You can blow spray foam or cellulose into the walls from outside.
How Do I Add Insulation To Existing Walls. We share the different types of insulation materials so you can select what works best for your house. A way that's becoming more popular is to paint your walls with a thermal insulation coating.
Spray Foam Insulation Applied over the Siding of Existing ... from basc.pnnl.gov
You can blow spray foam or cellulose into the walls from outside. You can insulate existing exterior walls either from inside or outside the house. A way that's becoming more popular is to paint your walls with a thermal insulation coating.
How can you add insulation to existing walls?
(before you insulate, you should make sure that your home is properly air. The following article will show you how to install this type of insulation into existing walls without removing drywall, blowing cellulose fibers between the studs. To insulate solid walls, explore the possibility of using an external wall insulation system, full details available in the if you don't add enough it won't insulate properly so you waste money if you insulate all the way to the side walls. Adding outlets in your home isn't particularly difficult.
