R-value (insulation)

R-value is like a coat of armor for your home. It helps keep the warmth inside your home during the winter, and the cool air inside during the summer. It's measured in a number called an R-value — the higher the R-value, the more insulation the material has. Adding insulation with higher R-value to your walls, attic and floors helps keep the temperature inside your home comfortable and can help you save money on energy bills.