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6.1 This practice is intended to serve as a concise, authoritative, and technically sound practice for Building Enclosure Commissioning (BECx) that is based upon:6.1.1 The Owner Project Requirements;6.1.2 Clearly defined and enforceable levels of BECx; and6.1.3 Minimum core competencies required of the BECxP and associated service-providers28 (see 4.2) to qualify as Fundamental or Enhanced BECx under this practice.6.2 This practice is suitable for use as an independently applied standard for new buildings and structures, or as part of a more broadly based Total (or “Whole”) Building Commissioning Program.1.1 This practice is intended to serve as a concise, authoritative, and technically sound practice for Building Enclosure Commissioning (BECx) that establishes two levels of BECx: Fundamental and Enhanced (refer also to Section 4).1.2 The BECx process as defined in this practice includes the following phases and sub-phases:1.2.1 Pre-design,1.2.2 Design,1.2.2.1 Schematic Design,1.2.2.2 Design Development,1.2.2.3 Construction Documentation,1.2.3 Bidding and Negotiation Phase,1.2.4 Construction,1.2.4.1 Pre-Construction,1.2.4.2 Construction Administration, and1.2.5 Occupancy and Operations.1.3 This practice includes a mandatory OPR Development Guideline (Annex A1) and requires the development of an OPR for both Fundamental and Enhanced BECx that addresses, at a minimum, the performance attributes and metrics included in Annex A1 of this practice.1.4 This practice includes mandatory BECx Performance Testing Requirements (Annex A2) approved for use with this practice to evaluate the performance and durability of enclosure materials, components, systems, and assemblies.1.5 This practice mandates independent design review during the Design Phase of both Fundamental and Enhanced BECx.1.6 This practice recognizes that the OPR for exterior enclosure performance and environmental separation may exceed the baseline requirements of applicable building codes and standards and provides guidance for the development of an OPR based on the following attributes as defined in Annex A1 of this practice:1.6.1 Energy,1.6.2 Environment,1.6.3 Safety,1.6.4 Security,1.6.5 Durability,1.6.6 Sustainability, and1.6.7 Operation.1.7 The terms “building enclosure” and “enclosure” as they appear in this practice refer collectively to all materials, components, systems, and assemblies intended to provide shelter and environmental separation between interior and exterior, or between two or more environmentally distinct interior spaces in a building or structure.1.8 This practice establishes that the Building Enclosure Commissioning Provider (BECxP) refers specifically to the individual retained by the Owner to develop, manage, and be in responsible charge of the BECx process, including individual members and technical specialists that may comprise the BECx group (see 4.2).1.9 The role and responsibilities of the BECxP as defined by this practice are not intended to supersede or otherwise replace the contractual obligations reserved specifically for the parties responsible for the design and construction of a building or structure, nor the duties that may otherwise be assigned to those parties by applicable regulatory or statutory law.1.10 This practice is not intended to warrant or otherwise guarantee the as-built or in-service durability, or both, and performance of enclosure materials, components, systems, and assemblies.1.11 The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversions to inch-pound units that are provided for information only and are not considered standard.1.12 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.13 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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5.1 This guide provides recommendations for the enclosure commissioning process from its project planning through design, construction and occupancy and operation phases. This guide is intended for various building types. Although Practice E2813 defines two levels of enclosure commissioning, fundamental and enhanced, complex buildings and Owners seeking a higher level of assurance may require more intensified enclosure commissioning than the minimum requirements described in this guide and Practice E2813.135.2 The process uses performance-oriented practices and procedures to verify that the project is achieving the expectations described in the OPR and defined by the contract documents throughout the delivery of the project.5.3 The BECx process is recommended to begin during the pre-design phase and continues through the occupancy and operations phase. The process includes specific tasks during each project phase.5.4 The commissioning process is outlined in ANSI/ASHRAE/IES Standard 202. It is recommended that the reader understand the process provided in that document. This standard guide and Practice E2813 provide a specific process related to the building enclosure commissioning.5.5 Note that the enclosure commissioning process should not infringe upon the authority or responsibility of the Owner, the project’s designers or contractors. The CxG and BECxG can identify areas of concern relative to the OPR, which are discussed with the Owner and other stakeholders; however it is the Owner who directs the project, Cx team, and BECx team. It is recommended that the BECxP be engaged in pre-design phase to define the scope of BECx so that the Owner’s agreements with the project team (including the contractor) clearly define the scope of contracted tasks that interface with BECx process.5.6 BECx does not replace a traditional design/construction process but is meant to enhance and be an integral part of that process by validating the design and verifying the construction meets the requirements described in the OPR and defined by the contract documents.5.7 In this guide, the performance objectives for attributes of the building enclosure as required by an Owner are considered. Enclosure attributes to be considered include the control of moisture, condensation, heat flow, air flow, water vapor flow, noise, fire, vibrations, energy, light, infrared radiation (IR), ultraviolet radiation (UV), as well as the structural performance, durability, resiliency, security, reliability, aesthetics, value, constructability, maintainability over its life cycle, and sustainability of the enclosure elements to meet or exceed the expectations described in the OPR and defined by the contract documents. The commissioning objectives for a building’s enclosure may vary by the Owner’s requirements. The objectives contained in the OPR may vary by occupancy, use, size, and the project requirements, which may include other requirements across these or other variables.5.7.1 Note that this guide is not a one-size-fits-all “how to” standard guide on avoiding poorly performing building enclosures.5.8 Approach: 5.8.1 The sequence of work for the BECx team commences by assembling the documentation of the OPR at the inception of a project. The sequence continues with the conveyance and interpretation of this information by the BECxG throughout the building delivery process. Throughout the process, the BECxP verifies that the BECxG’s work product is consistent with this guide and Practice E2813. The BECx process has been structured to coincide with the phases of a generic project with pre-design, design, bidding and negotiation, construction, occupancy, and operations phases. If circumstances require Owners to adopt the BECx process during the design or construction phase of a project, implementation at that point in time shall capture the information that would have been developed had the BECx process begun at project inception. Beginning the BECx process at project inception will maximize benefits to the project.5.8.2 Although this guide focuses upon building enclosure systems, a successful whole building commissioning process should carefully document and verify interfaces between interdependent building systems. Even if the building enclosure is the singular focus of this Cx process, coordination among disciplines is essential for overall building project success.1.1 Purpose—This guide provides procedures, methods and documentation techniques that may be used in the application of the building enclosure commissioning (BECx) process. This guide is complementary to Practice E2813 and is aligned with ANSI/ASHRAE/IES Standard 202 and ASHRAE Guideline 0.1.2 Extent—The process outlined in this standard guide applies to each building delivery phase from pre-design through occupancy and operation. The specific application of this guide may vary to suit the Owner, the project delivery method and the building project as described in the Owner’s Project Requirements (OPR), and as defined by the contract documents.1.3 Primary Focus—The primary focus of this process includes, but may not be limited to, new construction of building enclosures, existing building enclosures undergoing substantial renovation or alteration, and continuous commissioning of enclosure systems.1.4 Contractual and Regulatory Obligations—The methods described in this guide are not intended to supersede or otherwise replace the contractual obligations reserved specifically for the parties responsible for the design and construction of a building or structure, nor to alter the roles, responsibilities and duties that may otherwise be assigned to those parties by applicable regulatory or statutory law.1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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4.1 With the rapid expansion of the commercial photovoltaic market and the various standards and independent certification entities evolving, a consensus standard practice for the ICOMP process is needed to bring consistency to the market.4.2 Investors and insurance companies need consistency of product and standards to reduce costs of capital and underwriting. Use of a consensus standard practice is expected to improve consistency and reduce risk for investors.4.3 Photovoltaic systems operate in harsh environments that are not typical for electrical equipment and generally inconsistent with electrical contractor experience. Documented processes are needed to ensure performance and durability of the systems over the long operating life.4.4 The goal of this practice is to implement processes to improve safety and reliability, reduce lifecycle costs (commonly referred to as Levelized Cost of Energy or LCOE), and encourage the development of feedback loops for continuous improvement of results.4.5 This practice may be applied during any or all phases of the PV System Lifecycle (refer to Section 5). A record of the activities carried out according to this practice shall be included in the Report (refer to Section 8).1.1 This practice details the minimum requirements for installation, commissioning, operations, and maintenance processes to ensure safe and reliable power generation for the expected life of the photovoltaic system. Specifically dealing with commercial photovoltaic installations, this practice covers a broad spectrum of designs and applications and is focused on the proper process to ensure quality.1.2 This practice does not cover the electrical aspects of installation found in existing and national codes and does not replace or supersede details of electrical installation covered by the same. The practice does address the integration of best practices into design and construction.1.3 This practice shall not dictate specific design criteria or favor any product or technology.1.4 This practice shall be focused on the proper, documented process required to build and operate a quality PV plant as defined in Section 3.1.5 Integration of best practices shall be relevant to this standard and promote a mechanism for rapid evolution and reaction to changes or events. Conformity assessment for PV power plants is being developed through the IEC System for Certification to Standards Relating to Equipment for Use in Renewable Energy Applications (IECRE System). Sandia Labs has developed several model documents that may be adopted as acceptable consensus standards through other standards development organizations.1.6 The standard is divided into three key areas:1.6.1 Design, engineering, and construction of the PV plant. Systems should be designed with operation and maintenance (O&M) in mind. Further standards should be developed for building integrated or building mounted systems, modules with embedded power electronics, lightweight flexible modules, or other specific components.1.6.2 Commissioning, testing, and approval for power generation (Utility Witness Testing). Standards for owner acceptance will also be addressed.1.6.3 O&M of the PV plant including performance monitoring, periodic inspection, preventive maintenance, and periodic re-commissioning.1.7 Safety and hazard considerations unique to this application, such as worker fall protection, electrical exposure, accessibility of modules, and roof clearance (around the perimeter of the array) are addressed by other codes, standards, or authorities having jurisdiction.1.8 This practice provides guidelines for minimum processes required and must be used in conjunction with applicable codes and standards, government regulations, manufacturer requirements, and best practices.1.9 This practice is not intended to replace or supersede any other applicable local codes, standards or Licensed Design Professional instructions for a given installation.1.10 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.11 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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