Understanding Profile Selection
Choosing the right uPVC profile is critical for performance, energy efficiency, and aesthetics. The key factors to consider are the clear opening span, expected wind load, and the desired window operation type.
Sliding vs Casement
Sliding profiles (50mm, 80mm, 90mm) are ideal for wider spans and balcony applications where outward swing is not possible. Casement profiles (60mm) offer superior air-tightness and are preferred for bedrooms and living spaces.
Profile Depth & Chambers
Deeper profiles with more chambers provide better thermal insulation. The 80mm series offers a 3-chamber design that significantly reduces heat transfer compared to standard 60mm profiles.
Always consult a GBT technical advisor to confirm the right series for your project specifications.