Lifecycle Carbon Reduction Framework — Annexure

Consolidated Data Tables, Sensitivity Workings, Material Reference Data

Annexure to the White Paper: Notional Decarbonization Assessment for a 50,000 sq ft Commercial Interior Project

These tables form part of the original work of Amit Garg and IǪUBX Private Limited and must be read in conjunction with the accompanying white paper; all rights are reserved. This publication is an original work of Amit Garg and IǪUBX Private Limited; all rights in its text, frameworks, analyses, calculations, diagrams and presentation are reserved. Expanded clause is given in the end of the document

---

Annexure A: Consolidated Carbon Impact Tables

Initial Embodied Carbon — All Systems

All values in tCO2e unless stated otherwise.

#	System	Quantity	Conv. Unit Carbon	Conv. Initial (tCO2e)	IQUBX Unit Carbon	IQUBX Initial (tCO2e)	Initial Saving (tCO2e)
1	Glass partitions	2,044 sqm	58.0 kg/sqm	118.6	50.5 kg/sqm	103.2	15.4
2	Solid partitions	1,672 sqm	95.0 kg/sqm	158.8	72.0 kg/sqm	120.4	38.4
3	SkyHatch ceiling	Package	Package	18.0	Package	22.0	-4.0
4	Workstations	350 nos	0.18 t/unit	63.0	0.12 t/unit	42.0	21.0
5	Baffle ceilings	743 sqm	25.0 kg/sqm	18.6	18.0 kg/sqm	13.4	5.2
6	Doors and frames	120 nos	0.35 t/unit	42.0	0.25 t/unit	30.0	12.0
7	Pods	10 nos	3.0 t/unit	30.0	2.3 t/unit	23.0	7.0
8	Feature panelling	557 sqm	55.0 kg/sqm	30.6	45.0 kg/sqm	25.1	5.5
	Total			479.6		379.1	100.5

Whole Interior Carbon Impact Summary

Parameter	Value
Total interior initial embodied carbon (at 500 kgCO2e/sqm)	2,322.0 tCO2e

 

Assessed systems as share of total	21%
Conventional 10-year total	2,694.8 tCO2e
IQUBX 10-year total	2,304.2 tCO2e
Absolute saving	390.6 tCO2e
% reduction in total 10-year interior lifecycle carbon	14.5%
% avoided carbon relative to initial interior embodied carbon	16.8%

Composition of Total Saving

Component	tCO2e	Share
Initial embodied carbon saving	100.5	25.7%
Lifecycle avoided carbon saving	290.1	74.3%
Total	390.6	100%

• Lifecycle Replacement Factors — All Systems

All lifecycle add-on values in tCO2e. Replacement factor = lifecycle add-on carbon as percentage of initial carbon.

 

#	System	Conv. Replacement Factor	Conv. Lifecycle Add-On (tCO2e)	IQUBX Replacement Factor	IQUBX Lifecycle Add-On (tCO2e)	Lifecycle Saving (tCO2e)
1	Glass partitions	75%	88.9	22%	22.7	66.2
2	Solid partitions	95%	150.9	25%	30.1	120.8
3	SkyHatch ceiling	250%	45.0	55%	12.0	33.0
4	Workstations	55%	34.7	15%	6.3	28.4
5	Baffle ceilings	35%	6.5	10%	1.3	5.2
6	Doors and frames	25%	10.5	10%	3.0	7.5
7	Pods	70%	21.0	15%	3.5	17.5
8	Feature panelling	50%	15.3	15%	3.8	11.5
	Total		372.8		82.7	290.1

Lifecycle add-on carbon reduction: 290.1 / 372.8 = 77.8%

Total 10-Year Carbon — All Systems (Detailed)

All values in tCO2e.

#	System	Conv. Initial	Conv. Lifecycle	Conv. 10-yr Total	IQUBX Initial	IQUBX Lifecycle	IQUBX 10- yr Total	System Saving	% Red.
1	Glass partitions	118.6	88.9	207.5	103.2	22.7	125.9	81.6	39%
2	Solid partitions	158.8	150.9	309.7	120.4	30.1	150.5	159.2	51%
3	SkyHatch ceiling	18.0	45.0	63.0	22.0	12.0	34.0	29.0	46%
4	Workstations	63.0	34.7	97.7	42.0	6.3	48.3	49.4	51%

5	Baffle ceilings	18.6	6.5	25.1	13.4	1.3	14.7	10.4	41%
6	Doors and frames	42.0	10.5	52.5	30.0	3.0	33.0	19.5	37%
7	Pods	30.0	21.0	51.0	23.0	3.5	26.5	24.5	48%
8	Feature panelling	30.6	15.3	45.9	25.1	3.8	28.9	17.0	37%
	Total	479.6	372.8	852.4	379.1	82.7	461.8	390.6	45.8%

---

Annexure B: Sensitivity Analysis — Detailed Workings

Lifecycle Replacement Factor Sensitivity (±25%)

Scenario	Conv. 10-yr Total	IQUBX 10-yr Total	Total Saving	% Reduction
Base case	852.4	461.8	390.6	45.8%
Conservative (-25% conv. factors)	759.5	441.1	318.4	41.9%
Favourable (+25% conv. factors)	945.3	482.5	462.8	49.0%

Even under the most conservative scenario, the total saving remains above 318 tCO2e with a reduction above 41%. The directional conclusion holds robustly across the full range.

Glass Reuse Rate Sensitivity

Glass Reuse Rate	Glass Partition Saving	Impact on Total Saving
75% (base case)	81.6 tCO2e	390.6 tCO2e
60%	72.8 tCO2e	381.8 tCO2e
50%	66.9 tCO2e	375.9 tCO2e

Recycled Aluminium Content Sensitivity

Recycled Content	Carbon Reduction Factor	Initial Saving	Total Saving
75% (base)	50% frame reduction	100.5 tCO2e	390.6 tCO2e
50% (conservative)	33% frame reduction	78.2 tCO2e	368.3 tCO2e

Solid Partition Lifecycle Factor Sensitivity

Conv. Lifecycle Factor	Solid Partition Saving	Impact on Total Saving
120% (higher churn)	178.7 tCO2e	410.1 tCO2e
95% (base case)	159.2 tCO2e	390.6 tCO2e
70% (reduced)	119.5 tCO2e	350.9 tCO2e