Insulation Machines on Instagram: "Mastering Loose-Fill Insulation: How to Blow Cellulose, Fiberglass, and Mineral Wool Perfectly Level Blowing insulation like a pro starts with 4 key steps 👇 Step 1: Install Attic Rulers Before you blow, place rulers in each corner + at the access point. They’re required by code and ensure the correct R-value. Bonus: They keep coverage even and prevent bare spots. Step 2: Mounds + Valleys Build a mound of insulation to the right depth at each ruler, then use sm