Solar Garden Roofs

Definition Solar Green Roofs - Solar Garden Roofs - Biosolar

All terms refer to the same concept, where photovoltaic (PV) modules or solar panels are integrated with a vegetated roof, also known as a green roof, on a single low-slope roof area. Clearly, these combinations are designed, engineered, and implemented in various ways depending on numerous factors such as roof size, roof layout, structural requirements, shading, and many other unique project elements.

The phrases Solar Green Roof and Solar Garden Roof clearly indicate their meaning, whereas BIOSOLAR is a popular buzzword primarily utilized in the U.K. and other English-speaking nations and always needs further explanation.

Benefits of Solar Garden Roofs One Roof, Double Payback

Green Roof Benefits

Green Roofs expand roof life by protecting the waterproofing, they can reduce air conditioning costs, may reduce winter heating costs, transform dead space into natural habitat, reduce city heat island effect, improve air quality, create biodiversity, prevent combined sewer overflow by reducing annual runoff between 55-90%, and neutralize acid rain effect.

Photovoltaic Benefits

Solar power systems, Photovoltaic Systems derive clean, pure energy from the sun. As a result, installing solar panel on buildings help to combat greenhouse gas emissions and reduces our collective dependence on fossil fuel. Local solar systems reduce transportation of energy through power lines. Moreover, solar panels on a roof reduce clear cutting of forests to install ground mounted PV.

Additional Benefits of Combination

Reduction of installation and maintenance costs. Likewise, combining of national, state, or local incentives programs. Because, solar Garden Roofs have better airflow and stay cooler there is an increase of output by over 10%.

Comparison of Green Roof Types

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Green Roof Type ➡️
Purpose	Stormwater Mitigation	Stromwater Mitigation, Biodiversity	Stormwater Mitigation, Biodiversity, Amenity Space
Vegetation	Moss-Herbs-Grasses	Grass-Herbs-Shrubs	Lawn/Perennials, Shrubs, Trees
Overall Depth	100-200mm 4 to 7 inches	150-250mm 6 to 10 inches	200-750mm + 8 to 30 inches +
Weight Range	100-200 kg/m² 20-40 Lb/sf	120-300 kg/m² 25-60 Lb/sf	220-800 kg/m² + 45-160 Lb/sf +
Ecological Compensation	🍃 🍃	🍃 🍃 🍃 🍃	🍃 🍃 🍃 🍃 🍃 🍃
Max. Rain Event	50-100mm 2"-4"	75-110mm 3"-4.2"	over 120mm over 4.2"
Cost	💵 💵	💵 💵 💵	💵 💵 💵 💵
Irrigation System	not recommended	partially	required
Solar Garden Roof	yes, optional with high ROI	requires custom tailoring	only as pergola in amenity space
Blue Green Roof	optional	optional	standard with Green Roof Technology