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

Enhanced material safety

Many chemicals used in building materials have not been fully evaluated for safety and may be known or suspected carcinogens, mutagens, or endocrine, developmental and reproductive disruptors. Voluntary programs in the market allow suppliers that have carefully screened the composition of their products and avoided potentially harmful substances to be recognized for their achievements.

This feature promotes the use of products that have been independently verified to be free of many suspected hazards.

Part 1: Full Control

The following requirement is met:

a.13 Every regularly occupied space has operable windows that provide access to fresh air and daylight.
Cardiovascular
Respiratory
Endocrine
Immune
Integumentary
Muscular
Digestive
Nervous

Applicability Matrix

Core & Shell Tenant Improvement New Construction
Part 1: Full Control O O O
Commercial Kitchen Schools Multifamily Residential Restaurant Retail
Part 1: Full Control O O P O O

Verification Methods Matrix

Letters of Assurance Annotated Documents On-Site Checks
PART 1 (Design)
Full Control
Architectural Drawing Spot Check
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.

26.1.c

USGBC's LEED v4 MR Credit: Building Product Disclosure and Optimization - Material Ingredients allows GreenScreen v1.2 Benchmark as one way to achieve Option 2.

26.1.d

USGBC's LEED v4 MR Credit: Building Product Disclosure and Optimization - Material Ingredients, Option 3 allows projects to combine allowed programs in meeting the 25% threshold.

26.1.b

USGBC's LEED v4 MR Credit: Building Product Disclosure and Optimization - Material Ingredients allows Cradle to Cradle v2 Gold or Platinum or v3 Silver, Gold or Platinum as one way to achieve Option 2.

13

International Living Future Institute. Living Building Challenge 3.0. Seattle; 2014: 38, 43-49, 60.

26.1.a

The International Living Future Institute's Living Building Challenge 3.0 Imperatives 10 and 12 require independently verified declarations of products.