When using a paint pad, apply the paint with long, straight strokes, all in the same direction. Do not pull the pad back over the painted area. Also, be aware that paint pads have a tendency to leave lap marks if you do not feather the paint carefully where one stroke meets another.
It’s possible to retrofit insulation into an existing home, even without the access provided by remodeling. The choices, however, are much more limited. There are some retrofit insulation products that are designed for minimal disruption to finished wall or ceiling surfaces. Significant gains in R-value, however, may mean hiring a professional to assess your needs and devise an energy savings plan. Small or large, insulation projects can yield substantial gains in R-value and in comfort.