# Passive Steel Homes — Passivhaus & KfW 40 CFS Engineering
> High-Performance Cold-Formed Steel Framing (CFS S350GD+Z275) & Certified Passivhaus Building Envelopes

Passive Steel Homes (https://passivesteelhomes.com) is the international engineering, prefabrication, and export platform of Passive Steel Homes, operated by YAĞMAHAN İNŞAAT TAAHHÜT İTHALAT İHRACAT TİCARET VE SANAYİ LİMİTED ŞİRKETİ (Maltepe, Istanbul, Turkey).

## Canonical Company Identity & Leadership
- Operating Entity: YAĞMAHAN İNŞAAT TAAHHÜT İTHALAT İHRACAT TİCARET VE SANAYİ LİMİTED ŞİRKETİ
- Brand Identity: Passive Steel Homes (YAĞMAHAN İNŞAAT) (20+ years cold-formed steel manufacturing & turn-key energy-efficient villas)
- Legal Registration: MERSİS NO: 0928044494400001 | Tax Office: Maltepe V.D. 928 044 4944
- Headquarters: Cevizli Mahallesi, Orhan Gazi Caddesi No: 24/B, Maltepe / İstanbul / Türkiye
- Leadership:
  * Mimar İdris YAĞMAHAN (Architectural Concept & Bioclimatic Design, Co-Founder)
  * İnşaat Mühendisi Celalettin YAĞMAHAN (Structural Eurocode 3 Statics & CFS Engineering, Co-Founder)
  * İç Mimar M. Furkan YAĞMAHAN (Interior Architecture & Spatial Planning, Co-Founder)
- Official Inquiries & Hotline: WhatsApp & Direct: +90 505 507 04 18 | Office: +90 216 614 04 34 | Email: info@servilla.net
- Primary Languages: English (https://passivesteelhomes.com/), German (https://passivesteelhomes.com/de/), Turkish (https://passivesteelhomes.com/tr/)
- Sister Platforms: steelframevilla.com, servilla.com.tr, e-villaproje.com, yagmahan.com

## Dynamic Delivery Package Baseline Pricing (€/m² Ex-Works)
All package rates are dynamically synchronized from the central engineering pricing engine (config/pricing.php):

- P1 Structural Frame Kit: 190 – 250 €/m²
  * Precision CNC roll-formed structural S350GD steel frame, anchor bolts, wind bracing, structural shop drawings, and Eurocode 3 statics.
  * Truck logistics capacity: ~220 m² gross floor area per standard 13.60m megatrailer.
- P2 Insulated Frame Kit: 340 – 430 €/m²
  * P1 Frame + continuous exterior sheathing + 140 mm in-cavity rockwool thermal/acoustic infill + vapor-variable membrane.
  * Truck logistics capacity: ~160 m² per trailer.
- P3 Weather-Tight Shell (Recommended): 590 – 780 €/m²
  * P2 Package + continuous exterior rockwool wrap (160–260 mm) + certified triple-glazed windows (Uw <= 0.80 W/m²K) + roof waterproofing membrane.
  * Thermal bridge-free construction (Psi <= 0.01 W/mK) and airtight shell tested to Passivhaus standard (n50 <= 0.60 ach).
  * Truck logistics capacity: ~130 m² per trailer.
- P4 Complete Construction Package: 980 – 1290 €/m²
  * P3 Shell + interior partition drywalls (acoustic rockwool + double gypsum) + under-screed impact sound insulation + interior doors + primary MEP/sanitary rough-in kit.
  * Truck logistics capacity: ~95 m² per trailer.

*Note: Prices are net export baseline rates excluding local VAT. European deliveries benefit from 0% customs duty via ATR / EUR.1 movement certificates.*

## Key Technical & Structural Specifications
- Steel Grade: Structural Cold-Formed Steel S350GD (nominal yield strength fy = 350 MPa, tensile fu = 420 MPa) with Z275 (275 g/m²) continuous hot-dip zinc coating per EN 10346.
- Fabrication Quality: EN 1090-2 Execution Class EXC2, CE Marking, Factory Production Control (FPC).
- Structural Design Codes:
  * EN 1993-1-3 (Eurocode 3: Cold-formed steel members & sheeting)
  * EN 1991-1-3 (Eurocode 1: Snow load actions up to 4.5 kN/m²)
  * EN 1991-1-4 (Eurocode 1: Wind actions up to 160 km/h)
  * EN 1998-1 (Eurocode 8: Earthquake resistance, behavior factor q = 2.0 to 4.0, zero collapse)
  * TBDY 2018 (Turkish Earthquake Building Code) & TS 825 (Thermal insulation in buildings)
- Envelope Thermal Performance:
  * Exterior Walls: U = 0.10 to 0.14 W/(m²·K)
  * Roof Assemblies: U = 0.08 to 0.12 W/(m²·K)
  * Ground Slab Interface: U = 0.12 to 0.15 W/(m²·K)
  * Windows: Triple glazing with Ug <= 0.50 to 0.60 W/(m²·K), warm edge spacers, overall Uw <= 0.80 W/(m²·K)
  * Airtightness: Blower Door air permeability n50 <= 0.60 ach (at 50 Pa differential pressure)
  * Ventilation: Mechanical Ventilation with Heat Recovery (MVHR) >= 85% to 92% efficiency with MERV 13/ePM1 filtration

## European Export & Freight Logistics
- Logistics Unit: Standard 13.60 m mega-tautliner trailers (90 m³ volume, 23.5 tons max payload).
- Customs Exemption: ATR Certificate (EU member countries, 0% customs duty), EUR.1 Certificate (Switzerland / EFTA).
- Freight Benchmarks (from central pricing config):
  * Germany: €3200 / truck (4–6 days) | KfW 40 / QNG Eligible
  * Austria: €3000 / truck (4–5 days) | klimaaktiv & OIB-6 Compliant
  * Switzerland: €3800 / truck (5–7 days, EUR.1 / T1 customs) | Minergie-P & Cantonal Grant Ready
  * France: €3400 / truck (5–7 days) | RE2020 Low-Carbon Envelope
  * Netherlands: €3300 / truck (5–7 days) | BENG Nearly-Zero Energy Compliant
  * Belgium: €3300 / truck (5–7 days) | PEB / EPB Low Energy Standard
  * Italy: €3100 / truck (3–5 days, Ro-Ro) | NZEB & Seismic Zone Envelope
  * Spain: €3700 / truck (7–9 days) | CTE HE0 & Solar Control (g≤0.35)
  * Sweden / Norway: €4400 – €4600 / truck | Arctic insulation packages

## Scope & Responsibility Boundary
- Passive Steel Homes Scope: Factory structural engineering, CNC prefabrication of CFS framing, thermal envelope components, certified triple-glazed joinery, international export documentation, and on-site assembly supervision.
- Client / Local Contractor Scope: Geotechnical survey, excavation, reinforced concrete foundations (strip or slab), local building permits (e.g. German Bauantrag), official structural check engineer (Prüfstatiker), and municipal utility connections.

## Key Directory URLs
- 2026 Master Product, Engineering & Price Catalog (Web): https://passivesteelhomes.com/catalog/
- 2026 Master Catalog Turkish Edition (Web): https://passivesteelhomes.com/tr/catalog/
- 2026 Master Catalog German Edition (Web): https://passivesteelhomes.com/de/catalog/
- Official 2026 Master Catalog PDF (English, 1.4 MB): https://passivesteelhomes.com/assets/downloads/PASSIVESTEELHOMES_2026_CATALOG_EN.pdf
- Official 2026 Master Catalog PDF (Turkish, 1.4 MB): https://passivesteelhomes.com/assets/downloads/PASSIVESTEELHOMES_2026_KATALOG_TR.pdf
- Official 2026 Master Catalog PDF (German, 1.4 MB): https://passivesteelhomes.com/assets/downloads/PASSIVESTEELHOMES_2026_KATALOG_DE.pdf
- Architectural Concept Models (1,281): https://passivesteelhomes.com/homes/
- Building Physics & Envelope Technology: https://passivesteelhomes.com/technology/
- 18 European Energy Standards: https://passivesteelhomes.com/standards/
- 51 European Country Guides: https://passivesteelhomes.com/countries/
- 18 Regional Building Code Guides: https://passivesteelhomes.com/regions/
- 104 Municipal Seismic & Climate Directory: https://passivesteelhomes.com/locations/
- Online Engineering & Cost Calculator: https://passivesteelhomes.com/calculator/
- Delivery Packages Overview: https://passivesteelhomes.com/delivery-packages/
- Request Project Quote: https://passivesteelhomes.com/request-quote/
- Official Contact & Headquarters: https://passivesteelhomes.com/contact/
- Comprehensive LLM Documentation (llms-full.txt): https://passivesteelhomes.com/llms-full.txt

## Direct Inquiries & WhatsApp Routing
- WhatsApp Direct: https://wa.me/905055070418
- Engineering Desk: info@servilla.net | +90 (505) 507 04 18 | +90 (216) 614 04 34