Steel Wool And Spray Foam
Fill the hole with expanding spray foam.
Steel wool and spray foam. Mineral wool batts for 2 6 walls have an r value of 23 compared with r 19 for fiberglass batts. A 2 4 stud cavity filled with blown in cellulose has an r value of about 13. Spray foam is an excellent way to quickly block a hole especially on larger openings underneath the rig and in storage compartments where pipes or wires are fed through. Spray the foam onto the steel wool and use a putty knife to shape it as desired.
With a little crack mice or rodents can sneak through a 1 4 crack in the walls or foundation of any home or business very easily. Because of the way it s woven copper wool is said to. Spray foam insulates better than all of these but it s far more expensive. Pack the hole tightly with steel wool to prevent any possible entrance through the hole.
These often work to solve the immediate need. Fill the mouse hole with steel wool. The caulking compound makes the patch surface smooth so the mice can t get through it. However the mice may die in the wall causing an unpleasant odor in the home while the body decays.
Remember that this foam expands a lot including right through the hardware cloth i filled a 4 inch gap around a bent pipe using this technique. Spray foam is not the most attractive to look at so only used it where it is hidden. You can t use steel wool on its own because the mice will be able to pull it out or chew through it. It has been really rainy in minnesota this spring and things are super wet outside which has created a need to discuss home entry divergent tactics by using a new technique.
This will provide a base for the expanding foam that rodents cannot chew through. Steel wool and spray foam. Once the foam expands. There are some very effective professional exclusion products that we utilize in our repairs.
Mice will eat the steel wool which will kill them. But it looks sloppy and it doesn t keep them out very long. Pack steel wool into the opening until it is tightly sealed. The foam takes time to expand and harden.
If you are spraying overhead spray right through the patch so the foam grows on top of the patch. Work quickly because the foam dries fast. Most people use steel wool or spray foam to stop mice from entering their home. The foam grew several inches above and below the patch.
You may want to try copper wool instead of steel wool for several reasons.