Light Gauge Steel Engineering & Building Physics
Precision cold-formed steel manufacturing, continuous external thermal envelope, zero thermal bridging and airtight building physics.
Integrated Passive House Envelope Architecture
8 Engineering Modules
1:1 CAD/CAM Detail
Eurocode 3 • Passivhaus • DIN 4108
Interactive Architectural Sections & Junction Details
Explore the layer-by-layer anatomy of walls, floors, foundations, roofs and precision window installation interfaces.
✓ 6 Systems • High-Precision Details
Exterior Wall 1: Rendered Insulation (EIFS / ETICS)
Classic passive house wall with continuous 120 mm exterior rockwool EIFS fully eliminating all thermal bridging through steel studs, vapour-open from inside out.
U = 0.12 W/m²K • REI 90 • Rw = 56 dB
U-Value
0.12 W/m²K
Total Thickness
335 mm
Sound Insulation
56 dB
Fire Rating
REI 90 (Euroclass A1/A2)
Thermal Bridge (Ψ)
≤ 0.010 W/mK
CAD/CAM PRECISION • CROSS SECTION 1:1 VECTOR SPEC
ONLINE INTERACTIVE
Physical Layer Breakdown & Material Specification
7 Layers
1
Silicone Exterior Render & Mesh
P3
10 mm
λ: 0.75 W/mK
μ: 35
A2-s1,d0
Hydrophobic, breathable finish
2
Continuous Exterior Rockwool Slab
P3
120 mm
λ: 0.035 W/mK
μ: 1.0
A1
Continuous external thermal blanket
3
External Structural Sheathing Board
P2
12.5 mm
λ: 0.25 W/mK
μ: 15
A1
Wind & seismic shear diaphragm
4
CFS Stud Frame (C140) + 140 mm Mineral Wool
P1/P2
140 mm
λ: 0.034 W/mK
μ: 1.0
A1
Primary load-bearing steel skeleton
5
Smart Vapour & Airtightness Membrane
P2
0.5 mm
λ: 0.20 W/mK
μ: Sd=0.25-25m
E
Envelope airtight seal n50 <= 0.60
6
Service Cavity (Battens)
P4
40 mm
λ: 0.040 W/mK
μ: 1.0
A1
Piping & wiring without piercing membrane + stud thermal break
7
Double Fire/Acoustic Gypsum (Type F) / Fermacell
P4
25 mm
λ: 0.25 W/mK
μ: 10
A2-s1,d0
Impact durability and fire shielding
Scroll horizontally to view all layer parameters
7 Layers
| No | Material & Layer Specification | Thickness | Conductivity (λ) | Vapour / Sd | Fire Class | Delivery Package | Building Physics Function |
|---|---|---|---|---|---|---|---|
| 1 | Silicone Exterior Render & Mesh | 10 mm | 0.75 W/mK | 35 | A2-s1,d0 | P3 | Hydrophobic, breathable finish |
| 2 | Continuous Exterior Rockwool Slab | 120 mm | 0.035 W/mK | 1.0 | A1 | P3 | Continuous external thermal blanket |
| 3 | External Structural Sheathing Board | 12.5 mm | 0.25 W/mK | 15 | A1 | P2 | Wind & seismic shear diaphragm |
| 4 | CFS Stud Frame (C140) + 140 mm Mineral Wool | 140 mm | 0.034 W/mK | 1.0 | A1 | P1/P2 | Primary load-bearing steel skeleton |
| 5 | Smart Vapour & Airtightness Membrane | 0.5 mm | 0.20 W/mK | Sd=0.25-25m | E | P2 | Envelope airtight seal n50 <= 0.60 |
| 6 | Service Cavity (Battens) | 40 mm | 0.040 W/mK | 1.0 | A1 | P4 | Piping & wiring without piercing membrane + stud thermal break |
| 7 | Double Fire/Acoustic Gypsum (Type F) / Fermacell | 25 mm | 0.25 W/mK | 10 | A2-s1,d0 | P4 | Impact durability and fire shielding |
Exterior Wall 2: Ventilated Timber/Composite Rainscreen
Luxury architectural facade featuring a continuous 30 mm ventilation cavity behind timber battens, ceramic or composite panels that dissipates solar heat gain via chimney effect.
U = 0.13 W/m²K • Rainscreen Cavity • Rw = 58 dB
U-Value
0.13 W/m²K
Total Thickness
365 mm
Summer Shading
85% Natural Heat Dissipation
Ventilation Gap
30 mm Continuous Rainscreen Gap
Acoustic Rating
58 dB
CAD/CAM PRECISION • CROSS SECTION 1:1 VECTOR SPEC
ONLINE INTERACTIVE
Physical Layer Breakdown & Material Specification
8 Layers
1
Thermo-Wood / Composite Cladding
P3
20 mm
λ: 0.15 W/mK
μ: 50
B-s1,d0
UV-resistant rain deflector
2
Vertical Counter-Battens (Ventilation Gap)
P3
30 mm
λ: Konvektif Akış
μ: 1.0
B
Chimney-effect convective cooling
3
UV-Resistant Breather Membrane
P3
0.6 mm
λ: 0.20 W/mK
μ: Sd=0.02m
B-s1,d0
Blocks driven rain, vents moisture
4
Rigid Exterior Rockwool Board
P3
100 mm
λ: 0.034 W/mK
μ: 1.0
A1
Continuous external insulation
5
Structural Sheathing (BoardeX)
P2
12.5 mm
λ: 0.25 W/mK
μ: 15
A1
Shear bracing
6
CFS Frame C140 + 140 mm Rockwool
P1/P2
140 mm
λ: 0.034 W/mK
μ: 1.0
A1
Primary load-bearing structure
7
Smart Vapour & Airtightness Membrane
P2
0.5 mm
λ: 0.20 W/mK
μ: Sd=0.25-25m
E
Airtight red line seal
8
Service Zone (40 mm) + Double Gypsum (25 mm)
P4
65 mm
λ: 0.25 W/mK
μ: 10
A2
Interior finish & service cavity
Scroll horizontally to view all layer parameters
8 Layers
| No | Material & Layer Specification | Thickness | Conductivity (λ) | Vapour / Sd | Fire Class | Delivery Package | Building Physics Function |
|---|---|---|---|---|---|---|---|
| 1 | Thermo-Wood / Composite Cladding | 20 mm | 0.15 W/mK | 50 | B-s1,d0 | P3 | UV-resistant rain deflector |
| 2 | Vertical Counter-Battens (Ventilation Gap) | 30 mm | Konvektif Akış | 1.0 | B | P3 | Chimney-effect convective cooling |
| 3 | UV-Resistant Breather Membrane | 0.6 mm | 0.20 W/mK | Sd=0.02m | B-s1,d0 | P3 | Blocks driven rain, vents moisture |
| 4 | Rigid Exterior Rockwool Board | 100 mm | 0.034 W/mK | 1.0 | A1 | P3 | Continuous external insulation |
| 5 | Structural Sheathing (BoardeX) | 12.5 mm | 0.25 W/mK | 15 | A1 | P2 | Shear bracing |
| 6 | CFS Frame C140 + 140 mm Rockwool | 140 mm | 0.034 W/mK | 1.0 | A1 | P1/P2 | Primary load-bearing structure |
| 7 | Smart Vapour & Airtightness Membrane | 0.5 mm | 0.20 W/mK | Sd=0.25-25m | E | P2 | Airtight red line seal |
| 8 | Service Zone (40 mm) + Double Gypsum (25 mm) | 65 mm | 0.25 W/mK | 10 | A2 | P4 | Interior finish & service cavity |
Exterior Wall 3: Brick Slip & Stone Ventilated Facade
Mechanically anchored brick slips or natural stone over CFS framing, incorporating a 40 mm drained air cavity and rockwool insulation for superior acoustic mass and traditional aesthetics.
U = 0.13 W/m²K • Rw = 60 dB • Heavy Cladding
U-Value
0.13 W/m²K
Total Thickness
395 mm
Sound Insulation
60 dB (High Acoustic Mass)
Impact Resistance
Category 1 (Maximum Durability)
Fire Rating
REI 90 / Euroclass A1
CAD/CAM PRECISION • CROSS SECTION 1:1 VECTOR SPEC
ONLINE INTERACTIVE
Physical Layer Breakdown & Material Specification
7 Layers
1
Brick Slips / Natural Stone Cladding
P3
25 mm
λ: 0.80 W/mK
μ: 50
A1
Frost-resistant exterior masonry cladding
2
Ventilated & Drained Cavity (Stainless Ties)
P3
40 mm
λ: R=0.18 m²K/W
μ: 1.0
A1
Rear ventilation drainage cavity
3
Exterior Rockwool Insulation (120 mm)
P3
120 mm
λ: 0.22 W/mK
μ: Sd=0.02 m
B-s1,d0
Breathable wind-tight weather barrier
4
Heavy-Duty Sheathing Board
P2
12.5 mm
λ: 0.035 W/mK
μ: 1.0
A1
Continuous external mineral wool insulation
5
CFS Stud C140 + 140 mm Rockwool Cavity Fill
P1/P2
140 mm
λ: 0.25 W/mK
μ: 15
A1
Shear wall seismic diaphragm
6
Smart Vapour Barrier & Airtight Membrane
P2
0.5 mm
λ: 0.034 W/mK
μ: 1.0
A1
Load-bearing cold-formed steel skeleton
7
Service Zone + Double Gypsum Lining
P4
55 mm
λ: 0.21 W/mK
μ: Sd=0.25-25 m
A2-s1,d0
Airtight boundary and interior drywall
Scroll horizontally to view all layer parameters
7 Layers
| No | Material & Layer Specification | Thickness | Conductivity (λ) | Vapour / Sd | Fire Class | Delivery Package | Building Physics Function |
|---|---|---|---|---|---|---|---|
| 1 | Brick Slips / Natural Stone Cladding | 25 mm | 0.80 W/mK | 50 | A1 | P3 | Frost-resistant exterior masonry cladding |
| 2 | Ventilated & Drained Cavity (Stainless Ties) | 40 mm | R=0.18 m²K/W | 1.0 | A1 | P3 | Rear ventilation drainage cavity |
| 3 | Exterior Rockwool Insulation (120 mm) | 120 mm | 0.22 W/mK | Sd=0.02 m | B-s1,d0 | P3 | Breathable wind-tight weather barrier |
| 4 | Heavy-Duty Sheathing Board | 12.5 mm | 0.035 W/mK | 1.0 | A1 | P2 | Continuous external mineral wool insulation |
| 5 | CFS Stud C140 + 140 mm Rockwool Cavity Fill | 140 mm | 0.25 W/mK | 15 | A1 | P1/P2 | Shear wall seismic diaphragm |
| 6 | Smart Vapour Barrier & Airtight Membrane | 0.5 mm | 0.034 W/mK | 1.0 | A1 | P2 | Load-bearing cold-formed steel skeleton |
| 7 | Service Zone + Double Gypsum Lining | 55 mm | 0.21 W/mK | Sd=0.25-25 m | A2-s1,d0 | P4 | Airtight boundary and interior drywall |
Exterior Wall 4: Twin-Stud Super-Insulated Wall
Twin non-touching parallel light steel frames separated by a complete thermal decoupling cavity with 280-320 mm continuous rockwool insulation for alpine and nordic zones.
U = 0.09 W/m²K • 420 mm • Alpine / Nordic Climate
U-Value
0.09 W/m²K
Total Thickness
420 mm
Thermal Bridge (Ψ)
0.000 W/mK (Fully Decoupled)
Acoustic Rating
62 dB
Fire Rating
REI 120
CAD/CAM PRECISION • CROSS SECTION 1:1 VECTOR SPEC
ONLINE INTERACTIVE
Physical Layer Breakdown & Material Specification
6 Layers
1
Exterior Cladding / EIFS
P3
80 mm
λ: 0.75 W/mK
μ: 35
A2-s1,d0
Hydrophobic breathable exterior finish
2
Outer Structural CFS Frame (C90)
P1/P2
90 mm
λ: 0.040 W/mK
μ: 5.0
A1
External render carrier insulation
3
Thermal Decoupling Gap (Continuous Wool Fill)
P2
70 mm
λ: 0.034 W/mK
μ: 1.0
A1
Outer non-bridged stud line
4
Inner Structural CFS Frame (C90)
P1/P2
90 mm
λ: 0.036 W/mK
μ: 1.0
A1
Complete thermal break cavity separating studs
5
Smart Vapour & Airtightness Membrane
P2
0.5 mm
λ: 0.034 W/mK
μ: 1.0
A1
Primary load-bearing inner stud wall
6
Service Cavity + Double Fermacell Board
P4
75 mm
λ: 0.21 W/mK
μ: Sd=0.25-25 m
A2-s1,d0
Unpierced service zone and airtight lining
Scroll horizontally to view all layer parameters
6 Layers
| No | Material & Layer Specification | Thickness | Conductivity (λ) | Vapour / Sd | Fire Class | Delivery Package | Building Physics Function |
|---|---|---|---|---|---|---|---|
| 1 | Exterior Cladding / EIFS | 80 mm | 0.75 W/mK | 35 | A2-s1,d0 | P3 | Hydrophobic breathable exterior finish |
| 2 | Outer Structural CFS Frame (C90) | 90 mm | 0.040 W/mK | 5.0 | A1 | P1/P2 | External render carrier insulation |
| 3 | Thermal Decoupling Gap (Continuous Wool Fill) | 70 mm | 0.034 W/mK | 1.0 | A1 | P2 | Outer non-bridged stud line |
| 4 | Inner Structural CFS Frame (C90) | 90 mm | 0.036 W/mK | 1.0 | A1 | P1/P2 | Complete thermal break cavity separating studs |
| 5 | Smart Vapour & Airtightness Membrane | 0.5 mm | 0.034 W/mK | 1.0 | A1 | P2 | Primary load-bearing inner stud wall |
| 6 | Service Cavity + Double Fermacell Board | 75 mm | 0.21 W/mK | Sd=0.25-25 m | A2-s1,d0 | P4 | Unpierced service zone and airtight lining |
Interior Wall 1: Standard Partition Wall (Room Divider)
Non-load bearing internal partition providing fire and acoustic separation between rooms using C75 steel studs, acoustic mineral wool cavity fill and double-layer gypsum on both sides.
Rw = 48 dB • REI 60 • 125 mm Overall
Sound Insulation
48 dB (DIN 4109)
Total Thickness
125 mm
Fire Rating
EI 60 (60 Minutes)
Stud Profile
C75 Galvanized Steel (0.8-1.0 mm)
Dead Weight
~42 kg/m² (Ultra-Lightweight)
CAD/CAM PRECISION • CROSS SECTION 1:1 VECTOR SPEC
ONLINE INTERACTIVE
Physical Layer Breakdown & Material Specification
4 Layers
1
Room 1 Double Gypsum Board
P4
25 mm (2x12.5)
λ: 0.25 W/mK
μ: 10
A2-s1,d0
Smooth interior drywall lining
2
CFS Studs (C75) + 75 mm Acoustic Mineral Wool Fill
P1/P4
75 mm
λ: 50 W/mK
μ: Sonsuz
A1
Light gauge steel partition stud frame
3
Perimeter Resilient Acoustic Sealing Strips
P1
5 mm
λ: 0.037 W/mK
μ: 1.0
A1
Cavity acoustic absorption batts
4
Room 2 Double Gypsum Board
P4
25 mm (2x12.5)
λ: 0.25 W/mK
μ: 10
A2-s1,d0
Opposite face interior drywall
Scroll horizontally to view all layer parameters
4 Layers
| No | Material & Layer Specification | Thickness | Conductivity (λ) | Vapour / Sd | Fire Class | Delivery Package | Building Physics Function |
|---|---|---|---|---|---|---|---|
| 1 | Room 1 Double Gypsum Board | 25 mm (2x12.5) | 0.25 W/mK | 10 | A2-s1,d0 | P4 | Smooth interior drywall lining |
| 2 | CFS Studs (C75) + 75 mm Acoustic Mineral Wool Fill | 75 mm | 50 W/mK | Sonsuz | A1 | P1/P4 | Light gauge steel partition stud frame |
| 3 | Perimeter Resilient Acoustic Sealing Strips | 5 mm | 0.037 W/mK | 1.0 | A1 | P1 | Cavity acoustic absorption batts |
| 4 | Room 2 Double Gypsum Board | 25 mm (2x12.5) | 0.25 W/mK | 10 | A2-s1,d0 | P4 | Opposite face interior drywall |
Interior Wall 2: Double-Stud Acoustic Party Wall
High-performance acoustic separating wall for multi-family dwellings or adjoining units, utilizing two completely decoupled parallel CFS stud rows separated by a 30 mm acoustic air gap.
Rw ≥ 64 dB • REI 90 • Twin Decoupled Frame
Sound Reduction (Rw)
≥ 64 dB (Premium Acoustic Class)
Total Thickness
250 mm
Fire Resistance
REI 90 (Euroclass A1/A2)
Acoustic Air Gap
30 mm Full Acoustic Decoupling
Frame Assembly
2x C75 Parallel Decoupled Studs
CAD/CAM PRECISION • CROSS SECTION 1:1 VECTOR SPEC
ONLINE INTERACTIVE
Physical Layer Breakdown & Material Specification
5 Layers
1
Unit A Double Fire/Sound Gypsum (Type F)
P4
25 mm
λ: 0.25 W/mK
μ: 10
A2-s1,d0
High-density acoustic mass board
2
Unit A CFS Studs C75 + 75 mm Rockwool
P1/P4
75 mm
λ: 0.035 W/mK
μ: 1.0
A1
First decoupled partition stud row
3
Acoustic Decoupled Air Gap
P1
30 mm
λ: R=0.16 m²K/W
μ: 1.0
B2
Complete structural sound decoupling gap
4
Unit B CFS Studs C75 + 75 mm Rockwool
P1/P4
75 mm
λ: 0.035 W/mK
μ: 1.0
A1
Second decoupled partition stud row
5
Unit B Double Fire/Sound Gypsum (Type F)
P4
25 mm
λ: 0.25 W/mK
μ: 10
A2-s1,d0
Final mass layer delivering Rw 64 dB rating
Scroll horizontally to view all layer parameters
5 Layers
| No | Material & Layer Specification | Thickness | Conductivity (λ) | Vapour / Sd | Fire Class | Delivery Package | Building Physics Function |
|---|---|---|---|---|---|---|---|
| 1 | Unit A Double Fire/Sound Gypsum (Type F) | 25 mm | 0.25 W/mK | 10 | A2-s1,d0 | P4 | High-density acoustic mass board |
| 2 | Unit A CFS Studs C75 + 75 mm Rockwool | 75 mm | 0.035 W/mK | 1.0 | A1 | P1/P4 | First decoupled partition stud row |
| 3 | Acoustic Decoupled Air Gap | 30 mm | R=0.16 m²K/W | 1.0 | B2 | P1 | Complete structural sound decoupling gap |
| 4 | Unit B CFS Studs C75 + 75 mm Rockwool | 75 mm | 0.035 W/mK | 1.0 | A1 | P1/P4 | Second decoupled partition stud row |
| 5 | Unit B Double Fire/Sound Gypsum (Type F) | 25 mm | 0.25 W/mK | 10 | A2-s1,d0 | P4 | Final mass layer delivering Rw 64 dB rating |
Interior Wall 3: Wet Room & Bathroom Wall (Aquapanel + Tanking)
Wet-room wall assembly engineered with moisture-resistant inorganic cement boards (Aquapanel), double liquid waterproof tanking membrane, and tiles to shield CFS framing from water ingress.
W4 Waterproof • A1 Mould Resistance • Tile Ready
Water Resistance
W4 (Continuous Wet / Walk-In Shower)
Total Thickness
135 mm
Mould Resistance
100% Inorganic Substrate Board
Cantilever Load
Reinforced for Wall-Hung Fixtures
CAD/CAM PRECISION • CROSS SECTION 1:1 VECTOR SPEC
ONLINE INTERACTIVE
Physical Layer Breakdown & Material Specification
5 Layers
1
Ceramic / Porcelain Tiles + Waterproof Grout
P4
10 mm
λ: 1.30 W/mK
μ: 200
A1
Waterproof ceramic/porcelain tile finish
2
Double Liquid Tanking Membrane + Corner Sealing Tapes
P4
2 mm
λ: 0.20 W/mK
μ: Sd=15 m
E
Liquid waterproof tanking membrane & tapes
3
Water-Resistant Cement Board (Aquapanel)
P4
12.5 mm
λ: 0.25 W/mK
μ: 15
A2-s1,d0
Hydrophobic water-resistant board
4
CFS Studs (C90) + 90 mm Moisture-Treated Rockwool
P1/P4
90 mm
λ: 0.035 W/mK
μ: 1.0
A1
Reinforced frame for wall-hung fixtures
5
Dry Room Side: Double Gypsum (20 mm)
P4
20 mm
λ: 0.040 W/mK
μ: 1000
B-s3,d0
Acoustic pipe insulation & drainage cavity
Scroll horizontally to view all layer parameters
5 Layers
| No | Material & Layer Specification | Thickness | Conductivity (λ) | Vapour / Sd | Fire Class | Delivery Package | Building Physics Function |
|---|---|---|---|---|---|---|---|
| 1 | Ceramic / Porcelain Tiles + Waterproof Grout | 10 mm | 1.30 W/mK | 200 | A1 | P4 | Waterproof ceramic/porcelain tile finish |
| 2 | Double Liquid Tanking Membrane + Corner Sealing Tapes | 2 mm | 0.20 W/mK | Sd=15 m | E | P4 | Liquid waterproof tanking membrane & tapes |
| 3 | Water-Resistant Cement Board (Aquapanel) | 12.5 mm | 0.25 W/mK | 15 | A2-s1,d0 | P4 | Hydrophobic water-resistant board |
| 4 | CFS Studs (C90) + 90 mm Moisture-Treated Rockwool | 90 mm | 0.035 W/mK | 1.0 | A1 | P1/P4 | Reinforced frame for wall-hung fixtures |
| 5 | Dry Room Side: Double Gypsum (20 mm) | 20 mm | 0.040 W/mK | 1000 | B-s3,d0 | P4 | Acoustic pipe insulation & drainage cavity |
Floor 1: Wet Screed & Underfloor Heated Acoustic Floor
50 mm self-levelling screed with integrated underfloor heating, resilient acoustic underlay, EPDM joist isolation strips and resilient ceiling channels providing supreme footstep silence.
Rw = 60 dB • Ln,w = 44 dB • REI 60
Airborne Sound (Rw)
≥ 60 dB
Impact Sound (Ln,w)
≤ 44 dB (Superior Acoustic Decoupling)
Joist / Truss Profile
C250 Joists or 300 mm Open-Web Steel Trusses
Fire Rating
REI 60 (Euroclass A1)
CAD/CAM PRECISION • CROSS SECTION 1:1 VECTOR SPEC
ONLINE INTERACTIVE
Physical Layer Breakdown & Material Specification
7 Layers
1
Floor Finish (Parquet / Tile)
P4
15 mm
λ: 0.15 W/mK
μ: 50
Cfl-s1
Floor finish layer
2
Underfloor Heating Screed
P4
50 mm
λ: 1.40 W/mK
μ: 35
A1
Thermal mass and underfloor heating screed
3
Acoustic Impact Mat (ΔLw = 28 dB)
P4
30 mm
λ: 0.040 W/mK
μ: Sd=100 m
B2
Perimeter expansion strip acoustic break
4
Structural Subfloor Board (22 mm)
P2
22 mm
λ: 0.038 W/mK
μ: 1.0
A1
Impact sound resilient acoustic mat
5
Resilient EPDM Joist Isolation Strips
P1
6 mm
λ: 0.13 W/mK
μ: 50
D-s2,d0
Structural subfloor shear diaphragm deck
6
CFS Floor Joists (C250 mm or 30 cm Open-Web Lattice Truss with C90/C140) + Acoustic Wool
P1/P2
250 - 300 mm
λ: 0.035 W/mK
μ: 1.0
A1
Primary CFS floor joist structural cassette
7
Resilient Ceiling Channels + Double Gypsum (25 mm)
P4
50 mm
λ: 0.25 W/mK
μ: 10
A2-s1,d0
Resilient acoustic ceiling & 60-min fire resistance
Scroll horizontally to view all layer parameters
7 Layers
| No | Material & Layer Specification | Thickness | Conductivity (λ) | Vapour / Sd | Fire Class | Delivery Package | Building Physics Function |
|---|---|---|---|---|---|---|---|
| 1 | Floor Finish (Parquet / Tile) | 15 mm | 0.15 W/mK | 50 | Cfl-s1 | P4 | Floor finish layer |
| 2 | Underfloor Heating Screed | 50 mm | 1.40 W/mK | 35 | A1 | P4 | Thermal mass and underfloor heating screed |
| 3 | Acoustic Impact Mat (ΔLw = 28 dB) | 30 mm | 0.040 W/mK | Sd=100 m | B2 | P4 | Perimeter expansion strip acoustic break |
| 4 | Structural Subfloor Board (22 mm) | 22 mm | 0.038 W/mK | 1.0 | A1 | P2 | Impact sound resilient acoustic mat |
| 5 | Resilient EPDM Joist Isolation Strips | 6 mm | 0.13 W/mK | 50 | D-s2,d0 | P1 | Structural subfloor shear diaphragm deck |
| 6 | CFS Floor Joists (C250 mm or 30 cm Open-Web Lattice Truss with C90/C140) + Acoustic Wool | 250 - 300 mm | 0.035 W/mK | 1.0 | A1 | P1/P2 | Primary CFS floor joist structural cassette |
| 7 | Resilient Ceiling Channels + Double Gypsum (25 mm) | 50 mm | 0.25 W/mK | 10 | A2-s1,d0 | P4 | Resilient acoustic ceiling & 60-min fire resistance |
Floor 2: Dry Screed Lightweight Acoustic Floor (Fermacell)
Rapid dry construction assembly avoiding wet screed curing times, featuring 25 mm interlocking Fermacell dry screed elements and acoustic backing ready for flooring in 24 hours.
Fast Dry Assembly • Zero Moisture • Lightweight
Curing Time
0 Days (Immediate Flooring Install)
Acoustic (Rw)
57 dB
Impact Sound (Ln,w)
48 dB
Weight Reduction
60% Lighter than Conventional Screed
CAD/CAM PRECISION • CROSS SECTION 1:1 VECTOR SPEC
ONLINE INTERACTIVE
Physical Layer Breakdown & Material Specification
6 Layers
1
Floor Finish (Parquet / Carpet)
P4
10 mm
λ: 0.14 W/mK
μ: 40
Cfl-s1
Lightweight floor finish
2
Fermacell Dry Screed Interlocking Elements
P4
25 mm
λ: 0.32 W/mK
μ: 13
A2-s1,d0
High-strength dry screed gypsum-fibre element
3
Integrated Woodfiber / Mineral Impact Underlay
P4
20 mm
λ: 0.040 W/mK
μ: 5.0
A1
Integrated impact sound insulation layer
4
Subfloor Deck (18 mm OSB-3)
P2
18 mm
λ: 0.13 W/mK
μ: 50
D-s2,d0
Structural subfloor decking diaphragm
5
CFS Joists (C250 mm or 30 cm C90/C140 Truss) + Rockwool Fill
P1/P2
250 - 300 mm
λ: 0.035 W/mK
μ: 1.0
A1
Structural CFS floor joist cassette
6
Ceiling Lining (25 mm)
P4
25 mm
λ: 0.25 W/mK
μ: 10
A2-s1,d0
Resilient channel suspended ceiling
Scroll horizontally to view all layer parameters
6 Layers
| No | Material & Layer Specification | Thickness | Conductivity (λ) | Vapour / Sd | Fire Class | Delivery Package | Building Physics Function |
|---|---|---|---|---|---|---|---|
| 1 | Floor Finish (Parquet / Carpet) | 10 mm | 0.14 W/mK | 40 | Cfl-s1 | P4 | Lightweight floor finish |
| 2 | Fermacell Dry Screed Interlocking Elements | 25 mm | 0.32 W/mK | 13 | A2-s1,d0 | P4 | High-strength dry screed gypsum-fibre element |
| 3 | Integrated Woodfiber / Mineral Impact Underlay | 20 mm | 0.040 W/mK | 5.0 | A1 | P4 | Integrated impact sound insulation layer |
| 4 | Subfloor Deck (18 mm OSB-3) | 18 mm | 0.13 W/mK | 50 | D-s2,d0 | P2 | Structural subfloor decking diaphragm |
| 5 | CFS Joists (C250 mm or 30 cm C90/C140 Truss) + Rockwool Fill | 250 - 300 mm | 0.035 W/mK | 1.0 | A1 | P1/P2 | Structural CFS floor joist cassette |
| 6 | Ceiling Lining (25 mm) | 25 mm | 0.25 W/mK | 10 | A2-s1,d0 | P4 | Resilient channel suspended ceiling |
Floor 3: Wet-Room & Bathroom Acoustic Floor Assembly
Bathroom floor assembly engineered for upper storeys, featuring dual-layer waterproofing membrane, integrated linear drainage trap and acoustic decoupling to eliminate drain and footstep noise.
Double Tanking • Linear Drain • Acoustic Decoupling
Waterproof Rating
DIN 18534 Tanking Compliance
Slope Layer
1.5% - 2.0% Gradient to Linear Drain
Sound Insulation
58 dB
Ceiling Protection
Moisture-Resistant Suspended Board
CAD/CAM PRECISION • CROSS SECTION 1:1 VECTOR SPEC
ONLINE INTERACTIVE
Physical Layer Breakdown & Material Specification
7 Layers
1
Anti-Slip Ceramic Tiles + Epoxy Grout
P4
10 mm
λ: 1.30 W/mK
μ: 200
A1
Anti-slip wet room ceramic tiles
2
Double Liquid Waterproof Tanking Membrane
P4
2 mm
λ: 0.20 W/mK
μ: Sd=20 m
E
Continuous tanking membrane & corner tapes
3
Tapered Screed + Stainless Linear Drain Trap
P4
50 - 70 mm
λ: 1.30 W/mK
μ: 35
A1
Gradient drainage screed to floor waste
4
Waterproof Acoustic Underlay Mat
P4
20 mm
λ: 0.034 W/mK
μ: 150
E
High-load extruded polystyrene thermal board
5
Cement Particle / Waterproof Subfloor
P2
22 mm
λ: 0.25 W/mK
μ: 25
A1
Inorganic rot-proof cementitious subfloor board
6
CFS Joists (C250 mm or 30 cm C90/C140 Truss) + Rockwool
P1/P2
250 - 300 mm
λ: 0.035 W/mK
μ: 1.0
A1
Recessed CFS steel joist frame
7
Moisture-Resistant Green Gypsum Ceiling
P4
25 mm
λ: 0.25 W/mK
μ: 10
A2-s1,d0
Moisture & fire-rated lower ceiling assembly
Scroll horizontally to view all layer parameters
7 Layers
| No | Material & Layer Specification | Thickness | Conductivity (λ) | Vapour / Sd | Fire Class | Delivery Package | Building Physics Function |
|---|---|---|---|---|---|---|---|
| 1 | Anti-Slip Ceramic Tiles + Epoxy Grout | 10 mm | 1.30 W/mK | 200 | A1 | P4 | Anti-slip wet room ceramic tiles |
| 2 | Double Liquid Waterproof Tanking Membrane | 2 mm | 0.20 W/mK | Sd=20 m | E | P4 | Continuous tanking membrane & corner tapes |
| 3 | Tapered Screed + Stainless Linear Drain Trap | 50 - 70 mm | 1.30 W/mK | 35 | A1 | P4 | Gradient drainage screed to floor waste |
| 4 | Waterproof Acoustic Underlay Mat | 20 mm | 0.034 W/mK | 150 | E | P4 | High-load extruded polystyrene thermal board |
| 5 | Cement Particle / Waterproof Subfloor | 22 mm | 0.25 W/mK | 25 | A1 | P2 | Inorganic rot-proof cementitious subfloor board |
| 6 | CFS Joists (C250 mm or 30 cm C90/C140 Truss) + Rockwool | 250 - 300 mm | 0.035 W/mK | 1.0 | A1 | P1/P2 | Recessed CFS steel joist frame |
| 7 | Moisture-Resistant Green Gypsum Ceiling | 25 mm | 0.25 W/mK | 10 | A2-s1,d0 | P4 | Moisture & fire-rated lower ceiling assembly |
Floor 4: 30 cm Open-Web Lattice Truss Floor Engineered with C90 & C140 Profiles
Long-span structural steel open-web lattice truss floor spanning up to 8.0 meters without internal load-bearing columns, engineered from C90 mm and C140 mm profiles at 30 cm (300 mm) depth, allowing MVHR ventilation ducts and services to pass through without cutting structural elements.
8.0m Column-Free Span • Integrated MEP Openings
Clear Span
6.00 - 8.50 Metres
Services Routing
Ø 200 mm Pass-Throughs (Zero Cutting)
Truss Depth & Profiles
300 mm Open-Web CFS Trusses (C90 & C140)
Deflection Limit
L / 400 (Ultra-Rigid Deflection)
CAD/CAM PRECISION • CROSS SECTION 1:1 VECTOR SPEC
ONLINE INTERACTIVE
Physical Layer Breakdown & Material Specification
5 Layers
1
Floor Finish + Screed
P4
65 mm
λ: 1.30 W/mK
μ: 35
A1
Floating screed with UFH pipes
2
Acoustic Decoupling Mat
P4
20 mm
λ: 0.13 W/mK
μ: 50
D-s2,d0
Heavy-duty structural shear subfloor deck
3
Subfloor Deck (22 mm OSB-3)
P2
22 mm
λ: 50 W/mK
μ: Sonsuz
A1
Open-web steel lattice joist spanning up to 9m
4
30 cm Open-Web Lattice Trusses (C90 & C140 Profiles) + MVHR Routing
P1
300 mm
λ: 0.040 W/mK
μ: 1000
B-s1,d0
MEP ducts integrated through web voids
5
Resilient Ceiling Lining
P4
25 mm
λ: 0.25 W/mK
μ: 10
A2-s1,d0
Acoustic resilient suspended ceiling system
Scroll horizontally to view all layer parameters
5 Layers
| No | Material & Layer Specification | Thickness | Conductivity (λ) | Vapour / Sd | Fire Class | Delivery Package | Building Physics Function |
|---|---|---|---|---|---|---|---|
| 1 | Floor Finish + Screed | 65 mm | 1.30 W/mK | 35 | A1 | P4 | Floating screed with UFH pipes |
| 2 | Acoustic Decoupling Mat | 20 mm | 0.13 W/mK | 50 | D-s2,d0 | P4 | Heavy-duty structural shear subfloor deck |
| 3 | Subfloor Deck (22 mm OSB-3) | 22 mm | 50 W/mK | Sonsuz | A1 | P2 | Open-web steel lattice joist spanning up to 9m |
| 4 | 30 cm Open-Web Lattice Trusses (C90 & C140 Profiles) + MVHR Routing | 300 mm | 0.040 W/mK | 1000 | B-s1,d0 | P1 | MEP ducts integrated through web voids |
| 5 | Resilient Ceiling Lining | 25 mm | 0.25 W/mK | 10 | A2-s1,d0 | P4 | Acoustic resilient suspended ceiling system |
Insulated Raft Foundation & CFS Bottom Track Detail
Engineered foundation-to-wall junction preventing thermal bypass, capillary moisture ascent and air infiltration where the concrete raft meets cold-formed steel bottom tracks.
Ψ ≤ 0.010 W/mK • Thermal Bridge Free • DPC Barrier
Thermal Bridge (Ψ)
Ψ ≤ 0.010 W/mK (Passive House Certified)
Perimeter XPS Skirt
100 - 120 mm (Frost Depth 80 cm)
Damp-Proof Course
EPDM + Bituminous Damp-Proof Course
Structural Anchoring
M12 / M16 Corrosion-Resistant Chemical Anchors
Slab U-Value
0.12 - 0.14 W/m²K
CAD/CAM PRECISION • CROSS SECTION 1:1 VECTOR SPEC
ONLINE INTERACTIVE
Physical Layer Breakdown & Material Specification
6 Layers
1
Reinforced Concrete Raft Slab (C30/37)
Yerel / P1
250 - 300 mm
λ: 2.10 W/mK
μ: 100
A1
Structural reinforced concrete raft slab
2
Under-Slab & Edge High-Load XPS Insulation
Yerel / P3
100 - 150 mm
λ: 0.034 W/mK
μ: 150
E
Under-slab continuous high-load XPS thermal blanket
3
Bituminous Waterproofing Membrane + EPDM Gasket
P1/P2
6 mm
λ: 0.23 W/mK
μ: Sd>1500 m
E
DPC capillary moisture barrier & waterproofing
4
CFS Bottom Track (U-Track) + Chemical Resilient Anchors
P1
140 mm
λ: 0.14 W/mK
μ: 8000
A1 / B2
Seismic anchor connection with acoustic EPDM bed
5
Exterior Perimeter XPS + Dimpled Drainage Sheet
P3
120 mm
λ: 0.034 W/mK
μ: 150
E
Perimeter frost-skirt & splash-proof XPS insulation
6
Interior Floor EPS/Rockwool + Screed with Heating
P4
120 mm
λ: 0.035 W/mK
μ: 50
A1 / E
Internal floor thermal insulation & floating screed
Scroll horizontally to view all layer parameters
6 Layers
| No | Material & Layer Specification | Thickness | Conductivity (λ) | Vapour / Sd | Fire Class | Delivery Package | Building Physics Function |
|---|---|---|---|---|---|---|---|
| 1 | Reinforced Concrete Raft Slab (C30/37) | 250 - 300 mm | 2.10 W/mK | 100 | A1 | Yerel / P1 | Structural reinforced concrete raft slab |
| 2 | Under-Slab & Edge High-Load XPS Insulation | 100 - 150 mm | 0.034 W/mK | 150 | E | Yerel / P3 | Under-slab continuous high-load XPS thermal blanket |
| 3 | Bituminous Waterproofing Membrane + EPDM Gasket | 6 mm | 0.23 W/mK | Sd>1500 m | E | P1/P2 | DPC capillary moisture barrier & waterproofing |
| 4 | CFS Bottom Track (U-Track) + Chemical Resilient Anchors | 140 mm | 0.14 W/mK | 8000 | A1 / B2 | P1 | Seismic anchor connection with acoustic EPDM bed |
| 5 | Exterior Perimeter XPS + Dimpled Drainage Sheet | 120 mm | 0.034 W/mK | 150 | E | P3 | Perimeter frost-skirt & splash-proof XPS insulation |
| 6 | Interior Floor EPS/Rockwool + Screed with Heating | 120 mm | 0.035 W/mK | 50 | A1 / E | P4 | Internal floor thermal insulation & floating screed |
Roof 1: Ventilated Pitched Passive Roof
Dual-layer 320 mm cross-laid rockwool stopping winter heat loss, combined with 50 mm counter-batten air ventilation cavity that purges solar radiation before penetrating living quarters.
U = 0.09 W/m²K • 11h Phase Shift • Standing Seam / Tile
U-Value
0.09 W/m²K
Thermal Phase Shift
11.5 Hours (Summer Heat Protection)
Total Insulation
320 mm (200 + 120 mm Cross-Laid)
Airtightness
n50 ≤ 0.40 h⁻¹ (Continuous Membrane)
CAD/CAM PRECISION • CROSS SECTION 1:1 VECTOR SPEC
ONLINE INTERACTIVE
Physical Layer Breakdown & Material Specification
8 Layers
1
Roof Covering (Standing Seam Zinc/Steel or Tile)
P3
25 mm
λ: 0.22 W/mK
μ: Sonsuz
A1
Weather-proof titanium-zinc / standing seam metal
2
Ventilation Counter-Battens
P3
50 mm
λ: R=0.20 m²K/W
μ: 1.0
A1
Rear ventilation cavity dissipating summer heat
3
Breather Underlay Membrane
P3
0.6 mm
λ: 0.22 W/mK
μ: Sd=0.02 m
B-s1,d0
High-performance vapour-permeable underlayment
4
Roof Sheathing (18 mm OSB-3)
P2
18 mm
λ: 0.13 W/mK
μ: 50
D-s2,d0
Structural roof decking withstanding snow/wind loads
5
CFS Trusses + 200 mm Rockwool
P1/P2
200 mm
λ: 0.034 W/mK
μ: 1.0
A1
First-tier mineral wool insulation between CFS trusses
6
Cross Battens + 120 mm Cross Rockwool
P2
120 mm
λ: 0.034 W/mK
μ: 1.0
A1
Cross-laid insulation eliminating truss thermal bridges
7
Smart Vapour & Airtight Membrane
P2
0.5 mm
λ: 0.20 W/mK
μ: Sd=0.25-25 m
E
Variable vapour control & airtightness membrane
8
Ceiling Service Zone + Double Gypsum (25 mm)
P4
65 mm
λ: 0.25 W/mK
μ: 10
A2-s1,d0
Internal service zone protecting airtight layer
Scroll horizontally to view all layer parameters
8 Layers
| No | Material & Layer Specification | Thickness | Conductivity (λ) | Vapour / Sd | Fire Class | Delivery Package | Building Physics Function |
|---|---|---|---|---|---|---|---|
| 1 | Roof Covering (Standing Seam Zinc/Steel or Tile) | 25 mm | 0.22 W/mK | Sonsuz | A1 | P3 | Weather-proof titanium-zinc / standing seam metal |
| 2 | Ventilation Counter-Battens | 50 mm | R=0.20 m²K/W | 1.0 | A1 | P3 | Rear ventilation cavity dissipating summer heat |
| 3 | Breather Underlay Membrane | 0.6 mm | 0.22 W/mK | Sd=0.02 m | B-s1,d0 | P3 | High-performance vapour-permeable underlayment |
| 4 | Roof Sheathing (18 mm OSB-3) | 18 mm | 0.13 W/mK | 50 | D-s2,d0 | P2 | Structural roof decking withstanding snow/wind loads |
| 5 | CFS Trusses + 200 mm Rockwool | 200 mm | 0.034 W/mK | 1.0 | A1 | P1/P2 | First-tier mineral wool insulation between CFS trusses |
| 6 | Cross Battens + 120 mm Cross Rockwool | 120 mm | 0.034 W/mK | 1.0 | A1 | P2 | Cross-laid insulation eliminating truss thermal bridges |
| 7 | Smart Vapour & Airtight Membrane | 0.5 mm | 0.20 W/mK | Sd=0.25-25 m | E | P2 | Variable vapour control & airtightness membrane |
| 8 | Ceiling Service Zone + Double Gypsum (25 mm) | 65 mm | 0.25 W/mK | 10 | A2-s1,d0 | P4 | Internal service zone protecting airtight layer |
Roof 2: Flat Terrace Passive Roof & Parapet Junction
Continuous warm roof assembly where rigid PIR/rockwool wraps around the parapet without thermal interruption, capped with root-resistant TPO waterproofing membrane and drip flashings.
U = 0.10 W/m²K • TPO/EPDM Membrane • 2% Slope
U-Value
0.10 W/m²K
Waterproofing
TPO / EPDM (2.0 mm Hot-Air Welded)
Slope Layer
2% Tapered PIR / EPS Slope Insulation
Parapet Ψ
Ψ ≤ 0.015 W/mK
CAD/CAM PRECISION • CROSS SECTION 1:1 VECTOR SPEC
ONLINE INTERACTIVE
Physical Layer Breakdown & Material Specification
5 Layers
1
Pedestal Pavers / Decking
P4
30 mm
λ: 0.15 W/mK
μ: 50
Bfl-s1
Pedestal paver or composite decking system
2
TPO / EPDM Waterproofing Membrane
P3
2 mm
λ: 0.25 W/mK
μ: Sd>1500 m
E
Hot-air welded root-resistant TPO membrane
3
Rigid PIR / Rockwool Tapered Insulation
P3
200 mm
λ: 0.022 W/mK
μ: 60
B-s2,d0
Tapered high-performance insulation directing runoff
4
Foil-Faced Vapour Barrier (Sd > 1500 m)
P2
4 mm
λ: 0.20 W/mK
μ: Sd>1500 m
E
Aluminium-foil faced zero-vapour transmission layer
5
CFS Roof Joists + 22 mm OSB Deck
P1/P2
220 mm
λ: 0.13 W/mK
μ: 50
A1 / D-s2,d0
Load-bearing CFS roof joists and decking
Scroll horizontally to view all layer parameters
5 Layers
| No | Material & Layer Specification | Thickness | Conductivity (λ) | Vapour / Sd | Fire Class | Delivery Package | Building Physics Function |
|---|---|---|---|---|---|---|---|
| 1 | Pedestal Pavers / Decking | 30 mm | 0.15 W/mK | 50 | Bfl-s1 | P4 | Pedestal paver or composite decking system |
| 2 | TPO / EPDM Waterproofing Membrane | 2 mm | 0.25 W/mK | Sd>1500 m | E | P3 | Hot-air welded root-resistant TPO membrane |
| 3 | Rigid PIR / Rockwool Tapered Insulation | 200 mm | 0.022 W/mK | 60 | B-s2,d0 | P3 | Tapered high-performance insulation directing runoff |
| 4 | Foil-Faced Vapour Barrier (Sd > 1500 m) | 4 mm | 0.20 W/mK | Sd>1500 m | E | P2 | Aluminium-foil faced zero-vapour transmission layer |
| 5 | CFS Roof Joists + 22 mm OSB Deck | 220 mm | 0.13 W/mK | 50 | A1 / D-s2,d0 | P1/P2 | Load-bearing CFS roof joists and decking |
Window Detail A: Head & Concealed Blind Box
Concealed external venetian blind (raffstore) box recessed directly into exterior insulation with high-performance back-insulation, eliminating lintel thermal bridges.
Ψhead ≤ 0.015 W/mK • Integrated Blind Box • Zero Thermal Bridge
Head Thermal Bridge (Ψ)
Ψ ≤ 0.015 W/mK
Blind Box Insulation
40 mm High-Efficiency PIR (λ=0.022)
Internal Airtight Tape
Pro Clima Contega Solido SL
CAD/CAM PRECISION • CROSS SECTION 1:1 VECTOR SPEC
ONLINE INTERACTIVE
Physical Layer Breakdown & Material Specification
6 Layers
1
Exterior Render & Stop Bead
P3
10 mm
λ: 0.75 W/mK
μ: 35
A2-s1,d0
Exterior render with plaster stop drip bead
2
Concealed Motorized Raffstore / Venetian Blind Box
P3
130 mm
λ: 0.18 W/mK
μ: Sonsuz
A1
Concealed motorized Venetian blind box
3
High-Performance PIR Thermal Backer (λ=0.022)
P3
40 mm
λ: 0.022 W/mK
μ: 60
B-s2,d0
High-performance PIR thermal bridge shield
4
CFS Double C140 Structural Box Lintel
P1
140 mm
λ: 50 W/mK
μ: Sonsuz
A1
Engineered cold-formed steel header / box lintel
5
3-Tier RAL Window Head Sealing Tapes
P3
Standart
λ: 0.035 W/mK
μ: Sd=0.05 - 15m
B1 / E
RAL 3-tier airtight & weather-tight sealing tapes
6
Passive House Certified Triple-Glazed Top Frame
P3
88 mm
λ: 0.11 W/mK
μ: Sonsuz
B2
Passivhaus certified triple-glazed window frame
Scroll horizontally to view all layer parameters
6 Layers
| No | Material & Layer Specification | Thickness | Conductivity (λ) | Vapour / Sd | Fire Class | Delivery Package | Building Physics Function |
|---|---|---|---|---|---|---|---|
| 1 | Exterior Render & Stop Bead | 10 mm | 0.75 W/mK | 35 | A2-s1,d0 | P3 | Exterior render with plaster stop drip bead |
| 2 | Concealed Motorized Raffstore / Venetian Blind Box | 130 mm | 0.18 W/mK | Sonsuz | A1 | P3 | Concealed motorized Venetian blind box |
| 3 | High-Performance PIR Thermal Backer (λ=0.022) | 40 mm | 0.022 W/mK | 60 | B-s2,d0 | P3 | High-performance PIR thermal bridge shield |
| 4 | CFS Double C140 Structural Box Lintel | 140 mm | 50 W/mK | Sonsuz | A1 | P1 | Engineered cold-formed steel header / box lintel |
| 5 | 3-Tier RAL Window Head Sealing Tapes | Standart | 0.035 W/mK | Sd=0.05 - 15m | B1 / E | P3 | RAL 3-tier airtight & weather-tight sealing tapes |
| 6 | Passive House Certified Triple-Glazed Top Frame | 88 mm | 0.11 W/mK | Sonsuz | B2 | P3 | Passivhaus certified triple-glazed window frame |
Window Detail B: Jamb & Bracket Installation
Out-of-stud bracket installation positioning the window frame directly in line with the exterior insulation layer to preserve isothermal line continuity without cold bridging.
Ψjamb ≤ 0.010 W/mK • In-line EWI Placement • 3-Tier RAL
Jamb Thermal Bridge (Ψ)
Ψ ≤ 0.010 W/mK (Passive House Certified)
Mounting Position
In-Line EWI Bracket Installation
RAL 3-Tier Seal
External Wind + Core Foam + Internal Vapor Tape
CAD/CAM PRECISION • CROSS SECTION 1:1 VECTOR SPEC
ONLINE INTERACTIVE
Physical Layer Breakdown & Material Specification
5 Layers
1
EWI Facade & Jamb Overlap (30 mm)
P3
120 + 30 mm
λ: 0.035 W/mK
μ: 1.0
A1
Continuous EWI overlapping window frame by 30mm
2
Structural Bracket Bracket / Subframe Profile
P3
80 mm
λ: 0.040 W/mK
μ: 30
E
Out-of-stud bracket system placing frame in insulation
3
CFS Structural Jamb Stud (C140)
P1
140 mm
λ: 50 W/mK
μ: Sonsuz
A1
Primary vertical CFS jamb stud absorbing wind loads
4
3-Tier RAL Elastic PU Foam & Twin Sealing Tapes
P3
15 - 20 mm derz
λ: 0.036 W/mK
μ: Sd=0.03 - 20m
B1 / E
Flexible acoustic & airtight RAL joint seal
5
6-Chamber PVC/Alu Clad Passive House Frame (88 mm)
P3
88 mm
λ: 0.11 W/mK
μ: Sonsuz
B2
Passivhaus certified jamb profile (Ψjamb ≤ 0.010)
Scroll horizontally to view all layer parameters
5 Layers
| No | Material & Layer Specification | Thickness | Conductivity (λ) | Vapour / Sd | Fire Class | Delivery Package | Building Physics Function |
|---|---|---|---|---|---|---|---|
| 1 | EWI Facade & Jamb Overlap (30 mm) | 120 + 30 mm | 0.035 W/mK | 1.0 | A1 | P3 | Continuous EWI overlapping window frame by 30mm |
| 2 | Structural Bracket Bracket / Subframe Profile | 80 mm | 0.040 W/mK | 30 | E | P3 | Out-of-stud bracket system placing frame in insulation |
| 3 | CFS Structural Jamb Stud (C140) | 140 mm | 50 W/mK | Sonsuz | A1 | P1 | Primary vertical CFS jamb stud absorbing wind loads |
| 4 | 3-Tier RAL Elastic PU Foam & Twin Sealing Tapes | 15 - 20 mm derz | 0.036 W/mK | Sd=0.03 - 20m | B1 / E | P3 | Flexible acoustic & airtight RAL joint seal |
| 5 | 6-Chamber PVC/Alu Clad Passive House Frame (88 mm) | 88 mm | 0.11 W/mK | Sonsuz | B2 | P3 | Passivhaus certified jamb profile (Ψjamb ≤ 0.010) |
Window Detail C: Sill & Sub-Sill Drainage Trough
Sub-sill secondary waterproofing drainage pan beneath the external aluminium sill that safely discharges wind-driven water out of the building without penetrating the wall core.
Ψsill ≤ 0.015 W/mK • Secondary Drainage • Thermal Sub-sill
Sill Thermal Bridge (Ψ)
Ψ ≤ 0.015 W/mK
Secondary Drainage
EPDM / Self-Adhering Waterproof Trough
Sub-Frame Insulation Profile
High-Density Purenit Sub-Sill (λ=0.07)
CAD/CAM PRECISION • CROSS SECTION 1:1 VECTOR SPEC
ONLINE INTERACTIVE
Physical Layer Breakdown & Material Specification
5 Layers
1
External Aluminium Sill with Drip Edge
P3
2 mm
λ: 160 W/mK
μ: Sonsuz
A1
Aluminium sill with 40mm projection & drip edge
2
Sub-Sill Waterproof Drainage Tray
P3
1.5 mm
λ: 0.20 W/mK
μ: Sd>500 m
E
Secondary waterproof sub-sill drainage pan/tray
3
High-Strength Thermal Base Profile (Purenit)
P3
50 mm
λ: 0.070 W/mK
μ: 40
B2
High-load rot-proof Purenit thermal sub-sill block
4
CFS Stud Sill Cripples (C140)
P1
140 mm
λ: 50 W/mK
μ: Sonsuz
A1
CFS sill cripple studs supporting window unit
5
Internal Sill Board + Airtight Seal
P4
20 mm
λ: 0.15 W/mK
μ: Sd=30 m
A2-s1,d0
Internal sill board with airtight vapour seal
Scroll horizontally to view all layer parameters
5 Layers
| No | Material & Layer Specification | Thickness | Conductivity (λ) | Vapour / Sd | Fire Class | Delivery Package | Building Physics Function |
|---|---|---|---|---|---|---|---|
| 1 | External Aluminium Sill with Drip Edge | 2 mm | 160 W/mK | Sonsuz | A1 | P3 | Aluminium sill with 40mm projection & drip edge |
| 2 | Sub-Sill Waterproof Drainage Tray | 1.5 mm | 0.20 W/mK | Sd>500 m | E | P3 | Secondary waterproof sub-sill drainage pan/tray |
| 3 | High-Strength Thermal Base Profile (Purenit) | 50 mm | 0.070 W/mK | 40 | B2 | P3 | High-load rot-proof Purenit thermal sub-sill block |
| 4 | CFS Stud Sill Cripples (C140) | 140 mm | 50 W/mK | Sonsuz | A1 | P1 | CFS sill cripple studs supporting window unit |
| 5 | Internal Sill Board + Airtight Seal | 20 mm | 0.15 W/mK | Sd=30 m | A2-s1,d0 | P4 | Internal sill board with airtight vapour seal |
Junction 1: Floor-to-Exterior Wall Rim Track Junction
Interface where intermediate floor joists bear onto the exterior load-bearing wall. Continuous external rockwool eliminates thermal bridging at the rim joist; internal smart vapour membrane is taped continuously around the floor cassette, complemented by an intumescent fire-stop cavity barrier.
Ψ ≤ 0.010 W/mK • Continuous EWI • Compartment Fire Stop
Thermal Bridge (Ψ)
Ψ ≤ 0.010 W/mK
Temp Factor (fRsi)
fRsi ≥ 0.75 (Condensation-Free)
Fire Resistance
REI 60 Inter-Storey Fire Stop Barrier
Airtightness
Continuous Red Airtight Line Tie-In Tape
CAD/CAM PRECISION • CROSS SECTION 1:1 VECTOR SPEC
ONLINE INTERACTIVE
Physical Layer Breakdown & Material Specification
6 Layers
1
Render + Continuous 120 mm Rockwool EIFS
P3
130 mm
λ: 0.035 W/mK
μ: 1.0
A1
Continuous external thermal blanket
2
External Structural Sheathing Board
P2
12.5 mm
λ: 0.25 W/mK
μ: 15
A1
Shear diaphragm transfer
3
CFS C200 Rim Track + Fire-Stop Cavity Barrier
P1/P2
200 mm
λ: 0.034 W/mK
μ: 1.0
A1 / EI60
Load transfer and compartment fire-stop
4
Acoustic EPDM Resilient Strip
P4
10 mm
λ: 0.12 W/mK
μ: 8000
B2
Impact noise and flanking vibration break
5
Structural Floor Deck & Screed with UFH
P4
70 mm
λ: 1.20 W/mK
μ: 30
A1
Thermal mass and comfort layer
6
Inter-Storey Airtight Loop Seal
P2
0.5 mm
λ: 0.20 W/mK
μ: Sd=25m
E
Continuous airtight envelope seal
Scroll horizontally to view all layer parameters
6 Layers
| No | Material & Layer Specification | Thickness | Conductivity (λ) | Vapour / Sd | Fire Class | Delivery Package | Building Physics Function |
|---|---|---|---|---|---|---|---|
| 1 | Render + Continuous 120 mm Rockwool EIFS | 130 mm | 0.035 W/mK | 1.0 | A1 | P3 | Continuous external thermal blanket |
| 2 | External Structural Sheathing Board | 12.5 mm | 0.25 W/mK | 15 | A1 | P2 | Shear diaphragm transfer |
| 3 | CFS C200 Rim Track + Fire-Stop Cavity Barrier | 200 mm | 0.034 W/mK | 1.0 | A1 / EI60 | P1/P2 | Load transfer and compartment fire-stop |
| 4 | Acoustic EPDM Resilient Strip | 10 mm | 0.12 W/mK | 8000 | B2 | P4 | Impact noise and flanking vibration break |
| 5 | Structural Floor Deck & Screed with UFH | 70 mm | 1.20 W/mK | 30 | A1 | P4 | Thermal mass and comfort layer |
| 6 | Inter-Storey Airtight Loop Seal | 0.5 mm | 0.20 W/mK | Sd=25m | E | P2 | Continuous airtight envelope seal |
Junction 2: Exterior 90° Corner Box-Stud Junction
Critical 90° building corner junction. The three-stud box arrangement is fully packed with mineral wool, external insulation boards overlap in a staggered toothed pattern to prevent thermal separation, and the internal vapour control layer is folded with an expansion pleat and corner airtight tape.
Ψcorner ≤ 0.010 W/mK • fRsi ≥ 0.78 • Interlocked Staggered EWI
Corner Ψ
Ψcorner ≤ 0.010 W/mK
Temp Factor (fRsi)
fRsi ≥ 0.78 (DIN 4108-2)
Exterior Corner
Interlocked Staggered Rockwool Corner
Interior Corner
Pleated Flexible Airtight Line Tape
CAD/CAM PRECISION • CROSS SECTION 1:1 VECTOR SPEC
ONLINE INTERACTIVE
Physical Layer Breakdown & Material Specification
6 Layers
1
Exterior Render with Mesh Corner Bead
P3
10 mm
λ: 0.75 W/mK
μ: 35
A2-s1,d0
Corner reinforcement bead preventing cracks
2
Staggered Interlocking Rockwool Slab (120 mm)
P3
120 mm
λ: 0.035 W/mK
μ: 1.0
A1
Toothed interlocking rockwool corner insulation
3
External Structural Sheathing (BoardeX)
P2
12.5 mm
λ: 0.25 W/mK
μ: 15
A1
Corner torsional shear diaphragm boards
4
3-Stud CFS Box Corner Stud Assembly
P1
140 mm
λ: 50 W/mK
μ: Sonsuz
A1
3-stud box corner CFS arrangement
5
High-Density Corner Rockwool Fill
P2
140 mm
λ: 0.034 W/mK
μ: 1.0
A1
Compact mineral wool filling internal box cavity
6
Pleated Smart Vapour Barrier & Corner Tape
P2
0.5 mm
λ: 0.20 W/mK
μ: Sd=25 m
E
Pleated smart vapour membrane with corner tape
Scroll horizontally to view all layer parameters
6 Layers
| No | Material & Layer Specification | Thickness | Conductivity (λ) | Vapour / Sd | Fire Class | Delivery Package | Building Physics Function |
|---|---|---|---|---|---|---|---|
| 1 | Exterior Render with Mesh Corner Bead | 10 mm | 0.75 W/mK | 35 | A2-s1,d0 | P3 | Corner reinforcement bead preventing cracks |
| 2 | Staggered Interlocking Rockwool Slab (120 mm) | 120 mm | 0.035 W/mK | 1.0 | A1 | P3 | Toothed interlocking rockwool corner insulation |
| 3 | External Structural Sheathing (BoardeX) | 12.5 mm | 0.25 W/mK | 15 | A1 | P2 | Corner torsional shear diaphragm boards |
| 4 | 3-Stud CFS Box Corner Stud Assembly | 140 mm | 50 W/mK | Sonsuz | A1 | P1 | 3-stud box corner CFS arrangement |
| 5 | High-Density Corner Rockwool Fill | 140 mm | 0.034 W/mK | 1.0 | A1 | P2 | Compact mineral wool filling internal box cavity |
| 6 | Pleated Smart Vapour Barrier & Corner Tape | 0.5 mm | 0.20 W/mK | Sd=25 m | E | P2 | Pleated smart vapour membrane with corner tape |
Junction 3: Thermally Broken Balcony / Self-Supporting Interface
Prevents massive thermal bypass caused by cantilevered steel beams penetrating the envelope. Engineered as either a 4-legged self-supporting steel balcony frame connected via elastomeric vibration pads, or a structural thermal break module (Isokorb type) with stainless steel tension tie-rods.
Ψ ≤ 0.020 W/mK • Purenit Thermal Block • Stainless A4 Anchor
Thermal Bridge (Ψ)
Ψ ≤ 0.020 W/mK
Structural Type
Self-Supporting Steel Tower / Thermally Broken
Fasteners
A4 (1.4401) Stainless Steel Tie Rods
Thermal Block
Purenit / Heavy-Load Elastomeric Thermal Pad
CAD/CAM PRECISION • CROSS SECTION 1:1 VECTOR SPEC
ONLINE INTERACTIVE
Physical Layer Breakdown & Material Specification
6 Layers
1
External Balcony Steel Joist & Decking
P3
150 mm
λ: 0.15 W/mK
μ: 50
Bfl-s1 / A1
Galvanized external balcony steel structure
2
High-Load Structural Thermal Break Block (Purenit)
P3
80 mm
λ: 0.070 W/mK
μ: 40
B2
Structural thermal break compression block
3
A4 Stainless Steel Tension Tie-Rod
P1
M16
λ: 15 W/mK
μ: Sonsuz
A1
Low-conductivity stainless steel tension tie-rods
4
Continuous Exterior Rockwool Slab
P3
120 mm
λ: 0.035 W/mK
μ: 1.0
A1
Continuous external mineral wool wrap behind flange
5
Primary CFS Column / Stud (S350GD)
P1
140 mm
λ: 50 W/mK
μ: Sonsuz
A1
Primary internal column taking cantilever loads
6
EPDM Anchor Penetration Boot & Airtight Seal
P2
1.5 mm
λ: 0.14 W/mK
μ: 8000
B2
EPDM penetration boot maintaining envelope seal
Scroll horizontally to view all layer parameters
6 Layers
| No | Material & Layer Specification | Thickness | Conductivity (λ) | Vapour / Sd | Fire Class | Delivery Package | Building Physics Function |
|---|---|---|---|---|---|---|---|
| 1 | External Balcony Steel Joist & Decking | 150 mm | 0.15 W/mK | 50 | Bfl-s1 / A1 | P3 | Galvanized external balcony steel structure |
| 2 | High-Load Structural Thermal Break Block (Purenit) | 80 mm | 0.070 W/mK | 40 | B2 | P3 | Structural thermal break compression block |
| 3 | A4 Stainless Steel Tension Tie-Rod | M16 | 15 W/mK | Sonsuz | A1 | P1 | Low-conductivity stainless steel tension tie-rods |
| 4 | Continuous Exterior Rockwool Slab | 120 mm | 0.035 W/mK | 1.0 | A1 | P3 | Continuous external mineral wool wrap behind flange |
| 5 | Primary CFS Column / Stud (S350GD) | 140 mm | 50 W/mK | Sonsuz | A1 | P1 | Primary internal column taking cantilever loads |
| 6 | EPDM Anchor Penetration Boot & Airtight Seal | 1.5 mm | 0.14 W/mK | 8000 | B2 | P2 | EPDM penetration boot maintaining envelope seal |
Junction 4: Barrier-Free Zero-Threshold Entrance Door Junction
Barrier-free 0-20 mm door threshold complying with DIN 18040 accessibility standard. Features a high-density Purenit sub-frame base insulation profile, an external linear slot drainage channel to eliminate ponding water ingress, and fully vulcanized EPDM sub-threshold tanking.
DIN 18040 Barrier-Free • Ψthreshold ≤ 0.020 W/mK • Drainage Channel
Threshold Ψ
Ψthreshold ≤ 0.020 W/mK
Accessibility
DIN 18040-2 (0-20 mm)
Drainage Channel
Linear Slotted External Drainage Channel
Sub-base Insulation
100 mm Purenit / XPS Structural Block
CAD/CAM PRECISION • CROSS SECTION 1:1 VECTOR SPEC
ONLINE INTERACTIVE
Physical Layer Breakdown & Material Specification
6 Layers
1
Linear Stainless Steel Drainage Grate & Gravel
P3
150 mm
λ: 15 W/mK
μ: Sonsuz
A1
Linear slot drainage channel capturing runoff
2
Thermally Broken Zero-Threshold Aluminium Profile
P3
20 mm
λ: 0.18 W/mK
μ: Sonsuz
B2 / A1
DIN 18040 barrier-free zero-threshold profile
3
Automatic Drop-Down Magnetic Wind/Rain Seal
P3
10 mm
λ: 0.12 W/mK
μ: 8000
E
Automatic magnetic drop-down seal for air & rain
4
Purenit High-Density Structural Thermal Base Profile
P3
100 mm
λ: 0.070 W/mK
μ: 40
B2
High-load Purenit thermal base sub-sill profile
5
Vulcanized EPDM Sub-Threshold Waterproof Tanking
P3
1.5 mm
λ: 0.14 W/mK
μ: 8000
E
Vulcanized EPDM tanking tray under threshold
6
Raft Foundation Concrete & Bottom Track & Screed
P1/P4
140 mm
λ: 2.10 W/mK
μ: 100
A1
Structural foundation raft and interior floor finish
Scroll horizontally to view all layer parameters
6 Layers
| No | Material & Layer Specification | Thickness | Conductivity (λ) | Vapour / Sd | Fire Class | Delivery Package | Building Physics Function |
|---|---|---|---|---|---|---|---|
| 1 | Linear Stainless Steel Drainage Grate & Gravel | 150 mm | 15 W/mK | Sonsuz | A1 | P3 | Linear slot drainage channel capturing runoff |
| 2 | Thermally Broken Zero-Threshold Aluminium Profile | 20 mm | 0.18 W/mK | Sonsuz | B2 / A1 | P3 | DIN 18040 barrier-free zero-threshold profile |
| 3 | Automatic Drop-Down Magnetic Wind/Rain Seal | 10 mm | 0.12 W/mK | 8000 | E | P3 | Automatic magnetic drop-down seal for air & rain |
| 4 | Purenit High-Density Structural Thermal Base Profile | 100 mm | 0.070 W/mK | 40 | B2 | P3 | High-load Purenit thermal base sub-sill profile |
| 5 | Vulcanized EPDM Sub-Threshold Waterproof Tanking | 1.5 mm | 0.14 W/mK | 8000 | E | P3 | Vulcanized EPDM tanking tray under threshold |
| 6 | Raft Foundation Concrete & Bottom Track & Screed | 140 mm | 2.10 W/mK | 100 | A1 | P1/P4 | Structural foundation raft and interior floor finish |
Junction 5: Airtight MEP Duct & Pipe Penetration Assembly
Airtight interface where 160 mm MVHR fresh air intake/exhaust ducts, heat pump refrigerant lines and soil pipes penetrate the steel building envelope. Utilizes factory EPDM airtight grommets (Pro Clima Roflex type) and aging-resistant solid acrylic tapes to safeguard the n50 ≤ 0.60 h⁻¹ Blower Door compliance.
n50 ≤ 0.60 h⁻¹ • EPDM Airtight Grommet • DIN 4108-7/11
Airtightness Class
Klasse 4 / n50 ≤ 0.60 h⁻¹
Grommet Material
Elastic EPDM Rubber Sleeve (400% Elongation)
Tape Standard
DIN 4108-7 & 11 Ageing-Resistant Certified
Pipe Insulation
25 mm Armaflex Anti-Condensation Insulation
CAD/CAM PRECISION • CROSS SECTION 1:1 VECTOR SPEC
ONLINE INTERACTIVE
Physical Layer Breakdown & Material Specification
7 Layers
1
External Stainless Steel Louver with Mesh
P3
30 mm
λ: 15 W/mK
μ: Sonsuz
A1
Stainless steel exterior louver with bird screen
2
Ø160 mm Spiral / Rigid MVHR Duct
P3/P4
Ø160 mm
λ: 50 W/mK
μ: Sonsuz
A1
Rigid galvanised spiral duct for MVHR fresh air
3
25 mm Closed-Cell Armaflex Anti-Condensation Insulation
P3/P4
25 mm
λ: 0.033 W/mK
μ: 10000
B-s3,d0
Closed-cell elastomeric anti-condensation sleeve
4
EPDM Weather-Tight External Facade Grommet
P3
1.5 mm
λ: 0.14 W/mK
μ: 8000
E
External weather-tight EPDM grommet collar
5
CFS Stud Frame & 140 mm Mineral Wool Cavity Fill
P1/P2
140 mm
λ: 0.034 W/mK
μ: 1.0
A1
Mineral wool insulation packed around duct sleeve
6
Internal EPDM Airtight Grommet Sealed to Vapour Membrane
P2
2 mm
λ: 0.14 W/mK
μ: Sd=25 m
E
Airtight EPDM grommet sealed onto vapour barrier
7
Solid Acrylic Pressure-Sensitive Airtight Tape
P2
60 mm Genişlik
λ: 0.20 W/mK
μ: Sd=25 m
B2
DIN 4108-11 certified solid acrylic tape
Scroll horizontally to view all layer parameters
7 Layers
| No | Material & Layer Specification | Thickness | Conductivity (λ) | Vapour / Sd | Fire Class | Delivery Package | Building Physics Function |
|---|---|---|---|---|---|---|---|
| 1 | External Stainless Steel Louver with Mesh | 30 mm | 15 W/mK | Sonsuz | A1 | P3 | Stainless steel exterior louver with bird screen |
| 2 | Ø160 mm Spiral / Rigid MVHR Duct | Ø160 mm | 50 W/mK | Sonsuz | A1 | P3/P4 | Rigid galvanised spiral duct for MVHR fresh air |
| 3 | 25 mm Closed-Cell Armaflex Anti-Condensation Insulation | 25 mm | 0.033 W/mK | 10000 | B-s3,d0 | P3/P4 | Closed-cell elastomeric anti-condensation sleeve |
| 4 | EPDM Weather-Tight External Facade Grommet | 1.5 mm | 0.14 W/mK | 8000 | E | P3 | External weather-tight EPDM grommet collar |
| 5 | CFS Stud Frame & 140 mm Mineral Wool Cavity Fill | 140 mm | 0.034 W/mK | 1.0 | A1 | P1/P2 | Mineral wool insulation packed around duct sleeve |
| 6 | Internal EPDM Airtight Grommet Sealed to Vapour Membrane | 2 mm | 0.14 W/mK | Sd=25 m | E | P2 | Airtight EPDM grommet sealed onto vapour barrier |
| 7 | Solid Acrylic Pressure-Sensitive Airtight Tape | 60 mm Genişlik | 0.20 W/mK | Sd=25 m | B2 | P2 | DIN 4108-11 certified solid acrylic tape |
Delivery Package Demarcation Lines:
P1: P1: Structural Light Gauge Steel Frame & Anchors
P2: P2: Frame + Sheathing + Cavity Insulation + Vapour Control
P3: P3: Weather-Tight Shell (Continuous EWI + Windows + Roof Waterproofing)
P4: P4: Internal Service Zone + Screed + Double Lining / Finishes
All cross-sections are engineered to Passive House Institute (PHI) standards, Eurocode 3 cold-formed steel rules and DIN 4108 condensation criteria. Contact our engineering desk for project-specific calculations.
Discuss This Section With Our EngineersStructural Framing & Thermal Envelope Comparison
Concrete, timber framing and SerVilla light gauge steel compared.
| Performance Parameter | Reinforced Concrete | Timber Frame | SerVilla CFS |
|---|---|---|---|
| Dimensional Stability | Formwork tolerances ±10-20 mm | Moisture warping, shrinkage | ±0.5 mm CNC precision (Zero warp) |
| Exterior Wall U-Value | 0.25 - 0.40 W/m²K | 0.16 - 0.22 W/m²K | 0.11 - 0.14 W/m²K (Passive House) |
| Thermal Bridge Coefficient (Ψ) | High (Balconies, columns, lintels) | Moderate (Ψ = 0.04 - 0.08 W/mK) | Ψ ≤ 0.010 W/mK (Continuous Wrap) |
| Airtightness (n50) | 1.50 - 3.00 h⁻¹ (Plaster cracks) | 0.80 - 1.50 h⁻¹ | ≤ 0.60 h⁻¹ (Blower Door Target) |
| Seismic Weight | Very heavy (~1000 kg/m²) | Light (~150 kg/m²) | Ultra-light (~80-120 kg/m²), ductile steel |
| Biological Resistance | Corrosion & moisture risks | Termites, mold, fungi risks | 100% Inorganic, Z275 zinc protection |
8 Advanced Envelope & Building Physics Modules
Explore cross-section drawings, Eurocode standards, U-value formulas and testing protocols.
Structure
S350GD • ±0.5 mm
Structural Steel Frame (CFS)
S350GD+Z275 roll-formed structural steel framing engineered to Eurocode 3 (EN 1993-1-3) & Eurocode 8 for 100+ year durability.
EN 1993-1-3
EN 10346
Passive House
Effizienzhaus Kfw
Envelope
U = 0.11 - 0.14 W/m²K
Wall Build-Ups & Cavity Layers
Multi-layer composite exterior walls achieving U = 0.11 - 0.14 W/m²K, 56 dB acoustic insulation and REI 90 fire protection.
EN ISO 6946
EN 13162
Passive House
Effizienzhaus Kfw
Thermal Physics
Ψ ≤ 0.010 W/mK
Thermal Bridge Elimination
Complete structural steel thermal decoupling preventing condensation and thermal bypass to ISO 10211 (fRsi >= 0.75).
EN ISO 10211
EN ISO 10077
Passive House
Effizienzhaus Kfw
Airtightness
n50 ≤ 0.60 h⁻¹
Airtightness & Vapor Control
Smart vapor-variable retarders, certified 50-year adhesive tapes and pre-planned penetration detailing to ISO 9972 (typical n50 = 0.35 h⁻¹).
EN ISO 9972
DIN 4108-7
Passive House
Effizienzhaus Kfw
Fenestration
Uw ≤ 0.80 • Ug = 0.50
Triple-Glazed Windows & Shading
Passive house certified frames with Uw <= 0.80 W/m²K, Ug = 0.50 argon glass, warm edge spacers and motorized Raffstores.
EN ISO 10077-1
EN 1279
Passive House
Minergie
Interfaces
U = 0.08 - 0.11 W/m²K
Roof Systems & Ground Perimeter
Insulated roof assemblies with 320 mm cross-laid rockwool, 11-hour thermal phase shift and slab perimeter XPS skirting.
EN 1991-1-3
EN 1991-1-4
Passive House
Effizienzhaus Kfw
MEP Systems
88% MVHR • SCOP 4.5
MVHR Ventilation & Heat Pumps
Mechanical ventilation with heat recovery (>= 85% efficiency), F7 pollen filters, whisper-quiet operation and inverter heat pumps.
EN 13141-7
DIN 1946-6
Passive House
Effizienzhaus Kfw
Certification
PHPP v10 • EPC A+
PHPP Modeling & Blower Door Testing
Independent verification: PHPP energy balancing, Eurocode structural calculation books and EN 13187 infrared thermography.
PHPP v10
DIN V 18599
Passive House
Effizienzhaus Kfw
Engineering Desk
Discuss Structural & Envelope Physics With Our Engineers
Our in-house structural engineers and building physicists model wind loads, seismic coefficients and thermal junctions for your project footprint. Connect directly for technical consultations, DWG/IFC reviews or U-value calculations.
Frequently Asked Questions
Essential answers regarding steel construction, energy targets and project delivery.
Cold-Formed Steel (CFS) delivers ±0.5 mm CAD/CAM factory precision with zero warping, shrinkage or settlement over time. Applying 100-160 mm of continuous exterior insulation wraps the steel entirely within the conditioned thermal shell, eliminating thermal bridges (Psi <= 0.010 W/mK). Paired with smart vapor retarders and triple-glazing, annual space heating remains below 15 kWh/m²a and airtightness achieves n50 <= 0.60 h⁻¹.
SerVilla framing is manufactured from S350GD structural steel hot-dip galvanized with Z275 (275 g/m² zinc) to EN 10346. Enclosed within a dry, vapor-controlled wall cavity (relative humidity under 60%), annual zinc loss remains under 0.1 µm. The structural design lifespan comfortably exceeds 100 years without maintenance.
Light steel superstructures weigh approximately 80-120 kg/m²—roughly 90% lighter than reinforced concrete. Because earthquake inertial force is directly proportional to mass (F = m · a), seismic base shear is reduced by over 80%. High ductility (Eurocode 8 q = 2.5 - 3.5) dissipates seismic energy through screw-fastened shear walls. Wind and snow loads are calculated to Eurocode 1.
Acoustics follow the mass-spring-mass principle. The multi-layer composite wall integrates external render, cementitious sheathing, 140 mm cavity rockwool, a decoupled 50 mm service cavity with mineral wool and dual-layer acoustic drywall. This layered density spectrum dampens street noise by 56 dB, outperforming single-skin masonry.
In buildings sealed to n50 <= 0.60 h⁻¹, balanced Mechanical Ventilation with Heat Recovery (MVHR) is essential for indoor air quality and energy savings. Counterflow enthalpy exchangers recover 85-92% of heat from stale extract air, pre-warming incoming fresh air filtered through ISO ePM1 70% (F7) pollen filters 24 hours a day.
Ceilings are the most vulnerable plane due to thermal convection during fire and continuous gravitational loads. A double layer (2x 12.5 mm = 25 mm) provides certified REI 60-90 fire containment, prevents sagging, and ensures >56 dB airborne and impact sound absorption. Strict installation specification: Joint filler must be applied to all joints of the 1st layer before installing the 2nd layer, with boards staggered by at least 40-50 cm to completely eliminate joint crack risks and air leakages.
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