Understanding the Different Types of Insulated Garage Doors

Mar 1

Understanding the Different Types of Insulated Garage Doors

An insulated garage door keeps the home cool in the summer and warm in the winter while also helping to reduce noise.

An insulated garage door keeps the home cool in the summer and warm in the winter while also helping to reduce noise. This article offers an overview of the different types of insulated garage doors and their layers and discusses the meaning of R-value.

What is the R-value?

The R-value measures how well a material can resist the transfer of heat. It is a numerical rating used to compare different materials’ thermal resistance. The higher the R-value, the better the material can resist heat transfer. For instance, a material with an R-value of 10 is ten times more resistant to heat transfer than a material with an R-value of 1.

This value is the main element to determine the ideal insulation choice but is not the only factor worth considering. Location, weather, and garage door usage are all significant factors to keep in mind.

Garage door layers

Unsurprisingly, the more layers a garage door boasts, the better its insulation. However, adding more layers increases the door’s weight and complexity.

One-layer doors are the most basic and generally feature a single layer of steel. They include no insulation and are the only barrier between the garage and the outside world.

Two-layer doors have a base panel and an insulation layer secured by steel backings, providing more R-value to protect the garage from the elements better.

Three-layer doors feature thick insulation between two steel layers for the highest R-value, energy efficiency, and durability.

Types of garage door insulation

Insulated garage doors come in three main types according to their construction:

Vinyl-back insulated garage doors

Vinyl-back insulated garage doors are one of the most affordable options available. A vinyl-backed insulated garage door has sheets of polystyrene insulation sandwiched between two layers. A sturdy material that looks like thick wallpaper covers the layer facing the inside of the garage.

The primary benefit of vinyl-back insulated garage doors is that they are relatively inexpensive and lightweight. They are also easy to install and require minimal maintenance. However, vinyl-back doors are less durable than other options. They can become brittle over time and provide less insulation than the pricier varieties.

Steel back insulated garage doors

Steel back insulated garage doors are a more durable option. Steel back insulation is like vinyl-back insulation with an added layer of steel between the garage and the insulation. This layer covers the polystyrene insulation on the side of the door facing the inside of the garage.

The steel provides excellent durability and can withstand considerable temperature fluctuations. These doors are also still relatively lightweight. However, steel back doors are not as standard as vinyl, as they are more costly and complex to install.

Steelback polyurethane insulated garage doors

Steelback polyurethane insulated garage doors are the most durable and energy-efficient option. These doors have polyurethane insulation instead of polystyrene. As a liquid, the polyurethane expands and fills all the spaces inside the door. It then hardens and bonds to all surfaces.

Steelback polyurethane insulation has an R-value between 18 and 19, the highest of the three types. While this insulation type is the most effective and durable, these doors are heavy and cost more to install.

Choose the right door

Insulated garage doors provide an excellent way to keep the temperature in the garage consistent and reduce noise. When selecting an insulated garage door, it is essential to consider the different types of layers and the R-value. This will help in choosing the best door for one’s needs. Contact local garage door professionals to explore the options available and get a quote that meets one’s budget.

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