Batroun, Lebanon
Casa Batroun
A single family house that implements bioclimatic passive building techniques. An award-winning project with BREEAM Excellent certification. The project relies on energy efficiency measures such as biomass boiler and solar water heaters in addition to efficient lighting.
Project info
- Construction phase
- Mixed of new construction or refurbishment
- Building type
- Single Family House (SFH)
- Detailed building type
- Single Family House (SFH) - detached
- Net floor area
- 172 m2
- Stories
- 2 stories
- Construction type
- Mixed construction
- Original construction year of the building
- 2014
- Project contact
- Maya Karkour
- Contact email address
- maya@ecoconsulting.net
Project team
- Developer(s)/owner(s)
- Private Family
- Architect(s)
- Maha Nasrallah
- Energy efficiency consultant(s)
- EcoConsulting
- HVAC consultant(s)
- Mechanica
- Building services
- Mechanica
Building Rating and Certifications systems
- Rating and certifications systems
- BREEAM
Building Envelope
External walls
- Description of construction
- GF Stone wall: lime-based paint, 20mm clay plaster, 80mm wood fibreboard insulation, 250mm sandstone FF Timber wall: lime-based paint, 20mm clay plaster, 80mm wood fibreboard insulation, 50mm air layer, 20mm Accoya cladding
- U-Value
- 0.416 W/(m²*K)
Roof
- Roof type
- Flat roof
- Description of construction
- Flat Roof: 22mm OSB, 20mm wood fibreboard insulation; 130mm Sheep wool, 22mm OSB, air layer, Accoya decking. Green Roof: 20mm Clay plaster; 22mm OSB, 130mm Sheep wool, 22mm OSB, 100mm soil
- U-Value
- 0.225 W/(m²*K)
Openings and windows
- Glazing type
- Double glazed
- U-Value glass
- 2.239 W/(m²*K)
- G-Value glass
- 0.7
- Frame material / description
- Wood
- U-Value frame
- 2.2 W/(m²*K)
- Overall u-value window
- 2.2 W/(m²*K)
- Description of construction
- 4 clear-12 air-4 low-e
Basement floor
- Description of construction
- NA
Technical Building Systems
Ventilation system
- Type of ventilation
- Free ventilation (windows)
- Description
- Natural cross ventilation strategy with ceiling fans in some rooms
Space heating system
- Primary Space heating system
- Biomass boiler (pellet, logwood, woodchip etc.)
- Description
- Wood pellet stoves
Water heater system
- Primary water heater system
- Solar Thermal collector on the roof
- Description
- Vacuum tube solar system
Lighting system
- Primary lighting system
- LED (Light emitting diode lamps)
- Efficiency
- 100
Shading devices
- Type of shading system installed
- Static (fix) shading systems as part of the building architecture (e.g. Maschrabiyya, porch roofs, pergolas)
- Description
- Window setbacks and overhangs
Final Energy Demand
- Energy carrier (1)
- Electricity
- Energy carrier (2)
- Biomass
- Annual lighting demand
- 6.6 kWh/(m²*a)
- Annual hot water demand
- 3.35 kWh/(m²*a)
- Total specific final energy demand
- 23.6 kWh/(m²*a)
Financial Aspects
- Financing sources
- Own
