The Fundamental Difference: Direct Sun Versus Diffuse Daylight North- and south-facing windows can use exactly the same glass and still create very different conditions inside a home. The reason begins with the path of the sun. In the UK, the sun travels predominantly across the southern part of the sky. A south-facing elevation therefore has […]
Tag Archives: Solar Gain
North, South, East and West: What Actually Changes? The direction a window faces changes when sunlight reaches it, the angle at which that sunlight arrives and how solar exposure varies throughout the day. That means two identical panes of glass on different elevations can create very different conditions inside the same home. South-facing glazing can […]
What Solar Control Glass Actually Does Solar control glass is designed to reduce the amount of solar energy passing through the glazing and contributing to heat inside the building. That becomes particularly relevant where architecture uses large areas of glass to bring in daylight, open up views and create a stronger connection with the landscape. […]
What Is a Low-E Coating? Low-E stands for low emissivity. In practical terms, a low-E coating is an extremely thin engineered layer incorporated into the glazing to help reduce the transfer of radiant heat through the glass. It can have a significant influence on thermal performance while remaining visually subtle within the finished window or […]
Rooflights and Roof Lanterns Create Different Kinds of Space Rooflights and roof lanterns are often discussed as alternative ways of achieving the same objective: bringing more daylight into a room from above. Yet their architectural effect can be markedly different. The distinction is not simply one of appearance on the roof. Each changes the relationship […]
Why Architectural Glazing Has Its Own Vocabulary Anyone embarking on a residential renovation, extension or self-build quickly discovers that architectural glazing comes with its own language. Conversations begin to include terms such as U-value, sightline, thermal break, solar gain and structural glazing, many of which are unfamiliar outside the construction industry. For homeowners, this vocabulary […]
Why Overheating Has Become a Modern Design Challenge For many years, conversations about windows centred on one question: how can we keep more heat inside the home during winter? That remains an important consideration, particularly as homeowners continue to look for ways to improve comfort and reduce energy consumption. Yet as building design has evolved […]







