Secondary Glazing Windows

Our expert team is here to help you select the perfect windows for your needs. Visit our showroom to experience the quality of VELFAC products, or reach out to a VELFAC distributor for guidance. Choosing between double and triple glazing depends on factors like your home’s insulation level, environmental impact, and budget.

With years of experience delivering great results, we’ll suggest the best options for your specific building, considering factors such as style, energy efficiency and budget. With our in-house manufacturing expertise and competitive prices, we will work closely with you to support you at every level. We manufacture bespoke windows and doors that are suitable for all market sectors. If you purchased your windows and doors through a distributor, please report any issues directly back to the distributor as they will need to make the claim to Rationel.
The secondary panel will have its own frame and will be sealed around the edges for better thermal efficiency. Argon gas has around a 34% lower thermal conductivity level than air because it is denser so it acts as a better insulator. When it’s used between the panes it’s even harder for glass shop front heat to escape through double-glazed windows, further improving thermal efficiency. It is also an excellent insulator of heat and is a non-flammable and ‘non-reactive’ gas.
Certified to ISO 9001, the most recognised quality management standard from The British Standards Institute. This design shields against loud noise, helping you enjoy quieter interiors, such as conference rooms or schools.

Ultra-thin from as little as 7.7mm compared to 44mm for triple glazing, it’s great for listed historic properties or new builds looking for a sleek slimmer aesthetic. Learn more about why secondary glazing provides the most effective levels of noise reduction. Secondary glazing is scientifically proven to reduce noise in your home by up to 54 decibels, giving your windows unrivalled levels of acoustic performance. Perfect for built-up areas such as homes near trainlines or under flightpaths. Once they’re ready, our installers fit your windows on a day that suits you. Our team show you how to use your new double glazing and make sure you’re happy.

This, together with concealed draught proofing routed into every edge of the casement, will ensure your casement window functions beautifully and bow window installation (https://www.blurb.com/) keep you warm and cosy too. Double glazing, while less insulated, allows more sunlight and free solar heat into the home, making it ideal for South, East or West-facing windows. Triple glazing, in contrast, retains more indoor heat and provides a stable temperature, allowing you to sit comfortably by the window regardless of outdoor conditions.

Our professional and reputable installers offer double glazing installation and repairs across South and West Yorkshire from Pontefract, Wakefield and Castleford to Doncaster and Barnsley. Though there are many kinds of glazing, the type apt for your project and purpose depends on the location of the property and climate of the region. The use of new and innovative glazing options has seen rapid, unprecedented growth in recent years. Designers are experimenting with the many options for decor and its practical benefits.
Combining glass technologies and techniques to create bespoke glass boxes and structures. Top hung sashAn opening window either hung below a transom bar or a full length opening window not to be confused with a fanlight which is a small opening window. Roof VentilatorAn opening window in the roof of a conservatory to allow ventilation. External CillA special moulded section at the bottom of a window or door that allows the rainwater to run off and not run down the brickwork of the base wall Making Safe Glazing it damp. Edwardian StyleUsually a square or rectangular conservatory design with an apex roof structure. Single-hungDouble-hung styled window in which the top sash is inoperable.
Inside the double glazed sealed unit, the contained air also holds a low level of moisture that could form on the glass if the temperature difference should change. Double glazing reduces noise by absorbing some of the energy and slowing down the vibration frequency as it transfers through the glass and the layer of Argon gas. When the sound wave passes through the other side of the window, the sound wave is slightly diminished and the noise a little quieter.
Having outdoor living space is an important consideration for modern homes. With space often at a premium, especially in urban locations, an accessible roof terrace will allow you to make the most of an otherwise unused area. We have installed standard and bespoke roof deck glass rooflights all over the World.