ADDENDUM 003 - FAKZ999088 and FAKZ189019.pdf

PDF 446 KB Posted

Attached to
187 FW F35 Simulator & Base Supply New Construction
Solicitation number
W50S6N-22-B-0001
Issued by

About this file

This document contains an addendum to the specifications for an F-35 Simulator Facility project and a related federal contract opportunity notice. The addendum provides revisions to the weather barrier specifications section, requiring a single source manufacturer for the weather barrier system and components to ensure compatibility. It also modifies language around applying the vapor permeable membrane over masonry anchors.

The federal contract opportunity is a solicitation from the 187th Fighter Wing of the Alabama Army National Guard. It seeks firms to submit fixed-price bids for the consolidated construction of a new 19,000 square foot F-35 Simulator Facility and 39,000 square foot Base Supply complex. The project budget is between $10-25 million. The NAICS code is 236220 and it is 100% set aside for small businesses with a size standard of $39.5 million. A pre-bid conference will be held on October 26th, followed by a site visit. Interested vendors must submit an entry authorization list by October 21st.

View the file

Other files

File Type Posted
W50S6N-22-B-0001-0002.pdf PDF
W50S6N-22-B-0001-0001.pdf PDF
W50S6N-22-B-0001-0003.pdf PDF
ADDENDUM 2 FAKZ999088 and 189019 SIGNED.pdf PDF
RFI RESPONSES 001 FAKZ999088 and 189019 REVISED SIGNED.pdf PDF
W50S6N-22-B-0002-0002.pdf PDF
FAKZ999088 - FAKZ189019 Addendum Number 1.pdf PDF
W50S6N-22-B-0002-0001.pdf PDF
Pre Bid Slides_SIMSUPPLY.pdf PDF
Pre Bid Attendance Roster.pdf PDF
J and A for Brand Name-Sole Source - Krieger_Redacted.pdf PDF
Attachment 6_FAKZ999088 SPECS VOL 1.pdf PDF
Attachment 4_FAKZ189019 Specs VOL 1.pdf PDF
Attachment 7_FAKZ999088 SPECS VOL 2.pdf PDF
Attachment 2_FAKZ999088 B3 Drawings.pdf PDF
J and A for Brand Name-Sole Source - Stanley Best Locks_Redacted.pdf PDF
J and A for Brand Name-Sole Source - Advantor_Redacted.pdf PDF
J and A for Brand Name-Sole Source - Johnson Controls_Redacted.pdf PDF
Attachment 3_Consolidated General Specs.pdf PDF
Attachment 5_FAKZ189019 Specs VOL 2.pdf PDF
Justification and Approval for Brand Name-Sole Source - Pavers_Redacted.pdf PDF
Attachment 1_FAKZ189019 B3 Drawings.pdf PDF
W50S6N-22-B-0001 Solicitation.pdf PDF
J and A for Brand Name-Sole Source - Monaco_Redacted.pdf PDF
Entry Auth List.pdf PDF
Show all 25

On GovTribe

Work with this file

  • Download the original file
  • Contacts named in this file
  • Similar government files
  • Ask GovTribe AI about this file

Text version

NEW BASE SUPPLY COMPLEX FAKZ999088

F35 SIMULATOR FACILITY FAKZ189019

ADDENDUM NO. 3 Page 1 of 1

Seay Seay & Litchfield, P.C. 24 November 2021

Date: 24 November 2021

To: TSgt. Ben Scott

Subject: ADDENDUM NO. 3

Project: CONSOLIDATED AWARD OF NEW BASE SUPPLY COMPLEX

AND F-35 SIMULATOR FACILITY

Job #: ANG# FAKZ999088 / FAKZ189019

SSL# 18042 / 18049

From: Jacob Johnson

The Specifications for the Consolidated General Requirements for the F35 Simulator

Facility (FAKZ189019), dated 31 March 2021 are amended as follows. (Where there are conflicts between the plans and specifications and the addendum, this addendum shall govern).

Item No. 1: No changes are included as part of this addendum.

The plans and Specifications for the F35 Simulator Facility, dated 31 March 2021 are amended as follows. (Where there are conflicts between the plans and specifications and the addendum, this addendum shall govern).

Item No. 1: Refer to Specifications and Addendum #2. Delete specification section 07

2500 – Weather Barriers and replace it with attached specification section

07 2500 with a revised date of 24 November 2021. Revisions are noted with bold, italicized, and struck through text.

The plans and Specifications for the New Base Supply Complex, dated 31 March 2021 are amended as follows. (Where there are conflicts between the plans and specifications and the addendum, this addendum shall govern).

Item No. 1: No changes are included as part of this addendum.

End of Addendum #3

ATTACHMENTS:

F-35 Simulator Facility 18049/FAKZ 189019 31 March 2021

187th Fighter Wing, Dannelly Field ANG Revised Type B-3 (100%) Submittal

Montgomery, AL Revised 24 November 2021

WEATHER BARRIERS 07 2500 - 1

SECTION 07 2500 - WEATHER BARRIERS

PART 1 - GENERAL

1.01 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including Requirements of the

Government's Solicitation and Division 01 Specification Sections, apply to this Section.

1.02 SUMMARY

A. This Section includes the following:

1. Materials and installation methods for fluid applied, vapor permeable air barrier membrane system located in the non-accessible part of the wall.

2. Materials and installation methods to bridge and seal air leakage pathways in window and door openings, control and expansion joints, masonry ties, piping and other penetrations through the wall assembly.

B. Related Sections include the following:

1. Section 04 2000 – Unit Masonry

2. Section 05 4000 – Cold-Formed Metal Framing

3. Section 06 1000 – Rough Carpentry

4. Section 07 1300 – Sheet Waterproofing

5. Section 07 6200 – Sheet Metal Flashing and Trim

6. Section 07 9005 – Joint Sealers

C. Provide single source manufacturers for Section 07 2500 Weather Barrier, Section 07

6500 Wall Flashing, Termination Bars (refer to 07 6500), and termination bar sealants

(refer to 07 9005) as required to ensure compatibly among all products installed as a part of the moisture control assembly at the exterior walls.

1. Where single source cannot be provided, notify the Government and provide written verification from manufacturers of all products intended for installation to ensure products from multiple manufacturers are compatible and all specified warranties can be provided and maintained in full force and effect for the entirety of the specified warranty periods for each product. (Modified by Addendum No. 3)

WEATHER BARRIERS 07 2500 - 2

1.03 DEFINITIONS

A. Air Barrier Assembly: The collection of air barrier materials and auxiliary materials applied to an opaque wall, including joints and junctions to abutting construction, to control air movement through the wall. (Refered to as Air Barrier on drawings).

1.04 PERFORMANCE REQUIREMENTS

A. General: Air barrier shall be capable of performing as a continuous vapor-permeable air barrier and as a liquid-water drainage plane flashed to discharge to the exterior incidental condensation or water penetration. Air barrier assemblies shall be capable of accommodating substrate movement and of sealing substrate expansion and control joints, construction material changes, and transitions at perimeter conditions without deterioration and air leakage exceeding specified limits.

1. The building envelope shall be designed and constructed with a continuous air barrier to control air leakage into, or out of the conditioned space. An air barrier shall also be provided for interior partitions between conditioned space and space designed to maintain temperature or humidity levels which differ from those in the conditioned space by more than 50% of the difference between the conditioned space and design ambient conditions. The air barrier shall have the following characteristics:

a. It must be continuous, with all joints made airtight.

b. It shall have an air permeability not to exceed 0.004 cfm/sq. ft. under a pressure differential of 0.3 in. water. (1.57 psf.) (equal to 0.02L/sq. m @ 75

Pa.).

c. It shall be capable of withstanding positive and negative combined design wind, fan and stack pressures on the envelope without damage or displacement, and shall transfer the load to the structure. It shall not displace adjacent materials under full load.

d. It shall be durable or maintainable.

e. The air barrier shall be joined in an airtight and flexible manner to the air barrier material of adjacent systems, allowing for the relative movement of systems due to thermal and moisture variations and creep. Connection shall be made between:

1) Walls and windows or doors.

WEATHER BARRIERS 07 2500 - 3

2) Different wall cladding systems.

3) Wall over unconditioned space.

4) Walls across construction, control and expansion joints.

5) Walls to utility, pipe and duct penetrations.

6) All penetrations of the air barrier and paths of air infiltration/exfiltration shall be made airtight.

f. Recoat over all penetrations after air barrier intial installation to include but not limited to screws for brick ties and termination bars.

1.05 REFERENCES

A. The following standards and publications are applicable to the extent referenced in the text. The most recent version of these standards is implied unless otherwise stated.

B. American Society for Testing and Materials (ASTM)

1. C920 Specifications for Elastomeric Joint Sealants

2. C1193 Guide for Use of Joint Sealants

3. D412 Standard Test Methods for Rubber Properties in Tension

4. D570 Test Method for Water Absorption of Plastics

5. D1004 Test Method for Initial Tear Resistance of Plastic Film and Sheeting

6. D1876 Test Method for Peel Resistance of Adhesives

7. D1938 Test Method for Tear Propagation Resistance of Plastic Film and Sheeting

8. D1970 Standard Specification for Self-Adhering Polymer Modified Bituminous

Sheet Materials Used as Steep Roofing Underlayment for Ice Dam Protection

9. D4258 Practice for Surface Cleaning Concrete for Coating

10. D4263 Test Method for Indicating Moisture in Concrete by the Plastic Sheet

Method

11. E96 Test Methods for Water Vapor Transmission of Materials

12. E154 Test Methods for Water Vapor Retarders Used in Contact with Earth Under

Concrete Slabs, on Walls, or as Ground Cover

WEATHER BARRIERS 07 2500 - 4

13. E162 Test Method for Surface Flammability of Materials Using a Radiant Heat

Source

14. E1186 Practice for Air Leakage Site Detection in Building Envelopes and Air

Retarder Systems

15. E2178-01 Standard Test Method for Air Permeance of Building Materials

1.06 SUBMITTALS

A. Product Data: Include manufacturer's written instructions for evaluating, preparing, and treating substrate; technical data; and tested physical and performance properties of air barrier.

B. Shop Drawings: Show locations and extent of air barrier. Include details for substrate joints and cracks, counterflashing strip, penetrations, inside and outside corners, terminations, and tie-ins with adjoining construction.

1. Include details of interfaces with other materials that form part of air barrier.

2. Include details of mockups.

C. Samples: Submit representative samples of the following for approval:

1. Fluid applied membrane

2. Transition tape

3. Through Wall Flashing

D. Product Certificates: For air barriers, certifying compatibility of air barrier and accessory materials with Project materials that connect to or that come in contact with the barrier; signed by product manufacturer.

E. Qualification Data: For firms and persons specified in “Quality Assurance” article to demonstrate their capabilities and experience. Include lists of completed projects with project names and addresses, names and addresses of architects and owners, and other information specified.

F. Product Test Reports: Based on evaluation of comprehensive tests performed by a qualified testing agency, for air barriers, submit certified test report showing compliance with requirements specified for ASTM E2178.

G. Warranty: Submit a sample warranty identifying the terms and conditions stated in this specification. (Deleted by Addendum No. 2)

WEATHER BARRIERS 07 2500 - 5

1.07 QUALITY ASSURANCE

A. Manufacturer: Air barrier systems shall be manufactured and marketed by a firm with a minimum of 5 years experience in the production and sales of waterproofing.

Manufacturers proposed for use, but not named in these specifications shall submit evidence of ability to meet all requirements specified, and include a list of projects of similar design and complexity completed within the past five years.

B. Applicator Qualifications: A firm experienced in applying air barrier materials similar in material, design, and extent to those indicated for this Project, whose work has resulted in applications with a record of successful in-service performance.

C. Mockups: Before beginning installation of air barrier, provide air barrier work for exterior wall assembly mockups, incorporating backup wall construction, external cladding, window, door frame and sill, insulation, and flashing to demonstrate surface preparation, crack and joint treatment, and sealing of gaps, terminations, and penetrations of air barrier membrane.

1. Coordinate construction of mockup to permit inspection by the Government of air barrier before external insulation and cladding is installed.

2. If the Government determines mockups do not comply with requirements, reconstruct mockups and apply air barrier until mockups are approved.

D. Pre-Installation Conference: A pre-installation conference shall be held prior to commencement of field operations to establish procedures to maintain optimum working conditions and to coordinate this work with related and adjacent work.

Preinstallation conference shall include the Contractor, Contracting Officer, Contracting Officer Representative(s), installer, Architect, and system manufacturer's field representative. Agenda for meeting shall include but not be limited to the following:

1. Review of submittals.

2. Review of surface preparation, minimum curing period and installation procedures.

3. Review of special details and flashings.

4. Sequence of construction, responsibilities and schedule for subsequent operations.

5. Review of mock-up requirements.

6. Review of inspection, testing, protection and repair procedures.

WEATHER BARRIERS 07 2500 - 6

1.08 DELIVERY, STORAGE, AND HANDLING

A. Deliver materials and products in labeled packages. Store and handle in strict compliance with manufacturer’s instructions, recommendations and material safety data sheets. Protect from damage from sunlight, weather, excessive temperatures and construction operations. Remove damaged material from the site and dispose of in accordance with applicable regulations.

B. Do not double-stack pallets of fluid applied membrane components on the job site.

Provide cover on top and all sides, allowing for adequate ventilation.

C. Protect fluid-applied membrane components from freezing and extreme heat.

D. Sequence deliveries to avoid delays, but minimize on-site storage.

1.09 PROJECT CONDITIONS

A. Environmental Limitations: Apply air barrier within the range of ambient and substrate temperatures recommended by air barrier manufacturer. Protect substrates from environmental conditions that affect performance of air barrier. Do not apply air barrier to a wet substrate or during snow, rain, fog, or mist.

1.10 WARRANTY (DELETED BY ADDENDUM NO. 2)

A. Material Warranty: Manufacturer's standard form in which manufacturer agrees to replace fluid-applied air barrier membrane materials, that fail within specified warranty period when installed and used in strict conformance with written manufacturer's instructions.

1. Failures include, but are not limited to, the following:

a. Failure to maintain air permeance rating not to exceed 0.02 L/s/sq. m. when tested per ASTM E2178, within specified warranty period.

b. Failure to maintain a vapor permeance rating greater than 10 perms when tested in accordance with ATM E96, Method B.

2. Warranty Period: Five years from date of Beneficial Occupancy, signed by the authorized Waterproofing Subcontractor and the authorized General Contractor.

1.11 MOCK UP

A. Provide mock up per 01 4000 Quality Requirements.

WEATHER BARRIERS 07 2500 - 7

PART 2 - PRODUCTS

2.01 FLUID-APPLIED, VAPOR PERMEABLE MEMBRANE AIR BARRIER

A. Fluid-Applied, Vapor-Permeable Membrane Air Barrier with the following minimum characteristics:

2.02 SYSTEM REQUIREMENTS (MODIFIED BY ADDENDUM NO. 2)

A. The products included in this specification section are tested and warranted as a system.

The Contractor shall provide products, components, and accessories from a single manufacturer as required to provide specified system warranties. Refer also to paragraph 1.02(C) above. The system provided must:

1. Meet published product performance criteria.

2. Provide documentation from the proposed manufacturers of independent third party listings or engineering judgements that the proposed system substitution meets the NFPA 285 (fire propagation), ASTM E2357 (air leakage), and ASTM

E331 (water penetration) requirements.

3. Provide documentation from the proposed manufacturers of independent third party testing that the proposed system substitution meets the ASTM C794

(adhesion) and AAMA 713 (compatibility) requirements.

4. Provide documentation that the proposed manufacturers meet requirements of

SPECIAL WARRANTY in this Section including all products proposed for use.

WEATHER BARRIERS 07 2500 - 8

2.03 AUXILIARY MATERIALS

A. General: Auxiliary materials recommended by air barrier manufacturer for intended use and compatible with air barrier membrane. Liquid-type auxiliary materials shall comply with VOC limits of authorities having jurisdiction.

B. Liquid Membrane for Details and Terminations: Provide Bituthene Liquid Membrane or equal as recommended by air barrier manufacturer.

C. Wall Primer (for Use with Throughwall Flashing and Tapes Applied to Substrate):

Liquid waterborne primer recommended for substrate by manufacturer of air barrier material.

1. Flash Point: No flash to boiling point

2. Solvent Type: Water

3. VOC Content: Not to exceed 10 g/l

4. Application Temperature: -4°C (25°F) and above

5. Freezing point (as packaged): -7°C (21°F)

D. Flexible Membrane Wall Flashing: 0.8 mm (32 mils) of self-adhesive rubberized asphalt integrally bonded to 0.2 mm (8 mil) of cross-laminated, high-density polyethylene film to provide a min. 1.0 mm (40 mil) thick membrane. Membrane shall be interleaved with disposable silicone-coated release paper until installed, conforming with the following:

1. Water Vapor Transmission: ASTM E96, Method B: 2.9 ng/m2sPa (0.05 perms) max.

2. Water Absorption: ASTM D570: max. 0.1% by weight

3. Puncture Resistance: ASTM E154: 356 N (80 lbs.) min.

4. Tear Resistance

a. Initiation ASTM D1004: min. 58 N (13.0 lbs.) M.D.

b. Propagation ASTM D1938: min. 40 N (9.0 lbs.) M.D.

1) Lap Adhesion at -4ºC (25ºF): ASTM D1876: 880 N/m (5.0 lbs./in.) of width

2) Low Temperature Flexibility ASTM D1970: Unaffected to -43ºC (-45ºF)

WEATHER BARRIERS 07 2500 - 9

3) Tensile Strength: ASTM D412, Die C Modified: min. 5.5 MPa (800 psi)

4) Elongation, Ultimate Failure of Rubberized Asphalt: ASTM D412, Die C:

min. 200%.

E. Joint Reinforcing Strip: Air barrier manufacturer's approved tape.

F. Transition Tape: 0.8 mm (32 mils) of self-adhesive rubberized asphalt integrally bonded to 0.2 mm (8 mil) of cross-laminated, high-density polyethylene film to provide a min. 1.0 mm (40 mil) thick membrane. Membrane shall be interleaved with disposable silicone-coated release paper until installed, conforming with the following:

1. Water Vapor Transmission: ASTM E96, Method B: 2.9 ng/m2sPa (0.05 perms) max.

2. Water Absorption: ASTM D570: max. 0.1% by weight

3. Puncture Resistance: ASTM E154: 356 N (80 lbs.) min.

4. Tear Resistance

a. Initiation ASTM D1004: min. 58 N (13.0 lbs.) M.D.

b. Propagation ASTM D1938: min. 40 N (9.0 lbs.) M.D.

5. Lap Adhesion at -4ºC (25ºF): ASTM D1876: 880 N/m (5.0 lbs./in.) of width

6. Low Temperature Flexibility ASTM D1970: Unaffected to -43ºC (-45ºF)

7. Tensile Strength: ASTM D412, Die C Modified: min. 5.5 MPa (800 psi)

8. Elongation, Ultimate Failure of Rubberized Asphalt: ASTM D412, Die C: min.

200%.

G. Substrate Patching Membrane: Manufacturer's standard trowel-grade substrate filler.

1. Product: Bituthene Liquid Membrane or equal as recommended by air barrier manufacturer.

H. Sprayed Polyurethane Foam Sealant: 1- or 2-component, foamed-in-place, polyurethane foam sealant, 1.5 to 2.0 lb/cu. ft (24 to 32 kg/cu. m) density; flame spread index of 25 or less according to ASTM E162; with primer and noncorrosive substrate cleaner recommended by foam sealant manufacturer.

WEATHER BARRIERS

07 2500 -

I. Joint Sealant: ASTM C920, single-component, neutral-curing silicone; Class 100/50

(low-modulus), Grade NS, Use NT related to exposure, and, as applicable to joint substrates indicated, Use O.

PART 3 - EXECUTION

3.01 EXAMINATION

A. Examine substrates, areas, and conditions, with Installer present, for compliance with requirements and other conditions affecting performance.

1. Verify that substrates are sound and free of oil, grease, dirt, excess mortar, or other contaminants.

2. Verify that concrete has cured and aged for minimum time period recommended by air barrier manufacturer.

3. Verify that concrete is visibly dry and free of moisture. Test for capillary moisture by plastic sheet method according to ASTM D4263.

4. Verify that masonry joints are struck flush and completely filled with mortar.

5. Proceed with installation only after unsatisfactory conditions have been corrected.

3.02 SURFACE PREPARATION

A. Refer to manufacturer’s literature for requirements for preparation of substrates.

Surfaces shall be sound and free of voids, spalled areas, loose aggregate and sharp protrusions. Remove contaminants such as grease, oil and wax from exposed surfaces.

Remove dust, dirt, loose stone and debris. Use repair materials and methods that are acceptable to manufacturer of the fluid-applied air barrier system.

B. Exterior sheathing panels: Ensure that the boards are sufficiently stabilized with corners and edges fastened with appropriate screws. Pre-treat all board joints with 50 - 75mm

(2-3 in.) wide, manufacturer's recommended self-adhesive tape. Gaps greater than 6mm

(1/4 in.) should be filled with mastic or caulk, allowing sufficient time to fully cure before application of the tape and fluid applied air barrier system.

C. Related Materials: Treat construction joints and install flashing as recommended by manufacturer.

D. Clean, prepare, treat, and seal substrate according to manufacturer's written instructions. Provide clean, dust-free, and dry substrate for air barrier application.

E. Mask off adjoining surfaces not covered by air barrier to prevent spillage and overspray affecting other construction.

F. Remove excess mortar from masonry ties, shelf angles, and other obstructions.

G. At changes in substrate plane, apply sealant or membrane equal to Bituthene Liquid

Membrane at sharp corners and edges to form a smooth transition from one plane to another.

H. Cover gaps in substrate plane and form a smooth transition from one substrate plane to another with stainless-steel sheet mechanically fastened to structural framing to provide continuous support for air barrier.

3.03 JOINT TREATMENT

A. Gypsum Sheathing: Fill joints greater than 1/4 inch (6 mm) with sealant according to

ASTM C1193 and with air barrier manufacturer's written instructions. Apply tape to joint prior to installing fluid air barrier membrane.

3.04 AIR BARRIER MEMBRANE INSTALLATION

A. Prior to screw attaching masonry anchors, as specified in Section 04 2000, to the substrate (paperless gypsum sheathing, as specified in Section 05 4000), the vapor permeable, fluid-applied membrane air barrier must be applied. The vapor permeable, fluid-applied membrane is then reapplied over the masonry anchor after the masonry anchor is screw attached to assure a waterproof condition if required by the membrane air barrier manufacturer, as a result of the warranty specified at the end of this section.

(Modified by Addendum No. 2)

B. Apply air barrier membrane to achieve a continuous air barrier according to air barrier manufacturer's written instructions.

C. Apply air barrier membrane within manufacturer's recommended application temperature ranges.

D. Apply a continuous unbroken air barrier to substrates according to the following minimum thickness. Apply membrane in full contact around protrusions such as masonry ties.

1. Vapor-Permeable Membrane Air Barrier: 90-mil (2.4-mm) wet film thickness, 45-mil (1.2-mm) dry film thickness or as recommended by the manufacturer to achieve the minimum product performances specified according to type application.

E. Do not cover air barrier until it has been tested and inspected by the Government's testing agency.

F. Correct deficiencies in or remove air barrier that does not comply with requirements;

repair substrates and reapply air barrier components.

3.05 TRANSITION STRIP INSTALLATION

A. Install strips, transition strips, and auxiliary materials according to air barrier manufacturer's written instructions to form a seal with adjacent construction and maintain a continuous air barrier.

1. Install all flashings only after application of air barrier.

B. Apply primer to substrates to receive transition tapes at required rate and allow to dry.

Limit priming to areas that will be covered by transition tape in same day. Reprime areas exposed for more than 24 hours.

1. Prime glass-fiber-surfaced gypsum sheathing not covered with air membrane material with number of prime coats needed to achieve required bond, with adequate drying time between coats.

C. Connect and seal exterior wall air barrier membrane continuously to floor-to floor construction, exterior glazing and window systems, glazed curtain-wall systems, storefront systems, exterior louvers, exterior door framing, and other construction used in exterior wall openings, using accessory materials.

D. At end of each working day, seal top edge of strips and transition strips to substrate with termination mastic.

E. Apply joint sealants forming part of air barrier assembly within manufacturer's recommended application temperature ranges. Consult manufacturer when sealant cannot be applied within these temperature ranges.

F. Wall Openings: Prime concealed perimeter frame surfaces of windows, curtain walls, storefronts, and doors. Apply transition strip so that a minimum of 3 inches (75 mm) of coverage is achieved over both substrates. Maintain 3 inches (75 mm) of full contact over firm bearing to perimeter frames with not less than 1 inch (25 mm) of full contact.

1. Transition Strip: Roll firmly to enhance adhesion.

G. Fill gaps in perimeter frame surfaces of windows, curtain walls, storefronts, and doors, and miscellaneous penetrations of air barrier membrane with foam sealant.

H. Repair punctures, voids, and deficient lapped seams in strips and transition strips. Slit and flatten fishmouths and blisters. Patch with transition strips extending 6 inches (150

mm) beyond repaired areas in strip direction.

3.06 FIELD QUALITY CONTROL (ADDED BY ADDENDUM NO. 2)

A. Following completion of the weather barrier systems, an authorized representative of the manufacturer shall visit the site and inspect the completed air barrier installation prior to concealing air barrier systems.

B. Manufacturer's representative shall furnish a letter to the Government on the manufacturer's letterhead stating that the system has been reviewed and installed in accordance with the manufacturer's installation instructions.

C. If deficiencies are noted by the Manfuacturer's representative, the deficiencies should be corrected, inspected, and accepted by the manufacturer prior issuance of the letter of acceptance.

3.07 FIELD QUALITY CONTROL (DELETED BY ADDENDUM NO. 2)

A. Testing Agency: The Contractor shall engage a qualified testing agency to perform tests and inspections and prepare test reports.

B. Inspections: Air barrier materials and installation are subject to inspection for compliance with requirements. Inspections may include the following:

1. Continuity of air barrier system has been achieved throughout the building envelope with no gaps or holes.

2. Continuous structural support of air barrier system has been provided.

3. Masonry and concrete surfaces are smooth, clean and free of cavities, protrusions, and mortar droppings.

4. Site conditions for application temperature and dryness of substrates have been maintained.

5. Maximum exposure time of materials to UV deterioration has not been exceeded.

6. Surfaces have been primed, if applicable.

7. Laps in strips and transition strips have complied with minimum requirements and have been shingled in the correct direction (or mastic has been applied on exposed edges), with no fishmouths.

8. Termination mastic has been applied on cut edges.

9. Strips and transition strips have been firmly adhered to substrate.

10. Compatible materials have been used.

11. Transitions at changes in direction and structural support at gaps have been provided.

12. Connections between assemblies (membrane and sealants) have complied with requirements for cleanliness, preparation and priming of surfaces, structural support, integrity, and continuity of seal.

13. All penetrations have been sealed.

C. Tests: Testing to be performed will be determined by the Contractor's testing agency from among the following tests:

1. Qualitative Testing: Air barrier assemblies will be tested for evidence of air leakage according to ASTM E1186, smoke pencil with pressurization or depressurization.

D. Remove and replace deficient air barrier components and retest as specified above.

3.08 CLEANING AND PROTECTION

A. Protect air barrier system from damage during application and remainder of construction period, according to manufacturer's written instructions.

B. Protect air barrier from exposure to UV light and harmful weather exposure as required by manufacturer. Remove and replace air barrier exposed for more than 150 days.

C. Clean spills, stains, and soiling from construction that would be exposed in the completed work using cleaning agents and procedures recommended by manufacturer of affected construction.

D. Remove masking materials after installation.

3.09 WARRANTY (DELETED BY ADDENDUM NO. 2)

A. The Air Barrier Contractor and General Contractor shall provide a five (5) year warranty subject to the terms and conditions as rendered in the Project Waterproofing

Warranty included at the end of this section.

END OF SECTION

This page intentionally left blank

2021-11-24T09:27:20-0600
Jacob Johnson

File details come from the government source that posted it. Updated .