019115 BECx General Requirements.docx

A&E

NATIONAL INSTITUTES OF HEALTH (NIH)

HAMILTON, MONTANA

SECTION 01 91 15 - BUILDING ENCLOSURE COMMISSIONING GENERAL REQUIREMENTS

PART 1 - GENERAL

1.1 SUMMARY

A. This Section includes general commissioning requirements for the building exterior enclosure, including, but not limited to the following:

1. Statement of energy code compliance requirements and project approach to demonstrating compliance to said code

2. Roles and responsibilities regarding compliance to the energy code

3. References to related documents and specifications sections

B. The materials, components, systems, and assemblies that comprise the above and below-grade building exterior enclosure will be evaluated and tested as outlined in this Section, as well as in accordance with each of the technical Sections associated with the design and construction of the building exterior enclosure. These sections within the specifications, along with any additional testing plan provided as part of the construction documents will constitute the Building Enclosure Commissioning Plan (BECP). The purpose of the BECP will be to provide a process for independent, third-party verification that the performance of the installed building exterior enclosure meets or exceeds the minimum performance requirements set forth by the contract documents for this project.

C. The minimum performance requirements for the building exterior enclosure for this project are defined by the International Energy Conservation Code (IECC) 2012, and all other applicable codes as defined in the construction documents.

D. Unless otherwise agreed to in writing between the Owner and Contractor, the BECP will be managed by a registered architect, professional engineer, or other qualified Commissioning Authority (CA) retained by the Owner.

E. The owner may elect to make the Building Enclosure Commissioning (BECx) a part of the scope of the CA responsible for other building commissioning scopes (e.g. MEP), or may contract directly with a Building Enclosure Commissioning Provider or other qualified professional that is a separate entity from the general building CA. If BECx is included in the scope of the general building CA, the CA may employ the work of qualified BECx sub-consultants as needed so long as the Owner is aware of and approves such arrangements.

F. The qualified professional responsible for managing the BECP will herein be referred to as the “Building Enclosure Commissioning Provider”, but it is understood that this entity may be referred to by other terms in other sections of the Project Specifications. For example, the Building Enclosure Commissioning Provider may be the same entity as or a sub consultant of the general building Commissioning Authority referred to as such elsewhere in this document.

G. The BECP will include, by reference, all requirements set forth by the Architect-of-Record for pre- construction laboratory and field performance testing of the materials, components, systems and assemblies that comprise the building exterior enclosure. In that context, it should be understood by all parties to this project that:

1. Full and complete compliance with the building exterior enclosure performance requirements set forth by the Architect-of-Record in the Basis-of-Design (BOD) or elsewhere in the construction documents for this project will be required to achieve successful “commissioning” of the building exterior enclosure.

2. The requirements of this Section shall in no way relieve the Owner, Contractor, Architect-of-Record and other parties to this project of their respective contractual obligations to the Owner for meeting the specified performance levels in the design and construction of this project.

3. The commissioning requirements of the general contractor and sub-contractor or trade responsible for the final detailing and construction of the building exterior enclosure are included in this Section as well as in each of the technical specification Sections included in this Project Specification as they relate to the design and construction of the building exterior enclosure for this project (Divisions 2 through 26).

H. The Building Enclosure Commissioning Provider will provide regular written summaries (Reports) of the work in progress during the construction of the building exterior enclosure. These reports will include, but may not be limited to, photographs, sketches and diagrams as required illustrating conditions observed in the field, especially deficiencies noted, together with proposed solutions for those conditions where appropriate for further review and acceptance by the Architect-of-Record for the project. Any changes to the contract documents arising out of the Building Enclosure Commissioning Program must be submitted, reviewed, and accepted in writing, by the Architect-of-Record and Owner and submitted with a series of details/schematics and material specifications to the Contractor for pricing prior to implementation on the project. The Contractor shall be responsible for coordinating and managing the commissioning responsibilities of each of the subcontractors responsible for the building exterior enclosure.

1.2 RELATED SECTIONS:

1. Division 1 Section 019113 "General Commissioning Requirements" for general requirements for commissioning processes.

2. Technical specification sections in Division 2 through Division 26 wherever specifications describe requirements regarding materials, components, systems, assemblies and construction methods (including means of sealing penetrations through the enclosure) that comprise the building exterior enclosure

PART 2 - RELATED WORK

2.1 GENERAL CONTRACTOR’S (and/or CONSTRUCTION MANAGEMENT COMPANY) RESPONSIBILITIES

A. Cooperate with the Building Enclosure Commissioning Provider (may be the same entity as the general building Commissioning Authority), provide access to work, and provide adequate schedule for the work for commissioning tasks.

B. Furnish copies of all shop drawings, manufacturer’s literature, installation instructions, maintenance information, schedules, warranties or other information as requested.

C. Provide qualified personnel for assistance to complete the commissioning tests, including seasonal testing and all required air and water leakage testing for elements of the building exterior enclosure as defined within the BECP.

D. Submit a copy of the General Contractor’s project and site specific Quality Assurance program to be implemented for construction for review by the Architect of Record, the Owner and Owner representatives, the Building Enclosure Commissioning Provider prior to beginning construction and prior to the kick-off meeting of the Building Enclosure Commissioning Process.

E. Participate and ensure all subcontractors utilized for work on this contract participate in a BECx-specific meeting prior to beginning construction with the various members of the design and construction teams, including, but not limited to, the Owner, Owner’s representatives, Architect of Record, Building Enclosure Commissioning Provider, Mechanical Engineer, suppliers, and manufacturer technical representatives. The subcontractors that must attend this meeting include all subcontractors that will be involved in the construction of the building exterior enclosure, including, but not limited to, the roofing, wall system (including installers for the façade system, including, but not limited to, the masonry, stone, metal panel, siding, EIFS, etc. and installers for the air barrier system and drainage plane and flashing and water management system), flashing, sealant, fenestration, concrete, steel, HVAC, electrical, interior framing and drywall contractors. This meeting will be to discuss construction sequencing and the coordination of trades and the General Contractor’s project and site-specific Quality Assurance program to be implemented that will be completed during construction of the building exterior enclosure.

F. Chair regular Building Enclosure Quality Assurance Meetings with the appropriate subcontractors in attendance, to review and discuss issues and concerns related to the building exterior enclosure noted by the Architect of Record, the Building Enclosure Commissioning Provider, and the Owner or Owner’s representative, during the previous week and what action will be taken to address the noted non-conformances. Maintain a summary of non-conformances and current status.

G. On-site Mock-ups: The Contractor is to complete and participate in the construction of on-site mock-ups as defined within the BECP to check constructability, including elements of the building exterior enclosure, including but not limited to a wall-to-window interfaces and roof-to-wall interfaces. The Contractor shall provide personnel to be present and have a representative present from each trade and/or subcontractor associated with installing the system during building exterior enclosure air and water leakage performance testing on the mock-up, as indicated within the BECP. Personnel from each trade that will be completing the work in the field are to be utilized to construct each required mock-up. Provide a written protocol, timeline for repair of any deficiencies noted during the performance testing and/or a written report from the third party agency performing the tests indicating what repairs were required. If a systemic problem is identified during testing, provide repair and remediation protocol for any systemic failures identified by the Building Enclosure Commissioning Provider. Include a timeline for repair of all affected elements. Repaired elements shall not be covered up without review by the Building Enclosure Commissioning Provider.

H. Testing of the building during construction: Provide a representative to be present, and have a representative present from each trade and/or subcontractor associated with installing the system during building exterior enclosure air and water leakage performance testing, as indicated within the BECP. Provide a written protocol and a timeline for repair of any deficiencies noted during the performance testing and/or a written report from the third party agency performing the tests indicating what repairs were required. If a systemic problem is identified during testing, please see the following requirement.

I. Provide a repair and remediation protocol for any systemic failures identified by the Commissioning Authority and/or Building Enclosure Commissioning Provider, including a timeline for repair of all affected elements. Repaired elements shall not be covered up without review and documentation by the Building Enclosure Commissioning Provider.

J. Provide copies of all test and inspection reports for inclusion in the Operations and Maintenance (O&M) Manual or Systems Manual to be submitted as part of the project closeout documentation.

K. Provide an O&M Manual and/or Systems Manual as part of the project record closeout documentation that includes, but is not limited to, closeout requirements listed in these specifications and more specifically:

1. As-built drawings, including a copy of all details and drawings that were installed as part of any addendums or change order directives. All deviations shall be clearly marked in red pen.

2. Specifications for the project, including all accepted product substitutions and any additional specifications as part of any addendums or change order directives. All accepted product substitutions and all deviations shall be clearly marked in red pen.

3. A copy of all accepted change orders

4. A copy of all final shop drawings for each product requiring shop drawings, with the A/E mark-ups and comments, showing final as-built conditions

5. A copy of all warranties, organized by product, and any and all product manufacturer letters indicating the product as appropriate to use for the application intended on the project as well as any installation guidance

6. A master product list summarizing all products used on the project for construction of the building exterior enclosure, and sections to include information on each product organized by tabs in a binder, including the following information:

a. Product name

b. Product manufacturer

c. Catalog or other applicable number for ordering

d. Manufacturer’s contact information, including the contact information for the technical representatives, including one national contact and one regional technical representative contact

e. Product color

f. Supplier contact information

g. Product performance testing results or metrics (for example, the published air permeability metric for any material/assembly that is being utilized as an air barrier component, the published R-value or U-value for component materials/assemblies of the thermal barrier, etc.).

h. Products installation instructions, including installation instructions supplied with any of the shop drawings that indicated field installed items.

i. Manufacturer’s product maintenance guide

j. Manufacturer’s checklist for periodic review of the product indicating how often the product should be checked and the process for implementing a repair

L. An O&M Manual and/or Systems Manual, or dedicated section therein, is to be developed for each major building exterior enclosure system; including, but not limited to:

1. Roof/Garden Roof (penetrations, curbs, etc.)

2. Skylights /Sloped glazing

3. Exterior walls (masonry, stone, EIFS, concrete, precast, metal, insulation, framing, vapor retarder, air barrier, sheathing, etc.)

4. Windows

5. Doors

6. Sealants and expansion joints

7. Control joints

8. Flashings (end dams, drip edges, flexible flashing and metal flashings)

9. Shading devices

10. Curtain walls or window walls, storefronts

11. Plaza decks

12. Planters and planted areas

13. Below-grade construction, waterproofing, drainage

14. Floors, slab-on-grade

15. Fire separation/stopping and smoke control

16. Other special building exterior enclosure systems, equipment and controls.

M. Participate in maintenance orientation and inspection and in one maintenance and training session with the building operations and maintenance staff and other participants identified by the Owner and Architect-of-Record, with the assistance of the Building Enclosure Commissioning Provider.

N. Provide labor, materials and facilities:

1. To provide access to work to be tested

2. To provide materials and labor only as specifically indicated as required of the Contractor within the BECP.

2.2 PERFORMANCE REQUIREMENTS

A. Performance requirements include, but are not necessarily limited to, the requirements of the applicable energy code that has been adopted by the AHJ and incorporated into these specifications and construction documents.

B. Preconstruction Testing of Mockups: See also requirements in the individual specification sections in Divisions 2 through 26.

C. Testing of the building enclosure during construction: See also requirements in the individual specification sections in Divisions 2 through 26

2.3 SUBMITTALS

A. The Contractor is to provide the following submittals to the Building Enclosure Commissioning Provider, in addition to submitting them to the Architect-of-Record. These submittals are in addition to those specified in Division 1 Section 019113 "General Commissioning Requirements."

1. Coordination Drawings: Provide cross references on any and all shop drawings indicating that drawings have been checked and cross-referenced by the Contractor to ensure that adjacent elements (i.e. wall elements and fenestration elements) and the dimensions and construction tolerances indicated will allow all work at interfaces to be constructible

2. Qualifications Data: For fabricators, installers, and testing agencies, submit to the Building Enclosure Commissioning Provider, for review all qualifications required in Divisions 2 through 26 for review.

3. On all submittals for materials and assemblies that comprise portions of the building enclosure, as well as for equipment that penetrates the enclosure and that has specific code requirements related to enclosure performance (e.g. HVAC dampers that separate outside air from HVAC ducts), the performance criteria published by the manufacturer that relates to all code requirements (e.g. allowable air leakage/permeability rates) shall be present and clearly identified in the submittal.

B. The Contractor is to provide the following within closeout documents:

1. Source Quality Control Reports: retain a copy for field review by the Building Enclosure Commissioning Provider and include in the closeout submittal a copy of all manufacturer QA/QC reports submitted for products supplied for the project

2. Field Quality Control Reports: provide a copy of the test reports for all field water and air penetration and other appropriate building exterior enclosure tests completed

3. Special Inspections Reports for all special inspections indicated by the Architect/Engineer-of-Record in the specifications.

PART 3 - EXECUTION

3.1 BUILDING ENCLOSURE COMMMISSIONING PROVIDER’S DUTIES

A. Cooperate with the Architect and Contractor and provide qualified personnel when scheduled.

B. Promptly notify Architect and Contractor of irregularities or deficiencies in work that are observed during performance of services.

C. Be present to observe all testing of all building exterior enclosure systems as defined in the Contract Documents.

D. Building Enclosure Commissioning Provider is not authorized to:

1. Release, revoke, alter or expand requirements of Contract Documents.

2. Approve or accept any portion of the work.

3. Perform any duties of the Contractor.

3.2 VERIFICATON INSPECTIONS AND TESTING

A. Inspections and testing for this project are described in the Building Enclosure Commissioning Plan (BECP) which includes this and other Sections of the Project Specifications as previously defined.

B. Demonstration of code compliance to IECC 2012 C402.4.1 Air Barriers is intended to be by options C402.4.1.2.1 Materials and C402.4.1.2.2 Assemblies, and it is the goal that no testing per option C402.4.1.2.3 Building Test (e.g. blower-door testing) will be required. A full building test utilizing mechanical equipment may be performed if it is determined that to provide value to the BECP process.

C. Test locations:

1. To be determined by BECP prior to testing, and based on construction schedule. Testing will be performed as the building envelope is completed, focusing on areas in which transitions between assemblies occur, such as window/wall, wall/floor, wall/parapet, as well as inside and outside corners.

D. Test Procedure: Test will be performed with a minimum 20 deg. F differential between test area and ambient outside temperature. Test location is to be sealed on interior framing, and depressurized using a blower door. A thermal imaging camera will be used to identify air leakage. Water will then be sprayed on the exterior of the building at the test location, weather allowing, and visual and thermal imaging inspections will be completed for water intrusion. Results will be documented, and correction plan developed by general contractor.

E. Additional Requirements for construction and evaluation of mockups prior to general construction may be found in the individual technical specifications sections in Divisions 2 through 26.

F. The General Contractor is to:

1. Certify that building exterior enclosure systems, subsystems, and construction have been completed according to the Contract Documents, including all addenda and change order requirements.

2. Certify that Field Quality Control procedures have been completed, and that field quality control reports have been submitted, discrepancies corrected, and corrective work approved. Provide a copy of the list of nonconformance maintained by the General Contractor indicating all rework and corrections completed.

G. The Building Enclosure Commissioning Provider is to:

1. If possible, interior framing will be used for enclosure of test area. CxA to be responsible for installing temporary plastic to enclose these areas for testing.

2. Verify that Field Quality Control procedures have been completed, and that field quality control reports have been submitted, discrepancies corrected, and corrective work approved.

3. Provide or witness (per consultant’s contracts) and document field quality-control tests and inspections.

4. Annotate checklist or data sheets when a deficiency is observed.

5. Verify that field quality-control testing of building exterior enclosure has been completed and approved.

3.3 FOLLOW-UP INSPECTIONS / DEFERRED TESTING:

A. If field tests cannot be completed because of a deficiency outside the scope of the Building Enclosure, the deficiency shall be documented and reported to the Owner and the Architect-of-Record. Deficiencies shall be resolved and corrected by appropriate parties and a follow-up inspection shall be scheduled, or any planned test shall be rescheduled.

3.4 INSPECTION / TESTING REPORTS:

A. Inspection or Testing reports shall include measured data, data sheets, and a comprehensive summary describing the specific building exterior enclosure systems at the time of testing.

B. When deficiencies are recognized, prepare a preliminary report. Deficiencies will be evaluated by the Architect and the Building Enclosure Commissioning Provider to determine corrective action. Deficiencies shall be corrected and test or inspection repeated. All repairs are to be documented by the Building Enclosure Commissioning Provider.

C. If it is determined that the system is constructed according to the Contract Documents, and yet a performance deficiency is recognized, the Owner will decide whether modifications are required to bring the performance of the system to a level where the failure or deficiency is eliminated and shall be implemented or if the inspection/test results will be accepted as submitted. If corrective Work is performed, the Owner will decide if inspections/tests shall be repeated and a revised report is to be submitted.

3.5 SYSTEMS TO BE COMMISSIONED

A. Refer to Divisions 2 through 26 of the Specification Sections for specific requirements for commissioning each building exterior enclosure element and system. The systems and elements to be commissioned include, but are not limited to:

1. Roofs, including garden roof systems, all penetrations, transitions, etc.

2. Skylights and other sloped glazing

3. Exterior walls, including the air barrier system, and water management systems

4. Windows

5. Doors, louvers

6. Flashings, including all transitions, end-dams, etc.

7. Interface conditions between each of the above listed elements

8. Other special building exterior enclosure systems, equipment and controls.

END OF SECTION 01 91 15