Blow in blanket system bibs is the trademarked name for a patented new construction method of insulating walls with blower injected insulation that can be used for either open or closed walls.
Blown in insulation existing walls.
The hole is then.
To install blown in insulation in existing walls holes are drilled at the top of each stud space usually on the exterior and material is blown in via a long flexible hose.
Insulation in house exterior walls is one of the primary defenses against heat and energy loss.
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.
On open walls a fabric sheath is attached to studs providing a type of cage that contains blown in fiberglass not cellulose insulation in pellets.
It s cheaper and easier to create small penetrations in the wall so that the insulation can be blown in.
So if your house was built before insulating walls became standard you can potentially save a great deal of energy by insulating.
For that reason blown insulation is usually the preferred choice when you have to re insulate a completed wall.