Sustainability
Lower carbon. By design.
Our AlphaRiser® system delivers up to 45% lower embodied carbon compared to traditional steel riser systems, backed by third-party verified data.
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Our Approach
Designed to reduce embodied carbon
AlphaRiser® has been developed to address one of the key drivers of construction emissions: material intensity.
By optimising structural design and integrating GRP composites with steel, we significantly reduce the volume of high-carbon materials required.
Key outcomes:
- Reduced steel dependency
- Lower system weight
- More efficient transport and installation
- No operational energy or maintenance requirements
“Working with Comtec was a very positive experience. The system saved time during construction as there was no need for a temporary riser plate, as well as reducing the effort required for coordinating between the riser grating structure and the MEP services. We would recommend to specify it in the future.”
Verified Performance
Aligned with industry standards
All sustainability data is developed and verified in line with recognised industry frameworks:
- EN 15804 +A2 (construction product EPD standard)
- ISO 14025 (environmental declarations)
- Cradle-to-gate with Options A4–B7 and Modules C1–C4 and D
This ensures compatibility with:
- BREEAM assessments
- ESG reporting requirements
- Project-level carbon modelling
Why Alphariser Performs Better
Where the savings come from
1. Material efficiency
AlphaRiser® uses significantly less material than traditional steel alternatives:
- AlphaRiser® ≈ ~40.7 kg/m² vs RiserSafe® ≈ 76.9 kg/m²
- ~47% reduction in steel demand
2. Optimised material composition
A hybrid GRP and steel design reduces reliance on high-carbon materials while maintaining structural performance.
3. Lower installation impact
Modular design reduces transport and site impacts, with minimal additional energy required for installation.
4. End-of-life advantage
High steel recycling rates and life-cycle modelling under Module D provide additional carbon savings.
View AlphaRiser EPD
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Life-Cycle Performance
Low impact across the full life cycle
- 60-year reference service life
- No maintenance, repair, or replacement required
- No operational energy or water use
This means lower carbon, fewer interventions, and more predictable life-cycle performance.
Practical Benefits for Projects
Designed for real-world construction
- Compatible with steel frame, in situ, and precast systems
- Can be installed ahead of final MEP coordination
- Reduced need for hot works
- Improved flexibility during design and installation
Outcome:
Lower risk, reduced rework, and more efficient programme delivery.
“AlphaRiser takes all the pain out of a construction subject that is always a complete pain! What you guys have done is genius!”
Technical Support
Make carbon efficiency partof your specification
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