Myths about Old House Walls and Insulation
The walls and insulation in older homes are notorious for being drafty and not retaining heat. Read on to learn the truth about older walls, how you go can insulate them from the cold and how to prevent air from flowing in the home.
Loose Fill Insulation is Not the Answer
Old walls are not easy to remove, and so many homeowners will blow loose fill between the sidewalls. This is a counterproductive step as it can cause paint failure from the outside and attract insects and rodents.
Homes today are built to code using a vapor barrier and other layers of protection. Older homes were not built with vapor barriers. Cold air hits the outside walls and condensates. This makes the blow insulation wet and causes it to settle and rot at the bottom of the wall.
Walls Insulation Can Not Be Removed
If you have already used blow insulation, it can be removed. Take down the siding and sheathing from the bottom of the outside walls and pull out the insulation.