Technical Specifications
6m / ~20ft MarsDome — 4-inch (106 mm) composite sandwich shell. R-28. 50-year design life. 20-year structural warranty — not prorated.
Company
| Parameter | Value |
|---|
| Founded | 2014 |
| Design heritage | The original nine-panel composite insulated dome |
Dimensions and Weight
| Parameter | Value |
|---|
| External diameter | 20.3 ft (6.2 m) |
| Internal diameter | 19.0 ft (5.8 m) |
| External height | 11.5 ft (3.5 m) |
| Internal height | 10.8 ft (3.3 m) |
| Floor area | ~320 sq.ft (~28 m²) |
| Panel thickness | 4-inch (106 mm) |
| Shell weight | ~2,650 lb (~1,200 kg) |
Panel Composition
| Layer | Material |
|---|
| External skin | 1.5 mm FRP — UV-resistant gelcoat finish |
| Core | 103 mm high-density closed-cell PU — flame-retardant |
| Vapor barrier | Aluminum foil interlayer |
| Internal skin | 1.5 mm FRP |
Thermal Performance
| Parameter | Value |
|---|
| Insulation value | R-28 |
| Core material | High-density closed-cell polyurethane (PU) |
| Thermal equivalent | Equivalent to a 5 ft thick brick wall |
| Operating range | −40°C to +50°C (−40°F to +122°F) |
Structural — Wind and Snow
| Parameter | Value |
|---|
| Wind rating | 200+ MPH (Cat 5 hurricane) |
| Snow load | 300 PSF |
| Structural basis | Composite shell geometry — omnidirectional stress distribution. No flat surfaces. No structural failure points. |
| Design framework | Compatible with IBC / ASCE 7 for local PE reconciliation |
| Snow shedding | 60° continuous curvature — snow slides off naturally |
Fire Performance
| Component | Specification |
|---|
| FRP skins | Flame-retardant formulation |
| PU core | Flame-retardant formulation |
| Vapor barrier | Aluminum foil fire barrier |
| Fire rating | Customizable to local code. Built-to-order per project specification. |
Acoustic Performance
| Parameter | Value |
|---|
| Sound reduction | 90 dB external → ~35 dB internal |
| Mechanism | 4-inch solid composite core absorbs external vibration |
Installation and Logistics
| Parameter | Value |
|---|
| Assembly time | ~3 hours (main shell) |
| Crew | 3–4 people, basic hand tools |
| Foundation | Timber platform or ground screws — zero excavation |
| Transport | Flat-pack modular panels |
| Container | 3–4 units per 40’ HQ container |
| Remote access | Modules suitable for helicopter sling (e.g., AS350) |
Maintenance
| Parameter | Value |
|---|
| Surface | Non-porous FRP gelcoat. Water rinse. No painting. No re-sealing. |
Warranty
| Parameter | Value |
|---|
| Structural warranty | 20 years — not prorated. If the shell fails under normal use (no external force, no impact, no natural disaster), the defective panel is replaced free of charge and we cover the shipping. |
| External force damage | Outside the warranty. Individual replacement panels can be purchased. |
Need a formal datasheet for permit submission?
Email us and we’ll send the complete PDF.