New Construction Report Project: Northside Dining Terrace Client: Drexel University Date: May 25, 2010 Northside Dining Terrace pg. 1 Table of Contents Introduction Page 5 Section A: Project Management A.1 – Integrated Design Process A.2 – Environmental Purchasing A.3 – Commissioning Plan – Documentation A.4 – Emergency Response Plan Section B: Site B.1 – Development Area B.2 – Minimization of Ecological Impact B.3 – Enhancement of Watershed Features B.4 – Enhancement of site ecology Section C: Energy C.1 – Building Energy Performance C.2 – Energy Demand Minimization C.3 – Energy-efficient Systems C.4 – Renewable Energy Sources C.5 – Energy-efficient Transportation Section D: Water D.1 – Water Performance Target D.2 – Water Conserving Features Section E: Resources, Building Materials and Solid Waste E.1 – Systems and Materials with Low Environmental Impact E.2 – Materials that Minimize Consumption of Resources E.3 – Re-use of Existing Building E.4 – Building Durability, Adaptability and Disassembly E.5 – Re-use and Recycling of Construction/Demolition Waste E.6 – Facilities for Recycling and Composting Section F: Emissions, Effluents and Other Impacts F.1 – Minimization of Air Emissions F.2 – Minimization of Ozone-depleting Refrigerants F.3 – Control of Surface Run-off and Prevention of Sewer Contamination F.4 – Pollution Reduction Section G: Indoor Environment G.1 – Effective Ventilation G.2 – Source Control of Indoor Pollutants G.3 – Lighting G.4 – Thermal Comfort G.5 – Acoustic Comfort Page 8 Page 10 Page 11 Page 18 Page 20 Page 24 Page 25 Northside Dining Terrace pg. 2 Total Points Possible Percent Achieved 50 36% 20 10 15 5 115 Project Management Integrated design process Environmental purchasing (including energy-efficient products) Commissioning Emergency response plan 70% 30 30 20 35 360 Areas and Sub-Areas of Assessment Site Development area (site selection, development density, site remediation) Ecological impacts (erosion control, reduced heat island effect, minimal light pollution) Watershed features Site ecology enhancement 48% 100 114 Energy Energy performance Reduced demand (space optimization, microclimatic response to site, daylighting, envelope design, metering) 66 20 80 100 Integration of energy-efficient systems Renewable energy (on-site renewable energy technologies) Energy-efficient transportation (public transportation, cycling facilities) 22% 30 45 Water Water target Water conservation strategies (sub-metering, devices, cooling towers, landscaping and irrigation strategies) 10 100 Reduction of off-site treatment of water (gray water system, on-site wastewater treatment) 29% 40 Resources – Systems Options Analysis and Building Material Selection Systems/materials life cycle impact (selection of building materials based on their low environmental impact) 15 Minimal use of non-renewable resources (reused, recycled, local, low-maintenance materials, certified wood) 15 15 5 10 75 Reuse of existing buildings Building durability, adaptability and disassembly Reuse and recycling of demolition waste Recycling facilities 95% 15 20 10 25 Emissions, Effluents & Other Impacts Air emissions (low emission burners) Ozone depletion Prevention of surface run-off and sewer contamination Pollution reduction strategies (storage tanks, PCBs, radon, asbestos, pest management, hazardous materials) 200 73% 55 Indoor Environment Ventilation (intakes, ventilation rates, flushing, delivery, CO2 monitoring, controls, parking areas, ease of maintenance) 45 Source control of pollutants (mold, AHU, humidification, Legionella cooling towers/hot water, building materials, local exhaust) Lighting (visual access, heights and depths of perimeter spaces, daylight factor, ballasts, glare, task lighting, controls) Thermal comfort (thermal conditions meet ASHRAE 55) 50 20 30 1000 Acoustic comfort (zoning, transmission, vibration control, acoustic privacy, reverberation, mechanical noise) 55% Total Points Available Northside Dining Terrace pg. 2 Green Globes Rating System The Green Globes rating program was designed to evaluate and rate the energy and environmental design of buildings. The goals of the program are to guide environmental performance integration in the design of buildings and identify opportunities to save energy and water, reduce waste and prevent water, air and land pollution during their management and operation, based upon the key elements of eco-efficiency. The program involves a graduated rating system designed to recognize buildings that have achieved various levels of energy and environmental performance. In general, the designations reflect the following objectives for each rating level: Northside Dining Terrace pg. 2 INTRODUCTION Northside Dining Terrace, located in Philadelphia, Pennsylvania is a 1 story building. · · · · · The client is Drexel University The architect is EM architecture The mechanical engineer is D.J. Ververelli The electrical engineer is D.J. Ververelli The structural engineer is The Harmon Group Northside Dining Terrace pg. 3 BASIS OF THE ASSESSMENT AND DISCLAIMER This assessment is based on a review of construction documentation (drawings and specifications) as well as a post-construction site assessment. Those who participated in this project should check that the descriptions contained in this report are an accurate reflection of the information provided, and should inform the assessor if they are aware of any inaccuracies or additional information that would affect the assessor’s decision to award or withhold a rating. The Green Building Initiative (for itself and as agent for its staff) shall not be liable whether in contract, in tort or otherwise for any loss or damage sustained as a result of using or relying on the information contained in this report. Northside Dining Terrace pg. 4 Percentage Scores Percentage of points achieved for each module is as follows: Management 36% Site 70% Energy Water Resources 49% 22% 29% Emissions Indoor Environment 95% 73% Northside Dining Terrace achieved an overall score of 55%. RATING: Two Green Globes Northside Dining Terrace pg. 5 PROJECT MANAGEMENT POLICIES AND PRACTICES Rating Earned: 36% This section evaluates the extent to which an integrated design process and a team approach have been used to generate design solutions that will meet the needs identified in previous stages of the project delivery process. It also addresses the purchasing policy and development of commissioning documentation and an emergency response plan. Northside Dining Terrace achieved a score of 36% on the Green Globes™ rating scale for its integrated design process, integration of environmental purchasing, a commissioning plan and emergency response plan. Integrated design process Summary of Your Achievements An integrated design process was used for the design development. A team approach was used throughout the progressive stages of the design process. It involved collaboration of the architect, engineers, consultants, and other stakeholders. Opportunities for improvement RECOMMENDATION Recommendations Supplementary Information Use green design facilitation to support green design integration. The role of the Green Design Facilitator at the Construction Documents Stage is to review how the environmental requirements are being met during the design development and preparation of working drawings, and to liaise with the Project Authority. Environmental Purchasing Opportunities for improvement RECOMMENDATION Recommendations Supplementary Information Incorporate aspects of "green" specifications, such as those from the GreenSpec® menu or the Reference Specifications for Energy and Resource Efficiency. At the Construction Documents Stage, ensure that "green" options are implemented wherever possible. GreenSpec® includes sustainable and environmentally responsible choices for construction materials, components, systems, elements and work practices. At the Construction Documents Stage, ensure that “green” options are implemented wherever possible. Northside Dining Terrace pg. 6 RECOMMENDATION Recommendations Supplementary Information Select products which have less environmental impact, including energy-saving, high-efficiency equipment and materials. Purchasing energy-efficient equipment and environmentally benign materials can have an impact on the facility's operating expenses, especially with regard to energy-intensive equipment or parts of the building envelope such as windows and doors. Commissioning Plan - Documentation Summary of Your Achievements A best-practice, project commissioning plan is being implemented that includes the following: “Design Intent” and “Basis of Design” documentation has been reviewed. Opportunities for improvement RECOMMENDATION Recommendations Supplementary Information Engage a Commissioning Authority. Commissioning serves to verify the performance of completed systems and determine whether or not they comply with the design concept and the specified performance ratings. The commissioning process should have begun during the early stages, where decisions would have been made as to which systems would be commissioned. Later, the performance requirements should have been established. At the Construction Documents Stage, the commissioning plan, and construction documents should be reviewed, preferably by someone other than the Designer. Include Commissioning requirements in the Construction Documentation. Develop a Commissioning Plan. Emergency response plan Opportunities for improvement RECOMMENDATION Recommendations Supplementary Information In Division 1, state the project's environmental goals and procedures with regard to emergency response. An emergency response plan should be in place prior to project start-up to mitigate the likelihood of environmental emergencies occurring Develop detailed procedures for quick and effective action in the event of an emergency. These should include up-to-date contacts to obtain assistance promptly and to report the emergency. There should also be a protocol to assess the risks of re-occupying the building in the case of evacuation. Ensure Northside Dining Terrace pg. 7 on-site during site preparation or construction. that there is adequate equipment on-site to deal with environmental emergencies, including personal protection equipment that is easily and quickly accessible. A site map showing the location of environmentally significant features and equipment can help to plan emergency response. This is helpful for emergency crews. SITE Rating Earned: 70% This section evaluates the design strategies for optimal use of the site based on information about the site, and in response to the requirements set out at the previous stages of the project delivery process. Northside Dining Terrace achieved a score of 70% on the Green Globes to minimize the building's impact on the site. TM rating scale for the site design and enhancement measures Development area Summary of Your Achievements The building is constructed on an existing serviced site. The building is constructed on land that is neither a wetland nor a wildlife corridor. The design accommodates the building's functions while minimizing disturbance to the site's topography, soils and vegetation. Minimization of ecological impact Summary of Your Achievements Erosion control measures are in place in accordance with best management practices (BMPs) to protect the site during construction as well as over the long term. At least 30% of impervious surfaces will be shaded to avoid creating a heat island. A combination of green roof and high albedo materials (reflectance of at least 0.65 and emissivity of at least 0.9) will help to avoid creating a heat island. Obtrusive aspects of exterior lighting such as, light trespass and sky glow will be avoided to preserve the nocturnal sky. Enhancement of watershed features Opportunities for improvement Northside Dining Terrace pg. 8 RECOMMENDATION Recommendations Supplementary Information Provide a stormwater management plan to prevent damage to project elements, including vegetation, on this and neighboring sites. Include an engineering design of the site drainage pattern, including volume calculations and site management strategies. Aim for no increase in runoff. Or, if the site already consists of more than 50% impervious surface in its pre-development state, aim for a reduction of 25% in storm water run-off. Develop design strategies that minimize disturbances to the site's watershed. Control stormwater run-off and promote groundwater percolation for irrigation and to recharge aquifers. Minimize stormwater run-off into rivers, streams, lakes or sewers by: minimizing hardscapes and maximizing the use of permeable, pervious surface paving materials, storing water in catchment systems (barrels or cisterns), increasing vegetation to maximize the total amount of water consumed by plants, integrating storage area ponds, surface stormwater retention areas, rock marshes, drywells and infiltration basins where water can seep into the ground, grading the site to direct water flow, and landscaping the site to divert water away from the building. Enhancement of site ecology Summary of Your Achievements The site-planning documents specify a naturalized landscape using native trees, shrubs and ground cover, with minimal lawn. ENERGY Rating Earned: 49% This section evaluates the design strategies to minimize the building's energy consumption using the site's features and microclimate, space optimization, the integration of energy-efficient systems and renewable energy, and alternatives to automobile transportation. Northside Dining Terrace received a score of 49% based on the assessment of best-design practices and energy performance on the TM Green Globes rating scale for energy efficiency. Building energy performance Northside Dining Terrace achieved a sub-score of 0% for its energy consumption. Energy consumption target figures were not entered. Opportunities for improvement Northside Dining Terrace pg. 9 RECOMMENDATION Recommendations Supplementary Information Ensure that the projected energy consumption meets or exceeds the preset energy-use targets. Include the energy performance requirements in the specifications. Simulations should have been done at the Design Development Stage, using tools such as EQuest or DOE 2.0 programs. Modeling of different HVAC and lighting options should have been reviewed and refined to determine the most efficient solution to meet or exceed the ASHRAE 90.1-2004 standard. This standard focuses on improving the energy consumption performance of commercial buildings based on both the building envelope and the building systems and equipment. Control strategies and sizing of the systems should have been carefully evaluated to avoid over-specification. Post occupancy operation and maintenance requirements should also have been considered. Energy demand minimization Summary of Your Achievements Space optimization The floor area has been optimized to efficiently fulfill the building's functional and spatial requirements while minimizing the amount of space that needs to be heated and cooled (i.e. kitchen and utility equipment is separated from other areas ). Response to microclimate and topography The building is located and oriented on the site to optimize the effect of microclimatic conditions for heating or cooling (i.e. building is south facing to optimize the heat in winter months with deep overhang to minimize heat gain in summer months. ). Opportunities offered by the site topography, and design measures – including location and orientation – are optimized to provide shelter against wind and snow deposition. Integration of daylighting The amount of daylighting is optimized through building orientation and window-to-wall size ratios (i.e. window wall optimizes natural light with provision of sun shading ). The indicated visible transmittance(VT) of the window glazing is 0.7. Northside Dining Terrace pg. 10 Building envelope The thermal resistance of the exterior enclosure meets Building Energy Code levels. The reported thermal resistance (R) of the roof is 30. Window glazing with a low U value and window treatments that enhance interior thermal comfort are specified. The indicated U value of the window glazing is 0.29. There are measures to prevent groundwater and/or rain penetration into the building. Opportunities for improvement Space Optimization RECOMMENDATION Recommendations Supplementary Information If possible, phase the construction process. Buildings are often designed with additional space to accommodate potential or future expansion, based on projections that may or may not prove accurate. Resources can be spared if entire parts of a project are never built. By planning to build in phases, only the parts of a project that are needed at a given time will be constructed. Drawings should indicate the various potential phases. Response to microclimate and topography RECOMMENDATION Recommendations Supplementary Information Include measures to maximize natural ventilation and cooling or to integrate hybrid ventilation. These might include, operable windows, trickle vents, openings located to Building form, occupied spaces and fenestration should be optimized so that, site permitting, the building can benefit from natural or hybrid ventilation to provide natural cooling during the time of the year when outdoor air is cooler Northside Dining Terrace pg. 11 catch prevailing breezes, or horizontal pivot windows. Consider the room depth and height ratios and the possibility of open floor plans to optimize cross-ventilation. than indoor air. Integration of daylighting RECOMMENDATION Recommendations Supplementary Information Provide specifications for daylighting systems, integrated electrical lighting and daylighting control systems. An account of the daily and seasonal variations should be included in the construction documents. Provide the modeling results and manufacturers' information on the lighting controls. Develop an operating manual to ensure that appropriate adjustments can be made to the lighting systems to account for daily and seasonal changes. Natural light entering the building should be integrated with electrical light, taking into account daily and seasonal variations. Zones with daylighting potential should have light-sensing controls to adjust electric lighting in response to available daylight. Failure to provide these can produce less than optimal results. For example, on days when daylighting alone can provide sufficient light for most office activities, occupants may experience eye strain due to excessive light levels if electrical lights are not dimmed. Energy is also wasted on unnecessary artificial lighting and the air-conditioning needed to counter the heat from lights. Daylight control systems can save up to 60% in lighting energy. They include dimming and switching. Dimming controls vary the light output over a large range to provide the desired light level, while switching controls turn individual lamps off or on as required. Dimming systems require electronically dimmable ballasts. Although they are more expensive than switching systems, they achieve the largest savings and do not abruptly change light levels as do switching systems. Note that the use of daylight control systems is still relatively rare in America. Care must be taken to ensure proper design and commissioning, otherwise energy-savings may be minimal and the controls are likely to be de-activated. Building envelope RECOMMENDATION Recommendations Supplementary Information Northside Dining Terrace pg. 12 Detail the continuous air/vapor barrier and show how it will avoid thermal bridging, provide thermal comfort to the occupants and prevent condensation in the building. Include product data on air/vapor barrier materials. A continuous air barrier helps to ensure the integrity of the building envelope, thereby eliminating thermal bridging and preventing condensation, avoiding air leakage, reducing the energy needed for heating and cooling, and avoiding water damage to the building envelope, interior walls and ceilings. Airtight commercial construction involves a systematic approach to providing continuity of an air barrier in the building envelope, including areas where dissimilar materials meet. This is of particular significance to residential buildings. Follow the best air/vapor barrier practices by: Ensuring that drawings provide air barrier detailing of roof to wall air barrier connection and other details such as between different wall types, air barrier penetrations, and wall to glazing systems. Considering the building occupancy requirements for relative humidity, temperature, and interior pressures in the design of the air and vapor barrier systems. Considering material compatibility issues. Requiring mock-ups and mock-up testing for air and vapor barrier systems. Requiring lab testing for air and vapor barrier systems. Requiring field review and testing by a building envelope specialist. Optimizing the mechanical systems been for designed building air leakage. Review is required for the most likely areas for air leakage, such as joints between the roof and wall air barriers, the area between the wall air barrier and the windows and doors, and between the wall air barrier and the grade beam, and, in residential buildings - balconies. Other high risk areas are penetrations of the wall and roof air barriers by electrical, plumbing, telecommunication services, trusses, beams, chimneys and ventilation ducts; joints at the floor level in multi-story buildings; and poor quality or poorly adjusted weather strips on doors and windows. Northside Dining Terrace pg. 13 Energy-efficient systems Summary of Your Achievements The building's energy efficiency is increased through the use of energy-efficient equipment. The design includes the following: Energy-efficient lighting fixtures, lamps and ballasts Lighting controls Energy-efficient HVAC equipment Energy-efficient hot water service systems Building automation systems Energy-efficient motors Opportunities for improvement RECOMMENDATION Recommendations Supplementary Information Consider integrating the following energy efficient equipment: Detailed specifications for the integration of energy-efficient lighting fixtures and electronic ballasts should be included in the construction documentation. Appropriate controls such as switching, dimming, and/or occupancy sensors and timers to minimize electric lighting usage should also be specified. Develop detailed specifications for an efficient HVAC system and other energy-efficient equipment such as high-efficiency or condensing boilers or other higher-efficiency heating systems and chillers, heat recovery units, appliances, and hot water service systems. Specify hot water-savings devices. Provide vertical circulation to reduce the need for elevator use, or integrate the use of high-efficiency elevators. Consider specifying high-efficiency motors and variable speed drives on all major equipment. BAS operating manuals for all such systems must be provided. Design in flexibility to take advantage of emerging technologies such as fuel cells. High efficiency (modulating or condensing) boilers High efficiency chillers Variable speed drives Energy-efficient elevators Document all energy consuming building systems and include a statement of the design intent and operational recommendations. These should consist of: descriptive information about each system detailing its function, design capability, performance characteristic and distribution arrangement; schematic, control and sequence of operation diagrams; stop/start and adjustment mechanisms, changeover, start-up and shutdown sequences; commissioning requirements and procedures. Northside Dining Terrace pg. 14 Renewable sources of energy Opportunities for improvement RECOMMENDATION Recommendations Supplementary Information Consider integrating renewable energy sources. Provide details of the complete system and calculations that demonstrate the renewable energy contribution. The overall energy efficiency of the building can be vastly improved through the use of renewable energy sources such as solar, wind, biomass, geothermal or photovoltaic energy. Detailed specification for the integration of renewable or other on-site energy generation systems should be included in the construction documents. Ensure that an operating manual for every process is provided. Energy-efficient transportation Summary of Your Achievements Public transport/car-pooling Public transport is easily accessible, within 0.3 miles and with service at least every 15 minutes during rush hours. Cycling facilities Safe, covered storage areas with fixed mountings for securing bicycles against theft are included in the design. Changing facilities for building tenants and staff are included in the design. Opportunities for improvement Public transport/car-pooling RECOMMENDATION Recommendations Supplementary Information Include features that will promote car/van pooling, such as sheltered waiting areas and priority parking. Limit car-parking and provide priority parking for carpooling, and sheltered waiting areas. During the operation of the building, incentives such as developing an employee carpool database, subsidizing parking for carpooling/vanpooling and providing priority parking, will motivate occupants to share transportation. Northside Dining Terrace pg. 15 WATER Rating Earned: 22% This section evaluates the design strategies to conserve treated water and minimize the need for off-site treatment of water. Northside Dining Terrace achieved a score of 22% on the Green Globes minimize its use. TM rating scale for water consumption and measures to Water performance Opportunities for improvement RECOMMENDATION Recommendations Supplementary Information Ensure that the projected water consumption meets the water-use targets. The levels of water performance for the commercial building range from the average of 5.0 gallons/ft²/year water usage in the private sector, through to less than 1.6 gallons/ft²/year for some of the most water efficient buildings, according to the data obtained from the Building Owners and Managers Association (BOMA). The average amount of water used for facilities with water savings initiatives is 2 gallons/ft²/year. In multi-family buildings the range is between more than 70 gpcd (gallons per capita) for water inefficient buildngs to less than 50 gpcd for most efficient ones. Water-conserving features Summary of Your Achievements Minimal consumption of potable water The design includes the following of water-efficient equipment: water-saving devices or proximity detectors on urinals low flush toilets (less than 1.6 gallons/flush) water-saving fixtures on faucets (less than 2.0 gallons/minute) and showerheads (less than 2.4 gallons/minute) Minimal use of water for cooling towers There are no wet cooling towers. Northside Dining Terrace pg. 16 Opportunities for improvement Minimal consumption of potable water RECOMMENDATION Recommendations Supplementary Information In addition to a water meter to measure the total amount of water supplied to the building, major water consumption operations such as boilers, cooling tower make-up lines, water-cooled airconditioning units or special laboratory operations, should also be individually monitored. Metering provides continuous information of system efficiency and can give early warnings of system problems such as leaks. When each tenancy is accountable for water use, this can motivate occupants to cut back. RECOMMENDATION Recommendations Supplementary Information Consider integrating the following water efficient equipment: Specify the implementation of water-saving fixtures and appliances such as: Other water-saving plumbing fixtures and appliances include 2.4 gallons/minute lowflow kitchen faucets, domestic dishwashers which use 10 G per cycle or less, and commercial dishwashers (conveyor) which use 120 gallons/hour. Provide manufacturers' data and proven-in-use documentation. infrared faucet sensors and delayed action shut-off or automatic mechanical shut-off valves; low-flush toilets at less than 1.6 gallons/flush; waterless urinals; lavatory faucets with flow restrictors for a maximum rate of 2.0 gallons/minute, metering faucets at 0.25 G per cycle; and, where applicable, low-flow kitchen faucets at 2.4 gallons/minute; low-flow showerheads at 2.4 gallons/minute; domestic dishwashers that use 10 G per cycle or less; (or commercial dishwashers (conveyor) which use 120 gallons/hour); etc. Minimal use of water for irrigation RECOMMENDATION Recommendations Supplementary Information Specify irrigation using non-potable water (i.e. captured rainwater or recycled site water). If rainwater will be used, ensure that there is a system for catchment, storage and distribution. Collected rainwater and graywater or treated wastewater can be reused for irrigation. Rainwater can be collected with a cistern or in rain barrels at each rainwater leader or downspout. Manufactured rain barrels range from 40 to 80 G. They should incorporate a “roof washer” or a “first flush” device, to avoid contamination by bird droppings and dust, an inlet screen and an overflow outlet. Northside Dining Terrace pg. 17 Most roofing materials are suitable for rainwater collection, except for redwood, cedar or treated wood shingles and shakes and asphalt shingles, which leach toxic materials when wet. Food-producing gardens should not be watered with rainwater from roofs covered with these materials. Consider graywater reuse technologies, if local codes permit, and if sufficient water is generated from baths, showers, bathroom sinks and washing machines. Wastewater can only be used after proper treatment to remove solids and to meet predefined and/or regulated bacterial levels. Graywater collection and irrigation systems must be considered early in the design process, since they will affect landscaping design and the size and placement of mechanical spaces. RESOURCES, BUILDING MATERIALS AND SOLID WASTE Rating Earned: 29% This section evaluates the selection and specification of environmental requirements for construction materials. Documentation to ascertain the environmental sourcing of materials such as timber and timber products, blocks, bricks, plasterboards, paints etc. used on the project should be available. Northside Dining Terrace achieved a score of 29% on the Green Globes reduction and site stewardship. TM rating scale for managing resources through waste Systems and materials with low environmental impact Opportunities for improvement RECOMMENDATION Recommendations Supplementary Information Specify materials with low embodied energy. Provide evidence that the foundations, floor, structural system (column and beam, or post and beam combinations), roof and envelope (cladding, windows etc.) assembly materials have undergone a life cycle assessment. The specifications should reflect the results of the “best run” life cycle assessment of the building's materials. “Best run” here means the specification with the lowest life cycle impact out of the number of the alternatives investigated. In Division 1, state the project's environmental goals and the general environmental procedures with regards to material selection and specification. A lifecycle assessment (LCA) is considered to be the most reliable way to calculate and compare the cradle-to-grave environmental effects of common building materials. Designers can use modeling tools such as Athena™ to examine the lifecycle environmental effects of a complete structure or of individual assemblies, and can experiment with alternative designs and different material mixes to arrive at the best environmental footprint. The objective of the simulation is to aid the Designer in selecting building assemblies with the lowest reported impact in terms of energy consumption, air and water toxicity index, global warming potential (GWP), ecologically weighted resource use, and solid waste emissions. Materials that minimize consumption resources Summary of Your Achievements Northside Dining Terrace pg. 18 Used building materials and components will be integrated in the construction (i.e. Reuse of existing countertops and point of sale millwork, walk in cooler, walk in box, merchandize display units - all items within the "Market area" except for new Subway equipment. ). Opportunities for improvement RECOMMENDATION Recommendations Supplementary Information Specify materials high in recycled content such as crushed aggregate, carpets with fibers made of recycled content, ceiling tiles and metal products. Avoid materials where the recycled content may compromise the IAQ or service performance. Reference recycled-content standards, regulations and requirements. Provide material specifications which reflect the results of a life cycle assessment and post-consumer content. In Division 1, state the project's environmental goals and the general environmental procedures that address materials with recycled-content. In eachCSI/Masterformat technical section, provide specific recycled-content percentages for postindustrial or post-consumer material. Document the rationale for using recycled materials, in terms of recycled content, embodied energy, durability, etc. For public bid projects, provide three different manufacturers. Where practical, use materials high in recycled content. True recycled content consists of materials that have been used and then recycled (i.e. postconsumer), as opposed to materials that are recycled within the industry itself. Examples of post-consumer materials are crushed aggregate carpets with recycled content in the fibers and backing, ceiling tiles and metal products. Avoid recycled materials where the recycled content or recycled product could compromise IAQ or service performance. RECOMMENDATION Recommendations Supplementary Information Maximize the use of locally manufactured products and materials (produced within 500 miles of the site) as they generally require less energy for transportation and should therefore be cost competitive over materials from a more distant source. A target of 25% of the total percentage of products or materials should be locally manufactured or be from renewable sources. Documentation of locally manufactured materials should reflect the results of their life cycle assessment. Transportation consumes energy and generates pollution. Therefore locally produced materials (i.e. those manufactured within a 250-500 mile radius of the project site) are likely to have lower embodied energy. Since price reflects transportation charges, they may also be cheaper than those produced farther away. Weight and volume minimization can also significantly lower the environmental impact of transportation. Consider foldable or stackable designs and final product assembly at the retail location or by the end-user. Where feasible, specify renewable materials such as cork, and bamboo. Before making the final selection, conduct a life cycle assessment using a tool such as Athena™ Environmental Resource Guide or BEES™. Design strategies to avoid waste during construction can also save on transportation. For example, modularity and standard sizes promote efficient use of materials and construction methods, and reduce off-cuts of lumber, wallboard, and other materials. Consider renewable sources such as wheat, cotton, wood, cork, and bamboo. The final selection should be based on a life cycle assessment using a tool such as Athena™ Environmental Resource Guide or BEES™, to evaluate the environmental impacts of extracting, harvesting, or mining raw materials and shipping them. Northside Dining Terrace pg. 19 RECOMMENDATION Recommendations Supplementary Information Specify that only wood products from certified and sustainable sources will be used. Provide references to local, provincial, federal, and industry certified wood standards, regulations, and requirements. Provide a written confirmation from suppliers regarding the composition of the woodbased panel products and/or certification ((SFI), (FSC), (ATFS), (CSA-SFM)) that the wood products have been monitored from origin to end consumer. In Division 1, state the project's environmental goals and the general environmental procedures that address certified sustainable wood. In Divisions 6, 9, and 12, list at least three different suppliers of certified wood. The use of tropical hardwoods should be avoided, as their preservation is critical for maintaining the biodiversity and survival of some of the most varied ecosystems on earth. Where structural/envelope systems require wood products, these should be certified through sustainable forestry management programs such as the Sustainable Forestry Initiative (SFI), the Forest Stewardship Council (FSC), the American Tree Farm System (ATFS) and the CSA International Sustainable Forest Management program (CSA-SFM). The American forest industry actively supports the development of consensusbased sustainable forestry certification standards to help ensure that wood used in products is derived from environmentally sound and sustainable forestry operations. Under these programs, forests or woodlands are inspected to see if they are being managed according to criteria with regard to the scale and intensity of forest management operations, taking into account their uniqueness and ecological fragility. Reuse of existing buildings Building durability, adaptability and disassembly Summary of Your Achievements Building assemblies and materials have been specified for their durability and low maintenance (i.e. Exposed concrete, epoxy flooring, stainless steel toilet partitions, stainless steel kitchen equipment. ). The construction documents indicate that the design promotes building adaptability (i.e. Dining area can be closed off from the Market area as needed based on hour of operation and demand. Dining area can also be used for functions and events while closing off the market area. The divider allows operating hours to be flexible, saving on utilities. ). Opportunities for improvement RECOMMENDATION Recommendations Supplementary Information Specify structural, cladding and detailing materials, mechanical systems, and components that facilitate building disassembly. Where possible, use standard sized construction materials. The use of adhesives should be minimized and reversible mechanical fasteners used wherever practical. Show evidence in the design report, design drawings and specifications documentation that the There are many design strategies to accommodate building disassembly for reuse and recycling. Modular structural systems, cladding systems and nonload bearing wall systems should be selected that facilitate disassembly. Components should be used that can be assembled or fastened in a manner that reduces deconstruction waste and facilitates reassembly into new construction. Snap-release connectors, friction joints, bolts, screws and clips are preferable, as they do not require sealants. Homogeneous materials such Northside Dining Terrace pg. 20 building design allows for easy disassembly. as concrete are easier to separate and recycle rather than composite materials such as reinforced plastics, carpets, fibers and backings. Reuse and recycling of construction/demolition waste Opportunities for improvement RECOMMENDATION Recommendations Supplementary Information Provide a waste management/reduction plan and strategy, including a waste audit and a waste diversion strategy report. In Division 1, state the project's environmental goals and procedures that address the development of a Construction Waste Recycling Program to recycle as much of the construction waste building material as possible. Include demolition and construction waste reuse and recycling in Division 1 and 2 of the specifications. Include the reuse, recycling and recovery of demolition materials in Division 2 of the specifications. The specifications should either identify a separate contractor to remove reusable items, or require the demolition contractor to remove items for recycling and recovery. Schedule a walk-through with a deconstruction company to identify items that are valuable. Allow sufficient time in the construction schedule for the careful separation of reusable and recyclable items from waste. Waste can be reduced during construction by: Drafting specifications that emphasize waste reduction and other environmentally sound construction procedures; Incorporating contract clauses dealing with these issues and make the contractor aware that they will be enforced; Discussing on-site waste and recycling issues with contractor. Where the site has an existing building or space slated for demolition, the following strategies should be implemented: Carry out a waste audit and identify the materials and equipment within the building that can be dismantled, sold, reused in the renovation or recycled. List construction materials that are to be source-separated at the construction site for reuse and recycling such as ferrous and non-ferrous metals, doors, demountable partitions, cabinets, tracks and blinds, carpets, windows, limestone, brick, speed tile (crushed or filled), and mechanical items such as wiring, receptacles, switches, power poles, conduits and fixtures. Propose contractual means of ensuring that all recyclable materials and equipment are diverted from landfill. Items to be salvaged can be removed by the Demolition Contractor or another firm. Review the condition and potential for exposure to dangerous substances and lead-base paint, and make recommendations. Develop a hazardous materials survey and removal plan. Review the scope and alternatives for asbestos removal and develop an Asbestos Management Plan. An asbestos specialist should supervise. Facilities for recycling and composting Summary of Your Achievements Northside Dining Terrace pg. 21 The construction documents indicate that there will be 100 ft² of space designated for the storage of recyclable waste. EMISSIONS, EFFLUENTS AND OTHER IMPACTS Rating Earned: 95% This section evaluates the strategies to avoid or minimize air emissions, ozone-depleting substances, effluents, pesticides, and hazardous materials. Note that it is assumed that halon-containing materials will not be introduced into the building. Northside Dining Terrace achieved a score of 95% on the Green Globes environmental impacts. TM rating scale for emissions, effluents and other Minimization of air emissions Summary of Your Achievements Low-NOx boilers and furnaces are specified (i.e. heat input of 199,999 BTU/hour). Minimization of ozone-depletion Summary of Your Achievements A refrigeration system has been specified that avoids ozone-depleting substances (ODS) and potent industrial greenhouse gases (PIGG) (i.e. R 410 A). The ozone-depleting potential of the refrigerant is equal to 0. The building's air-conditioning system will comply with the requirements of the Safety Code for Mechanical Refrigeration, ASHRAE 15 -1994. Control of surface run-off and prevention of sewer contamination Summary of Your Achievements There are measures to intercept and/or treat contaminated water to prevent pollutants including toxic materials, oils, and suspended materials from entering sewers or waterways (i.e. Grease traps on kitchen sanitary system ). Pollution minimization Summary of Your Achievements Northside Dining Terrace pg. 22 Integrated pest management Components, materials and the protection of structural openings are specified to avoid infestation by pests. Storage and control of hazardous materials There will be secure, appropriately-ventilated storage areas for occupants to store hazardous and flammable materials. Opportunities for improvement Control of other pollutants (PCBs, asbestos, radon) RECOMMENDATION Recommendations Supplementary Information Provide a plan to remove or encapsulate all friable asbestos. Removal is the preferred option. Encapsulating asbestos is an acceptable and costeffective option, as long as it does not compromise the health and safety of workers and occupants. For retrofits performed on buildings designed prior to 1981, the design team must ensure that a survey for asbestos be done for any part of the building being retained. Any friable asbestos found must be removed or encapsulated. INDOOR ENVIRONMENT Rating Earned: 73% This section evaluates the implementation of strategies used to ensure that the indoor environment is healthy and comfortable, in terms of providing a high level of indoor air quality, effective lighting, thermal comfort and suitable acoustic conditions. Northside Dining Terrace achieved a score of 73% on the Green Globes and comfortable environment. TM rating scale for measures to provide a healthy, productive Effective ventilation system Summary of Your Achievements Air intakes will be located more than 60 ft from major sources of pollution and at least the minimum recommended distances from lesser sources of pollution. Vent openings will be suitably protected. Systems and components are specified that will avoid the release of pollution and fibers into the ventilation air path. Sufficient ventilation will be provided to obtain an acceptable IAQ, in accordance with ANSI/ASHRAE 62.1-2004 using the Ventilation Rate Design Procedure. The reported design ventilation rate is 23 cfm/person. Northside Dining Terrace pg. 23 The mechanical ventilation system will have the capability of flushing-out the building with 100% outside air at ambient temperatures above 0°C. The filters have a minimum efficiency of 65% arrestance, or 40% atmospheric dust-spot efficiency for air distributed to occupied spaces. Opportunities for improvement RECOMMENDATION Recommendations Supplementary Information To avoid re-entrainment, position air intakes and outlets at least 33 ft apart, and ensure that inlets will not be downwind of outlets. Indoor air quality (IAQ) is primarily related to the quality of the outside air. If the site is located relatively distant from heavy urban and industrial pollution, the outdoor air should contain no more than 350-400 ppm of CO2. However, even in locations where the outdoor air is of relatively high quality, the building can be contaminated by localized sources of pollution. One way to avoid some of these problems is to place outdoor air intakes high up, where there may be less pollution than at ground level, although even at higher elevations, care must be taken to prevent contamination by insects or bird droppings. Prevailing winds and airflow patterns created by the building can have a considerable impact on the air that actually reaches the air intakes. When air intakes are unavoidably located close to sources of pollution, or where the airflow is obstructed, additional measures to remove pollutants from the supply air will be required. Air intakes should be separated from potential sources of pollution by the following minimum separation distances: Property line 3' Areas where vehicles are standing and idling 25' Driveway or street 10' Limited access highway 25' Mantles or ledges 3' Landscaped grade 6' Roof or grade 9" Source: Santa Monica Building Design & Construction Guidelines; Separate Outdoor Air Intakes from Air Pollutant Sources RECOMMENDATION Recommendations Supplementary Information Northside Dining Terrace pg. 24 Ensure that the mechanical systems will provide effective air exchange. One way of determining effective mechanical ventilation is through measurements of air exchange effectiveness (E) as determined by ASHRAE 129 - 1997 Measuring AirChange Effectiveness. This compares the age of the air the occupants breathe to the age of the air that would reach the occupants throughout the test space if the indoor air were perfectly mixed. For mechanically ventilated buildings, well-designed ventilation systems should result in an E-value greater than or equal to 0.9. For naturally ventilated spaces, demonstrate a distribution and laminar flow pattern that involves not less than 90% of the room or zone area in the direction of airflow for at least 95% of the hours of occupancy. In the case of standard HVAC systems, the construction documents should summarize all the calculations, indicating that the ventilation systems will be capable of achieving these requirements. Ventilation effectiveness addresses not only the provision of adequate ventilation but also the distribution of “well-mixed” air within the space. ASHRAE 62.1-2004 defines “ventilation effectiveness” as the fraction of the outdoor air delivered to the space that actually reaches the occupants. The objective is to ensure good air distribution; with free airflow and that the outdoor air does not bypass the occupants' breathing zones. RECOMMENDATION Recommendations Supplementary Information Specify an indoor air quality monitoring system either as an independent system or as a function of the BAS. Locate the CO2 monitors in areas with high occupant densities and at the ends of the longest runs of the distribution ductwork. Install indoor air quality monitoring as an independent system or as a function of the BAS, preferably with feedback on space ventilation performance and the operation of the air intake vents. Identify designated exhaust systems for special sources of contamination and where appropriate, specify CO2 monitoring. Check that the monitoring locations are situated in areas with high occupant densities and at the ends of the longest runs of the distribution ductwork. RECOMMENDATION Recommendations Supplementary Information Specify that personal control over the ventilation rates will be provided for a maximum of four to six occupants, either through personalized HVAC controls or, for naturally ventilated buildings, operable windows or operable trickle vents. Providing individual control over the environmental conditions in the workplace helps increase occupant satisfaction and productivity. Task/ambient conditioning (TAC) systems allow occupants to control temperature, airflow, and in some cases, lighting and sound levels to meet their individual needs. In perimeter areas, consider a combination of TAC control and operable windows. In non-perimeter areas, provide VAV systems with a 1:1:2 terminal box to controller to occupant ratio. This technology is often implemented in conjunction with under-floor air distribution, a combined approach which has the potential to improve thermal comfort and IAQ, while simultaneously reducing energy use and lifecycle building costs, and reducing the floor-tofloor height requirements in new construction. Northside Dining Terrace pg. 25 Source control of indoor pollutants Summary of Your Achievements There are measures to minimize the accumulation of moisture within the building and prevent the growth of fungus, mold, and bacteria on building surfaces and in concealed spaces (i.e. All stainless steel equipment and FRP at all walls in cooking and prep areas. Expoy flooring over concrete, sealed and caulked at all perimeters. ). There will be easy access to the air-handling units (AHUs) to facilitate their maintenance and drainage and avoid the accumulation of debris. There are measures to avoid pollution at-source (i.e. Direct exhaust over cooking areas with controls to ensure gas is turned off at malfunction of exhaust hoods. ). The domestic hot water system is designed in such as way as to prevent the occurrence of Legionella. Interior materials are specified that are low-VOC emitting, non-toxic, and chemically inert (i.e. paint ). Lighting Summary of Your Achievements Daylighting The construction documents indicate that the building provides direct ambient daylight to 80% of the primary spaces. The building will provide ambient natural lighting, achieving a daylight factor of 0.2 for work places and or living/dining areas requiring moderate daylighting, and 0.5 for well day-lit work areas. The construction documents indicate that there will be views to the building exterior, or to atria from all primary interior spaces. Solar shading devices are specified to enable occupants to control brightness and glare from direct daylighting. Lighting design Lighting levels will meet those recommended in IESNA Lighting Handbook, 2000 for the types of tasks to be anticipated in the various building spaces. Opportunities for improvement Lighting design Northside Dining Terrace pg. 26 RECOMMENDATION Recommendations Supplementary Information In office occupancies ensure that the ambient natural light in primary spaces does not produce excessive direct or reflected glare, as defined in IESNA RP-5, 1999, Recommended Practice of Daylighting. Provide the design report and engineering calculations. Glare affects visual comfort. Glare and reflections are distracting, even when they do not mask the work, and the added stress they cause generally results in the need for longer rest pauses. Internal or external blinds are a first line of defense against glare. Lights can also be angled to prevent glare at visual display terminals. Solar control blinds should be on all windows oriented more southerly than NE or NW. Guidance can be obtained from the IES-VDT Lighting Standards to Avoid Glare for Visual Display Terminals. Thermal comfort Summary of Your Achievements The building design appears to conform to the ASHRAE 55-2004 for thermal comfort. Acoustic comfort Summary of Your Achievements The building is sited, and spaces within the building are zoned so as to provide optimum protection from undesirable outside noise, and fall within acceptable noise criteria (NC) ranges. The construction documents specify the sound level transmission through the building envelope. There are measures to mitigate acoustic problems associated with mechanical equipment noise and vibration, and plumbing systems. Opportunities for improvement RECOMMENDATION Recommendations Supplementary Information Provide noise attenuation of the structural systems, and include measures to insulate primary spaces from impact noise. Provide noise attenuation throughout the building envelope by reducing the transmission of externally generated noise. Specify appropriate floor and wall assemblies, materials and glazing systems to minimize inappropriate sound transmission from the outside and between rooms and floors, and to insulate primary spaces from undesirable impact noise when adjacent spaces are fully occupied and are being used normally. Specify appropriate field impact insulation class (FIIC) values. Provide engineering design calculations and drawings finalized by a licensed Northside Dining Terrace pg. 27 acoustical engineer. RECOMMENDATION Recommendations Supplementary Information Provide acoustic controls to meet the acoustic privacy requirements. Include in the construction documents, the desired ambient sound levels in primary spaces within the “equivalent steady noise levels” (45-50 dB Laeq,T) or NC ranges, as defined in the ASHRAE HVAC Applications Handbook, 1999, when adjacent spaces are occupied and are being used normally. Control sources of externally and internally induced vibrations from wind loads, passing traffic and interior foot traffic. Depending on the ambient noise from the site, develop appropriate sound isolation strategies for the building envelope and windows (including acoustic zoning, wall construction, glazing, and STC standards). Northside Dining Terrace pg. 28