The doors are the main access to your home. So, it is essential that they meet the security requirements of your family. Steel doors, in addition to their great resistance to blows, supply a higher degree of protection against thieves at home.
The main difference between steel and wooden doors is that the first is more resistant and durable than the latter.
The steel door construction is made from a galvanized steel sheet, which guarantees greater durability and resistance against corrosion. The structure can also be reinforced with steel frames, which makes it even more robust.
Steel door models offer high-security locks and multi-point systems that guarantee greater protection for your home.
You may assume that a steel door is a solid metal, but that is rarely the case unless you’re dealing with a marine or military application. Solid steel would be too heavy and cumbersome for traditional home use. Instead, these doors have the following components:
Steel skin. The outermost layer of the door is often made of steel, galvanized steel or aluminum. It can be painted, stained, or treated to look like wood. This steel skin is rolled into a panel shape and then filled with polyurethane foam insulation.
Insulation. To keep your home safe from heat transfer and noise pollution, steel doors are filled with polyurethane insulation—the most effective insulation material available for residential use.
Steel doors have polyurethane foam injected between two steel skins. This polyurethane foam is one of the best insulators available for entry doors due to its high R-value and its resistance to moisture penetration. It also helps deaden sound and resists denting better than other insulating materials.
Honeycomb core: This provides a lightweight structure to help support the weight of the door. It also reinforces the insulation to prevent it from being compressed as the door is opened and closed in use.
Polystyrene core: A polystyrene core provides additional insulation and helps protect against fire damage. It’s not as light as a honeycomb core, but it does provide better protection against fire spread through walls or between apartments in a multi-unit building.

