Glass Options

Associated products

Commercial use

Residential projects

Commercial projects




Solar Control Coatings

By using a Solar Control Coating on your architectural glazing design you can:

  • Reduce Solar Gain whilst maintaining light transmission and clarity
  • Reduce cooling costs in high glazed spaces
  • Create a comfortable internal environment with a minimal glass design
  • Suitable to be applied to almost any glass specification or product

With the rise in large glass elevations used in architectural design projects both residential and commercial. In addition, the technical advances in the thermal insulation of glass mean more and more architects include large glass elevations in their designs for a contemporary design aesthetic. As well as using a low e coating within the insulated glass, IQ Glass recommends that a solar control coating should be considered in design.

Solar Control Coatings

The solar control coating is applied to the internal face of the external glass panel of an insulated glass unit, also known as face two of the glass unit. The metal oxide coating reduces the amount of short wave radiation that travels through the glass unit thus reducing the increased heat levels inside.

There are a range of solar control coatings available, affording you different levels of light transmission, external tints and solar control. The most popular of these solar control coatings is a 70/35 solar control coating which maintains the unit’s light transmission at 70% for a natural appearance whilst reducing the G factor of the glass unit to 35%.

Solar Control coatings must always be used on an insulated glass unit, either double or triple glazed.


Typical Neutral Solar Coatings

The neutral finish delivers high light transmittance while reducing solar heat gain. There is an extremely diverse range of Solar Control Coatings available. Below are the most popular neutral finish coatings.


70% Light Transmission

37% G factor

1.0 Ug value

11% External Reflection


70% Light Transmission

41% G factor

1.1 Ug value

11% External Reflection


70% Light Transmission

35% G factor

1.0 Ug value

14% External Reflection


40% Light Transmission

23% G factor

1.0 Ug value

16% External Reflection


51% Light Transmission

28% G factor

1.0 Ug value

12% External Reflection


62% Light Transmission

34% G factor

1.0 Ug value

15% External Reflection


29% Light Transmission

18% G factor

1.1 Ug value

17% External Reflection



Tinted Solar Control



Light is beautiful. Excessive heat is not. IQ’s solar control coatings can be tinted to create striking statements using our advanced architectural glazing.

Tinted colours from warm grey, green, white and black complimenting the low-E and solar control coatings. Their neutral appearance is the most similar to clear uncoated glass.

Below are a few examples of tinted colours that can be applied to the solar control coating:


Solar Control Tinted Colours

ASK US ABOUT OUR Solar Control Glass


Commercial use

Solar Control Coatings for Commercial Projects

Architects and designers are challenging the use of glass in their designs and projects. The majority of architectural projects, especially commercial projects such as office and hotels use large glass facades, use solar control coatings to prevent hot, uncomfortable internal spaces that would be caused by Solar Gain through the glass elevations.

Controlling Solar Gain is a large element of modern building modelling and BREEAM calculations to ensure that large amounts of energy do not need to be expounded to cool down spaces that have not been properly designed.

IQ Projects is the specialist commercial division of the IQ Group - www.iqprojectsuk.com


Featured Project Wigmore Street

IQ Glass designed the large glass façade to this office front in central London. The project included a full office refit with a new entrance elevation. The full glass façade to the front to a commercial office building utilised some of the largest structural glass panes available in the UK

The large structural glass units used within the glass façade included a solar control coating in order to reduce the solar gain and overheating that could occur within highly glazed spaces.

As the structural glass panels were nearly 6m high the glass façade was exposed to natural sunlight for a large portion of the day. If no solar control coating was specified on these structural glass units the internal spaces would have become unbearably hot under direct sunlight.


Solar Control IQ Glass Product Info Sheet


Solar Control Options for Structural Glass