This code of practice provides guidelines for the construction and installation of aluminium alloy doors, windows, and ventilators. It covers the selection of materials like aluminium extrusions, glass, and hardware, fabrication requirements, glazing methods, and installation procedures to ensure weather-tightness and structural stability.
Provides recommendations for the construction, assembly, and installation of aluminium doors, windows and ventilators.
Quick Reference Values
Minimum average thickness of anodic coating for exterior use15 microns
Minimum diameter of weep holes5 mm
Permissible tolerance on straightness of sections1.2 mm per metre length
Maximum permissible air leakage rate (standard conditions)50 m³/h per metre of opening joint
Maximum overall size tolerance (width/height)± 1.5 mm
Practical Notes
Ensure weep holes are provided in the sill/bottom track and are not clogged during installation to allow proper drainage of water.
Pay close attention to the selection of fasteners and their contact with aluminium to prevent galvanic corrosion, especially in coastal areas.
The gap between the window/door frame and the structural opening must be properly sealed with appropriate sealants to achieve desired water and air tightness.