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Green Roof Gallery — Option B
Baan Suriya Chan · 3m flat green roof + 14° Snap Lock rise · AI-generated renderings + real-world inspiration
Green Roof 75 m²
Bluescope Snap Lock 14°
Japandi + Tropical
AI Renderings
Option B recap: 3m flat section at the west side (3.37m height) with extensive green roof, transitioning to a 14° Bluescope Snap Lock standing seam roof rising east toward the pool. Green roof area: 75 m² (3m × 25m). Solar panels on the 14° slope (~161 m²). E wall 5.0m, E eave 6.0m.
Option B — AI Renderings
Pool Side View (East) — Golden Hour
The most important view. From the pool looking west: the tall east wall with floor-to-ceiling glass opens onto the infinity pool. The standing seam roof rises behind, with the green roof section visible at the far (west) end. Tropical garden frames the scene.
E wall 5.0m
E eave 6.0m
Snap Lock 14°
Green roof behind
Aerial / Drone View
The hybrid roof is clearly visible from above: extensive green roof on the left (west), standing seam metal roof with solar panels on the right (east), pool alongside. Ko Pha Ngan ocean in background.
75 m² green
261 m² Snap Lock
Solar panels on slope
West Entrance Approach
Arriving from the west: the flat green roof section is at eye level (3.37m), covered in dense sedum and ornamental grasses. Behind it, the standing seam roof rises at 14° toward the taller east side. Japandi entry with limewash walls and wooden door.
Green roof at eye level
W eave 3.37m
Limewash + wood
Junction Detail — Green Roof to Snap Lock
Critical construction detail: the flat green roof (sedum, succulents) meets the standing seam metal roof at the transition point. Gravel drainage strip and perforated flashing at the junction. This is the detail Carlos and Yuki need to engineer carefully.
Sedum + succulents
Gravel drainage
Standing seam clips
Interior — Flat to Raked Ceiling Transition
Inside looking east: the cozy flat ceiling zone at 3.37m (warm wood lining, left) transitions to the dramatic 14° raked ceiling rising to 5.0m. Clerestory Powerlouvre windows at the peak flood the space with morning light. Micro-cement floor, pool view through glass.
Flat 3.37m
Raked to 5.0m
Wood lining boards
Powerlouvres
North Gable — Twilight
The most distinctive elevation: from the north, the flat+rise profile is fully visible. Green roof at left, standing seam rising to the right, warm interior glow through large windows. The pool reflects the twilight sky. This view shows why Option B creates such a unique architectural silhouette.
Green roof profile
14° rise
W 3.37m → E 5.0m
AI-generated renderings (Gemini) — for conceptual visualization only. Actual design by Eliya (architect) + Carlos (PM). Dimensions, materials, and layout are approximate.
Real-World Green Roof Inspiration
These real projects demonstrate green roofs working in tropical/warm climates, at residential scale, and with modern minimal aesthetics similar to what we're proposing for Baan Suriya Chan.
Ishigaki Earth Villa
Sou Fujimoto · Ishigaki Island, Japan
Circular luxury residence (9,900 m²) with a lush green roof featuring strategic openings overlooking coastal views. Tropical island setting, minimal Japanese aesthetic — the closest reference to our Japandi brief.
Tropical island + Japanese minimal + green roof
Rain Harvest Home
Valle Bravo, Mexico
Net-zero residential complex with a dramatic planted roof as the primary sustainable feature. Demonstrates green roof as both thermal insulation and water management at villa scale in a warm climate.
Net-zero + warm climate + villa scale
Villa Aa
C.F. Møller · Oslo Fjord, Norway
Residence with green roof following natural topography — flat green section transitioning to hard roof at slope. Very similar concept to our Option B flat+rise approach.
Flat green + sloped hard = hybrid roof
Villa KD45
Studio Symbiosis · New Delhi, India
Concrete villa with terraced green roof providing thermal protection and outdoor living space. Hot climate proof that green roofs provide meaningful cooling in tropical heat.
Hot climate + thermal cooling + residential
Cocoon (Bloomingdale School)
andblack design studio · India
Small-scale building (4,000 sq ft) with undulating turf-covered roof and sunken courtyard. Proves extensive green roofs work beautifully at a compact residential scale similar to our 75 m².
Small scale + extensive green roof
House Under The Hill
Nashtarood, Iran
Earth-sheltered dwelling that nearly disappears into the hillside with a living roof mirroring surrounding terrain. Shows how green roofs can make architecture feel immersed in nature — aligned with our "house immersed with nature" design principle.
Nature-immersed + living roof
Pinnacle@Duxton
Singapore (public housing)
Singapore public housing complex with green rooftops. Residents report lower energy bills and stronger sense of community. Tropical Southeast Asian proof of concept for extensive green roofs.
Tropical SEA + proven energy savings
Sika Thailand Green Roof Systems
Commercial supplier · Thailand
Sika offers commercial green roof waterproofing and drainage systems in Thailand. Worth checking with Carlos for local availability of membrane, drainage mats, and growing medium.
Thailand supplier + commercial systems
Sika Thailand →
Green Roof Specs for Our 75 m² Flat Section
Extensive Green Roof (Recommended)
Substrate depth6–15 cm
Weight (wet)80–150 kg/m²
Our load (75 m²)6,000–11,250 kg total
MaintenanceLow (2–3×/year)
IrrigationDrip system (dry season)
Roof slope≥1% for drainage
WaterproofingRoot-resistant membrane
Drainage layerDimple mat + filter cloth
Thermal Performance
Surface temp reduction−15 to −30°C vs bare roof
Indoor temp reduction−1 to −4°C
Heat transfer reductionUp to 84%
Stormwater retention50–80% rainfall absorbed
Noise reduction8–12 dB
Roof lifespan extension2–3× longer membrane life
UV protectionFull membrane shielding
Cooling system layerLayer 1 of 4 in Option B
Recommended Tropical Plants
For extensive green roof in zone 10–11 (tropical, Ko Pha Ngan). Low maintenance, drought-tolerant, shallow root.
| Plant | Type | Height | Why |
| Sedum mexicanum | Succulent | 5–10 cm | Heat tolerant, bright green carpet, very low maintenance |
| Sedum sarmentosum | Succulent | 5–15 cm | Fast spreading, tolerates tropical humidity |
| Aptenia cordifolia | Succulent ground cover | 5–10 cm | Red/pink flowers, heat loving, spreads quickly |
| Kalanchoe tomentosa | Succulent | 10–30 cm | Fuzzy silver leaves, very drought tolerant, visual texture |
| Delosperma lineare | Ice plant | 5–10 cm | Dense mat, bright flowers, handles extreme heat |
| Santisukia kerrii | Native Thai | 10–20 cm | Research-backed for Thai extensive green roofs |
| Dracaena cochinchinensis | Native Thai | 15–30 cm | Top performer in Thai green roof studies |
| Zoysia grass | Grass | 5–10 cm | Dense turf, low water, tropical adapted, visual softness |
Next steps for green roof:
1. Yuki to calculate structural loading for 75 m² at 150 kg/m² (worst case wet).
2. Carlos to check Sika Thailand for waterproofing + drainage system availability.
3. Consider local nursery visit for plant sourcing — native Thai species preferred.
4. Junction detail (green roof → Snap Lock) needs custom flashing design by Carlos/Yuki.
5. Drip irrigation line from house water supply for dry season (Dec–Mar).
Baan Suriya Chan · Option B: 3m flat + 14° Snap Lock rise.
Green roof: 75 m² (3m × 25m), extensive type, sedum + native Thai plants.
Renderings: AI-generated (Gemini) for conceptual visualization. Not to scale.
Thermal data: Castleton et al.,
tropical green roof studies.
Plant selection: Thai extensive green roof research,
MSU Extension.
Inspiration: Yanko Design Top 10 Green Roofs,
Architropics,
Sika Thailand.
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