Q: What impact does implementing vacuum glass have on overall building construction costs?

A: Total building expenditures consist of initial construction costs and long-term O&M costs. Compared to triple-pane, double-cavity insulated glass, upgrading to vacuum glass increases the glass-specific sourcing cost by approximately 50% to 60%. However, its superior energy-saving performance dramatically lowers ongoing heating and cooling expenses.

Retrofit/Late-Stage Integration: Financial modelling shows that this incremental upfront cost can be fully recovered within 5 to 6 years through energy savings.

Early-Stage Design Integration: If vacuum glass is integrated into the project during the initial architectural design phase, the curtain walls, window frames, and doors can utilise lightweight structural designs. This optimisation caps the overall project cost increase to under 25%, shortening the payback period to approximately 2 years.