Three feet of insulation can cost about $12 at the hardware store, but several pounds of homemade insulation can be made using scrap dry cardboard and a grinder. Generally, homeowners insulate their homes with foam to help reduce heating costs. Homemade cardboard insulation accomplishes the same goal as foam insulation for a fraction of the cost. The ground fluffy cellulose from the cardboard is glued onto the walls or on open wood boards in the attic.
Things You'll Need
- Dry cardboard scraps
- Farm-style hammermill (grinder)
- 4 gallon multipurpose glue
Add dry scraps of cardboard into farm-style hammermill.
Turn machine on and wait for fluffy, cellulose to come out. Collect this in a bucket.
Mix the ground cardboard with multipurpose glue and apply immediately on the walls or wood boards.
Dry for 36 hours.