DIY Network

How to Replace Missing Attic Insulation

If your home has a recurring mold problem it may help to add insulation in the attic. Learn how to install missing attic insulation with these helpful step-by-step instructions.

More in Remodeling

adding insulation in attic
  • Time

    1 hour

  • Price Range

    $1 - $50

  • Difficulty



Step 1: Replace Insulation

Once in the attic, replace the missing insulation. To help maintain its loft, avoid pressing down the insulation or compressing it into tight spaces.

When installing insulation with a paper vapor barrier, make sure the vapor barrier faces the living space per manufacturer's instructions.

Use a straightedge to carefully guide the utility knife and cut from the paper side.

Always follow the manufacturer's guidelines

replace missing attic insulation