Presentation on theme: "CRITERIA FOR GREEN BUILDINGS IN LEBANON"— Presentation transcript:
1 CRITERIA FOR GREEN BUILDINGS IN LEBANON Prepared by: The “Order of Engineers & Architects of Beirut” in collaboration with:Maya Karkour, Sara Jaber, Aram Yeretzian, Bassam Haber, Ziad Haddad & Wissam Tawil
2 Table of Contents Introduction Green Building Criteria Energy Water Use EfficiencyIndoor Environmental QualityEnvironmental Impact
3 A- Introduction Reasons to prepare the criteria Scope of the criteria Building Types Climatic ZonesFour Climatic Zones as defined in the Thermal Standard for Buildings in Lebanon
4 B. Green Building Criteria Water Use EfficiencyEnergyIndoor Environmental QualityEnvironmental Impact
5 1. Energy Building Envelope Energy Efficiency Elevators & Escalators Follow TSBL 2005 as issued by Ministry of Public Works & Transportation for insulation of walls, roofs, floors & glazed elementsMinimum energy efficiency of DX, chiller or boilers to follow Ashrae 90.1 – 2007Electric Hot Water Heaters to follow RT 2005 – art 58Elevators & EscalatorsElevators:Building with more than 4 floors, use VVVF technologyEscalators:Use on demand or reduce speed
6 Maximum Watts per square meter or linear meter Artificial LightingLighting Power Densities for building (Interior)Lighting Power Densities for building (Exterior)Building TypeMaximum averageWatts per square meter(W/m2) across total building areaCommercial/Public: Offices, Hotels, Resorts, Restaurants12Educational Facilities13Manufacturing Facility14Retail Outlets, Shopping Malls , Workshop16Warehouses9Building AreaMaximum Watts per square meter or linear meterUncovered parking lots and drives1.6 W/m2Walkways less than 3 meters wide3.3 W/linear meterWalkways 3 meters wide or greater2.2 W/m2Outdoor Stairways10.8 W/m2Main entries98 W/linear meter of door widthOther doors66 W/linear meter of door widthBuilding Facades2.2 W/m2 for each illuminated wall orsurface or 16.4 W/linear meter for eachilluminated wall or surface lengthEntrances and gatehouse inspection stations at guarded facilities13.5 W/m2
7 Occupancy / Motion Sensor Electronic Ballasts High frequency electronic ballast for fluorescent & Metal Halides conforming to IEC 60598Common lobbiesParkingCirculationStairsKeeping a max of 25 % of the normal lightingControl SystemHeat RecoveryIndependent temperature control for A/C per zone.Hotel room managementThermostatic valve for radiatorsOutside compensation recommended100 % FA AHU’s with heat recovery system.Heat recovery on generators for hotels, hospitals, industrial facilities of certain areas.
8 Insulation on Pipes & Duct Energy Metering As per Ashrae Standards for ducts & pipesElectric metering for building with multiple Tenant.Energy meters for building supplied with central chilled water or heating system.Renewable EnergyIn single family houses, Solar Panels to cover a min 70% of yearly hot water demand.Residential building up to 4 stories, Solar Panels to cover min 30 % of yearly hot water demand.In case of excessive external lighting above the allowable rate in Residential Building, PV panels shall be used to cover this excess.
9 2. Water Use Efficiency A. Building Water Use Reduction Efficient Sanitary FixturesCondensate Drain RecoveryBuilding with more than 200 tons, 80 % of condensate to be recuperated for irrigation, toilet flushing or cooling towers in zones 1 & 2Automatic shut off for public faucetsFixture typeMaximum Flow RateApplicable toToiletsDual Flush 3Lit / 6Litall toilets in buildingHand Wash Faucets6 Lit / Min2/3 of faucets in buildingShowerheads9 Lit / Min2/3 of showerheads in buildingKitchen Sinksall kitchen sinks in buildingUrinals1 Lit / Flush or waterlessall urinals in building
10 B. Site Water Use Reduction Efficient IrrigationRain Water HarvestingControllers with moisture sensors.Drip or subsoil water delivery system.Obligatory all single family houses, and collected from at least 25 % of roofs & external terraces.Used for irrigation, toilet flushing, or general cleaning.
11 3. Indoor Environmental Quality Natural VentilationMechanical VentilationOpenable area is 4 % of the internal floor area.Opposite sides if between 7 & 15 m depth.Follow Ashrae for occupied areas.Follow decree 7964 for parkings.
12 VOC Emissions – Paints & Coatings Thermal ComfortLower LimitUpper LimitCOOLINGDry bulb Temperature23°C26°CRelative Humidity40%60%HEATING18°C22°C30%95 % of the yearVOC Emissions – Paints & CoatingsLow Volatile Organic Compound for min 80 % of the paints internal surface.Comply with: Green Seal GS-11EN 13300:2001EU Directive 2004/42/CE21
13 Daylighting Acoustic Performance Comply with Lebanese Construction Law Comply with Lebanese Official Gazette 1269/1996
14 4. Environmental Impact 4.1 Impact of Construction Works Dust ControlErosion & Sedimentation ProtectionTop soil shall be covered by sheets to prevent air pollutionSilt fences to be installed around the site to prevent annoyance to neighboring properties and land.
15 Protection of Ecological Features Noise Control Trees, hedges, ponds, water sources, wet land, not within building foot print shall be protectedOperate during the hours permitted by the applicable local regulations.Construction PollutionConstruction Waste ManagementDumping of excavated soil or construction waste onto adjacent sites is prohibited.Mandatory for Grade A project as defined in Decree 7964
16 4.2 Landscape Vegetated Walls Vegetated Roofs Planters 25 % of landscape area shall be vegetated.In case of no landscape area, then 10 % of site area shall be vegetated on roofs, walls or planters.
17 4.3 Heat Island Effect All buildings should have another 25 % either: - vegetated- Covered with high SRI material- Shaded by SRI material- Shaded by solar panels- Or a combination of the aboveRoofs shall have 50 % of the non tech area:VegetatedCovered with high SRIShaded with high SRIShaded by solar panelsOr a combination of the aboveSRI: Index combining reflectivity & emissivity.
18 Night Time Light Pollution Operational Waste Min 2 containers or bins for recyclable wasteDownward lights are requiredRefrigerant ImpactZero Ozone depleting potential (ODP)
19 Conclusion:A good start for implementing Green Philosophy in the construction law.Neutralize the impact of the increase in exploitation rate.Enhance the indoor quality environment.Enhance the construction quality.Reduce the energy and water consumption.