Half the mass of glass at the same thickness means less steel,
less aluminium, fewer truckloads — and a smaller carbon bill before the building opens.
Embodied carbon hides in the frame
When a project compares glazing materials, the argument usually stops at U-value. But a building’s upfront carbon is
carried by what holds the glazing up: the mullions, the purlins, the secondary steel, the foundations that receive all of it. A
heavier panel does not just cost more to move — it recruits an entire structural system into the carbon ledger.
Solid polycarbonate sheet at 6 mm weighs roughly 7 kg/m², against approximately 15 kg/m² for glass of the same
thickness. At equal performance the comparison widens further, because PC reaches comparable impact resistance at
lower thickness. Lighter panels mean smaller profiles, wider spans between supports, and — in retrofit work — the option
to reuse the existing frame instead of replacing it.
Transport is part of the footprint
Sheets travel by the tonne. Every kilogram removed from the envelope is a kilogram not shipped, not lifted, not craned.
For export projects, where the panel may cross an ocean before it is installed, payload efficiency converts directly into
freight emissions per square metre of finished roof. Denser materials cannot make that trade — they can only compensate
for it.
Where solid sheet earns its place
Canopies and walkway roofs · architectural glazing and façade infill · balcony and balustrade panels · machine guards and
acoustic screens · signage and light boxes · protective barriers in public and industrial spaces · skylight and roof-light
glazing where impact resistance is mandatory.
Highlights
Roughly half the mass of glass at equal thickness — less secondary steel, smaller profiles.
Higher payload efficiency per container and per truck, which matters most on export routes.
Comparable impact performance at lower thickness than glass, so less material per square metre.
Reusable with existing frames in retrofit, avoiding the carbon cost of a new support system.
Send SINHAI your span, wind load and fixing detail; we will return a thickness and weight comparison against your
current glazing specification.
Company Website：https://www.xhplasticsheet.com
Post time: Nov-13-2026