Home Improvement

Steel vs Fiberglass Exterior Entry Doors: Which is More Energy Efficient? 

Are you in the process of deciding which exterior entry door is best for your home? If so, you may be wondering whether steel or fiberglass doors save more energy. This article will compare the two materials and talk about how their energy efficiency is different. Find out which one is better for your home by reading on. 

Steel Entry Doors   

Advantages of Steel Entry Doors 

Steel entry doors are very long-lasting, strong, and safe, which makes them a great choice for a front door. They are less likely to get damaged by water and weather than wood doors, so they need less care and maintenance.

Additionally, they are fire-resistant, which provides a level of safety and peace of mind. Steel entry doors also keep your home cooler in the summer and warmer in the winter because they are very good at insulating.

Steel entry doors are also better for your budget because they are usually less expensive than other types of doors. Additionally, they are easy to install and require minimal upkeep. Steel entry doors also come in many different styles, so it’s easy to find one that matches the look of your home.

Disadvantages of Steel Entry Doors 

The main disadvantage of steel entry doors is that they may dent or scratch easily. This can be prevented by regularly applying a protective finish to the door, as well as avoiding immediate contact with hard surfaces. Steel entry doors can also rust, so it’s important to give them a coating that keeps them from rusting.

Factors Affecting Energy Efficiency of Steel Entry Doors 

Insulation is a big part of what makes steel entry doors energy efficient. Insulated steel doors have a layer of foam insulation, which keeps heat from escaping and helps keep energy costs down.

However, the amount of insulation in a steel door will vary depending on the type of steel and thickness of the door. It is also important to choose a door with weather stripping to make sure there is no air leakage and lessen the amount of energy lost.

Fiberglass Entry Doors   

Advantages of Fiberglass Entry Doors 

The greatest advantage of fiberglass entry doors is their durability. Fiberglass entry doors are resistant to cracking, warping, and denting, making them a great choice for homes in climates that experience extreme temperatures. Also, fiberglass entry doors hold up better to wear and tear than traditional wooden doors and are much easier to take care of.

Another great benefit of buying fiberglass entry doors from a trusted brand like STL Windows and Doors is their superior insulation. Fiberglass entry doors are significantly better at keeping out temperature and noise, making them great for energy efficiency. Also, fiberglass entry doors come in different styles and colors, so you can change them to fit the look of your home. 

Disadvantages of Fiberglass Entry Doors 

Despite its advantages, there are some drawbacks to fiberglass entry doors. One of the worst things about them is that they cost more than regular wooden doors. Also, fiberglass doors are not as strong as wooden doors, which makes them less safe. Finally, fiberglass entry doors are not as aesthetically pleasing as wooden doors and can be difficult to customize.

Factors Affecting Energy Efficiency of Fiberglass Entry Doors 

When it comes to energy efficiency, the most important factor to consider is insulation. Fiberglass entry doors should have a high R-value, which measures the door’s capacity to resist heat flow.

Energy efficiency also depends on the installation being done right. An experienced installer can ensure that the door is installed properly and that all of its components fit together correctly. Lastly, the type of hardware on the door can also affect how well it keeps heat in or out. For example, weatherstripping and insulated door frames can help keep air and water out.

Comparison of Steel vs Fiberglass Entry Doors  

When doing home improvement projects, homeowners take energy efficiency into account when choosing materials for their front door. Steel and fiberglass are both common materials for front doors, but which is better for saving energy?

When comparing the energy efficiency of steel vs fiberglass entry doors, there are a few factors to consider. Most of the time, steel entry doors are cheaper than fiberglass ones, which makes them a better choice. They also have thicker insulation than fiberglass doors, which can help keep your home cooler in the summer and warmer in the winter.

Fiberglass entry doors are more expensive than steel ones, but they are much better at keeping heat in and cold air out. Fiberglass doors are better at keeping out heat and cold because they have better insulation. This makes your home more comfortable all year round.

Additionally, fiberglass doors are much more durable than steel entry doors, meaning they’ll last longer. Nevertheless, you must buy your fiberglass doors from a trusted brand such as STL Windows and Doors to get the best results.


In the end, both steel and fiberglass exterior doors are good at saving energy and keeping heat in. But fiberglass is better in terms of energy efficiency because it insulates better and lets less air out. Steel doors, on the other hand, are more cost-efficient and offer greater security. Ultimately, it is up to the homeowner to decide which type of door best suits their needs.

Related Articles

Leave a Reply

Check Also
Back to top button