klimaaktiv Energy Standards & Steel Frame | Passive Steel Homes
An Austrian building quality assessment covering energy alongside location, materials, health and comfort. It is separate from mandatory OIB requirements.
klimaaktiv in Steel Frame Construction
Key Questions for Project Evaluation
Which rating level is requested? Can the project team provide the location, product and quality documentation for that level?
Applicable Countries & Adoption for klimaaktiv
European countries where this standard serves as a statutory code, subsidy benchmark, or accredited green label:
Performance Benchmarks & Criteria for klimaaktiv
Voluntary building quality assessment| Performance Parameter | Benchmark Target | Steel Envelope Methodology |
|---|---|---|
| 1000-Point Rating System | Bronze: 700 | Silver: 750 | Gold: 900 Points | Grade-A lightweight steel framing, top thermal wrap & comfort |
| Space Heating Demand (HWB) | ≤ 15 – 25 kWh/m²a | Substantially exceeds OIB-6 guideline with continuous rockwool |
| Ecological Material Benchmark | Exclusion of PVC, HFCs and biocides | 100% inorganic, mold-proof & zero-emission galvanized steel |
| Indoor Air Quality (VOC) | TVOC ≤ 1000 µg/m³, Formaldehit ≤ 60 µg/m³ | Mineral insulation & continuous F7-filtered mechanical fresh air |
| Airtightness (n50) | Silber: ≤ 1.00 h⁻¹ | Gold: ≤ 0.60 h⁻¹ | On-site Blower Door test confirms leak-free frame execution |
Delivery Packages Compatibility for klimaaktiv
Required procurement scope and on-site interfaces to secure compliance with this standard:
P1 Structural Frame
Supplies precision CFS steel frame and certified Eurocode statics dossier. Thermal insulation, airtight membranes, and high-performance fenestration must be procured and executed by your local site contractor.
P2 Frame + Cavity Insulation
Includes structural steel studs, cavity rockwool infill and exterior structural sheathing. Meeting the stringent benchmark U-values of this standard requires additional continuous exterior rockwool wrap on site.
P3 Weather-Tight Envelope
The SWEET SPOT for Passive House & statutory low-energy standards. Features continuous exterior insulation wrap (U <= 0.11-0.14 W/m²K), certified triple-glazed fenestration, and airtight junction details securing n50 <= 0.60 h⁻¹.
P4 Complete Turnkey Kit
Includes full P3 thermal envelope plus certified 85%+ MVHR ventilation unit, heat pump readiness, interior drywall lining assemblies, and sanitary/electrical rough-in components for 100% turnkey compliance.
Austria Provincial Housing Grants & klimaaktiv Gold Bonus
Across Austrian federal states, achieving klimaaktiv Gold awards maximum environmental points in regional Wohnbauförderung schemes, securing direct non-repayable grants.
Certification & Verification Roadmap for klimaaktiv
PHPP or statutory calculation prepared with plot coordinates, solar azimuth, and local weather files.
Target U-values specified with exterior rockwool thickness and triple-glazed warm-edge fenestration.
ISO 9972 pressure test and IR thermography physically verify airtightness threshold n50 <= 0.60 h⁻¹.
Third-party certified audit dossier submitted for official energy efficiency and green mortgage registration.
Why Cold-Formed Steel for klimaaktiv?
Steel frame does not shrink, twist or warp, ensuring airtight seals and tape junctions remain permanently intact.
Windows and panel interfaces are roll-formed to 0.5 mm tolerance, preventing unplanned thermal leaks on site.
Galvanized steel is impervious to rot, mold, fungi and termites, securing building biology credentials.
Building Physics & Technologies for Standard Compliance
Explore Other Model Concepts
Compare alternative footprints, storey options and spatial arrangements.
Model 25-1003 • 99 m²
Model 25-1003 — 99 m², 1 storey
Model 25-1004 • 114 m²
Model 25-1004 — 114 m², 1 storey
Model 25-1005 • 135 m²
Model 25-1005 — 135 m², 1 storey
Frequently Asked Questions
Essential answers regarding steel construction, energy targets and project delivery.
Yes. With exterior continuous insulation eliminating thermal bridging, certified triple-glazed windows, airtight membranes, and heat recovery ventilation (MVHR), steel homes achieve full Passive House standards.
Thermal bridging is prevented by external continuous insulation wrap, thermal-break tape on structural connections, and decoupling outer claddings from interior framing.
Passive House requires n50 <= 0.6 h-1 on Blower Door testing. Our envelope design incorporates continuous vapor control membranes taped at all seams.
Minergie is a Swiss quality label focusing on energy efficiency and indoor comfort with specific primary energy criteria, while Passivhaus has strict heating demand caps (15 kWh/m²a).
Official building certifications are issued by accredited third-party certifiers (e.g. Passive House Institute, Minergie Agency, DGNB) upon submission of calculations and test results.
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