To meet the challenge of ever-increasing energy requirements, the glass itself is one of our major focuses. Along with the thermal performance of the steel frame, the glass performance has the most impact on efficiency.

The days of single glazed windows and doors are probably over or at least limited for exterior products. However, the days of the more complex glass makeup's offer a palette of choices for today's functional building envelope. A variety of glass types can be combined in an insulated glass unit for thermal reduction, as well as, tint controls, UV blocking and sound inhibition. These variations are needed to help adapt to the requirements of modern architecture. Along with meeting the code requirements, modern glass systems offer options that can enhance the user experience.


  • Thicker: 1 1/8”overall glass thickness on dual-glaze.
  • High performance composite spacer, matte dark, bronze finish.
  • Improved sound absorption.
  • High wind load resistance.
  • Improved energy performance.
  • Available in TDL (true-divided-light) or SDL (simulated devided light) options.
  • Available triple panel glazing.

Our textured glass option is ideal for introducing visual interest while cleverly creating a sense of privacy, especially for bathrooms and shower screens.
How to make textured glass?
By extruding semi-molten glass between two metal rollers to print different patterns, textured glass can be produced. The intensity of our patterns can be adjusted to achieve the required privacy and light transmittance.

5mm+6A+5mm Aquatex
5mm+6A+5mm Water Ripple
5mm+6A+5mm Flemish
5mm+6A+5mm Frosted
5mm+6A+5mm Reed
5mm+6A+5mm Watercube
5mm+6A+5mm Grey
5mm+6A+5mm Rain
5mm+6A+5mm Clear

All surfaces reflect, absorb and transfer heat. Low-E (low-E) glass helps control heat transfer, making buildings more comfortable, more energy-efficient, and full of natural light. The composition of our insulated glass units includes internal glass panels and external glass panels. They are separated by a "space bar", which creates a space injected with argon.

How is Low-E glass made?

Over the past three decades, technological advancements have produced systems and equipment that can coat glass with a thin, neutral coating (such as a blade). These coatings are made of extremely thin layers of metal oxides and other compounds to achieve specific optical and thermal properties. Depending on the layer used, the paint can control light, reduce heat absorption or loss, and obtain the desired color or aesthetics.


Laminated glass Our laminated glass significantly improves the window's resistance to breakage, adds color and sound control, and helps meet building codes and requirements.

How to make laminated glass?

When two or more layers of glass are permanently bonded to one or more plastic interlayers (PVB) using heat and pressure, laminated glass is produced. The glass and intermediate layer can have a variety of colors and thicknesses. Laminated glass is often referred to as "safety glass" because it can meet the requirements of various regulatory organizations. Laminated glass may break, but debris tends to adhere to the plastic layer and remain intact, thereby reducing the risk of injury. Laminated glass can be used in combination with tempered and heat-reinforced glass to further improve impact resistance.


In HERRERO we temper all our glasses. It is ideal when building codes or design specifications require secure solutions. Tempered glass is four to five times stronger than annealed glass, and breaks into fragments that are less likely to cause serious injury.

How it's made?

Tempered glass production involves heating the glass to over 1,000 degrees F, then rapidly cooling to lock the glass surfaces in a state of compression and the core in a state of tension.

Ready to speak with us about your new steel door or window?

Contact Us