How Secondary Glazing Helps in all Seasons | NRG Glass
Posted on 28th February 2025 at 16:46
Many people's first thoughts on secondary glazing are: enhanced insulation and reduced energy costs during winter. However, while secondary glazing insulation does help retain warmth during colder months, it works both ways.
Throughout the year, secondary glazing helps maintain a cooler indoor environment by minimising heat transfer. Beyond temperature control, it also enhances home energy efficiency, reduces outside noise and prevents draughts. Secondary glazing benefits extend far beyond winter!
In this article you’ll learn:
How secondary glazing keeps your home cool in summer.
How secondary glazing is beneficial in winter months.
The best time to install secondary glazing.
How Secondary Glazing Keeps Your Home Cool in Summer
Step 1: Sunlight and Heat Hit the Outer Window
During hot summer days, sunlight and heat directly strike the external window, causing the glass to warm up. Without secondary glazing, it’s easy for this heat to transfer into your home, making indoor spaces uncomfortably warm.
Step 2: The Air Gap Slows Heat Transfer
When secondary glazing is installed, an insulating air gap is created between the two panes of glass. Due to air being a poor conductor of heat, this gap significantly reduces the amount of heat that can pass through.
Step 3: Reduced Heat Radiation Into the Room
Without secondary glazing, heat from the outer glass would transfer into your living space, increasing indoor temperatures. The extra layer of glazing helps block and reflect some of this radiant heat.
Step 4: A More Comfortable, Energy-Efficient Home
By limiting heat transfer, secondary glazing insulation helps keep rooms cooler naturally. This reduces the need for excessive air conditioning or fans. This not only improves home energy efficiency but also lowers energy costs, making secondary glazing a smart investment for all seasons.
How Secondary Glazing is Beneficial in Winter Months
Now that we know how secondary glazing keeps your home cool in summer, it’s important to recognise its similar benefits during the winter months. Secondary glazing creates an insulating air gap that acts as a barrier against cold air, effectively reducing heat transfer.
Additionally, the reduction in drafts allows you to enjoy your living spaces without the chill. Here are some key benefits of secondary glazing in winter:
Improved Heat Retention: Keeps warm air inside, reducing reliance on heating systems.
Reduced Energy Bills: Enhances home energy efficiency, leading to lower heating costs.
Minimised Drafts: Prevents cold air infiltration, creating a more comfortable indoor space.
Condensation Control: Reduces moisture build up on windows, helping to prevent mold growth.
The Best Time to Install Secondary Glazing
The ideal time to install secondary glazing is in late summer or autumn when demand is typically lower. This timing allows you to prepare your home for the winter ahead.
At NRG, we believe the best time to have it installed was last year, the second best time is now! If you haven’t already, the sooner you install secondary glazing, the quicker you can start experiencing its advantages.
Secondary Glazing Experts at NRG Glass
At NRG Glass, we specialise in high-quality secondary glazing solutions tailored to your needs. Our expert team offers a variety of options, including fixed secondary glazing, hinged, horizontal sliding, vertical sliding, tilt and turn and lift-out systems. With years of experience, we ensure professional installation that maximises insulation and reduces noise.
Trust NRG Glass to help you create a warmer and quieter living space.
Contact us today to learn more about our secondary glazing services.
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