Home Safety / Products / Drywall and Gypsum Board (Chinese Drywall Sulfur Off-Gassing)

Drywall and Gypsum Board (Chinese Drywall Sulfur Off-Gassing) — household safety profile

Low risk

Standard gypsum drywall is chemically inert and safe.

What is this product?

Standard gypsum drywall is chemically inert and safe. However, defective Chinese-manufactured drywall imported during the 2004-2008 US housing boom contained excess sulfur compounds that off-gassed hydrogen sulfide (H2S) and other sulfurous gases. 100,000+ homes affected in FL, LA, VA, and other states. Symptoms: headaches, respiratory irritation, copper pipe/wire corrosion (black coating), and characteristic 'rotten egg' smell. Remediation requires complete drywall replacement.

What's in it

Click any compound name for its full safety profile, regulatory consensus, and exposure data.

Trace Emission

Who's most at risk

  • Children — Developing endocrine and neurological systems, higher exposure per body weight

Red flags — when to walk away

  • Visible mold, persistent chemical odor, or symptoms when home — Indoor air quality issue requiring investigation.

Green flags — what to look for

  • GREENGUARD Gold, CRI Green Label Plus, or equivalent IAQ certification — Product tested for low chemical emissions.

Safer alternatives

  • US-manufactured drywall from established brands — USG, National Gypsum
  • Mold-resistant drywall — fiberglass-faced instead of paper — for humid areas
  • Paperless drywall for bathrooms and basements — Alternative

Frequently asked questions

Who should be careful with Drywall and Gypsum Board (Chinese Drywall Sulfur Off-Gassing)?

Vulnerable populations identified for this product type: children.

Are there safer alternatives to Drywall and Gypsum Board (Chinese Drywall Sulfur Off-Gassing)?

Yes — consider: US-manufactured drywall from established brands; Mold-resistant drywall; Paperless drywall for bathrooms and basements. See the Safer alternatives section above for details.

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Reference data, not professional advice. Aggregates publicly available regulatory and scientific information. Why we built ALETHEIA →