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This Is The Ugly Facts About Double Glazing Door Lock
Double Glazing Door Locks

Many homeowners choose double-glazed windows and doors due to their energy efficiency, insulation and sound reduction. However, they can also be an effective deterrent to burglars.

Make sure that the windows you have double-glazed have anti-jemmy hinges to increase their security. These specialised hardware components make it extremely difficult to pry open window sashes.

Multi-point locking

Multipoint door locks are among the most secure security devices you can put in at home or at work. They are almost impossible to pick or break, and they can be an ideal complement to any security system. They can also improve your energy efficiency by reducing drafts and improving the seal around the door frame.

Multi-point locking systems are composed of a deadbolt, live bolt, and hook bolts above and beneath the latch. They also include flush bolts that lock into the head of the door and the sill. They are usually extended across the entire length of the door, at least. double glazing window locks replace are known as "full-width", in commercial contexts. They are used to secure the entire opening of the door.

The majority of uPVC doors have multi-point locking, however some timber doors are also offered with this level of security. This type of lock offers a much higher security level than standard locks and will often be included in an approved by the police Secured by Design initiative for new construction homes.

If a uPVC door that has a multi-point lock is shut the handle on the outside turns the latch bolt. The inside handle can be locked by turning the thumbturn inside when the door handle is raised or using the lock key. You should always use keys to lock your door once it is closed, since trying to use a lever or deadbolt bolt with a handle could damage the lock as well as the hinges.

If your uPVC multi-point lock isn't functioning correctly it could be because it's misaligned with the door frame. You can test this by placing a spirit-level over the top of the doors and observing for gaps at the miter joints.

It is worth asking your double glazing expert whether there's an opening and how to close it. They'll be able to repair the lock for you or install a new one. They'll be able to determine whether the issue is due to damage to the frame or the lock unit itself. In these instances, the technician will be able repair or replace the multipoint lock in order to get it working again.

Espagnolette locks

Espagnolette locks are one of the most commonly used window locking mechanisms used in modern uPVC double glazed windows. The flat strip shape that changes when you turn the handle is a great method to identify them. They work in tandem with secure multi-point locks positioned around the frame to firmly lock and unlock your windows. If you are looking to upgrade your uPVC window, espagnolette handles can be utilized for new constructions or renovations. They are available in a range of period and contemporary styles and come in a variety of bar lengths, backset options and mushrooms cam heights that come with a choice of profile keepers to fit most applications.

While they are a popular choice however, espagnolette locks have also been criticized as providing inadequate security for French doors. A single locking point located in the middle of the door is easily accessed. Additionally, it is fairly easy for thieves to gain access to your French doors by pushing the handle to either the left or right. These doors are often the main entry points into your home, and should be secured to limit the chance of intrusion from outside.

In spite of their name, espagnolette locks aren't bolts they are actually a one-piece mechanism that can be mounted externally on the edge of your French doors or inside a frame for a casement window. The mechanism is operated by a handle, and consists of a rod with hooks at the head and at the sill that are inserted into sockets on the window frame. When the handle is turned, the rod is moved between up and down, and the hooks are locked into their receivers to secure and unlock your windows.

They are a great option for those who wish to enhance the security of French doors without compromising on the design and aesthetics of the door. The handles are available in different designs and can be master-keyed for extra peace of mind.

Similar to cockspur handles the espagnolette handle designs are available both cranked and inline models to suit the orientation of your window. Inline versions turn in the same direction as the original. Cranked versions come in both left- and right-handed options.

Laminated glass

Laminated glass is commonly used for windows as it is extremely difficult to break. It is also safer than standard safety glass as it is fused together into one piece instead of breaking into sharp fragments. This makes it ideal for residential and commercial buildings.

Lamination is the process of joining two pieces flat glass with an interlayer of plastic. The entire piece is heated before being press-pressed to create a strong enough to use as a door or window. The laminated glass that is created is five times stronger and 100 times stiffer than glass that has been tempered. It also withstands more intense impacts and is resistant to weathering.

This type of glass is perfect for buildings that must perform well, such as enhanced security (impact-resistant glass) and UV protection or noise reduction. Laminated glass can be combined with high-performance coatings to enhance both thermal insulation and solar control. It is available in a variety of options to suit your budget and project.

Unlike tempered glass, laminated glass can be cut after production, and be safe to use. It is less likely to break if cut from the side of the glass, rather than the edge. This makes it a great option for glass that does not open or close, such as cellar windows.

It is also used in high-rise buildings in urban areas because it can reduce the volume of noise that is transmitted from the street to the interior of the. The Saflex PVB layer within the laminated glasses also assists to block sun's harmful ultraviolet radiation. This helps prevent discoloration of fabrics, furniture and other items.


Although laminated glazing is typically more expensive than glass that is tempered, it has numerous advantages that could save you money over the long term. It's also more durable, resistant to abrasion and scratches, and can be made according to your specific requirements. It is also less susceptible to heat damage, making it a great option for coastal areas or high-rise structures. In fact, some building codes require that all exterior doors and some interior windows be made from laminated glass.

Friction hinges

Friction hinges are designed to hold and support the position of doors or flaps, panels and windows. They can also impede the movement of other hinges and stop hard slamming as well as accidental closing and opening. They are available in various sizes and shapes. They can have different torques which are the forces that determine how long hinges can remain open or closed.

Aluminum is a great material for friction hinges because of its durability, corrosion resistance, and high strength-toweight ratio. It is also light and easy to work with. It is also able to be made into a variety of finishes and is easy to set up and repair. Another popular material for friction hinges is brass. Brass is an alloy made of zinc and copper. It is a natural resistance to corrosion. It is also stronger and more durable than steel, but it is more expensive.

The friction hinges used in uPVC door systems that have double glazing can be customized according to the application. These adjustments could include the amount of damping, lubricant viscosity and the degree of tolerance between components. They may also include the environmental conditions in which the hinge will be utilized. These variables can affect the dynamic torque of the hinge, and it is important to keep track of this metric in critical applications.

There are many different types of friction hinges, including one-way and detent. Detent friction hinges do not have torque in the reverse direction. Other variations include disc, curl, and pipe friction. Each type of friction hinge is distinct and comes with its own set of properties, which make it more or less suitable for certain situations.

The hinges with friction are often called "free stop" hinges because they permit a lid or door to remain at a predetermined angle after the force is removed. This helps prevent injuries through accidental closing. This type hinge is ideal for medical, rugged or dangerous areas. The hinges are able to be designed to have different degrees of free play and are able to work in a range of angles.

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