External envelope
The external envelope, including façades, cladding, and weatherproofing, shapes both appearance and performance. These materials vary widely in composition and emissions intensity. Comparing options helps balance thermal efficiency goals with carbon transparency.

VELFAC Ribo wood – Top-guided window
VELFAC
56.70
Denmark

1034 System PVDF SSG
Overgaard Ltd.
278.46
Hong Kong

634 System Anodize Captured
Overgaard Ltd.
218.46
Hong Kong

STRUGAL S53RP+ (Anodized)
STRUGAL
116.00
Spain

STRUGAL S53RP+ (Coated)
STRUGAL
113.00
Spain

1034 System PVDF Captured
Overgaard Ltd.
336.92
Hong Kong

634 System PVDF Captured
Overgaard Ltd.
215.38
Hong Kong

Extruded aluminium profiles (worst-case: thermal break)
Guangdong Galuminium Extrusion Co., Ltd
29.00
China

Hicem Fibre Cement Board 4 mm
Ramco Industries Ltd.
3.51
India

STRUGAL S52CRI (Coated)
STRUGAL
83.40
Spain

Hyperion® Aluminium Profiles (average across all listed products)
EnviroBuild Materials Ltd.
22.40
United Kingdom

Uncoated Aluminium Profile
Altaiseer Aluminium Company
15.60
Saudi Arabia

Uncoated Aluminum Profile
Kurtoğlu Aluminium
5.17
Turkey

Hicem Fibre Cement Board 12 mm
Ramco Industries Ltd.
10.50
India

634 System PVDF SSG
Overgaard Ltd.
178.46
Hong Kong

126 T Punched Windows PVDF
Overgaard Ltd.
285.00
Hong Kong

M60 Curtain wall aluminium system
ALUMIL S.A.
139.00
Greece

Hilux Calcium Silicate Board 10 mm
Ramco Industries Ltd.
8.48
India

Hicem Fibre Cement Board 16 mm
Ramco Industries Ltd.
14.00
India

STRUGAL S82RP (Coated)
STRUGAL
149.00
Spain

STRUGAL S74RP (Anodized)
STRUGAL
140.00
Spain

STRUGAL S74RP (Coated)
STRUGAL
137.00
Spain

STRUGAL S64RP (Anodized)
STRUGAL
128.00
Spain

STRUGAL S64RP (Coated)
STRUGAL
125.00
Spain

STRUGAL S82RP (Anodized)
STRUGAL
152.00
Spain

Cladding Sheet - 4.5mm
CSR Building Products Limited
5.66
Australia

COLORBOND® steel 0.30mm BMT
BlueScope Steel Ltd
9.84
Australia

Cladding Sheet - 6mm
CSR Building Products Limited
6.38
Australia

ZINCALUME® steel 1.20mm BMT
BlueScope Steel Ltd
26.90
Australia

Hilux Calcium Silicate Board 8 mm
Ramco Industries Ltd.
6.78
India

VELFAC Ribo wood – Top-guided window

1034 System PVDF SSG

634 System Anodize Captured

STRUGAL S53RP+ (Anodized)

STRUGAL S53RP+ (Coated)

1034 System PVDF Captured

634 System PVDF Captured

Extruded aluminium profiles (worst-case: thermal break)

Hicem Fibre Cement Board 4 mm

STRUGAL S52CRI (Coated)

Hyperion® Aluminium Profiles (average across all listed products)

Uncoated Aluminium Profile

Uncoated Aluminum Profile

Hicem Fibre Cement Board 12 mm

634 System PVDF SSG

126 T Punched Windows PVDF

M60 Curtain wall aluminium system

Hilux Calcium Silicate Board 10 mm

Hicem Fibre Cement Board 16 mm

STRUGAL S82RP (Coated)

STRUGAL S74RP (Anodized)

STRUGAL S74RP (Coated)

STRUGAL S64RP (Anodized)

STRUGAL S64RP (Coated)

STRUGAL S82RP (Anodized)

Cladding Sheet - 4.5mm

COLORBOND® steel 0.30mm BMT

Cladding Sheet - 6mm

ZINCALUME® steel 1.20mm BMT

Hilux Calcium Silicate Board 8 mm
Filter & sort
Footprint
kg CO₂e/unit
–
kg CO₂e/unit
Length
mm
–
mm
Width
mm
–
mm