LEED
World's leading green building certification framework
EN 1090
EU standard for execution and CE marking of steel/aluminium structures
Quick Verdict
LEED offers voluntary green building certification for global sustainability leadership, while EN 1090 mandates CE marking for EU structural steel/aluminium fabrication compliance. Companies pursue LEED for ESG prestige and efficiency; EN 1090 for legal market access.
LEED
Leadership in Energy and Environmental Design
Key Features
- Third-party verified certification by GBCI
- 110-point system with weighted categories
- Mandatory prerequisites plus elective credits
- Tailored rating systems by project type
- Recertification for continuous performance improvement
EN 1090
EN 1090 Execution of steel and aluminium structures
Key Features
- Factory Production Control (FPC) certification by Notified Body
- Execution Classes (EXC1-4) for risk-based requirements scaling
- CE marking enabling EU market access for structural components
- Welding quality management aligned with ISO 3834
- Material traceability and NDT inspection regimes
Detailed Analysis
A comprehensive look at the specific requirements, scope, and impact of each standard.
LEED Details
What It Is
LEED (Leadership in Energy and Environmental Design) is a globally recognized green building rating system developed by USGBC. It is a voluntary certification framework for sustainable design, construction, operations, and communities. Primary purpose: promote healthy, efficient buildings reducing environmental impacts via performance-based credits and prerequisites across project lifecycles.
Key Components
- Core categories: Sustainable Sites, Water Efficiency, Energy & Atmosphere (highest weighted), Materials & Resources, Indoor Environmental Quality, Innovation, Regional Priority.
- Up to 110 points total; prerequisites mandatory, credits elective.
- Built on holistic principles; multiple rating systems (BD+C, ID+C, O+M).
- Third-party verification by GBCI; certification tiers: Certified (40+), Silver, Gold, Platinum.
Why Organizations Use It
- Drives cost savings (energy/water reductions), asset value uplift, ESG reporting.
- Mitigates risks (climate, regulatory); enhances tenant appeal, productivity.
- Builds reputation as sustainability leader; accesses incentives.
Implementation Overview
- Phased: gap analysis, scorecard, design integration, documentation, GBCI review.
- Applies to all building types/phases globally; requires commissioning, M&V.
- Timelines align with projects; O+M enables recertification.
EN 1090 Details
What It Is
EN 1090 is a harmonized European standard family (EN 1090-1, -2, -3) under the Construction Products Regulation (CPR). It governs the execution, fabrication, assembly, and conformity assessment of structural steel and aluminium components/kits for construction works. Its risk-based approach uses Execution Classes (EXC1-EXC4) to scale requirements by consequence, service, and production categories.
Key Components
- **EN 1090-1Conformity assessment, Factory Production Control (FPC), Declaration of Performance (DoP), CE marking.
- **EN 1090-2/-3Technical rules for steel/aluminium (materials, welding, tolerances, corrosion protection, inspection/NDT).
- Built on ISO 3834 for welding; certified FPC via Notified Bodies with AVCP systems.
Why Organizations Use It
- Mandatory for CE marking and EU market access for load-bearing components.
- Reduces liability, ensures traceability, minimizes rework; builds trust with stakeholders.
- Enables high-risk projects (EXC3/4), competitive bidding.
Implementation Overview
Phased: gap analysis, FPC design, personnel training (welding coordinator), ITT/ITC, NB certification, surveillance. Applies to fabricators in EU/EEA; 3-12 months typical, scales with EXC.
Key Differences
| Aspect | LEED | EN 1090 |
|---|---|---|
| Scope | Green building performance across energy, water, IEQ, sites | Execution of steel/aluminium structural components, conformity |
| Industry | Global building owners, developers, all construction types | EU steel/aluminium fabricators, structural construction only |
| Nature | Voluntary third-party certification rating system | Mandatory harmonized standard for CE marking under CPR |
| Testing | GBCI reviews documentation, scorecards for certification levels | Notified Body certifies FPC, initial testing, ongoing surveillance |
| Penalties | No certification, lost market differentiation, no legal fines | Market exclusion, fines, certificate suspension, legal liability |
Scope
Industry
Nature
Testing
Penalties
Frequently Asked Questions
Common questions about LEED and EN 1090
LEED FAQ
EN 1090 FAQ
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