Saint Paul Sustainable Building Policy Training Module Six Indoor environmental quality requirements SAINT PAUL SUSTAINABLE BUILDING POLICY Indoor environmental quality • Background – Ventilation – Construction indoor air quality – Low emitting materials – Thermal comfort • General reporting requirements • Requirements for specific rating systems SAINT PAUL SUSTAINABLE BUILDING POLICY BACKGROUND SAINT PAUL SUSTAINABLE BUILDING POLICY Background • Indoor environmental quality (IEQ) is an essential part of providing a healthy and comfortable environment for residents and employees. • The Saint Paul Overlay has four indoor environmental quality sections: – Ventilation requirements – Construction Indoor Air Quality (IAQ) management plan – Selection of low-emitting materials – Thermal comfort SAINT PAUL SUSTAINABLE BUILDING POLICY Ventilation requirements • Exhaust pollutants • Mitigate negative health effects • Manage moisture SAINT PAUL SUSTAINABLE BUILDING POLICY Construction IAQ management • Manage dust and pollutants created during the construction process. • Minimize exposure to construction hazards both to the occupants of the building and workers during construction. SAINT PAUL SUSTAINABLE BUILDING POLICY Low-emitting materials • Limit the amount of pollutants entering the indoor environment. SAINT PAUL SUSTAINABLE BUILDING POLICY Thermal comfort • Thermal comfort requirements set limits on radiant temperature, air temperature, and humidity, based on building type and a variety of other factors. • Intended to provide a comfortable indoor environment for most occupants. SAINT PAUL SUSTAINABLE BUILDING POLICY Specific requirements: Indoor environmental quality • ASHRAE standards 62.1 and 62.2 – Define appropriate rates of ventilation – Commonly incorporated into sustainable building standards SAINT PAUL SUSTAINABLE BUILDING POLICY Specific requirements: Construction IAQ Management • During-construction: – Establish a plan of construction IAQ management – For buildings occupied while under construction, follow the SMACNA IAQ guidelines – Includes specific requirements if not outlined in guideline or rating system • Post-construction IAQ management: requires a pre-occupancy “Building Flush Out” period SAINT PAUL SUSTAINABLE BUILDING POLICY Specific requirements: Low-emitting materials • Limit the amount of Volatile Organic Compounds (VOCs) including formaldehyde present in building materials. – Primarily achieved through product selection, typically of paints, adhesives, wood products, carpet and other interior finishes. SAINT PAUL SUSTAINABLE BUILDING POLICY Specific requirements: Thermal Comfort • ASHRAE Standard 55 – Defines the range of indoor thermal environmental conditions acceptable to a majority of occupants. SAINT PAUL SUSTAINABLE BUILDING POLICY GENERAL REPORTING REQUIREMENTS SAINT PAUL SUSTAINABLE BUILDING POLICY General reporting requirements: Ventilation • Use the Indoor Environment Quality Worksheet found at: – www.sustainablebuildingpolicy.umn.edu/saintpaul • Include a list of spaces found in the project, their required ventilation rates per ASHRAE 62 and the ventilation rate as designed. • Submit the completed Worksheet to DSI and PED SAINT PAUL SUSTAINABLE BUILDING POLICY General reporting requirements: Construction IAQ management Plan • Submit the required IAQ construction management plan. – Indicate in bid and construction documents that compliance with the Construction Indoor Air Quality Management Plan is required. – The Template for construction IAQ management plan is available at www.sustainablebuildingpolicy.umn.edu/saintpaul – Submit completed plan to DSI and PED SAINT PAUL SUSTAINABLE BUILDING POLICY General reporting requirements: Low-emitting materials requirements • List the products which have been specified for the the project, along with product type and and method of verification of compliance ( please list the database of compliant materials in which the product appears, or the certification that the product has recieved). – Template for Materials Selection Log available at www.sustainablebuildingpolicy.umn.edu/saintpaul – Required for products listed under each rating system, specific requirements vary. – Submit completed log to DSI and PED SAINT PAUL SUSTAINABLE BUILDING POLICY General reporting requirements: Thermal comfort • List all spaces in the building, their designed high and low temperature set points during occupancy, air speed and relative humidity, verifying that they are within the required comfort zone for compliance with ASHRAE 55. For spaces where mean radiant temperature or other indoor comfort factor may be an issue, list strategies to maintain indoor surface temperatures within 20 degrees Fahrenheit and mitigate other comfort factors. – Template available at www.sustainablebuildingpolicy.umn.edu/saintpaul - note that this is a shared template with the ventilation requirement. SAINT PAUL SUSTAINABLE BUILDING POLICY REQUIREMENTS FOR SPECIFIC RATING SYSTEMS SAINT PAUL SUSTAINABLE BUILDING POLICY LEED N.C. 2009 LEED N.C. 2009 IEQ REQUIREMENTS SAINT PAUL SUSTAINABLE BUILDING POLICY Ventilation requirements LEED N.C. 2009 • Achieve IEQ Prerequisite 1: Minimum indoor air quality performance. SAINT PAUL SUSTAINABLE BUILDING POLICY Construction IAQ management plan requirements LEED N.C. 2009 • Achieve IEQ Credit 3.1 and 3.2: Construction IAQ Management Plans, both During Construction and Before Occupancy for 2 points total. SAINT PAUL SUSTAINABLE BUILDING POLICY Low-emitting materials requirements LEED N.C. 2009 • Achieve IEQ Credits 4.1, 4.2, 4.3, 4.4: LowEmitting Materials for 4 points total. SAINT PAUL SUSTAINABLE BUILDING POLICY Thermal comfort requirements LEED N.C. 2009 • Achieve IEQ Credit 7.1: Thermal Comfort for 1 point. SAINT PAUL SUSTAINABLE BUILDING POLICY GBI - Green Globes GBI - GREEN GLOBES IEQ REQUIREMENTS SAINT PAUL SUSTAINABLE BUILDING POLICY Ventilation requirements GBI - Green Globes • Achieve 10 points for credit 12.1.1.1. SAINT PAUL SUSTAINABLE BUILDING POLICY Construction IAQ management plan GBI – Green Globes • Achieve 4 points for credit 6.2.4.1 and 5 points for credit 6.2.4.2. And • Meet construction air quality requirements of SMACNA IAQ Guideline for Occupied Buildings under Construction. Requirements include elements for IAQ protection during construction. See the Saint Paul Overlay to the Sustainable Building Policy for more information. SAINT PAUL SUSTAINABLE BUILDING POLICY Low-emitting material requirements GBI - Green Globes • Achieve 8 points for credit 12.2.1.1: Volatile Organic Compounds. SAINT PAUL SUSTAINABLE BUILDING POLICY Thermal comfort requirements GBI - Green Globes • Achieve 10 points from section 12.5.2.1: Thermal comfort design. SAINT PAUL SUSTAINABLE BUILDING POLICY B3 - Minnesota Sustainable Building Guidelines B3-MINNESOTA SUSTAINABLE BUILDING GUIDELINES IEQ REQUIREMENTS SAINT PAUL SUSTAINABLE BUILDING POLICY B3 - Minnesota Sustainable Building Guidelines Ventilation requirements • Achieve required MSBG criteria I.4. SAINT PAUL SUSTAINABLE BUILDING POLICY B3 - Minnesota Sustainable Building Guidelines Ventilation requirements SAINT PAUL SUSTAINABLE BUILDING POLICY B3 - Minnesota Sustainable Building Guidelines Construction IAQ management plan • Achieve required MSBG criteria P.4. SAINT PAUL SUSTAINABLE BUILDING POLICY B3 - Minnesota Sustainable Building Guidelines Low-emitting material requirements • Achieve required MSBG criteria I.2. SAINT PAUL SUSTAINABLE BUILDING POLICY B3 - Minnesota Sustainable Building Guidelines Thermal comfort requirements • Achieve required MSBG criteria I.5, including optional section E. SAINT PAUL SUSTAINABLE BUILDING POLICY Green Communities MINNESOTA GREEN COMMUNITIES IEQ REQUIREMENTS SAINT PAUL SUSTAINABLE BUILDING POLICY Ventilation requirements Green Communities • Achieve mandatory credit 7-6, installing a ventilation system that supplies fresh air per ASHRAE 62.1 - 2007. SAINT PAUL SUSTAINABLE BUILDING POLICY Construction IAQ management plan Green Communities • Minnesota Green Communities does not have a satisfactory ventilation criterion. Instead meet Sections 1 and 2 of the following guidelines, when applicable: SAINT PAUL SUSTAINABLE BUILDING POLICY Construction IAQ management plan – section 1 Green Communities • Comply with a pre-occupancy building flushout as described in LEED N.C. Version 2.2. • Total air volume of 14,000 cu. ft. of outdoor air per sq. ft. of floor area • 60 degrees temperature • 60% maximum relative humidity • Replace all filtration media prior to occupancy SAINT PAUL SUSTAINABLE BUILDING POLICY Construction IAQ management plan – section 2 Green Communities • Meet construction air quality requirements of SMACNA IAQ Guideline for Occupied Buildings under Construction. • Maintain ventilation continuously during installation. • Ventilate areas directly to outside. • During dust-producing activities (e.g., drywall installation and finishing, and transportation and delivery), turn ventilation system off. SAINT PAUL SUSTAINABLE BUILDING POLICY Low-emitting material requirements Green Communities • Achieve required credits 7-1, 7-2, 7-3 and 7-4 SAINT PAUL SUSTAINABLE BUILDING POLICY Thermal comfort requirements Green Communities • Meet the requirements of ASHRAE Standard 55–2004: Thermal Comfort Conditions for Human Occupancy. SAINT PAUL SUSTAINABLE BUILDING POLICY Minnesota GreenStar MINNESOTA GREEN STAR IEQ REQUIREMENTS SAINT PAUL SUSTAINABLE BUILDING POLICY Ventilation requirements Minnesota GreenStar • Achieve Section 5A-PR1 SAINT PAUL SUSTAINABLE BUILDING POLICY Construction IAQ management plan Minnesota GreenStar • Satisfy overall requirement OPR-4 • Achieve 3 points for section 8F-1 SAINT PAUL SUSTAINABLE BUILDING POLICY Low-emitting material requirements Minnesota GreenStar • At a minimum, achieve credits in the following categories: 8A-3c, 8A-3f, 8A-6d, 8B-5, 8B-9d, 8C-2d, 8C5d, 8D-2d, 8E-2 (for no-added urea formaldehyde), 8E-3, 8F-2, 8F-3. SAINT PAUL SUSTAINABLE BUILDING POLICY Thermal comfort requirements Minnesota GreenStar • Meet the requirements of ASHRAE Standard 55–2004: Thermal Comfort Conditions for Human Occupancy. SAINT PAUL SUSTAINABLE BUILDING POLICY LEED for Homes LEED FOR HOMES IEQ REQUIREMENTS SAINT PAUL SUSTAINABLE BUILDING POLICY Ventilation requirements LEED for Homes • Achieve required criteria for Indoor Environmental Quality (EQ) credit 4.1: Basic Outdoor Air Ventilation. SAINT PAUL SUSTAINABLE BUILDING POLICY Construction IAQ management plan LEED for Homes • Achieve at least 1 point each for the following: – EQ credit 8.1 Indoor contaminant control during construction – EQ credit 8.2: Indoor contaminant control – EQ Credit 8.3: Preoccupancy flush SAINT PAUL SUSTAINABLE BUILDING POLICY Low-emitting material requirements LEED for Homes • Achieve all possible points in section Materials and Resources (MR) 2.2 by achieving lowemissions standards for Environmentally Preferable Products. SAINT PAUL SUSTAINABLE BUILDING POLICY Thermal comfort requirements LEED for Homes • Achieve at least 1 point for EQ 6: Distribution of Space Heating and Cooling. SAINT PAUL SUSTAINABLE BUILDING POLICY Questions? SAINT PAUL SUSTAINABLE BUILDING POLICY End of Module 6 SAINT PAUL SUSTAINABLE BUILDING POLICY