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Q. Which types of windows and doors are suitable for ClimaGuard ® 365?
You can use ClimaGuard ® 365 for all types of windows and doors as an alternative to standard low-e glass. However, it is best suited to IGUs on elevations that are exposed to prolonged sunlight, which in the UK means the south and south west elevations. When you think about how easy it is for a greenhouse to warm up during the summer, you can understand why ClimaGuard ® 365 is a must-have for larger windows and doors on sunny aspects, particularly sliding doors and bi-folds, as well as conservatories.
Q. As ClimaGuard ® 365 offers enhanced solar control, won’ t it cut the amount of solar gain – the‘ free’ heat from the sun – thus making homes feel colder?
No, not when used in the right applications. All types of solar control glass are designed to limit solar gain. That means solar control glass is not usually the best option on north facing elevations where we probably want to make use of the heat resulting from the relatively little sunlight we receive from that direction. Hence, it is important to consider where low-e glass might be a better option – the solar reflectivity benefit outweighs the slight reduction in solar gain in winter when the daylight hours are shorter anyway.
Q. Why now for ClimaGuard ® 365? The main thing is to ensure our homes are better placed to deal with a warming climate. The stand-out memory of summer 2026 for most people in the UK will be the intense heatwaves we experienced. And this year wasn’ t just a one-off for excess heat – four of the five warmest years on record in the UK are within the last five years according to the Met Office.
As we’ ve always built homes in this country in the modern era to prioritise winter warmth, it is no surprise that they struggle to provide a comfortable environment during periods of high temperatures and intense sunshine. Understandably, this is leading more homeowners to look at ways to cool their homes – particularly by installing air conditioning, for which enquiries are up 320 % year-on-year according to MyBuilder. com.
While air conditioning may provide an effective solution, these systems are costly to install and maintain and they incur ongoing electricity charges to operate at a time when energy costs are at record highs – all with an associated carbon cost. This is why a better approach is to look at how we can prevent our homes gaining too much heat in the first place when the sun shines, especially through windows and doors.
Q. How does ClimaGuard ® 365 insulate homes in winter?
The innovative double silver coating applied to the glass has a dual function with what’ s known as a‘ high selectivity’. This is the key to its ability to offer excellent thermal insulation to help keep homes warm in winter, matching many of the highest performing low-e glass products. It has a Ug value of just 1.0 W / m ² K, meaning it offers summertime cooling without compromising insulation for winter.
Q. Does the coating affect the clarity of the glass and its light transmission?
No, the coating has very little impact on the clarity and light transmission properties of the glass, and it has an additional benefit in reducing glare. This helps to make it more comfortable inside the home for reading and watching TV, and high clarity is maintained with a light transmission level of 75 %.
Q. Where do I buy ClimaGuard ® 365?
You can read more about ClimaGuard ® 365 for our integral blind units at www. morleyglass. co. uk / ClimaGuard-365 – simply choose this glass option when you request a quote. And, for non-integral blind applications such as standard IGUs, ToughGlaze can help – see what they can offer at www. toughglaze. com / ClimaGuard-365
CLEARVIEW-UK. COM NOVEMBER 2026
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