Blog » grade 1 installation

What Grade Does Your Insulation Belong In?

Shawna HendersonFebruary 01, 2017

In the US, there’s a requirement for HERS raters to determine if batt insulation has been installed properly. There are three ‘grades’ of batt installation, with a Grade 1 installation being the best and Grade 3 being the worst. When batt insulation is installed properly, it touches all six sides...