How Does a Portland Home Energy Score Assessor Know About Wall Insulation?

Insulation in Walls Portland Home Energy Score

You just had a Portland Home Energy Score done (Hopefully by A Quality Measurement) on your home and you’re wondering how the assessor knew the R-value for the insulation hidden in the walls. The answer is that the assessor does not know; rather, he/she estimates the value based on the best available evidence. Remember that […]