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Envelope Leakage Testing

Envelope leakage testing, also known as building envelope testing, is a process used to evaluate the airtightness or air leakage of a building’s envelope. By identifying and quantifying air leakage, building owners and designers can take necessary measures to improve energy efficiency and occupant comfort. The United States Army Corps of Engineers Air Leakage Test Protocol for Building Envelopes

  • ISO 9972:2006 – Thermal performance of buildings β€” Determination of air permeability of buildings β€” Fan pressurization method
  • ASTM E779 – Standard Test Method for Determining Air Leakage Rate by Fan Pressurization
  • ASTM E1827 – Standard Test Methods for Determining Airtightness of Buildings Using an Orifice Blower Door
  • ASTM E3158 – Standard Test Method for Measuring the Air Leakage Rate of a Large or Multizone Building
  • ATTMA – Measuring Air Permeance of Building Envelopes (Dwellings)
  • ATTMA – Measuring Air Permeance of Building Envelopes (Non-Dwellings)

We use testing systems with the complying software that integrates results of a Door Blower test. Our engineers can test small to large dwelling and non-dwelling spaces in accordance with ATTMA standards Level-01 & 02. AWT professional testers are ATTMA certified and can operate in compliance with the highest standards and regulations.