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EPA Moisture Control Guide 2013

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Page 33 of 144

www.epa.gov/iaq/moisture control. If a commissioning agent is involved in the design and construction of a building, many of the quality assurance procedures related to moisture control and associated measures could easily fall within the agent's scope. A general process for building commissioning is presented in ASHRAE Guideline 0-2005: The Commissioning Process— the industry-accepted commissioning guideline. The National Institute of Building Science (NIBS) published Guideline 3-2006: Exterior Enclosure Technical Requirements for the Commissioning Process, which presents a process for building enclosure commissioning and contains many annexes to illustrate the steps in the process. In 2012, ASTM published E2813-12 Standard Practice for Building Enclosure Commissioning. This standard practice follows Guideline 3 procedures and includes functional testing required for fundamental and enhanced enclosure commissioning. cooperation with the owner, contractor and third parties: • Documents overall moisture control goals. • Plans water controls and water event responses to be implemented during construction. • Identifies inspection, testing, commissioning and quality-assurance activities to ensure the intended moisture-control measures are implemented as designed. • Establishes requirements of and responsibility for providing, reviewing and accepting submittals, shop drawings, proposed substitutions and scheduled inspections. • Documents the O&M procedures required to keep the intended moisture control measures working throughout the building's life. This chapter has six subsections: 1. Site Drainage. Who Should Read this Chapter 2. Foundations. This chapter is for the design team members who produce the design, bid and construction documents. It includes a list of design elements that will protect a building from moisture-related problems. The design team must understand the problems that water causes in buildings and the dynamics of moisture sources, moisture migration and moisture control. This knowledge must be reflected in the design documents, building drawings and specifications. 3. Walls. 4. Roof and Ceiling Assemblies 5. Plumbing Systems. 6. HVAC Systems. Each subsection discusses techniques to provide protection from moisture problems and specifies: • The issue that is being addressed. • The moisture-control goals for the issue. Good design is a prerequisite for a building that resists moisture problems; however, good design alone is not enough. The design must be implemented correctly during construction and maintained during the building's operation by the owner or manager. To that end, the design team in • Guidance on implementing techniques to achieve each moisture-control goal. • Ways to verify that the moisture-control techniques have been included in the building design and have been properly installed or constructed. 27

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