R-value is a measure of thermal resistance used in the garage door and construction industries to determine the effectiveness of insulation materials. It indicates a material’s ability to resist heat flow.

A garage door’s R-value is calculated by dividing the thickness of the insulation by its thermal conductivity (the material’s ability to conduct heat). For example, if a garage door has an R-value of 10, it means it resists heat flow 10 times more effectively than a garage door with an R-value of 1. A higher R-value means better insulation properties.

There are several advantages to having a garage door with a higher R-value:

• Better thermal insulation: The primary benefit of higher R-value insulation is improved thermal resistance. It effectively reduces heat transfer between the interior and exterior of the garage, maintaining a more stable temperature.
• Reduced energy costs and sustainability: Higher R-value insulation lowers energy costs by reducing the energy needed to maintain the desired temperature in your garage and home. A well-insulated garage door helps stabilize indoor temperatures. As a result, it may lower utility bills by cutting down on heating and cooling usage, which, in turn, also helps reduce your carbon footprint.
• Better sound insulation: Higher R-value insulation reduces noise transmission from outside.
• Increased home value: A home with an insulated garage door featuring a higher R-value may appeal more to potential buyers, as it indicates a more energy efficient indoor environment.

Many consumers assume all garage doors have the same build quality and materials. However, R-value varies between doors and is an important factor to consider when choosing a garage door.