How to Tell If Your Attic Needs More Insulation
Key Takeaways If attic insulation is level with or below the floor joists, or leaves joists visible, ENERGY STAR says adding insulation is worth considering. Check several areas: insulation should be spread evenly, including near the eaves, rather than judged by the deepest spot alone. Insulation depth is only a rough guide because R-value depends on the material; Illinois Extension notes that the right R-value varies with climate, home construction, and heating and cooling systems. Seal air leaks before adding insulation, and address wet material, damaged framing, blocked vents, or unsafe wiring first. Keep soffit ventilation paths open, and do not disturb vermiculite insulation during a routine attic inspection. Table of Contents How Do I Know If My Attic Needs More Insulation? What Indoor Signs Make an Attic Inspection Worthwhile? How Can I Inspect Attic Insulation Safely? How Should I Measure Insulation Depth and Estimate R-Value? How Much Attic Insulation Is Enough? Why Is...