What is the embodied carbon of a glass facade per square metre?
Add the glass, usually double glazed units, and the aluminium frames and brackets. Aluminium often decides the result. Multiply each by its weight per square metre and a named factor, or use the supplier's EPD. Operational savings from better glazing are a separate figure.
Per square metre
- Glass kg × float glass factor, plus coating and lamination.
- Aluminium kg × the supplier's factor.
- Sealants, gaskets and steel fixings.
CBAM
Aluminium frames and profiles exported to the EU can fall under CBAM; check the CN code.
What Senseible does here
Senseible reads the energy invoices behind the making stage into a fingerprinted Scope 1 and 2 record, and keeps material invoices on the Scope 3 trail. Material factors come from your supplier or a named database and are labelled with their source, so the product figure can be traced line by line.
Sources: GHG Protocol Corporate Value Chain (Scope 3) Standard, European Commission, CBAM legislation and guidance
Last reviewed 2026-10-22.