Are you a current or new homeowner looking to add or replace a new door to your property? Choosing a door can be a very stressful decision if you have no idea where to start. In this guide we explain what uPVC is, the process of manufacturing, what types of doors are made using uPVC and also the benefits.
Our team at Seal-Lite have years of experience in the supply and installation of UPVC Doors in Bristol and are on hand to answer any questions you may have.
Introduction to uPVC
uPVC stands for unplasticised Polyvinyl Chloride. In simple terms, it is a special type of tough, rigid plastic that’s widely used in building materials, particularly used for windows and doors.
It was first discovered in 1872 by a German chemist but remained impractical until the 1930s. Its breakthrough came in the 1970s when European manufacturers began using it for window and door frames, recognising its superior properties of durability, low maintenance and also its thermal efficiency.
The material itself has become a popular material used in modern homes because the material is affordable, durable and has great thermal properties, it requires low maintenance and has great security benefits. uPVC also has great environmental properties, it can be recycled and repurposed and used again which reduces any waste. This is ideal for homeowners who are environmentally friendly and tend to want to invest in materials that are better for the environment.
Manufacturing Process
uPVC door frames are manufactured using several specialised techniques to ensure durability, precision and consistency. The process involves multiple stages, from raw material preparation to final assembly.
Extrusion Process – The primary method for producing uPVC door frame profiles is extrusion. This involves melting the uPVC compound and forcing it through a shaped die to create long sections of the frame. The profiles are then rapidly cooled using a water bath to maintain their shape and structural integrity.
Reinforcement – To enhance strength and stability, uPVC profiles are often reinforced with materials such as galvanised steel. This reinforcement is inserted into pre-designed cavities within the extruded profiles. The added strength improves resistance to warping and increases security.
Cutting and Welding – Once the extruded profiles have been cooled and reinforced, they are cut to precise dimensions based on the door design. The individual frame sections are then joined using fusion welding, where the ends of the profiles are heated and pressed together to create a strong, seamless bond.
Machining and Hardware Installation – After welding, excess material from the joints is removed and the frame undergoes additional machining. This includes drilling holes for locks, hinges, and handles, as well as grooving for gaskets and glazing beads. At this stage, weather seals and multi-point locking systems are also fitted.
Glazing and Assembly – If the door includes glass panels, double or triple glazing units are inserted and secured using glazing beads. Rubber gaskets or sealants are applied to improve insulation and weather resistance.
Quality Control and Finishing – Before the door frame is ready for installation, it undergoes quality checks to ensure proper alignment, durability and surface finish. The final product may also include protective films to prevent damage during transport and installation.
This manufacturing process ensures that uPVC door frames are structurally sound, weather-resistant, and long-lasting, making them a reliable choice for residential and commercial properties.
Key Benefits
Most British homes now have uPVC doors and windows in their homes because they are practical, affordable and keep your home comfortable and secure:
They are known for their superior thermal insulation properties. This is a great benefit for homeowners who want to try and reduce their energy bills, as they will not have to use their heating system as often as they would if they had a drafty door that lets heat leave the home.
As uPVC is made from a thick rigid material, it is known to have excellent sound insulation capabilities. This is ideal for any properties in a busy area with a large volume of traffic, people or a busy public transport area.
A great benefit of uPVC doors is they require low maintenance, keeping them clean will take no time at all as they can be cleaned with a damp soapy cloth. They typically do not need frequent repairs, repainting or even any extensive servicing, making them cost-effective and convenient for homeowners.
What Are The Different Types of uPVC Doors
A great benefit of uPVC doors is they require low maintenance, keeping them clean will take no time at all as they can be cleaned with a damp soapy cloth. They typically do not need frequent repairs, repainting or even any extensive servicing, making them cost-effective and convenient for homeowners.
Front and Back Doors – a popular choice for front and back doors due to its strength and weather resistance. These doors often feature multi-point locking systems for added security and can be customised with different panel designs, glazing options and colours to match a property’s style.
Patio and Sliding Doors – are ideal for maximising space in your home because they open by gliding along a track rather than swinging open, which takes up space. They provide a clear view of the outside and can be fitted with double or triple glazing for better insulation.
French Doors – provide a classic look with the practical benefits of modern materials. They consist of two doors that open outwards or inwards, creating a wide entrance to patios or gardens. If you have a large garden and patio area and enjoy entertaining, having a lovely set of french doors leading to your entertainment space is an excellent investment opportunity. The large glass panels inside the door will also allow plenty of natural light into your home while offering good insulation.
Bi-fold Doors – uPVC bi-fold doors are designed with multiple panels that fold neatly to one side, creating an open-plan feel between indoor and outdoor spaces. They are a great option for homeowners looking to make the most of natural light and improve accessibility to gardens or patio areas, they are a popular choice for homeowners who have a large garden or terraced area as they connect a garden and a home seamlessly.