What is a Sash Horn Window?

For anyone outside the glazing industry, the term ‘sash horn’ will probably sound strange and almost comical. You’d be forgiven for thinking that a window does not have horns or that this is some sort of typing error.  

A sash horn window, however, is a key feature of traditional sash windows. Window horns, most commonly referred to as sash horns, were originally an integral part of sliding sash windows.

That’s why the team at Rose Collection has created this helpful blog post on sash horns, sash horn windows, and what they are. Our modern uPVC Sash windows can be created to have horns incorporated into the design. Not only can you add character to the window, but you can increase the value of your property.

Sash Window Horns History

Sash Window Horns were originally used in timber sash windows to strengthen the window’s structure. They supported the mortice and tenon joints, preventing the sashes from opening too far and becoming jammed. As the Victorian period progressed, architects wanted to use increasingly larger glass panes. Without the glazing bars, a new method of support was needed. Thus, sash horns were born.

If you look closely at any period property from the Victorian era, you should be able to see the sash horns on sash windows. They were manufactured in several shapes depending on the architectural fashions of the time and place. Some are simple curves, while others feature an ‘s’ shaped design, an inverted slope, or a more intricate combination of inset and protrusion. They are now representative of the period property windows and style and are considered essential in any heritage property renovations.

Run Through vs Stick On Sash Horns

With modern sash windows being made with uPVC, sash horns were no longer required to support the window’s structure. For period properties where maintaining the heritage aesthetic was paramount, an alternative was required. At first, uPVC window manufacturers used bolt on or stick on sash horns to replicate the original style for their sash windows. They were fairly authentic, but the joins were noticeable on close inspection.

As the uPVC sash window market developed, run-through sash horns were invented. Run through sash horns are incorporated into the window’s design to create a smooth and authentic appearance. The Rose Collection sash windows are so authentic as to be almost indistinguishable from timber. Featuring run through sash horns and a wealth of period detailing, the Ultimate Rose and Heritage Rose sliding sash windows have been approved for use in conservation areas across the UK.

Looking to Add Sash Horn to Your Windows?

If you are looking to replace your windows with our uPVC sliding sash windows with sash horns, the Rose Collection is the perfect choice for you. If you’d like to find out more about our selection of high performing sash windows, call 01234 712 657 or send us a message online through our contact form.

For those with a specific sliding sash window style in mind, you can get a quote by using our online sash builder. Here, you can design your perfect sash window, incorporating sash horns, which will be sent to your nearest Roseview installer. We also have a network of Rose Collection Approved Installers, and you can find your nearest installer!

Categories: uPVC Sash Windows