U ≤ 0.14 W/m²K EN 13162 / EN ISO 6946 / Passivhaus

High-Performance Building Envelope & Thermal Control

Continuous external mineral wool wrap, vapor-permeable smart membranes and thermal-bridge-free detailing achieving Passivhaus-level thermal retention and moisture safety.

Technical Subsystem Keywords: # high performance building envelope # continuous exterior insulation # U value 0.14 Wm2K # airtight smart membrane

Key Engineering & Performance Metrics

U Value U ≤ 0.14 W/m²K (External Walls)
Airtightness n50 ≤ 0.60 h⁻¹ (Blower Door)
Insulation Type A1 Non-combustible rockwool 160-200mm
Glazing Triple glazed low-E argon filled (Ug ≤ 0.6)
Structural Mechanics

System Architecture & Structural Mechanics

The envelope architecture completely encapsulates the structural steel frame with continuous external insulation, avoiding any cold-bridging between warm interior air and cold exterior weather. A variable-permeability vapor control layer controls interstitial humidity throughout winter and summer.
Norm Compliance

Technical Standards & Compliance Matrix

Verified design standards, testing criteria and tolerance controls.

Technical Parameter #1

Structural & Seismic

Applicable Standard
Eurocode 3 (EN 1993) & Eurocode 8 (EN 1998)
Limit / Rating
S355JR / S275JR, DCM/DCH Ductility
Verification Method
3D FEM Analysis & Verification Report
Technical Parameter #2

Steel Fabrication & Welding

Applicable Standard
EN 1090-2 (EXC3) / ISO 3834-2
Limit / Rating
EXC3 Execution Class, CE Marked
Verification Method
NDT Ultrasonic & Magnetic Testing
Technical Parameter #3

Corrosion Protection

Applicable Standard
ISO 12944 (C3 / C4 Dayanım)
Limit / Rating
Epoxy Primer + PU Topcoat (160–240 µm)
Verification Method
DFT Gauge & Cross-Cut Adhesion
Technical Parameter #4

Fire & Acoustic Separation

Applicable Standard
EN 13501-2 / ISO 717-1
Limit / Rating
REI 60–120 · Rw ≥ 56 dB / Ln,w ≤ 48 dB
Verification Method
Accredited Lab Test Certification
Technical Parameter #5

Dimensional Tolerances

Applicable Standard
EN 1090-2 D Sınıfı & ISO 2768
Limit / Rating
Diagonal & Vertical max. ±2.0 mm
Verification Method
3D Laser Metrology & Calibration Jig
Factory Production

Factory Pre-fabrication & Quality Verification (ITP)

Factory installation guarantees zero rain exposure during assembly. Windows and airtight sealing tapes are applied under factory-controlled temperatures, ensuring permanent adhesion testable before factory release.
Interface Discipline

Layer Architecture & On-site Interface

01

Structural Node & Joint

Cast-steel corner blocks and EN 14399 grade 10.9 high-strength structural bolts guarantee instant load transfer.

02

Acoustic & Fire Seals

Continuous EPDM weather seals, intumescent fire gaskets and elastomeric vibration isolators installed between volumetric cells.

03

Vertical Shaft Coupling

Vertical MEP risers align on precision axes with flexible compensator couplings for rapid single-point hookup.

04

Certified Crane Rigging

Integrated rigging pick-points calibrated to volumetric center of gravity ensure balanced, tilt-free crane erection.

Technology Ecosystem

Explore Other Engineering Subsystems

Coordinated building envelope, MEP, acoustic, connection and quality control engineering systems.

SYS-01 · EN 1090-2 (EXC3) →

Structural Steel Frame & Seismic Engineering

Precision-welded S275 and S355 box profiles providing superior structural ductility, millimeter tolerance and high seismic safety across multi-storey volumetric configurations.

SYS-03 · Eurocode 3 & 8 →

Volumetric Joint Interlocks & Structural Node Bolting

Bolted structural tie-plates transferring lateral seismic shear and wind uplift across module corners, enabling swift crane landing and rigid multi-unit coherence.

SYS-04 · Rw ≥ 58 dB →

Acoustic Insulation & Fire Compartmentation

Air-cavity separated double steel framing delivering zero cross-apartment noise transmission alongside REI 90 to REI 120 fire resistance certified by European testing standards.

SYS-05 · Plug & Play →

Plug-and-Play MEP Corridors & Factory Testing

Factory-installed and pressure-tested plumbing, pre-wired electrical quick-couplings and radiant underfloor heating pre-commissioned before departure.

SYS-06 · ISO 9001 / FAT →

Off-Site Quality Control, ITP & Tolerances

Multi-gate Inspection and Test Plan (ITP), 3D laser geometric metrology ensuring ±1.5 mm diagonal accuracy, and comprehensive Factory Acceptance Testing (FAT) documentation.

Direct Architectural & Engineering Leadership

Structure Your Technical Specification & Engineering Baseline

Share your structural parameters, Eurocode design requirements and target typology for a verified engineering feasibility review with the SERMODULA Engineering & Technical Team.

SERMODULA Structural Engineering Desk Eurocode 3 & 8 / EN 1090-2 Technical Coordination
Direct (GSM): +90 (505) 507 04 18
Central Switchboard: +90 (216) 614 04 34
Engineering Email: [email protected]
Consult Engineering Desk Request Technical Specification Dossier →
Knowledge Base

Frequently Asked Questions

Does steel cause thermal bridging?
No. Because the insulation sits entirely outside the steel framing in a continuous jacket, the steel remains inside the warm thermal boundary with zero thermal bridges.
What energy class is achieved in Europe?
Standard assemblies satisfy GEG A+ in Germany, RE2020 in France, and BENG standards in the Netherlands with ease.
What exterior cladding options are possible?
Ventilated ceramic tiles, fiber cement panels, standing seam zinc/aluminum, or thermo-wood timber slats can be factory-mounted.
How is summer overheating prevented?
High-density mineral wool (100-140 kg/m³) provides superior thermal lag (phase shift > 10 hours), keeping interiors cool during heatwaves.
Is a Blower Door test conducted?
Yes. Key prototype and sample batches undergo Blower Door testing to verify n50 ≤ 0.60 h⁻¹ before client handover.