B.08.02 Ft Jackson RTA Specs Volume 2 (Divisions 07-23).pdf
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This document is a set of technical specifications for the Reception Barracks Complex Phase II project at Fort Jackson, South Carolina. The project includes construction of various facilities such as a reception processing center, battalion headquarters, trainee barracks, medical clinic, and supporting infrastructure like utilities, site development, and security systems. The procurement will be conducted as an unrestricted Best Value Trade-Off acquisition using negotiated procedures. A Project Labor Agreement is required per Executive Order 14063. The project is being procured by the U.S. Army Corps of Engineers, Charleston District. The specifications provide detailed requirements for insulation materials, installation methods, testing, and quality control measures.
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SPECIFICATIONS
READY TO ADVERTISE DESIGN SUBMITTAL
RECEPTION BATTALION COMPLEX, PHASE II
Fort Jackson, South Carolina
Project No. 86812
VOLUME 2 OF 3
DIVISIONS 07 - 23
26 March 2024
Fort Jackson Reception Complex 1230848 RTA Design Submittal
PROJECT TABLE OF CONTENTS
DI VI SI ON 00 - PROCUREMENT AND CONTRACTI NG REQUI REMENTS
00 01 07 12/21 SEALS PAGE
DI VI SI ON 01 - GENERAL REQUI REMENTS
01 11 00 08/15, CHG 2: 08/21 SUMMARY OF WORK
01 30 00 11/20, CHG 3: 08/23 ADMINISTRATIVE REQUIREMENTS
01 32 01.00 10 08/23 PROJECT SCHEDULE
01 33 00 08/18, CHG 4: 02/21 SUBMITTAL PROCEDURES
01 33 29 02/21 SUSTAINABILITY REQUIREMENTS AND
REPORTING
01 35 26 11/20, CHG 4: 08/23 GOVERNMENTAL SAFETY REQUIREMENTS
01 42 00 02/19, CHG 1: 08/23 SOURCES FOR REFERENCE PUBLICATIONS
01 45 00 08/23 QUALITY CONTROL
01 45 00.15 10 11/23 RESIDENT MANAGEMENT SYSTEM CONTRACTOR
MODE (RMS CM)
01 45 35 11/20 SPECIAL INSPECTIONS
01 50 00 11/20, CHG 2: 08/22 TEMPORARY CONSTRUCTION FACILITIES AND
CONTROLS
01 57 19 08/22 TEMPORARY ENVIRONMENTAL CONTROLS
01 58 00 08/19, CHG 5: 08/22 PROJECT IDENTIFICATION
01 74 19 02/19, CHG 3: 11/21 CONSTRUCTION WASTE MANAGEMENT AND
DISPOSAL
01 78 00 05/19, CHG 1: 08/21 CLOSEOUT SUBMITTALS
01 78 23 05/23 OPERATION AND MAINTENANCE DATA
01 78 24.00 10 05/23 FACILITY DATA REQUIREMENTS
01 91 00.15 05/23, CHG 2: 11/23 BUILDING COMMISSIONING
01 91 19 05/2023 BUILDING ENCLOSURE COMMISSIONING
DI VI SI ON 02 - EXI STI NG CONDI TI ONS
02 41 00 08/22 DEMOLITION
02 81 00 11/18 TRANSPORTATION AND DISPOSAL OF
HAZARDOUS MATERIALS
02 82 00 11/18, CHG 1: 11/19 ASBESTOS REMEDIATION
02 83 00 11/18 LEAD REMEDIATION
DI VI SI ON 03 - CONCRETE
03 30 00 02/19, CHG 6: 11/23 CAST-IN-PLACE CONCRETE
03 45 00 05/16, CHG 2: 11/21 PRECAST ARCHITECTURAL CONCRETE
03 45 33 05/16, CHG 1: 11/21 PRECAST STRUCTURAL CONCRETE
03 49 00 03/21 GLASS-FIBER REINFORCED CONCRETE (GFRC)
DI VI SI ON 04 - MASONRY
04 20 00 11/15, CHG 2: 05/19 UNIT MASONRY
DI VI SI ON 05 - METALS
05 05 20 05/22 POST-INSTALLED CONCRETE AND MASONRY
ANCHORS
05 05 23.16 08/18 STRUCTURAL WELDING
05 12 00 08/18, CHG 2: 05/21 STRUCTURAL STEEL
05 21 00 05/15, CHG 1: 08/18 STEEL JOIST FRAMING
05 30 00 05/15, CHG 2: 08/18 STEEL DECKS
PROJECT TABLE OF CONTENTS Page 1
05 40 00 05/15, CHG 1: 08/18 COLD-FORMED METAL FRAMING
05 50 13 05/17, CHG 1: 08/18 MISCELLANEOUS METAL FABRICATIONS
05 51 00 08/23 METAL STAIRS
05 51 33 02/16, CHG 2: 02/18 METAL LADDERS
05 52 00 08/23 METAL RAILINGS
DI VI SI ON 06 - WOOD, PLASTI CS, AND COMPOSI TES
06 10 00 08/16, CHG 2: 11/18 ROUGH CARPENTRY
06 20 00 08/16, CHG 2: 11/18 FINISH CARPENTRY
06 41 16.00 10 08/10, CHG 1: 11/18 PLASTIC-LAMINATE-CLAD ARCHITECTURAL
CABINETS
06 61 16 08/20 SOLID SURFACING FABRICATIONS
DI VI SI ON 07 - THERMAL AND MOI STURE PROTECTI ON
07 05 23 08/19 PRESSURE TESTING AN AIR BARRIER SYSTEM
FOR AIR TIGHTNESS
07 13 53 02/16, CHG 1: 08/17 ELASTOMERIC SHEET WATERPROOFING
07 21 13 08/23 BOARD AND BLOCK INSULATION
07 21 16 08/23 MINERAL FIBER BLANKET INSULATION
07 22 00 08/23 ROOF AND DECK INSULATION
07 27 10 08/23 BUILDING AIR BARRIER SYSTEM
07 27 19.01 08/23 SELF-ADHERING AIR BARRIERS
07 27 36 08/23 SPRAY FOAM AIR BARRIERS
07 41 13 05/11, CHG 4: 02/21 METAL ROOF PANELS
07 42 13 05/11, CHG 2: 02/18 METAL WALL PANELS
07 42 63 05/11, CHG 4: 08/20 FABRICATED WALL PANEL ASSEMBLIES
07 54 23 02/13 THERMOPLASTIC POLYOLEFIN (TPO) ROOFING
07 60 00 08/23 FLASHING AND SHEET METAL
07 81 00 02/11 SPRAY-APPLIED FIREPROOFING
07 84 00 05/10, CHG 1: 08/13 FIRESTOPPING
07 92 00 08/23 JOINT SEALANTS
DI VI SI ON 08 - OPENI NGS
08 11 13 08/20 STEEL DOORS AND FRAMES
08 11 16 05/17, CHG 2: 11/18 ALUMINUM DOORS AND FRAMES
08 11 73 08/20 ACCORDION FOLDING FIRE DOORS
08 14 00 08/16, CHG 1: 08/18 WOOD DOORS
08 31 00 05/17, CHG 1: 08/18 ACCESS DOORS AND PANELS
08 41 13 11/16, CHG 1: 08/18 ALUMINUM-FRAMED ENTRANCES AND
STOREFRONTS
08 51 13 05/19 ALUMINUM WINDOWS
08 60 45 08/20 TRANSLUCENT PANELS
08 71 00 02/16, CHG 4: 02/22 DOOR HARDWARE
08 81 00 05/19 GLAZING
08 91 00 08/20 METAL WALL LOUVERS
DI VI SI ON 09 - FI NI SHES
09 22 00 02/10, CHG 2: 08/18 SUPPORTS FOR PLASTER AND GYPSUM BOARD
09 29 00 08/16, CHG 4: 02/20 GYPSUM BOARD
09 30 10 08/20 CERAMIC, QUARRY, AND GLASS TILING
09 51 00 08/20 ACOUSTICAL CEILINGS
09 65 00 08/10, CHG 3: 08/18 RESILIENT FLOORING
09 67 23.13 11/19 STANDARD RESINOUS FLOORING
09 68 00 11/17, CHG 2: 08/20 CARPETING
09 69 13 11/15, CHG 1: 08/18 RIGID GRID ACCESS FLOORING
PROJECT TABLE OF CONTENTS Page 2
09 72 00 08/17, CHG 1: 08/18 WALLCOVERINGS
09 84 20 08/16, CHG 1: 08/18 ACOUSTICAL WALL PANELS
09 90 00 02/21 PAINTS AND COATINGS
09 96 00 11/14 HIGH-PERFORMANCE COATINGS
DI VI SI ON 10 - SPECI ALTI ES
10 11 00 08/20 VISUAL DISPLAY UNITS
10 14 00.10 08/17, CHG 1: 11/18 EXTERIOR SIGNAGE
10 14 00.20 08/20 INTERIOR SIGNAGE
10 21 13 08/20 TOILET COMPARTMENTS
10 26 00 08/20 WALL AND DOOR PROTECTION
10 28 13 08/20 TOILET ACCESSORIES
10 44 16 11/19 FIRE EXTINGUISHERS
10 51 13 05/11 METAL LOCKERS
DI VI SI ON 11 - EQUI PMENT
11 70 00 05/20 GENERAL REQUIREMENTS FOR MEDICAL AND
DENTAL EQUIPMENT
11 71 00 05/20 STERILIZERS AND ASSOCIATED EQUIPMENT
DI VI SI ON 12 - FURNI SHI NGS
12 24 13 08/20 ROLLER WINDOW SHADES
12 36 00 08/18, CHG 2: 08/18 COUNTERTOPS
12 48 13 08/23 ENTRANCE FLOOR MATS AND FRAMES
12 61 13 08/20 UPHOLSTERED AUDIENCE SEATING
12 93 00 08/17, CHG 1: 08/18 SITE FURNISHINGS
DI VI SI ON 13 - SPECI AL CONSTRUCTI ON
13 21 48 04/06 PREFABRICATED AUDIOMETRIC ROOMS
13 49 10 11/20 X-RAY SHIELDING
DI VI SI ON 14 - CONVEYI NG EQUI PMENT
14 24 23 05/16 HYDRAULIC PASSENGER ELEVATORS
DI VI SI ON 21 - FI RE SUPPRESSI ON
21 13 13 08/20 WET PIPE SPRINKLER SYSTEMS, FIRE
PROTECTION
DI VI SI ON 22 - PLUMBI NG
22 00 00 11/15, CHG 4: 05/21 PLUMBING, GENERAL PURPOSE
DI VI SI ON 23 - HEATI NG, VENTI LATI NG, AND AI R CONDI TI ONI NG ( HVAC)
23 05 48.00 40 08/15 VIBRATION CONTROLS FOR HVAC PIPING AND
EQUIPMENT
23 05 48.19 05/18, CHG 2: 08/20 SEISMIC BRACING FOR HVAC
23 05 93 11/15 TESTING, ADJUSTING, AND BALANCING FOR
HVAC
23 07 00 02/13, CHG 7: 05/20 THERMAL INSULATION FOR MECHANICAL
SYSTEMS
23 09 00 02/19, CHG 3: 05/21 INSTRUMENTATION AND CONTROL FOR HVAC
23 09 13 11/15, CHG 2: 05/21 INSTRUMENTATION AND CONTROL DEVICES
PROJECT TABLE OF CONTENTS Page 3
FOR HVAC
23 09 23.02 02/19 BACNET DIRECT DIGITAL CONTROL FOR HVAC
AND OTHER BUILDING CONTROL SYSTEMS
23 11 20 05/20 FACILITY GAS PIPING
23 21 13.00 20 04/06 LOW TEMPERATURE WATER (LTW) HEATING
SYSTEM
23 21 23 08/17 HYDRONIC PUMPS
23 23 00 08/21 REFRIGERANT PIPING
23 30 00 05/20, CHG 1: 02/22 HVAC AIR DISTRIBUTION
23 64 26 08/09, CHG 6: 11/22 CHILLED, CHILLED-HOT, AND CONDENSER
WATER PIPING SYSTEMS
23 81 00 05/18, CHG 1: 02/21 DECENTRALIZED UNITARY HVAC EQUIPMENT
23 82 00.00 20 02/16 TERMINAL HEATING UNITS
DI VI SI ON 25 - I NTEGRATED AUTOMATI ON
25 05 11 11/17 CYBERSECURITY FOR FACILITY-RELATED
CONTROL SYSTEMS
25 08 10 05/21 UTILITY MONITORING AND CONTROL SYSTEM
TESTING
25 10 10 02/19, CHG 1: 05/21 UTILITY MONITORING AND CONTROL SYSTEM
(UMCS) FRONT END AND INTEGRATION
DI VI SI ON 26 - ELECTRI CAL
26 05 48 11/23 SEISMIC PROTECTION FOR ELECTRICAL
EQUIPMENT
26 05 73 08/23 POWER SYSTEM STUDIES
26 08 00 11/22 APPARATUS INSPECTION AND TESTING
26 20 00 08/23 INTERIOR DISTRIBUTION SYSTEM
26 24 13 08/21 SWITCHBOARDS
26 29 23 02/20, CHG 1: 05/21 ADJUSTABLE SPEED DRIVE (ASD) SYSTEMS
UNDER 600 VOLTS
26 32 15.00 05/20 ENGINE-GENERATOR SET STATIONARY
15-2500 KW, WITH AUXILIARIES
26 36 23 05/20, CHG 1: 08/21 AUTOMATIC TRANSFER SWITCHES AND
BY-PASS/ISOLATION SWITCH
26 41 00 08/23 LIGHTNING PROTECTION SYSTEM
26 51 00 05/20, CHG 2: 11/21 INTERIOR LIGHTING
26 56 00 08/21 EXTERIOR LIGHTING
DI VI SI ON 27 - COMMUNI CATI ONS
27 05 13.43 05/20 TELEVISION DISTRIBUTION SYSTEM
27 10 00 08/11 BUILDING TELECOMMUNICATIONS CABLING
SYSTEM
DI VI SI ON 28 - ELECTRONI C SAFETY AND SECURI TY
28 31 76 08/20 INTERIOR FIRE ALARM AND MASS
NOTIFICATION SYSTEM, ADDRESSABLE
DI VI SI ON 31 - EARTHWORK
31 00 00 08/23 EARTHWORK
31 11 00 11/18 CLEARING AND GRUBBING
DI VI SI ON 32 - EXTERI OR I MPROVEMENTS
PROJECT TABLE OF CONTENTS Page 4
32 01 19.61 11/19 SEALING OF JOINTS IN RIGID PAVEMENT
32 05 33 08/17 LANDSCAPE ESTABLISHMENT
32 11 20 05/22 AGGREGATE BASE COURSE FOR RIGID PAVING
32 11 23 05/22 GRADED CRUSHED AGGREGATE BASE COURSE
FOR FLEXIBLE PAVING
32 12 13 05/17 BITUMINOUS TACK AND PRIME COATS
32 12 16.16 11/20 ROAD-MIX ASPHALT PAVING
32 13 13.06 05/20 PORTLAND CEMENT CONCRETE PAVEMENT FOR
ROADS AND SITE FACILITIES
32 16 19 05/18 CONCRETE CURBS, GUTTERS AND SIDEWALKS
32 17 23 08/16, CHG 5: 11/18 PAVEMENT MARKINGS
32 31 13 11/21 CHAIN LINK FENCES AND GATES
32 92 19 08/17, CHG 1: 08/21 SEEDING
32 92 23 04/06, CHG 1: 08/21 SODDING
32 93 00 08/17, CHG 1: 08/21 EXTERIOR PLANTS
DI VI SI ON 33 - UTI LI TI ES
33 11 00 02/18, CHG 2: 11/23 WATER UTILITY DISTRIBUTION PIPING
33 30 00 05/18 SANITARY SEWERAGE
33 40 00 11/21 STORMWATER UTILITIES
33 46 16 05/18 SUBDRAINAGE PIPING
33 61 13.13 02/16 PREFABRICATED UNDERGROUND HYDRONIC
ENERGY DISTRIBUTION
33 61 13.19 02/16 VALVES, PIPING, AND EQUIPMENT IN VALVE
MANHOLES
33 63 13.19 02/16 CONCRETE TRENCH HYDRONIC AND STEAM
ENERGY DISTRIBUTION
33 71 02 08/21 UNDERGROUND ELECTRICAL DISTRIBUTION
33 82 00 04/06 TELECOMMUNICATIONS OUTSIDE PLANT (OSP)
-- End of Project Table of Contents --
PROJECT TABLE OF CONTENTS Page 5
SECTION 07 05 23
PRESSURE TESTING AN AIR BARRIER SYSTEM FOR AIR TIGHTNESS
08/19
PART 1 GENERAL
1.1 SUMMARY
Employ an independent agency to conduct the pressure test on the building envelope in accordance with this specification section and ASTM E779.
1.2 REFERENCES
The publications listed below form a part of this specification to the extent referenced. The publications are referenced within the text by the basic designation only.
AMERICAN SOCIETY FOR NONDESTRUCTIVE TESTING (ASNT)
ANSI/ASNT CP-189 (2016) ASNT Standard for Qualification and Certification of Nondestructive Testing Personnel (ANSI/ASNT CP-105-2006)
ASNT CP-105 (2011) ASNT Standard Topical Outlines for Qualification of Nondestructive Testing Personnel - Item No. 2821
ASNT SNT-TC-1A (2016) Recommended Practice for Personnel Qualification and Certification in Nondestructive Testing
AMERICAN SOCIETY OF HEATING, REFRIGERATING AND AIR-CONDITIONING
ENGINEERS (ASHRAE)
ASHRAE RP-935 (1998) Protocol for Field Testing of Tall Buildings to Determine Envelope Air Leakage Rate
ASTM INTERNATIONAL (ASTM)
ASTM D3464 (1996; R 2014) Standard Test Method for Average Velocity in a Duct Using a Thermal Anemometer
ASTM E779 (2019) Standard Test Method for Determining Air Leakage Rate by Fan Pressurization
ASTM E1186 (2017) Standard Practices for Air Leakage Site Detection in Building Envelopes and Air Barrier Systems
ASTM E1258 (1988; R 2018) Standard Test Method for Airflow Calibration of Fan Pressurization Devices
SECTION 07 05 23 Page 1
ASTM E1827 (2011; R 2017) Standard Test Methods for Determining Airtightness of Buildings Using an Orifice Blower Door
ASTM E2029 (2011) Standard Test Method for Volumetric and Mass Flow Rate Measurement in a Duct Using Tracer Gas Dilution
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION (ISO)
ISO 6781 (1983) Thermal Insulation - Qualitative Detection of Thermal Irregularities in Building Envelopes - Infrared Method
ISO 6781-2 (2010) Performance of Buildings - Detection of Heat, Air, and Moisture Irregularities in Buildings by Infrared Methods - Part2: Equipment Requirements
ISO 6781-3 (2015) Performance of Buildings - Detection of Heat, Air, and Moisture Irregularities in Buildings by Infrared Methods - Part 3: Qualifications of Equipment Operators, Data Analysts, and Report Writers
1.3 DEFINITIONS
The following terms as they apply to this section:
1.3.1 Air Barrier Envelope
The surface that separates the inside air from the outside air. The combination of air barrier assemblies and air barrier components, connected by air barrier accessories are designed to provide a continuous barrier to the movement of air through an environmental separator. A single building may have more than one air barrier envelope. The air barrier surface includes the top, bottom, and sides of the envelope. The term "air barrier envelope" is also known as "air barrier system" or simply "air barrier".
1.3.2 Air Leakage Rate
How leaky, or conversely how air tight a building envelope is. The air leakage is normally described in terms of air flow rate for the surface area of the envelope at a defined differential pressure.
1.3.3 Bias Pressure
Also known as zero flow pressure, baseline pressure, offset pressure or background pressure. With the envelope not artificially pressurized, bias is the differential pressure that always exists between the envelope that has been prepared (sealed) for the pressure test and the outdoors. Bias pressure is made up of two components, fixed static offset (usually due to stack effect or the HVAC system) and fluctuating pressure (usually due to wind or a moving elevator). Because of pressure fluctuations many bias pressure readings are recorded and averaged for use in the calculations.
SECTION 07 05 23 Page 2
1.3.4 Blower Door
Commonly used term for an apparatus used to pressurize and depressurize the space within the building envelope and quantify air leakage through the envelope. The blower door typically includes a door fan and an air resistant fabric or a series of hard panels that extends to cover and seal the door opening between the fan shroud and door frame. The door fan is a calibrated fan capable of measuring air flow and is usually placed in the opening of an exterior door. With the air barrier otherwise sealed, air produced by the door fan pressurizes or de-pressurizes the envelope, depending on the fan's orientation.
1.3.5 Environmental Separator
The parts of a building that separate the controlled interior environment from the uncontrolled exterior environment, or that separate spaces within a building that have dissimilar environments. The term "environmental separator" is also known as the "control layer".
1.3.6 Pressure Test
A generic term for a test in which the envelope is either pressurized or de-pressurized with respect to the outdoors.
1.3.6.1 Negative Pressure Test (Depressurization Test)
A test wherein air inside the envelope is drawn to the outdoors. This places the envelope at a lower (negative) pressure with respect to the outdoors.
1.3.6.2 Positive Pressure Test (Pressurization Test)
A test wherein outdoor air is pushed into the envelope. This air movement places the envelope at a higher (positive) pressure with respect to the outdoors.
1.4 WORK PLAN
Submit the following not later than 120 calendar days after contract award, but before start of pressure testing work, steps to be taken by the lead pressure test technician to accomplish the required testing.
a. Memorandum of test procedure.
(1) Proposed dates for conducting the pressure and thermographic tests.
(2) Submit detailed pressure test procedures prior to the test.
Provide a plan view showing proposed locations (personnel doors or other similar openings) to install blower doors or flexible ducts (for trailer-mounted fans), if used.
b. Test equipment to be used.
c. Scaffolding, scissor lifts, power, electrical extension cords, duct tape, plastic sheeting and other Contractor's support equipment required to perform all tests.
d. Other Contractor's support personnel who will be on site for testing.
SECTION 07 05 23 Page 3
1.5 SUBMITTALS
Government approval is required for submittals with a “G” or “S” classification. Designation “G” shall be construed to require approval by both Government (G) and Architect-Engineer (AE), whether listed or not.
Submittals with an “S” are for inclusion in the Sustainability eNotebook, in conformance with Section 01 33 29 SUSTAINABILITY REPORTING. Submittals not having a “G” or “S” classification are for information only. Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:
SD-01 Preconstruction Submittals
Work Plan ; G
SD-03 Product Data
Thermal Imaging Camera ; G
SD-05 Design Data
Envelope Surface Area Calculations ; G
SD-07 Certificates
Pressure Test Agency
Thermographer Qualifications
Test Instruments
Date Of Last Calibration
SD-06 Test Reports
Pressure Test Procedures ; G
Air Leakage Test Report ; G
Diagnostic Test Report ; G
1.6 QUALITY ASSURANCE
1.6.1 Modification of References
Perform all pressure and diagnostic tests according to the referenced publications listed in paragraph REFERENCES and as modified by this section. Consider the advisory or recommended provisions, of the referred references, as mandatory.
1.6.2 Qualifications
1.6.2.1 Pressure Test Agency
Submit, no later than 15 calendar days after contract award, information certifying that the pressure test agency is not affiliated with any other company participating in work on this contract. The work of the test agency is limited to pressure testing the building envelope, performing a thermography test and investigating, through various methods, the location
SECTION 07 05 23 Page 4 of air leaks through the air barrier. See paragraph PRESSURE TEST AGENCY for additional requirements. For thermographer qualifications, see paragraph THERMOGRAPHER QUALIFICATIONS.
Use the sample TEST AGENCY QUALIFICATIONS SHEET form (Appendix C), to submit the following information.
a. Verification of 2 years of experience as an agency in pressure testing commercial and/or industrial buildings.
b. List of at least ten commercial/industrial facilities with building envelopes that the agency has tested within the past 2 years. Include building name, address, and name of prime construction contractor and contractor's point-of-contact information.
c. Confirmation of 2 years of commercial and or industrial building pressure test experience for the lead pressure test technician and the thermographer in using the specified ASTM E779 testing standard.
References from five Contracting Officers for facilities where the lead test technician has supervised commercial and or industrial building pressure tests in the last 2 years.
d. Verification that the lead pressure test technician has been employed by a building pressure testing agency in the capacity of a lead pressure test technician for not less than 1 year.
1.6.2.2 Thermographer Qualifications
To perform an infrared diagnostic evaluation, use a lead thermographer who has at least an active Level II Certification that is based on the requirements in ASNT CP-105 or ANSI/ASNT CP-189 and is in accordance with ASNT SNT-TC-1A . The course of study is to be specifically focused on infrared thermography for building science. The thermographer must have at least two years of building science thermography experience in IR testing commercial or industrial buildings. The thermographer must also have experience in building envelopes and building science in order to make effective recommendations to the contractor should the envelope require additional sealing. Thermographic equipment operators, data analysists and report writers must comply with the requirements of ISO 6781-3 . Submit the thermographer's certificate for approval. Submit a list of at least ten commercial/industrial buildings on which the thermographer has performed IR thermography in the past two years. The thermographer is to have a current active certification. Submit certification at least 60 days prior to thermography testing.
1.6.3 Test Instruments and Date of Last Calibration
Submit a signed and dated list of test instruments, their application, manufacturer, model, serial number, range of operation, accuracy and date of most recent calibration. Calibration data applicable to fan systems must be in accordance with ASTM E1258.
1.6.4 Test Reports
No later than 14 days after completion of the pressure test, submit electronic copies of an organized report and 3 bound paper copies in a durable 3-ring binder. The report is to contain a table of contents, an executive summary, an introduction, a results section and a discussion of the results. Submit the air leakage test report as described in paragraph
SECTION 07 05 23 Page 5
AIR LEAKAGE TEST REPORT. Submit a diagnostic test report as described in paragraph LOCATING LEAKS BY DIAGNOSTIC TESTING. The diagnostic test report is to include the Thermographic Investigation Report.
Submit field data and completed report forms found in the appendices. Use the sample forms, Test Agency Qualification Sheet, Air Leakage Test Form and Air Leakage Test Results Form to summarize the tests for the appropriate building envelope. Submit both electronically populated and field hand filled-in forms.
Report Data. Include in the report the following information for all tests:
a. Date of issue
b. Project title and number
c. Name, address, and telephone number of testing agency
d. Dates and locations of samples and tests or inspections
e. Names of individuals making the inspection or test
f. Designation of the work and test method
g. Identification of product and specification section
h. Complete inspection or test data
i. Test results and an interpretation of test results
j. Comments or professional opinion on whether inspected or tested work complies with contract document requirements
k. Recommendations on retesting
1.7 CLIMATE CONDITIONS SUITABLE FOR A PRESSURE TEST
As the test date approaches, monitor the weather forecast for the test site. Avoid testing on days forecast to experience high winds, rain, or snow. Monitor weather forecasts prior to shipping pressure test equipment to the site. Based on current and forecast weather conditions, the Contracting Officer's representative is to grant final approval for testing to occur.
1.7.1 Rain
For safety reasons, avoid testing during rain or if rain is anticipated during testing. If pneumatic hoses are installed and exposed to rain inspect the hose to insure rainwater has not migrated into the hose ends.
Orient all exposed hose ends to keep them out of water puddles. Success in temporarily sealing outdoor ventilation components such as louvers and exhaust fans may also be compromised by rain. Don't seal roof-mounted ventilation components during times of potential lightning.
1.7.2 Wind
Because wind can skew pressure test results, test only on days and at times when winds are anticipated to be the calmest. Avoid pressure
SECTION 07 05 23 Page 6 testing during gusty or high wind conditions. Avoid installing test fans on the windward side of the building if wind gusts during the test are anticipated to be greater than 10 miles per hour .
PART 2 PRODUCTS
2.1 PRESSURE TEST EQUIPMENT
Depending on site conditions and size of the envelope, the test may be conducted using blower door equipment and/or trailer-mounted fans or the building's own supply air system. The testing agency is to supply sufficient quantity of blower equipment that will produce a minimum of 75 Pa differential pressure between the envelope and outdoors using the test methods described herein. Supplying additional blower test equipment to provide additional airflow capacity or to act as a backup is highly recommended.
2.1.1 Blower Door Fans and Trailer Mounted Fans
Each air flow measuring system including blower door fans and trailer mounted fans are to be calibrated within the last 5 years. Calibrated blower door fans and trailer mounted fans must measure accurately to within plus or minus 5 percent of the flow reading. Blower door equipment and trailer mounted fans are to be specifically designed to pressurize building envelopes. Each set of blower door equipment is to include fan(s), digital gage(s), door frame, door fabric or hard panels.
2.1.2 Digital Gages as Test Instruments
Use only digital gages as measuring instruments in the pressure test;
analog gages are not acceptable. The gauges must be accurate to within
1.0 percent of the pressure reading or 0.15 Pa, whichever is greater.
Each gage is to have been calibrated within two years of the test. The calibration is to be checked against a National Institute of Standards and Technology (NIST, formerly National Bureau of Standards) traceable standard.
2.2 THERMAL IMAGING CAMERA REQUIREMENTS
The thermal imaging camera used in the thermography test must have a thermal sensitivity (Noise Equivalent Temperature Difference.) of +/- 0.18 degrees F at 86 degrees F or less. Ensure the camera's operating spectral range falls between 2 and 15 micrometers. Ensure the camera's IR image viewing screen resolution measures at least 320x240 pixels. Ensure the camera has a means of recording thermal images seen on the camera viewing screen. The camera is to display output as individual still frame images that also can be downloaded and inserted into an electronic Thermographic Investigation Report. All thermographic equipment must comply with the requirements of ISO 6781-2 . Submit camera make and model, and catalog information that defines the camera thermal sensitivity for approval.
PART 3 EXECUTION
3.1 PRESSURE TEST AGENCY
The test agency is to be an independent third party subcontractor, not an affiliated or subsidiary of the prime contractor, subcontractors or A/E firm. The agency is to be regularly engaged in pressure testing of commercial/industrial building envelopes. If using blower door or
SECTION 07 05 23 Page 7 trailer-mounted fans, the lead test technician must have at least two years of experience in using such equipment in building envelope pressurization tests. Formal training using pressure test equipment is highly recommended. Technicians using the building's air handling system for pressure testing are to have tested at least five commercial/industrial buildings within the past two years with each building having over 50,000 square feet of floor area. Submit the name, address and floor areas of each of these five buildings for approval.
3.1.1 Field Work
The lead pressure test technician and thermographer are to be present at the project site while testing is performed and is to be responsible for conducting, supervising, and managing of their respective test work.
Management includes health and safety of test agency employees.
3.1.2 Reporting Work
The lead pressure test technician is to prepare, sign, and date the test agenda, equipment list, and submit a certified Air Leakage Test Report.
The thermographer is to prepare, sign, and date the test agenda, equipment list, and submit a certified Thermographic Investigation Report. The contractor is to prepare a final report that identifies improvements that were made to the envelope to reduce air leaks , mitigate thermal bridging, eliminate moisture migration,, repair insulation voids discovered during diagnostic tests. Jointly submit all reports.
3.2 ENVELOPE SURFACE AREA CALCULATION
The architectural air barrier boundary includes the floor, walls, and ceiling. After construction of the air barrier envelope is complete, field measure the envelope to ensure the physical measurements match the design drawings and the air barrier envelope surface area calculations are generated. If the calculation result is not within 10 percent of the defined air barrier boundary calculation result as indicated, submit the envelope surface area calculation and results for review. If the air barrier was defined during design but the air barrier envelope surface area was not calculated, calculate it during construction and submit the envelope surface area calculations and result for review.
3.3 PREPARING THE BUILDING ENVELOPE FOR THE PRESSURE TEST
3.3.1 Testing During Construction
The pressure test cannot be conducted until all components of the air barrier system have been installed. After all sealing as described herein has been completed, inspect the envelope to ensure it has been adequately prepared. During the pressure test, stop all ongoing construction within and neighboring the envelope which may impact the test or the air barrier integrity. The pressure test may be conducted before finishes that are not part of the air barrier envelope have been installed. For example, if suspended ceiling tile, interior gypsum board or cladding systems are not part of the air barrier the test can be conducted before they are installed. Recommend testing prior to installing the finished ceilings within the envelope and immediately surrounding it. The absence of finished ceilings allows for inspection and diagnostic testing of the roof/wall interface and for implementation of repairs to the air barrier, if necessary to comply with the maximum allowed leakage.
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3.3.2 Sealing the Air Barrier Envelope
Seal all penetrations through the air barrier. Unavoidable penetrations due to electrical boxes or conduit, plumbing, and other assemblies that are not air tight are to be made so by sealing the assembly and the interface between the assembly and the air barrier or by extending the air barrier over the assembly. Support the air barrier so as to withstand the maximum positive and negative air pressure to be placed on the building without displacement or damage, and transfer the load to the structure.
Durably construct the air barrier to last the anticipated service life of the assembly and to withstand the maximum positive and negative pressures placed on it during pressure testing. Do not install lighting fixtures that are equipped with ventilation holes through the air barrier.
3.3.3 Sealing Plumbing
Prime all plumbing traps located within the envelope full of water.
3.3.4 Close and Lock Doors
Close and lock all doors and windows in the envelope perimeter. For doors not equipped with latching hardware, temporarily secure them in the closed position. Secure the doors in such a way that they remain fully closed even when the maximum anticipated differential air pressure produced during the test acts on them.
3.3.5 Hold Excluded Building Areas at the Outdoor Pressure Level
Keep building areas immediately surrounding but excluded from the test envelope at the outdoor pressure level during the pressure test. Maintain these areas at the outdoor pressure level by propping exterior doors open, opening windows and de-energizing all air moving devices in or serving these areas.
3.3.6 Maintain an Even Pressure within the Envelope
Ensure the pressure differences within the envelope are minimized by opening all internal air pathways including propping open all interior doors. Distribute test fans throughout the envelope as necessary to ensure the internal pressures are uniform (within 10 percent of the average differential pressure). Ideally, do not install suspended ceilings until after all pressure tests have been completed. If, however the envelope includes finished suspended ceiling spaces, temporarily remove approximately 5 percent of all ceiling tiles or a minimum of 1 tile from each isolated suspended ceiling space, whichever comprises the greatest surface area. Temporarily remove additional ceiling tiles during testing to allow for inspection and diagnostic testing of the ceiling/wall interface. An alternative to removing ceiling tiles is to measure the differential pressure between each isolated suspended ceiling space and the outdoors when the area below the suspended ceiling is maintained at a differential pressure of 75 Pa with respect to the outdoors. If the suspended ceiling differential pressure measurement is within ten percent of the 75 Pa pressure below the suspended ceiling no ceiling tiles need to be removed.
3.3.7 Maintain Access to Mechanical and Electrical Rooms
Maintain access to mechanical rooms and electrical rooms associated with the envelope to allow for de-energizing ventilation equipment and
SECTION 07 05 23 Page 9 resetting circuit breakers tripped by blower door equipment, if used.
3.3.8 Minimize Potential for Blowing Dust and Debris
Because high velocity air will be blown into and out of the envelope during the test, debris, including dust and litter, may become airborne.
Airborne debris may become trapped or entangled in test equipment, thereby skewing test results. Ensure areas within and surrounding the envelope are free of dust, litter and construction materials that are easily airborne. If pressurizing existing, occupied areas, provide adequate notice to building occupants of blowing dust and debris, and general disruption of normal activities during the test.
3.3.9 De-energize Air Moving Devices
De-energize all air moving devices serving the envelope to keep air within the envelope as still as reasonably achievable. De-energize all fans that deliver air to, exhaust air from, or recirculate air within the envelope.
Also de-energize all fans serving areas adjacent to but excluded from the envelope.
3.3.10 Installing Blower Door Equipment in a Door Opening
Where blower door fans are used, before installing blower door equipment, select a door opening that does not restrict air flow into and out of the envelope and has at least 5 feet clear distance in front of and behind the door opening. Disconnect the door actuator and secure the door open to prevent it from being drawn into the fan by fan pressure. Avoid installing blower door equipment on the windward side of the building.
3.4 BUILDING ENVELOPE AIR TIGHTNESS REQUIREMENT
For each building envelope, perform the Architectural Only test and if noted below, the Architectural Plus HVAC System test. The purpose of the pressure (air leakage) test is to determine final compliance with the airtightness requirement by demonstrating the performance of the continuous air barrier. An effective air barrier envelope minimizes infiltration and exfiltration through unintended air paths (leaks). The tests may be performed in any desired order.
3.4.1 Architectural Only Test
The test envelope is the architectural air barrier boundary as defined on the contract drawings. This boundary includes connecting walls, roof and floor which comprise a complete, whole, and continuous three dimensional envelope. Perform both a positive pressure test and a negative pressure test on this envelope, unless otherwise directed.
3.4.1.1 Test Goal
Input data from the test into the Air Leakage Rate by Fan Pressurization spreadsheet as described in paragraph CALCULATION PROGRAM via the Air Leakage Test Form. Compare output from the spreadsheet against the maximum allowable leakage defined in Section 07 27 10 BUILDING AIR BARRIER SYSTEM. The envelope passes the test if the leakage rate, as calculated using the spreadsheet, is equal to or lower than the Architectural Only leakage rate goal.
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3.4.1.2 Preparing the Envelope for the Pressure Test - Seal All Openings through the Air Barrier
Temporarily close all perimeter windows, roof hatches and doors in the envelope perimeter except for those doors that are to remain open to accommodate blower door or trailer mounted fan test equipment installation. Seal, or isolate all other intentional openings, pathways and fenestrations through the architectural envelope prior to pressure testing. Follow the Recommended Test Envelope Conditions identified in ASTM E1827, Table 1, for the Closed Envelope condition. These openings may include boiler flues, fuel-burning water heater flues, fuel-burning kitchen equipment, clothes dryer vents, fireplaces, wall or ceiling grilles, diffusers etc. Before sealing flues, close their associated fuel valves and verify the associated pilot lights are extinguished. Prime all plumbing traps located within the envelope full of water. In lieu of applying tape and/or plastic, typical temporary sealing materials include tape and sheet plastic or a self-adhesive grille wrap. Use and apply tape and plastic in a manner that does not deface or remove paint or mar the finish of permanent surfaces. Be especially aware of residue that remains from tape applied to stainless steel surfaces such as kitchen hoods or rollup doors. For painted surfaces, use tape types that do not remove finish paint when the tape is removed. If paint is removed from the finished surface, repaint to match existing surfaces. Secure dampers closed either manually or by using the building's HVAC system controls.
Use the table below for further guidance in building preparation.
Building Component Envelope Condition
Air handling units, duct fans As found (open) or temporarily sealed as necessary
Clothes dryer Off
Clothes dryer vents Temporarily sealed
Dampers - intake, exhaust Physically closed or closed using control power or temporarily sealed
Diffusers, registers, grilles within the envelope
Temporarily sealed
Doors, personnel type, at the envelope perimeter
Secured closed
Doors, personnel type, within the envelope Secured (propped) open
Doors, roll-up type, at the envelope perimeter
Closed (no additional sealing)
Exhaust hoods Closed* and temporarily sealed
Pilot light and associated fuel valve Extinguished and closed, respectively
Vented combustion appliance Temporarily sealed *
Vented combustion appliance exhaust flue Off
Windows Secured closed
SECTION 07 05 23 Page 11
Building Component Envelope Condition
* If the building component has an associated manual or automatic damper, consider securing the damper closed in lieu of temporarily sealing.
3.5 CONDUCTING THE PRESSURE TEST
Notify the Contracting Officer at least 10 working days before conducting the pressure tests to provide the Government the opportunity to witness the tests and to monitor weather forecasts for conditions favorable for testing. Do not pressure test until verifying that the continuous air barrier is in place and installed without failures in accordance with installation instructions. During the pressure test periodically inspect temporarily sealed items to ensure they are still sealed. Seals on temporarily sealed items tend to release more readily at higher pressures. Test data obtained after temporarily sealed items become unsealed cannot be used as input into the calculation program. Follow the Envelope Pressure Test Procedures in the paragraphs below. Submit detailed pressure test procedures indicating the test apparatus, the test methods and procedures, and the analysis methods to be employed for the building envelope pressure (air tightness) test. Submit these procedures not later than 60 days after Notice to Proceed.
3.5.1 Extend Pneumatic Tubes and Establish a Reference Differential Pressure
Confirm the various zones within the envelope have a relatively uniform interior pressure distribution by establishing a representative differential pressure between the envelope and the outdoors with blower door or trailer-mounted fans operating. The number of indoor pressure difference measurements (pneumatic hoses) required depends on the number of interior zones separated by bottle necks that could create significant pressure drops (e.g. doorways and stairwells). Extend at least four pneumatic hoses (differential pressure monitoring ports) to locations within the envelope that are physically opposite of each other. In multiple story buildings, especially those over three stories, extend hoses to multiple floors. Locate the hose ends away from the effects of air discharge from blower test equipment. Select one of the four (or more) interior hoses, one judged by the test agency to be the most unaffected by air velocity produced by blower test equipment, to serve as the interior reference pressure port. Extend at least one additional pneumatic hose to the outdoors (outdoor pressure port). To the end of this hose manifold at least four hoses together and terminate each hose on a different side of the building. With the envelope sealed and the blowers energized, measure the differential pressure using the interior reference pressure port and the four outdoor pressure ports. Then measure and record the differential pressure by individually using each of the remaining three interior hoses. Ensure each reading is within plus or minus 10 percent of the reference reading. Thus at an average 75 Pa maximum pressure difference across the envelope, the difference between the highest and lowest interior pressure difference measurements should be 15 Pa or less. If this condition cannot be met, attempt to create additional air pathways within the envelope to minimize pressure differences within the envelope. If necessary, move the interior hose ends. See step 2.13 of the Air Leakage Test Form in Appendix A.
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3.5.2 Bias Pressure Readings
With the fan pressurization equipment de-energized and the envelope sealed, obtain the differential pressure between the outdoors and the envelope. Record 12 bias pressure readings before the pressure test and 12 bias pressure readings after the pressure test. Each reading is the average of ten or more 1-second measurements. Include positive and negative signs for each reading. To help dampen bias pressures that significantly contribute to test pressure, reduce temperature differences between indoor and outdoor air. Temperature differences can be reduced by operating test fan equipment for a few minutes to replace most of the indoor air with outdoor air.
3.5.3 Testing in Both Positive and Negative Directions
The preferred method for testing a building envelope is to test in both the pressurized and depressurized directions. Testing in one direction is only allowed if opposite direction testing cannot logistically be performed due to test equipment limitations or restrictions. After obtaining the pre-test bias differential pressure readings, conduct the pressure test. Record the envelope pressures (in units of Pascals) from one interior pneumatic hose (monitoring port) and the outdoor pneumatic hose(s), averaged or manifolded, with corresponding flows (in units of cfm ) for each fan. Record the flow rates at at least 10 to 12 positive and 10 to 12 negative building pressure readings. If conducting both positive and negative pressure tests the lowest allowable test pressure is 40 Pa and the highest test pressure is 85 Pa. Keep at least 25 Pa difference between the lowest and highest test pressure readings. Include the 75 Pa pressure value between the lowest and highest readings. The 10 to 12 readings in each direction are to be roughly evenly spaced along the range of pressures and flows. After testing is complete de-energize the equipment used to provide pressurization and obtain an additional 10 to 12 post-test bias pressure readings. None of the bias pressure readings are allowed to exceed 30 percent of the minimum test pressure. If these limits are exceeded the test fails and must be repeated.
3.5.4 Using a Building's Own Air Handling System to Pressure Test an Envelope
3.5.4.1 Test Setup
Temporarily seal the envelope in a manner similar to that for testing with blower door or trailer-mounted fans. To positively pressurize the envelope, de-energize all ventilation equipment and close all associated dampers, except those outside air intake dampers associated with supply fans that will be used to pressurize the building envelope. Fully open these dampers. For the negative pressure test, de-energize all ventilation equipment except for those fans that will be used to de-pressurize the envelope. All dampers associated with de-energized fans are to be closed and all exhaust dampers associated with fans used to de-pressurize the envelope will be fully opened.
3.5.4.2 Measuring Airflows
When using the building's own air handling system to pressure test the envelope, air flows can generally be measured using one of the following methods:
a. When testing using the building's own air handling system, ensure flow
SECTION 07 05 23 Page 13 readings obtained by anemometer comply with ASTM D3464. Pitot tube or hot wire anemometer traverse in accordance with ASTM D3464.
b. Pressure compensated shrouds (especially recommended for rooftop exhaust fans)
c. Tracer gas methods for measuring airflows in ducts in accordance with ASTM E2029. Do not use tracer gas decay, constant injection and constant concentration methods for estimating the total ventilation rate of the envelope.
3.5.4.3 Outdoor Air Flow Measuring Stations
Air flow stations may be used to measure outdoor airflows if one of the above methods is used to check accuracy of at least one air flow reading for each station or if the design of the HVAC system specifically placed outdoor air flow stations in locations that will yield accurate results.
Field verify the accuracy of readings at the air flow measuring stations before obtaining pressure test readings.
3.5.5 Pressure Testing - Special Cases
3.5.5.1 Pressure Testing a Tall or Large Building Envelope
Pressure testing the envelope of a tall or large building may be unworkable and unrealistic using blower door or trailer-mounted equipment. In this case, the test agency may define and pressure test separate zones or floors within the envelope and sum the leakage of all of the zones to create an overall envelope leakage rate. Using this method, the test agency is to comply with the requirements of ASHRAE RP-935.
3.5.5.2 Pressure Testing a Multiple Isolated Zoned Building
Pressure test each exterior corner zone plus at least an additional 20 percent (as measured by floor area) of remaining zones. The Contracting Officer is responsible for selecting which of these additional zones to test. If all zones pass the pressure test it is assumed that all untested zones also pass and no further testing is required. If, however, any zone fails to pass the test's leakage requirements, re-seal and re-test until it passes in accordance with paragraph FAILED PRESSURE TEST. Test an additional 20 percent of previously untested zones. If all tested zones pass, no further testing is needed. If any zone in this group fails the test re-seal and re-test the zone until it passes. Continue this process until all the tested zones pass. When testing a zone, the doors to all adjacent zones that share a common surface with the tested zone are to have their doors opened to the outdoors. The resulting leakage from the test zoned is that through all 6 sufaces (4 walls, roof and floor, for a rectangular shaped zone).
3.5.6 Failed Pressure Test
If the pressure test fails to meet the established criteria, use diagnostic test methods described in paragraph LOCATING LEAKS BY DIAGNOSTIC TESTING to discover the leak locations. Provide additional permanent sealing measures to reduce or eliminate leak sources discovered during diagnostic testing. Retest (perform another pressure test) after sealing has been completed. Repeat this sequence of documenting test results in the test report, performing diagnostic tests, documenting recommendations for additional sealing measures in the test report, SECTION 07 05 23 Page 14 sealing leak locations per recommendations, and re-testing as necessary until the building envelope passes the pressure test and is in compliance with the performance requirements.
3.5.7 Air Leakage Test Report
Report volumetric flow rates and corresponding differential pressures in cubic feet per minute (cfm) and Pascals (Pa), respectively, on the Air Leakage Test Form sample form found in Appendix A. Populate the accompanying spreadsheet file entitled Pressure Test Data Analysis with information obtained during the test. The spreadsheet uses equations found in ASTM E779 as a basis for calculating the envelope leakage rate.
Other similar leakage rate calculation programs cannot be used or submitted for review. Submit a printout of the data input and output in the report. Should any air tightness (pressure) test fail, the pressure test report is to include data and results from all previous failed tests along with the final successful test data and results. Indicate if the resulting leakage rate did or did not meet the goal leakage requirement.
Identify and document deficiencies in the building construction upon failure of a test to meet the specified maximum leakage rate.
Include the Test Agency Qualification Sheet, Air Leakage Test Form and Air Leakage Test Results Form in the written report. Document every test set-up condition with diagrams and photos to ensure the tests can be made repeatable. Document all pneumatic hose termination locations. Record in detail how the building envelope was prepared for the tests. Also describe in detail which building items were temporarily sealed. Include photos of test equipment and sealing measures in the report. Include an electronic (pdf) version of all test reports on a CD. If the building envelope fails to meet the leakage rate goal, provide recommendations to further seal the envelope and document these recommendations in the test report.
3.6 LOCATING LEAKS BY DIAGNOSTIC TESTING
Use diagnostic test methods described herein to discover obvious leaks through the envelope. Perform diagnostic tests on the building envelope regardless of the envelope meeting or failing to meet the designated leakage rate goal. Use diagnostic test methods in accordance with ASTM E1186 and in conjunction with pressurization equipment as necessary.
Use the thermography diagnostic test to establish a baseline for envelope leakage. Apply additional diagnostic tests (find, feel, or other tests) as necessary to further define leak locations and pathways discovered using thermography or to find additional leaks not readily detected by thermography. Using a variety of diagnostic tests may help locate leaks that would otherwise go undetected if only a single diagnostic test were used. Pay special attention to locating leaks at interfaces where there is a change in materials or a change in direction of like materials.
These interfaces, at a minimum, include roof/wall, wall/wall, floor/wall, wall/window, wall/door, wall/louver, roof mounted equipment/roof curb interfaces and all utility penetrations (ducts,pipes, conduit, etc) through the envelope's architecture. Also use diagnostic tests to check for leakage between the air duct and duct damper, when the damper, under normal control power, is placed in the closed position. Should leaks be discovered during diagnostic tests, thoroughly document their exact locations on a floor plan so that sealing can be later applied, if required or as directed. If the envelope passes the leakage test, use the diagnostic test procedure described above to identify obvious leakage locations. Seal the leaks at the discretion of the COR based on the
SECTION 07 05 23 Page 15 magnitude, location, potential for liquid moisture penetration or retention, potential for condensation, presence of daylight…
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