regression method

Proposal for improving the linear regression method and uncertainty calculation in building airtightness tests

Submitted by on Mon, 01/13/2025 - 09:54

Improving the energy efficiency of buildings and the quality of indoor air requires accurate assessments of airtightness. The conventional regression method, Ordinary Least Squares (OLS) regression—as shown in ISO 9972—encounters challenges in the occurrence of fluctuating wind conditions, affecting the reliability of air permeability measurements.