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3M Industrial Adhesives and Tapes Division Fluid-Applied Membrane Air Barriers
 
         
SECTION 07 27 26
 
         
FLUID-APPLIED MEMBRANE AIR BARRIERS
 
         
 
         
Copyright 2014 - 2014 ARCAT, Inc. - All rights reserved

          ** NOTE TO SPECIFIER ** 3M Industrial Adhesives and Tapes Division; building envelope barriers.
.
This section is based on the products of 3M Industrial Adhesives and Tapes Division, which is located at:
3M Center Building 0230-B-E-16
St. Paul, MN 55144-1000
Tel: 651-736-2070
Fax: 651-737-1920
Email: request info
Web: www.3m.com/contractor
[ Click Here ] for additional information.
3M is fundamentally a science-based company. We produce thousands of imaginative products, and we're a leader in scores of markets - from health care and highway safety to office products and abrasives and adhesives. Our success begins with our ability to apply our technologies - often in combination - to an endless array of real-world customer needs. Of course, all of this is made possible by the people of 3M and their singular commitment to make life easier and better for people around the world.
 
          PART 1GENERAL
 
          1.1SECTION INCLUDES
          ** NOTE TO SPECIFIER ** Delete items below not required for project.
 
          A.Fluid-applied membrane air barriers and accessories.
 
          1.2RELATED SECTIONS
          ** NOTE TO SPECIFIER ** Delete any sections below not relevant to this project; add others as required.
 
          A.Section 03 30 00 - Cast-in-Place Concrete.
 
          B.Section 04 20 00 - Unit Masonry.
 
          C.Section 09 21 16.23 - Gypsum Board Shaft Wall Assemblies
 
          D.Section 06 16 36 - Wood Panel Product Sheathing.
 
          E.Section 07 25 00 - WeatherBarriers.
 
          F.Section 07 40 00 - Roofing and Siding Panels.
 
          G.Section 07 40 00 - Roofing and Siding Panels.
 
          H.Section 07 62 00 - Sheet Metal Flashing and Trim.
 
          I.Section 07 91 26 - Joint Fillers.
 
          J.Section 08 11 00 - Metal Doors and Frames.
 
          K.Section 08 54 13 - Fiberglass Windows.
 
          1.3REFERENCES
          ** NOTE TO SPECIFIER ** Delete references from the list below that are not actually required by the text of the edited section.
 
          A.AAMA 711-07 - Voluntary Specification for Self-Adhering Flashing Used for Installation of Exterior Wall Fenestration Products.
 
          B.AATCC Test Method 127 - Water Resistance: Hydrostatic Pressure Test.
 
          C.ASTM International (ASTM):
          1.ASTM C679 - Standard Test Method for Tack-Free Time of Elastomeric Sealants.
          2.ASTM C920 - Standard Specification for Elastomeric Joint Sealants.
          3.ASTM D412 - Standard Test Methods for Vulcanized Rubber and Thermoplastic Elastomers - Tension.
          4.ASTM D1970 - Standard Specification for Self-Adhering Polymer Modified Bituminous Sheet Materials Used as Steep Roofing Underlayment for Ice Dam Protection.
          5.ASTM D3330 - Standard Test Method for Peel Adhesion of Pressure-Sensitive Tape.
          6.ASTM D3652 - Standard Test Method for Thickness of Pressure-Sensitive Tapes.
          7.ASTM D4541 - Test Method for Pull-Off Strength of Coatings Using Portable Adhesion Testers.
          8.ASTM E84 - Standard Test Method for Surface Burning Characteristics of Building Materials.
          9.ASTM E96 - Standard Test Methods for Water Vapor Transmission of Materials.
          10.ASTM E331 - Standard Test Method for Water Penetration of Exterior Windows, Skylights, Doors, and Curtain Walls by Uniform Static Air Pressure Difference.
          11.ASTM E783 - Standard Test Method for Field Measurement of Air Leakage Through Installed Exterior Windows and Doors.
          12.ASTM E1105 - Standard Test Method for Field Determination of Water Penetration of Installed Exterior Windows, Skylights, Doors, and Curtain Walls, by Uniform or Cyclic Static Air Pressure Difference.
          13.ASTM E1186 - Standard Practices for Air Leakage Site Detection in Building Envelopes and Air Barrier Systems.
          14.ASTM E2178 - Standard Test Method for Air Permeance of Building Materials.
          15.ASTM E2357 - Standard Test Method for Determining Air Leakage of Air Barrier Assemblies.
 
          D.LEED NC, Version 2.2, Environmental Quality Credit 4.1 - USGBC's Rating System for New Construction and Major Renovations.
 
          E.LEED CS, Version 2.0, Environmental Quality Credit 4.1 - USGBC's Rating System for Core and Shell.
 
          F.LEED CI, Version 2.1, Environmental Quality Credit 4.1 - USGBC's Rating System for Commercial Interiors.
 
          1.4PERFORMANCE REQUIREMENTS
 
          A.Material Performance:
          1.Air Permeance of Membrane: Less than ASTM E2178, 0.004 cfm/ft2 at 1.57 psf (0.02 L/s/m2 at 75 Pa)
          2.Water Vapor Permeance of Membrane: ASTM E96
          a.Desiccant method, Procedure A; 18.3 US Perm (1040 ng/Pa s m2)
          b.Water method, Procedure B; 31.5 US Perm (1800 ng/Pa s m2)
          3.Water Resistance of Membrane: AATCC Test Method 127, deviated, 2.16 inches (55 cm) of water for 5 hours; no leakage.
          4.Flammability:
          a.Surface burning characteristics: ASTM E84:
          1)Membrane: flame spread index of 15, smoke developed value of 0.
          2)Termination membrane: flame spread index of 15, smoke developed value of 45.
 
          B.Assembly Performance:
          1.Air Leakage: Less than ASTM E2357, 0.04 cfm/ft2 at 1.57 psf (0.2 L/s/m2 at 75 Pa).
          2.Loads from imposed pressures: Withstands design wind, fan, and stack pressures, both positive and negative, without damage or displacement of the air barrier assembly or adjacent materials. Allows transfer of these loads to the structure.
          3.Movement: Allows for thermal, creep, and anticipated seismic and building movement within the air barrier assembly, each air barrier detail, and transitions to adjacent systems without breaching the air barrier system or negating specified air leakage performance.
          4.Continuity: Joins air barrier materials and adjacent compatible materials and systems preventing air leakage and maintaining specified air leakage performance at the following locations and as shown on the Drawings:
          a.Transitions from roof air barrier to wall.
          b.Transitions from window, curtain wall, storefront, louvers, and doors to wall.
          c.Transitions from foundation waterproofing to wall.
          d.Transitions from one type of exterior cladding to another.
          e.Across construction, control, expansion, and seismic joints.
          f.Penetrations of utilities, pipes, conduit, and ducts.
          g.Penetrations of ties, anchors, and channels for exterior finishes.
          h.Pathways for potential air leakage into the building envelope.
 
          1.5ADMINISTRATIVE REQUIREMENTS
 
          A.Coordination:
          1.Work of this Section with the work of other Sections that have work or materials connected to or passing through the air barrier assembly.
          2.Sequence of construction to ensure continuity of the air barrier assembly at openings, transitions, and penetrations.
          3.Coordinate with installation of materials which cover the air barrier assemblies, to ensure exposure period does not exceed 6 months.
          4.Coordinate field observations and testing by specified parties.
          ** NOTE TO SPECIFIER ** The pre-installation meeting may be deleted if the size and complexity of the project does not require prior coordination and review of the barrier system installation. A pre-installation meeting is recommended when an air barrier function is required for the building to allow coordination with other trades; review of the mock-up and project substrates and conditions; and to review proper installation details.
 
          B.Pre-installation Meeting: Prior to starting installation of the barrier system, conduct a pre-installation meeting at the job site to review the Project conditions and installation requirements.
          1.Attendance is required by:
          a.Installing contractor of the air barrier assembly.
          b.Representatives of related trades including exterior cladding, air barrier substrate, penetrating work and systems, and adjacent materials.
          c.General Contractor.
          d.Architect/Engineer.
          e.Air barrier system manufacturer's field representative.
          f.Owner's representative.
          g.Third-party observer.
          h.Field testing agency.
          2.Agenda shall include:
          a.Construction and testing of the mock-up.
          b.Sequence of construction and protection of installed air barrier assembly.
          c.Substrate condition and preparation.
          d.Materials approved for use.
          e.Compatibility of materials.
          f.Transition details between the various different types of barrier systems specified.
          g.Coordination with installation of adjacent and cladding materials.
          h.Project-specific details of construction.
          i.Safety plans.
          j.Field observation and testing.
          k.Repair of test and damaged areas.
 
          1.6SUBMITTALS
 
          A.Submit under provisions of Section 01 30 00 - Administrative Requirements.
 
          B.Prior to Installation:
          1.Qualifications:
          a.Submit manufacturer's letter verifying installing contractor's experience with the specified self-adhered sheet membrane air barrier.
          b.Submit project references within the last 5 years of similar-sized projects with fluid-applied membrane air barrier assembly installation by the proposed installing contractor.
          ** NOTE TO SPECIFIER ** Insert required submittals for adhering to the ABAA Quality Assurance Program. Also insert required language under Field Quality Control. See ABAA's Master Specification.
          2.Product Data: Provide the manufacturer's technical data sheet on the barrier assembly materials stating that each material meets the specified performance requirements.
          3.MSDS: Provide the manufacturer's MSDS on the air barrier assembly materials.
          4.Installation Instructions: Submit manufacturer's installation instructions along with manufacturer's standard details applicable to the project.
          5.Manufacturer's compatibility letter: Submit signed letter stating project name, list of the specific air barrier materials, substrates, and adjacent system materials; that are compatible, both chemically and adhesively.
          6.Shop drawings: Project specific details with actual product names on details including:
          a.Typical conditions.
          b.Transitions to adjacent systems.
          c.Mock-up, including plans, elevations, large-scale details, and air barrier assembly transitions and terminations.
          7.Warranty: Submit manufacturer's sample warranty.
 
          C.During mock-up construction, air barrier installation, and within 7 days of site visit:
          1.Field observation reports by manufacturer's field representative and third-party observer, including observation of field testing.
          2.Field test reports of the air and water infiltration testing of the mock-up and the Work by the field testing agency.
          ** NOTE TO SPECIFIER ** Delete selection samples if colors have already been selected.
 
          D.Selection Samples: For each finish product specified, two complete sets of color chips representing manufacturer's full range of available colors and patterns.
 
          E.Verification Samples: For each finish product specified, two samples, minimum size 6 inches (150 mm) square representing actual product, color, and patterns.
 
          1.7QUALITY ASSURANCE
 
          A.Manufacturer Qualifications: Minimum 5 year experience manufacturing similar products.
          1.Barrier system components shall be produced by and obtained from a single manufacturer of the specified fluid-applied membrane air barrier assembly.
 
          B.Installing contractor:
          1.Minimum of 5 years' experience with installation of fluid-applied membrane air barrier assembly.
          2.Show evidence of adequate equipment and trained installers to successfully complete the Work.
 
          C.Accredited laboratory testing for materials: Accredited by International Accreditation Service, Inc. (IAS) or American Association for Laboratory Accreditation (A2LA).
 
          D.Field Quality Assurance:
          1.Schedule field tests for air and water infiltration, and membrane adhesion of the mock-up and the Work as described in Field Quality Control of this Section. Coordinate observations of the tests by the third-party observer.
          ** NOTE TO SPECIFIER ** The mock-up may be deleted if the size and complexity of the project does not require it. A mock-up is recommended when an air barrier function is required to allow coordination with the work of other trades and installation materials/sequence between different substrates or different air barrier systems.
 
          E.Mock-Up
          1.Demonstrate the proper installation sequence and workmanship required for the air barrier assembly installation at typical conditions, transitions, openings, and penetrations through the exterior building envelope.
          2.Build a minimum of 8 feet tall by 8 feet wide (2438 mm by 2438 mm) exterior wall panel incorporating the back-up wall, window with sill, door frame, through-wall flashing, insulation, cladding, foundation, roof edge, and building corner. Show all air barrier assembly materials and seals. Coordinate with the Third-party Testing Agency for the size of testing area required for field testing the mock-up and allow testing prior to fully installing the insulation and cladding. Refer to Field Quality Control of this Section for test methods and quantity of tests.
          3.Do not install any barrier materials on the building until the mock-up is reviewed and approved by the air barrier manufacturer's field representative, Owner, Architect/Engineer, and Third-party Observer.
          4.Approved mock-up represents the minimum quality for the Work for the air barrier assembly installation. Materials and installation procedures utilized in the mock-up become the standard of quality and construction for all subsequent similar conditions on the building.
          5.Remove the mock-up only after approval by the Owner and Architect/Engineer.
 
          1.8DELIVERY, STORAGE & HANDLING
 
          A.Deliver and store air barrier materials and components in manufacturer's original, unopened, undamaged containers with identification labels intact.
 
          B.Storage of air barrier materials:
          1.Warehouse: Refer to manufacturer's product data.
          2.Construction site: Within ambient temperatures during application.
 
          C.Protect air barrier materials from damage from sunlight, weather, and construction operations.
 
          D.Use From Date of Manufacture:
          1.Fluid-applied membrane: Within 6 months.
          2.Termination membrane: Within 24 months.
 
          1.9PROJECT CONDITIONS
 
          A.Required Ambient Temperatures During Application Between:
          1.Fluid-Applied Membrane: 25 degree F to 100 degree F (-4 degree C to 38 degree C).
          2.Termination Membrane: 0 degree F to 150 degree F (-18 degree C to 66 degree C).
          3.Sealant: 40 degrees F to 95 degrees F (5 degree C to 35 degree C).
 
          B.Install on substrates clear of snow, ice, frost, and liquid moisture. Substrates can be damp during installation.
 
          C.Do not install in snow, rain, fog, or mist. Do not apply within 1 hour of a rain event.
 
          D.Maximum UV exposure time of the air barrier assembly without cover or cladding: Six months.
 
          E.Provide weather protection at the top of walls and unfinished roofs at the end of each day.
 
          F.Protect adjacent areas by covering or masking.
 
          1.10SEQUENCING
 
          A.Ensure that products of this section are supplied to affected trades in time to prevent interruption of construction progress.
         
3M Industrial Adhesives and Tapes Division Fluid-Applied Membrane Air Barriers
 
          B.Product Warranty: Provide manufacturer's product warranty for a minimum of five years from date of Substantial Completion with installation completed by a certified applicator.
 
          C.Workmanship Warranty: Provide workmanship warranty for a minimum of one year from date of Substantial Completion including all air barrier assembly materials and accessories, against failures including loss of air tight seal, loss of watertight seal, loss of attachment, loss of adhesion, and failure to cure properly.
 
          PART 2PRODUCTS
 
          2.1MANUFACTURERS
 
          A.Acceptable Manufacturer: 3M Industrial Adhesives and Tapes Division, which is located at: 3M Center Building 0230-B-E-16; St. Paul, MN 55144-1000; Tel: 651-736-2070; Fax: 651-737-1920; Email: request info; Web: www.3m.com/contractor
          ** NOTE TO SPECIFIER ** Delete one of the following two paragraphs; coordinate with requirements of Division 1 section on product options and substitutions.
 
          B.Substitutions: Not permitted.
 
          C.Requests for substitutions will be considered in accordance with provisions of Section 01 60 00 - Product Requirements.
          ** NOTE TO SPECIFIER ** 3M™ Liquid Air Barrier 2085VP is a single component, polyether-based, water vapor permeable, air barrier membrane that dries fast, sticks to damp surfaces and can be applied at temperatures as low as 25 degrees F (-4 degrees C). The air barrier assembly of 3M™ Liquid Air Barrier 2085VP with accessories of 3M™ Self-Adhered Air and Vapor Barrier Membrane 3015 and 3M™ Polyurethane Construction Sealant 525 meets ASTM E2357 requirements. Edit to conform to the specific barrier function(s) and requirements required by the assembly design and the language coordinated to match the barrier callouts included on the Drawings.
 
          2.2AIR BARRIER ASSEMBLY
 
          A.Assembly:
          1.Membrane: 3M Liquid Air Barrier 2085VP.
          a.Description: White liquid applied membrane
          b.Total Membrane Thickness: ASTM D3652
          1)Exterior gypsum sheathing: 26 mils (0.66 mm), wet
          2)CMU: 35 mils (0.89 mm), wet
          c.Tack Free: ASTM C679, 1 hour at 70 degrees F at 50% relative humidity
          2.Accessory Materials:
          a.Sealant: 3M Polyurethane Sealant 540; a one component, moisture curing sealant
          1)ASTM C920, Type S, Grade NS, Class 25
          2)Tack free: 60-90 minutes at 73 degrees F at 50% relative humidity
          b.Sealant: 3M Polyurethane Construction Sealant 525; a one component, moisture curing sealant
          1)ASTM C920, Type S, Grade NS, Class 25
          2)Tack free: 90-150 minutes at 73 degrees F at 50% relative humidity
          c.Termination Membrane: 3M Self-Adhered Air and Vapor Barrier Membrane 3015 in detail widths.
          1)Description: Tan colored, semi-transparent proprietary film with acrylic adhesive and silicone coated release liner.
          2)Weight: 13.4 oz/yd2 (464 g/m2)
          3)Total Membrane Thickness: ASTM D3652, 10 mils (0.25 mm).
          d.Primer for Flashing Application at Difficult Substrates: Test adhesion before application. See Preparation in this Section. Select from the following products.
          1)3M Hi-Strength 90.
          2)3M Hi-Strength 94 ET Spray Adhesive.
          3)3M Scotch-Weld Holdfast 70.
          4)3M Fastbond™ Contact Adhesive 30NF.
 
          B.Material Performance:
          1.Total Thickness: ASTM D3652
          a.Membrane:
          1)Exterior gypsum sheathing: 26 mils (0.66 mm), wet.
          2)CMU/Plywood: 35 mils (0.89 mm), wet.
          b.Termination membrane: 10 mils (0.25 mm).
          2.Tack Free Time: 1 hour (ASTM C679) Full Cure: 8 hours.
          3.Air Permeance of Membrane: ASTM E2178, <0.00006 cfm/ft2 at 1.57 psf (<0.0003 L/s/m2 at 75 Pa)
          4.Air leakage of Assembly: ASTM E2357
          a.Opaque wall: <0.0000 cfm/ft2 at 1.57 psf (<0.0000 L/s/m2 at 75 Pa).
          b.Penetrated wall: <0.0000 cfm/ft2 at 1.57 psf (<0.0000 L/s/m2 at 75 Pa).
          5.Pull Adhesion of Membrane: ASTM D4541, exceeds minimum 110 kPa
          a.Concrete: 165.0 psi (1137.6 kPa)
          b.Exterior Grade Gypsum Board: Method B, 49.2 psi (339.0 kPa)
          6.Elongation at Break: ASTM D412
          a.Membrane: 350%
          b.Sealant: > 600%
          c.Termination membrane (3015): 700%
          7.Tensile Strength: ASTM D412
          a.Membrane: 150 psi (1.03 MPa)
          b.Sealant 525: 400 psi (2.76 MPa)
          c.Termination membrane: 1740 psi (12.00 MPa)
          8.Compatibility of Membrane: No adverse reaction with synthetic rubber, butyl, polyurethane, silicone, and silane terminated hybrid sealants.
          9.Lap Adhesion of Termination Membrane (3015): ASTM D3330, 40 oz/inch (0.44 N/mm).
          10.Low Temperature Flexibility of Termination Membrane (3015): ASTM D1970, Section 7.6, at -22 degree F (-30 degree C); passes bend test and no leakage during water head test
          11.Nail Sealability of Air Barrier Membrane (2085VP) and Termination Membrane (3015):
          a.ASTM D1970, Section 7.9, 5 inches (127 mm) of water head after 3 days; dry and passes.
          b.ASTM E331/547, as modified per AAMA-711-07, Annex 1; passes initial and after thermal cycling.
 
          PART 3EXECUTION
 
          3.1EXAMINATION
 
          A.Substrate surfaces shall be free of grease, dirt, debris, oil, unbonded paint, corrosion or other substances.
 
          B.Verify that substrate construction is complete, clean, dry or damp, and ready to receive barrier system with no damaged or unsupported areas; or sharp protrusions or voids. Substrate shall meet the following requirements:
          ** NOTE TO SPECIFIER ** Delete the substrates listed below that are not applicable to project. For substrate materials not listed, consult 3M for recommendations.
          1.Exterior gypsum sheathing: Moisture content below 19%; no open joints or cracks wider than 1/4 inch (6 mm).
          2.Plywood: Moisture content below 16%; no open joints or cracks wider than 1/4 inch (6 mm).
          3.Concrete surfaces: Cured minimum 3 days,fins and extrusions ground flush and void areas filled and cured
          4.Masonry: Mortar joints shall be tooled smooth, remove mortar extrusions including at the brick ties
          5.Metal: Wipe down to remove any release agents or coatings
 
          C.Start of air barrier material installation indicates Installing Contractor's acceptance of the substrate and installation conditions.
 
          3.2PREPARATION
 
          A.Connection to Difficult Substrates and Other Systems:
          1.Test adhesion of membrane, termination membrane, and flashing by installing a 6 inches (152 mm) square test patch of the material over the difficult substrate or other system. Removal of the test patch should not be possible without permanent damage to either the test patch or substrate material.
          2.Consult the manufacturer for detailing connections that fail this test.
 
          B.Gaps or cracks in substrate exceeding 1/4 inch (6 mm) width: Fill gap or crack with sealant and tool surface flush and smooth.
 
          C.Gaps or cracks in substrate exceeding 1 inch (13 mm) width: Mechanically fasten metal sheet or approved transition material to span the gap or crack.
 
          D.Penetrations of air barrier assembly: Fill gaps or cracks exceeding 1/4 inch (6 mm) width between the substrate and the penetration with sealant.
          ** NOTE TO SPECIFIER ** Delete or expand the installation as applicable to project.
 
          3.3AIR BARRIER ASSEMBLY INSTALLATION
 
          A.Install air barrier assembly in accordance with manufacturer's instructions in locations shown on the Drawings to provide a continuous air barrier assembly.
 
          B.Membrane
          1.Application Equipment:
          a.Pump: Graco Mark V, GH 733, GH 833, or equivalent.
          b.Tip Sizes: 525, 527, and 625.
          c.Hose length and gauge: 200 linear feet of 1/2 inch hose
          2.Apply liquid membrane to a wet thickness of 26 mils (0.66 mm) for exterior gypsum sheathing and 35 mils (0.89 mm) for CMU.
          3.Through-wall flashings: Seal top edge of through-wall flashing with manufacturer approved sealant.
          4.Transitions to Adjacent Systems: Refer to Drawings for project specific detailing of transitions to the roof, foundation waterproofing, and door systems.
 
          C.Termination Membrane and Flashing:
          1.Cut membrane to length and wind up into a roll. Fold the starting edge back over itself to crease the paper release liner. Peel back the liner to expose the 2 to 3 inches (51 mm to 76 mm) starting strip of the membrane. Do not contaminate the starting strip with dust or debris before applying it to the intended surface.
          2.Install membrane in "weatherboard" or "shingle fashion". Stagger all adjacent vertical joints.
          3.Align and set the membrane in place, rolling the product back against the exposed adhesive. Simultaneously unwind the roll pulling the release liner, maintaining pressure against the substrate to tack the membrane in place. Wipe the membrane down with a feathering motion from the middle outward to obtain a smooth surface.
          4.Lap a minimum of 2 inches (51 mm). Roll the membrane with a rubber roller to ensure a tight seal against the wall and between overlapped edges.
          5.Install 6 inches (152 mm) wide membrane at inside and outside vertical corners and construction joints, lapping a minimum of 2 inches (51 mm) on either side.
          6.Carefully execute detail work to ensure a continuously sealed building envelope.
          7.Seal the leading edge of the unfinished membrane installation at the end of each work day with sealant. Smooth the sealant bead to the surface to avoid creating a projecting obstruction.
          8.Repair all wrinkles and fish mouths extending within 2 inches (51 mm) of the membrane edge with a repair membrane piece extending 6 inches (152 mm) beyond the defect.
 
          D.Window and Louver Openings:
          1.Wrap rough openings as detailed in the Drawings with either termination membrane in detail widths or flashing material.
          2.Install sealant at each inside corner of the window sill, jamb, and head.
          3.Apply detail strips of termination membrane at each inside corner extending the full depth of the sill and a minimum 2 inches (51 mm) onto the face.
          4.Install detail strips at the sill, jambs, and head in lengths beyond window opening extending the full depth of the sill.
          5.Apply reinforcing piece cut into a football, bowtie, or butterfly shape at each corner.
          6.Install membrane in "weatherboard" or "shingle fashion" with a minimum 2 inches (51 mm) overlap at all detail strips.
 
          E.Penetrations:
          1.Seal all penetrations with sealant. Install flashing or membrane material cut to length to allow installation around the full circumference of penetration.
          2.Masonry Ties or Anchors:
          a.Post-applied: Install back plate of tie or anchor over the air barrier with self-tapping screws. Apply sealant over the screw heads.
          b.Knife plate: Cut a one piece termination membrane to overlap minimum 2 inches (51 mm) in each direction of the knife plate. Cut a slot for the knife plate and apply the membrane over. Apply sealant at the knife plate penetration perimeter.
          3.Utilities, Pipes, Conduit, and Duct Penetrations:
          a.Apply sealant between the penetration and the exterior wall.
          b.Apply termination membrane to allow continuous 2 inches (51 mm) overlap onto vent/pipe penetration and cut "fingers" to transition to the exterior wall.
          c.Install a narrow, termination membrane collar strip around the circumference of the penetration perimeter, lapping onto the penetration and substrate.
          d.Install one piece termination membrane with penetration shape cut out on to the substrate. Apply over "fingers" on the substrate and extend a minimum of 2 inches (51 mm) beyond the penetration perimeter.
          e.Apply sealant at the penetration perimeter and cut edge of the one piece membrane.
 
          F.Substrate transitions and building joints: See Drawings for project specific detailing with backer rod, sealant, and termination membrane.
 
          G.Repairs: Apply termination membrane 6 inch larger than test or damage area. Seal cut edges of membrane with sealant.
 
          3.4FIELD QUALITY CONTROL
 
          A.Third-party testing agency: Cooperate with the third-party testing agency. Provide access and utilities to testing areas of work. Do not cover air barrier assembly until testing is completed and accepted. Submit test results as specified under Submittals of this Section.
 
          B.Tests:
          ** NOTE TO SPECIFIER ** Insert quantity of testing with testing agency.
          1.Qualitative air leakage: ASTM E1186. Conduct at the mock-up and at select locations of the Work.
          2.Quantitative air leakage: ASTM E783, at 1.57 psf (75 Pa). Conduct at the mock-up and at select locations of the Work.
          3.Water penetration: ASTM E1105. Conduct at the mock-up and at select locations of the Work.
          4.Membrane adhesion: ASTM D4541, modified. Use a Type II Pull Tester. Cut through the membrane at the perimeter of the disc.
          a.Conduct sets at the mock-up and sets at select locations 24 hours after installation. Each set includes three adhesion tests.
          b.Record the mode of failure and area where material failed.
          c.Record the adhesion level from the gauge at the end of the test.
          5.Repair all test areas to conform to the project specifications.
          6.Repair or take corrective action all non-conforming work to meet the project specifications.
 
          3.5PROTECTION AND CLEANING
 
          A.Protect air barrier materials from damage during installation and the remainder of the construction period.
 
          B.Clean spillage and soiling from adjacent construction using cleaning agents and procedures recommended by manufacturer of affected construction and acceptable to the air barrier assembly manufacturer.
 
          C.Spray applied membrane should not be applied in excessive winds. Care should be taken to minimize overspray during application. Protection of adjacent, finished, surfaces is recommended.
 
         
END OF SECTION