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A Complete Guide to Double Glazed Windows and Doors

Read our comprehensive guide below to find out more information about the benefits of investing in double glazed windows and doors.

What is Double Glazing?

What Is It and How Does It Work?

Double glazing consists of two layers of glass separated by a spacer, creating an insulating air or gas-filled space. This reduces heat transfer through the building envelope, improving thermal performance. The spacer, often made from aluminium or a low-conductivity material, maintains the gap and can contain a desiccant to prevent condensation within the sealed glass unit.
The space between the panes is filled with a gas called argon, argon has a low thermal conductivity meaning it slows down the transfer of heat through the window, helping to keep homes warmer in the winter and cooler in the summer.

The Materials Used in Double Glazed Windows and Doors

There are various options to choose from when deciding what type of window or door you would like for your property, the main frame materials that homeowners select from are uPVC, aluminium, timber or composite.

The glass types range from toughened glass, float, laminated, self cleaning or even acoustic glass. The type of glass a homeowner will decide to choose from will usually depend on what type of house they live in, the area they live in and what would be most suited to their individual needs for their home.

What is The Difference Between Double and Triple Glazing

The main difference between both is that double glazing contains a double pane of glass with a single gas filled space in between the first and second pane of glass – hence the name double glazing. Triple glazing contains a triple pane of glass with two gas filled spaces between the panels.

casement window with windows on big house

What are the Benefits of Having Them Installed in Your Home

How Does it Helps with Energy Efficiency?

Double glazing works by creating a layer of insulation between the panes of glass inside a window or a door in your home. This reduces heat transfer and drafts inside your property, leaving a comfortable and stable temperature and reducing the need to use a central heating or cooling system.

Noise Reduction and Soundproofing

Double glazing helps to reduce noise by creating a barrier inside the panels of gas filled glass, this clever concept absorbs noise and helps remove sound vibrations which then stops noise from entering your home.
This is particularly beneficial for homes that are in busy built up areas with heavy traffic, regular public transport areas and also busy areas with large volumes of people using the area to commute.

The Role of Double Glazing in Home Security

Quality double glazing improves the security of the home as the panes of glass are built to deter people from breaking in, they are built with extra layers of glass which make it more difficult for an intruder to break through.
They are built with increased strengthening materials such as laminated glass or toughened glass and are built into reinforced frames, further strengthening the overall structure of the window or door.
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The Role of Double Glazing in Home Security

A Guide to Different Window Styles and Their Uses

Windows come in a variety of styles, materials and shapes and colours and materials, the main styles of windows are: Casement, Flush Sash, Sliding Sash, Tilt and Turn and Bow and Bay windows. Depending on the type of property, the window style will differ to match the aesthetic of the home.
Casement windows open fully and are hinged on one side, they swing open like a door and offer excellent ventilation and unobstructed views. They are often used in kitchens, bathrooms, or areas where air flow needs to be maximised.
Flush sash windows sit flush to the outer frame, this creates a smooth and even surface. This design offers a sleek and traditional look for your home, they often resemble classic timber windows but are made from upvc or aluminium. They are often used in Georgian, Edwardian and Victorian properties to maintain the historical look and feel of a period home.
Sliding sash windows have panels or ‘sashes’ that slide up and down or sometimes side to side rather than the traditional opening outward style. They usually have multiple panes of glass separated by thin bars, giving them a timeless, elegant look. Traditional styles have weights and pulleys to stay open, but modern versions often have smooth running spring mechanisms installed to open and close them.
Tilt and turn windows are modern, versatile windows that can open in two ways: tilting inwards from the top for ventilation or swinging open like a door for easy cleaning and maximum airflow. This dual-function design makes them practical, secure and great for energy efficiency. They are popular in modern homes, apartments and modern renovations because of their sleek design and practicality.

Comparing uPVC, Aluminium and Timber Frames

Choosing the right window frame material depends on your home’s style, budget, and maintenance preferences. uPVC frames are a popular choice as they’re low-maintenance and provide good insulation. Aluminium frames have a sleek, modern look and are strong while still being lightweight. Timber frames offer a classic, natural feel that suits traditional homes but do need a bit more upkeep.
Each option has its own positives and negatives depending on what the customer wants and needs for their home, it is worth considering what works best for your home and lifestyle.
Having the option to view doors and windows first hand, can really help a homeowner make an informed decision. Visiting a showroom is a great way to check out the different styles and variety of products on offer and it also offers the customer an opportunity to speak directly to a knowledgeable team member for advice and recommendations.

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Homeglaze have been a trusted home improvement specialist since 2011. Our ethos is no nonsense pricing with absolutely no pressure to buy.