresh Air Supply" to "Increased Outdoor Air Supply"


Amendment
Type: Amendment
Post Date: 06 May, 2016

In Part 1, change "The following is required in terms of the rate of fresh air supply to all regularly occupied spaces:" to "The following is required in terms of the rate of outdoor air supply to all regularly occupied spaces:"


Amendment
Type: Amendment
Post Date: 06 May, 2016

In Part 1a, change “Exceed ASHRAE fresh air supply rates…” to “Exceed ASHRAE outdoor air supply rates…”


Feature 16: Humidity control

Type Description
Equivalency
Type: Equivalency
Post Date: 04 Sep, 2017

ASHRAE 55 - Universal Comfort Zone has not been deemed acceptable as an equivalent method for the requirements of Feature 16 Part 1. ASHRAE 55 - Universal Comfort Zone includes a formula to calculate optimal interior relative humidity levels that may fall outside of the range specified in the WELL Building Standard.


Equivalency
Type: Equivalency
Post Date: 21 Aug, 2017

Projects situated in countries where local or regional standards do not pose strict requirements for relative humidity control (e.g. EN-15251) cannot earn points by not complying with the requirements of Feature 16, Part 1. Projects without dehumidification or humidification systems may earn points through Part 1b.


Intent
Type: Intent
Post Date: 24 Oct, 2016

In the Feature description, remove the second paragraph. Replace with the following text:
'Intent: To limit the growth of pathogens, reduce off-gassing, and maintain thermal comfort by providing the appropriate level of humidity.'


Feature 17: Direct source ventilation

Type Description
Equivalency
Type: Equivalency
Post Date: 21 Aug, 2017

Low emission criteria of EPEAT has been accepted as an alternative to Ecologo CCD 035, Blue Angel RAL- UZ 171 or Green Star in Feature 17 Part 1.


Amendment
Type: Amendment
Post Date: 17 Jan, 2017

Under Part 1, change the beginning of the first line to 'All cleaning and chemical storage units, all bathrooms and all rooms that contain printers and copiers…"


Intent
Type: Intent
Post Date: 24 Oct, 2016

In the Feature description, remove the second paragraph. Replace with the following text:
'Intent: To preserve air quality in occupied spaces through the isolation and proper ventilation of indoor pollution sources and chemical storage areas.'


Verification type
Type: Verification type
Post Date: 10 Feb, 2016

Add annotated mechanical and architectural drawing as required documentation, remove MEP Letter of Assurance, remove on-site spot checks.


Feature 18: Air quality monitoring and feedback

Type Description
Amendment
Type: Amendment
Post Date: 20 Oct, 2017

In 06 May, 2016 AAP, remove: "In projects with strict data privacy requirements, the". Add: "The"


Amendment
Type: Amendment
Post Date: 27 Apr, 2017

Add: "(measured at 1.2-1.8 m [4-6 ft] above the floor)" after "once an hour"


Intent
Type: Intent
Post Date: 24 Oct, 2016

In the Feature description, remove the second paragraph. Replace with the following text:
'Intent: To monitor and effectively remediate indoor air quality issues and inform building managers and occupants of the quality of the indoor environment.'


Alternative Adherence Path
Type: Alternative Adherence Path
Post Date: 06 May, 2016

The requirements of Part 3 (Environmental Measures Display) may be met by hosting the required data on a website accessible to occupants and in locations where the physical display would be located, placing signage indicating the website where the data may be accessed.


Amendment
Type: Amendment
Post Date: 06 May, 2016

In Part 1 description, change “Monitors measure 2 of the following pollutants in a regularly occupied space…” to “Monitors measure 2 of the following pollutants in a regularly occupied or common space…”


Verification type
Type: Verification type
Post Date: 10 Feb, 2016

Add on-site spot checks as required verification.


Feature 19: Operable windows

Type Description
Alternative Adherence Path
Type: Alternative Adherence Path
Post Date: 27 Apr, 2017

For Feature 19, Part 1, a dedicated outdoor terrace can be provided. The terrace must satisfy the following requirements:
a. Must be directly accessible from the tenant space
b. Must be able to accommodate a minimum of 15% of the total regular project occupants
c. Must be adequately shaded to allow occupants to perform their work without significant glare
d. Feature 19, Part 2 and Part 3 must be addressed


Alternative Adherence Path
Type: Alternative Adherence Path
Post Date: 17 Jan, 2017

To fulfill Feature 19, Part 1, projects may provide operable windows to 95% of the regularly occupied spaces (by floor area) in the office, provided that regularly occupied spaces, which do not have windows, have larger doorways to allow fresh air in, when open.


Intent
Type: Intent
Post Date: 24 Oct, 2016

In the Feature description, remove the second paragraph. Replace with the following text:
'Intent: To increase the supply of high quality outdoor air and promote a connection to the outdoor environment by encouraging occupants to open windows when outdoor air quality is acceptable.'


Amendment
Type: Amendment
Post Date: 06 May, 2016

Change “Every regularly occupied space has operable windows that provide access to fresh air…” to “Every regularly occupied space has operable windows that provide access to outdoor air…”


Verification type
Type: Verification type
Post Date: 10 Feb, 2016

Add Architect Letter of Assurance as required documentation, remove annotated architectural drawing.


Verification type
Type: Verification type
Post Date: 10 Feb, 2016

Add policy document as required documentation, remove Architect Letter of Assurance.


Verification type
Type: Verification type
Post Date: 10 Feb, 2016

Add Owner Letter of Assurance as required documentation, remove Architect Letter of Assurance.


Feature 20: Outdoor air systems

Type Description
Amendment
Type: Amendment
Post Date: 26 Jul, 2017

For Part 1b, remove: "all applicable ASHRAE standards and codes". Add: "ventilation standards used in Feature 03 Ventilation effectiveness"


Intent
Type: Intent
Post Date: 24 Oct, 2016

In the Feature description, remove the second paragraph. Replace with the following text:
'Intent: To allow buildings to control the outdoor air supply independently from the heating/cooling needs of the building.'


Feature 21: Displacement ventilation

Type Description
Equivalency
Type: Equivalency
Post Date: 21 Aug, 2017

REHVA Guidebook No. 1 (Displacement Ventilation in non-industrial premises) may be used in lieu of the System Performance Evaluation and ASHRAE Guidelines RP-949 for Feature 21, Part 1.


Intent
Type: Intent
Post Date: 24 Oct, 2016

In the Feature description, remove the second paragraph. Replace with the following text:
'Intent: To improve air quality in the breathing zone of the room and maintain thermal comfort by supplying low velocity outdoor air near the floor and expelling near the ceiling.'


Amendment
Type: Amendment
Post Date: 06 May, 2016

Replace “One of the following is met for projects implementing a displacement ventilation system for heading and/or cooling:” with “Projects implement a displacement ventilation system for heating and/or cooling in which one of the following is met:”