Air retarder

{
  "id": "MLC-T-ENV-000905",
  "term": "Air retarder",
  "field": "Environment",
  "term_source": "Air Retarder",
  "definition": "A material or structural element that inhibits air flow into and out of a building's envelope or shell. This is a continuous sheet composed of polyethylene, polypropylene, or extruded polystyrene. The sheet is wrapped around the outside of a house during construction to reduce air in-and exfiltration, yet allow water to easily diffuse through it.",
  "subject": "Built environments",
  "references": [
    "DOE Office of Energy Efficiency & Renewable Energy Glossary of Energy-Related Terms"
  ],
  "url": "https://mlchart.com/terminology/environment/air-retarder/"
}