If your insulation becomes wet, it's crucial to remove and replace it promptly. Wet insulation can significantly lose its effectiveness and may also pose health risks due to potential mold and mildew growth.
You should start by preparing your attic space. First, check and clear the area where the baffles will be installed, removing any old insulation from the edges if necessary. For more information, check out our guide https://www.greenattic.com/blogs/how-to-install-attic-baffles
To safely dispose of old insulation, first identify the type of insulation, wear appropriate protective gear, and contact your local recycling centers or waste management authorities for specific disposal or recycling guidelines.