SAMPLE SPECIFICATION CLAUSE (fictional)
Clause 08.4.2 - Aluminium sliding windows
Frames: extruded aluminium, minimum wall thickness 1.4 mm, powder coated, minimum 60 microns, colour RAL 9016.
Glazing: 6 mm toughened clear glass, double-glazed unit 6-12-6 for all bedrooms.
Air permeability: tested to at least Class 3. Water tightness: minimum 450 Pa.
Hardware: stainless steel rollers, multipoint lock. Warranty: 10 years on frame finish.

SAMPLE PRODUCT DATA SHEET (fictional manufacturer "Alumax Series S60")
Frame: extruded aluminium 6063-T6, wall thickness 1.2 mm.
Finish: powder coating 60-80 microns, standard colours include RAL 9016.
Glazing options: single 6 mm toughened or DGU 5-12-5.
Performance: air permeability Class 3; water tightness 300 Pa.
Hardware: nylon rollers (stainless steel optional), single-point lock.
Warranty: 5 years on finish, 10 years on profiles.
