Frequently Asked Questions - External Aluminium Doors
Q1: Are Bifold Doors Thermally Efficient?
A1: Yes! Modern bifold doors are highly thermally efficient:
- Timber bifolds: Engineered cores minimise heat transfer.
- Aluminium bifolds: Built with thermal breaks to prevent heat conduction.
- Glazing: Units filled with argon gas for enhanced insulation.
Q2: What is a U-Value?
A2: A measure of heat loss through a product; lower U-values indicate better insulation.
Q3: How Many Panels Will I Need?
A3: Minimum: 2 panels. For larger setups: Tracks can support up to 8 panels; beyond 20 feet, dual tracks are required.
Q4: Which Way Do Bifold Doors Fold?
A4: Bifold doors are customisable to fold left, right, or split both ways. The lead door placement depends on the configuration you choose.
Q5: Do Bifold Doors Open Inwards or Outwards?
A5: Inwards or outwards opening is based on your preference and space availability.
Q6: Do I Need to Widen My Opening to Replace French Doors?
A6: Most French door openings can accommodate bifold doors without structural changes. Check your opening width and height for compatibility.
Q7: What Security Features Should I Look For?
A7:
- Multi-point locking systems.
- Toughened glass and internal glazing beads.
- Anti-lift blocks and PAS 24 compliance.
Q8: Why Do Aluminium Frames Cost More Than uPVC?
A8: Aluminium is costlier to produce and requires precision engineering. Powder-coating and thermal breaks also increase manufacturing complexity.
Q9: What is a Traffic Door?
A9: A hinged panel in a bifold system that operates like a regular door, ideal for frequent use.
Q10: What Are Trickle Vents and Do I Need Them?
A10: Trickle vents provide background ventilation to prevent damp and improve air quality. They are required for new builds but optional for replacements unless existing doors have them.