2021 Updates to 2018 Washington State Energy Code (2018 WESC)
With the new 2018 Washington State Energy Code (2018 WSEC) compliance on February 1, 2021 here is our summary of the changes: Commercial: 10. Enhanced Envelope 15% Improvement: 11. Reduced Air INfiltration 0.17 cfm/ft@75Pa: Residential: Small units (1,500 sq.ft.) […]
