Retrofit industry boosts BPI certifications

The number of contracting companies earning Building Performance Institute (BPI) Accredited Contractor status has doubled for the second year in a row, according to the Malta, N.Y.-based BPI.

By the end of 2010, BPI had issued 20,236 certifications nationwide, 10,637 of which were earned in the past year.

The residential energy-efficiency retrofit industry has created strong demand for credential-giving bodies, the Malta, N.Y.-based group announced this week during the International Builders' Show in Orlando, Fla.