About 3M Window Insulation

Basics

• 3M sells insulation kits designed specially for the inside and outside of windows. The product uses 3M's double-sided Scotch Window Film Mounting Tape, and it clings tightly to the window, sealing cracks and gaps. The sheets are transparent and don't wrinkle. You can purchase 3M's window-insulation kits in a variety of sizes and shapes. The company makes insulation kits designed specifically for patio doors, oversized windows and many other types of windows. Insulation designed for the outside of windows is meant to keep out frost and prevent condensation from building up.

Energy-Saving Potential

• According to "Washington Post" contributor Tim Carter, older windows "are possibly the largest energy thieves in your home." Single-pane glass -- popular in older construction jobs -- lets a lot of heat escape from your house. Most older windows are also insulation deficient, meaning warm air will slip out of your house via the edges of the window panes. You can either remedy the situation with a product like 3M's, or you can opt to replace the old windows with newer, energy-efficient models.

Installation

• To install the window insulation, you need a tape measure, scissors and a hair dryer. Cut the window insulation to the size of your window panel, leaving 1 extra inch on all sides. Line the window frame with the double-sided tape that came with your kit and remove the paper liner off the top. Carefully stick the edges of the insulation film onto the tape. Pull the film tight, removing any wrinkles. Apply heat to the taped areas with the blow dryer.

Other Tips

• Other than using 3M's window insulation product, you can also keep your utility bills down by changing your furnace filter every three months, keeping your lint traps clean and turning your thermostat down about four degrees. Turn your thermostat down when you aren't home, or use a small space heater. Close your blinds at night to trap heat, and keep them open during the day to let the sunlight warm your house.