For overseas buyers, picking high-quality Aluminium Windows and Aluminium Doors starts with understanding their basic structures. Here are the key points to check before placing orders.
1. Check the Aluminium Frame
Aluminium frames are the main part of windows and doors. First, look at the thickness. For outdoor products like Aluminium Casement Windows or Aluminium Sliding Doors, the frame should be at least 1.8mm thick. For indoor use, 1.4mm is okay. Thinner frames break easily.
Next, check the width. Frames can be 80mm to 120mm wide. Wider frames (like 120mm) work better for insulation but cost more. For homes, Aluminium Double Hung Windows or Aluminium Folding Windows with 90mm–100mm frames are a good choice.
2. Look at Insulation and Seals
Good insulation saves energy. High-quality Aluminium Swing Doors and Aluminium Sliding Windows use PA66GF25 nylon strips (not cheap PVC) between the frames. These strips stop heat from escaping.
For sealing, three layers are enough: inner, outer, and middle. Avoid products claiming "10+ layers"—it’s not true. Always use neutral silicone sealant and foam around the edges to keep water out.
3. Test the Glass
Glass covers most of the window area. For Aluminium Casement Windows or Aluminium Sliding Doors, always pick tempered glass with a 3C mark. Common types include:
Double-glazed (5mm + 12mm gap + 5mm): Best for keeping heat in.
Laminated glass: Reduces noise in busy areas.
Low-E glass: Reflects sunlight to save energy. Watch out for fake thickness. Some suppliers say "5mm glass" but use 4.7mm.
4. Choose Strong Hardware
Hardware keeps windows and doors working smoothly. For Aluminium Sliding Windows or Aluminium Folding Doors, pick parts made to last:
Hinges and handles: Use stainless steel or trusted brands like Roto.
Locks and rollers: They should move easily and hold heavy weight. Cheap hardware breaks in 2–3 years and can cause safety issues.
5. Study the Design
Good design means longer product life. Examples:
Reinforced frames: Aluminium Swing Doors and Aluminium Double Hung Windows with strong inner frames prevent screws from rusting and improve waterproofing.
Corner joints: Top Aluminium Casement Windows use German pin-and-glue corners for extra strength.
Thermal breaks: The frame’s inner and outer parts should be separated by insulation strips to block heat.
6. Ask About Installation
Even the best
Aluminium Sliding Door or Aluminium Folding Window will fail if installed wrong. Confirm suppliers follow these steps:
Use rust-proof screws and nylon bolts.
Apply professional sealants like Sika for waterproofing.
Take photos during installation to check quality.
Helpful Tips
Ask suppliers for material lists and certificates.
Test samples for smooth operation and frame strength.
Compare prices per square meter, including hardware and installation.
With these basics, you can confidently select Aluminium Windows and Doors for any project. Whether you need Aluminium Sliding Doors for a hotel or Aluminium Casement Windows for homes, knowing the right specs ensures quality and customer trust.
