What is UPVC in UPVC Double Glazed Windows and Doors?

UPVC stands for Un-plasticised Polyvinyl Chloride, a rigid plastic widely used and tested for many years. Its properties make it ideal for double glazed windows and double glazed doors. Key advantages include:

• Resistance to rot and biological decomposition, preventing termite attraction.

• Weather resistance with low maintenance requirements.

• High impact toughness.

• Thermal efficiency, contributing to energy efficient windows.

• Stability in extreme temperatures.

• Recyclability through reshaping at high temperatures.

What is the Difference Between PVCu and UPVC in Vinyl Double Glazing?

There is no difference between PVCu and UPVC; both refer to Un-plasticised Polyvinyl Chloride. Some companies may use different abbreviations, but the composition remains the same. UPVC double glazed windows can also be referred to as PVC double glazed windows or plastic double glazed windows.

Should the Profile Be Reinforced with Steel or Aluminium?

Both steel and aluminium reinforcement are effective. Competitors may make exaggerated claims to promote one over the other. Steel is stronger but may rust if the galvanization is compromised. Aluminium is less likely to rust but is not as strong. When screws are inserted into galvanized steel, swarf removal can lead to rusting at the bottom of the frame, but this rust does not spread. We manufacture in Sydney according to builder or architect specifications, offering flexibility to meet your needs.

What is the Best Option for Double Glazing - Toughened Glass or Laminated Glass?

Both toughened and laminated glass are forms of safety glass used in double glazed windows and doors. Toughened glass breaks into small, blunt pieces, reducing injury risk, while laminated glass cracks but stays intact due to a laminate layer, providing better security and insulation. Laminated glass is thicker and heavier, affecting hinge wear. Legal requirements may dictate the use of safety glass in certain areas. Consider your specific needs when choosing between these options.

What are the Advantages and Disadvantages of PVC in Double Glazed Window Frames Over Aluminium and Wood?

Advantages:

• Excellent insulation

• Low maintenance

• Energy efficiency

• Recyclable

• Available in various colors

• Resistant to salt corrosion

• Termite-proof

• Does not warp, chip, or rust

• UV protection

• Cost-effective and environmentally friendly

Disadvantages:

• Aluminium offers a slimmer profile

• Wood provides a more traditional aesthetic

How Should I Care for My UPVC Double Glazed Windows and Doors?

Clean and oil visible moving metal parts, especially door locks and window hinges, once or twice a year. Avoid liquid detergent for seals; use cream cleanser in warm water instead. Keep sliding patio door tracks free of mud, grit, and dust. Avoid lubricating the track to prevent particle buildup.

What is the Difference Between Internal and Externally Glazed Windows?

Internally glazed windows have the glazing beads inside, enhancing security as the glass cannot be removed from outside. Externally glazed windows have the beads outside. Internally glazed PVCu systems often have welded transoms and mullions, while externally glazed systems use mechanical fixing. Internal glazing is recommended for higher buildings, simplifying installation from inside. We offer both options for our double glazed windows and doors.

Do UPVC Double Glazed Windows Melt in Australian Conditions?

Contrary to claims by some aluminium and wood window companies, UPVC double glazed windows, made of rigid plastic, perform well under Australian conditions. These windows are designed to withstand extreme climates, outperforming wood and aluminium in many aspects. Some salespeople may spread misinformation due to a lack of technical knowledge or to secure sales. Many of these companies are now developing their own UPVC windows after recognizing their superior performance. Trust the quality and durability of UPVC double glazed windows from a reputable manufacturer in Sydney.

What is Secondary (Double) Glazing?

Secondary glazing involves fitting an additional window inside your existing one, enhancing insulation and noise reduction, especially useful in noisy areas or heritage buildings where window replacement is not feasible.

Can I Purchase Double Glazed Windows for Supply Only?

Yes, we offer supply-only options for double glazed windows and provide free consultations for builders unfamiliar with PVC window frames to ensure smooth installation.

 

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