| Coloring method | Body-tinted glass, laminated colored interlayer, ceramic-frit glass, or surface-coated glass | Use body-tinted glass for consistent large-area color; use laminated interlayers for layered colors and safety; use ceramic frit for patterns and solar-control effects | Confirm the selected process is available in the required thickness, size, processing method, and destination market |
| Visible light transmission | Typical colored-glass products may range from approximately 5% to 75% visible light transmission, depending on color, thickness, coating, and construction | Choose lower transmission for glare reduction and privacy; choose higher transmission where daylight and interior brightness are priorities | Request photometric data for the complete glass build-up rather than relying only on a color sample |
| Glass thickness | Common monolithic sheet thicknesses include about 4, 5, 6, 8, 10, and 12 mm; laminated and insulated assemblies are specified by total make-up | Select thickness according to span, wind load, impact risk, support conditions, and local structural requirements | A local structural engineer should verify the final thickness because design loads and code requirements vary by location |
| Safety configuration | Heat-strengthened, fully tempered, laminated, or laminated-tempered glass | Use laminated glass where retention after breakage is important; use tempered glass where thermal and mechanical strength are required; combine both where the design requires higher safety performance | Check applicable regional requirements, such as EN 12150, EN 14449, ISO 12543, ASTM C1048, or other project-specified standards |
| Solar and thermal performance | Solar heat gain depends on visible transmission, solar transmission, reflectance, absorption, glass thickness, coatings, and air-gap design | For hot climates, combine suitable color selection with solar-control coating or frit when permitted by the design; for cold climates, prioritize the complete U-value and daylight balance | Evaluate the complete façade or window assembly, not the colored sheet alone |
| Visual color consistency | Color can vary with glass thickness, viewing angle, daylight conditions, batch, and neighboring materials | Approve a physical production sample or mock-up before mass production, especially for curtain walls and uninterrupted elevations | Define acceptable color tolerance, viewing distance, lighting conditions, and inspection procedure in the project documents |
| Fabrication compatibility | Possible processes include cutting, edgework, drilling, CNC shaping, tempering, laminating, insulating, and screen printing | Confirm fabrication before finalizing the color because some coatings and laminated constructions may restrict later processing | Coordinate drawings, tolerances, hole positions, edge details, and packing requirements across all project locations |
| Climate and durability | Consider humidity, salt exposure, ultraviolet radiation, temperature cycling, windborne particles, and thermal stress | Use a tested and appropriately processed glass assembly for coastal, high-altitude, hot, cold, or high-UV environments | Specify sealants, interlayers, edge protection, and installation methods that are compatible with the local climate |
| Size and logistics | Large sheets reduce visible joints but increase weight, handling difficulty, breakage risk, and transport constraints | Balance panel size with container limits, lifting equipment, access routes, installation sequence, and replacement requirements | Confirm maximum feasible dimensions and packaging specifications before issuing final shop drawings |
| Documentation and compliance | Typical documents include product data sheets, safety test reports, optical data, heat-treatment records, quality inspection records, and packing lists | Select a specification that clearly identifies glass type, thickness, color reference, safety treatment, performance values, and inspection criteria | Align documentation with the destination country, project consultant, customs process, and applicable building regulations |