Step 1: Assessing Your Attic Insulation Needs
1. Check Your Current Insulation Level
- Use a ruler or tape measure to determine the thickness of existing insulation.
- Compare it to the recommended R-value for your region (R-38 to R-49 in colder climates).
2. Identify Air Leaks & Ventilation Issues
- Before adding insulation, seal air leaks around:
- Light fixtures
- Ducts
- Chimneys
- Plumbing vents
- Ensure attic ventilation is adequate with soffit and ridge vents to prevent moisture buildup.
Step 3: Preparation Before Installation
1. Gather Necessary Materials & Tools
- Blown-in insulation (fiberglass, cellulose, or mineral wool)
- Insulation blower machine (rented or purchased)
- Protective gear (goggles, mask, gloves, coveralls)
- Ruler or depth gauge to measure insulation levels
- Plywood sheets for safe attic access
2. Protect Your Attic & Home
- Cover recessed lights with insulation-rated covers.
- Use foam board or barriers around chimneys and heat sources.
- Mark areas for ventilation to prevent blocking air circulation.
Step 4: Installing Blown-In Insulation
1. Set Up the Insulation Blower
- Place the blower machine outside or in a ventilated garage.
- Run the hose into the attic and have a helper feed insulation into the machine.
2. Start Blowing Insulation
- Begin at the farthest corner of the attic and work backward.
- Keep a steady hand and move the hose in a sweeping motion for even coverage.
- Maintain a consistent depth according to your target R-value.
3. Avoid Overfilling & Blockages
- Do not block vents or eaves with insulation—this can cause moisture issues.
- Keep insulation away from attic access points for easy future maintenance.
Step 5: Post-Installation Inspection & Cleanup
- Check insulation depth with a ruler or depth markers.
- Ensure vents and airflow paths remain clear.
- Clean up any excess insulation from attic floors and entryways.