When Is A Blower Door Test Required


Blower door tests have emerged as a pivotal tool in the world of building construction and renovation. By assessing a building’s airtightness, these tests provide critical insights into energy efficiency, indoor comfort, and sustainability. In this article, we’ll explore the when and where of blower door tests, covering when they are required for remodeled homes and new construction in New York State (NYS).

When Is a Blower Door Test Required?

1. New Construction in NYS:

  • In New York State, new residential construction projects are typically required to undergo blower door testing. The threshold for acceptable air leakage is set by the New York State Energy Conservation Construction Code (NYSECCC). The NYSECCC outlines the maximum allowable air changes per hour (ACH) for different climate zones. Compliance with these standards is mandatory, and blower door tests are conducted to ensure that the ACH values fall within the defined limits.
  • New construction projects in NYS must pass a blower door test to meet the state’s energy efficiency and sustainability goals. This requirement aligns with NYS’s commitment to reducing greenhouse gas emissions and promoting green building practices.

2. Remodeled Homes in NYS:

  • While the regulations surrounding blower door tests for remodeled homes in NYS are not as strict as for new construction, they are still encouraged. Homeowners undertaking significant renovations or remodels should consider voluntarily conducting a blower door test to improve energy efficiency, indoor air quality, and comfort.
  • Home performance improvements are a key focus in NYS, with various incentives and programs available to homeowners who take steps to enhance their homes’ airtightness and energy efficiency. Conducting a blower door test can be beneficial for identifying areas of air leakage and optimizing the retrofitting process.

Benefits of Blower Door Testing for Remodeled Homes and New Construction:

  • Energy Efficiency: Blower door tests reveal areas of air leakage, allowing homeowners and builders to address these issues, resulting in improved energy efficiency and reduced energy costs.
  • Indoor Comfort: By minimizing drafts and maintaining a consistent indoor temperature, blower door tests contribute to enhanced indoor comfort.
  • Indoor Air Quality: Reducing air leakage prevents the entry of outdoor pollutants and allergens, leading to better indoor air quality.
  • Sustainability: Ensuring airtightness in buildings aligns with sustainability and energy conservation goals.

Conclusion: The Path to Enhanced Efficiency and Comfort

In conclusion, blower door tests play a crucial role in promoting energy efficiency, indoor comfort, and sustainability in residential buildings. In NYS, they are required for new construction projects to meet specific energy efficiency standards. For remodeled homes, while not mandatory, blower door tests are highly encouraged as they offer numerous benefits to homeowners and align with the state’s commitment to sustainability.

Whether you’re building a new home, renovating an existing one, or simply seeking to improve your living environment, blower door tests are a valuable tool for achieving energy efficiency and airtightness. They pave the way for reduced energy costs, enhanced indoor comfort, and a more sustainable future in the Empire State.