SOW_Replace_Windows_Building_151.pdf

PROJECT TITLE: Replace Windows in Building 151

ADDRESS:

Building 151 Headquarters, Birmingham ANGB, 5401 East Lake Blvd, Birmingham, AL 35217

NGB PROJECT #: BRKR192602

I. GENERAL SCOPE OF WORK: The work covered by this Statement of Work consists of furnishing all labor, equipment, materials, travel, physical security, testing and permits necessary to replace 95 each windows and frames throughout the headquarters facility.

A. INTENT OF PROJECT: This work takes place in the 29,006 SF Headquarters facility, building 151, and includes the replacement of all of the windows and frames, with the exception of the windows and frames serving the mechanical room:

1. Large Wood Frame Windows: The project replaces the 64 each single hung wood and vinyl framed windows with interstitial blinds, measuring approximately 26 square foot each, with a fixed composite fiberglass and vinyl framed energy efficient window system with interior blinds. These windows are located on the southeast portion of the facility and are equally distributed between the first and second floor of the building. The new windows shall not include mullions. The existing windows are set within the masonry and brick opening with drywall interior header and jamb on the interiors. The threshold material varies from wood to plastic, to marble. The contractor is responsible for ensuring the new window system is installed in accordance with the manufacturer’s recommendations and industry standards to ensure a water/air tight installation. The caulking shall match the existing surfaces and the interior surfaces shall be repaired to match the existing. The specified blinds shall be installed on the interior of the window.

a. A large window located on the southeast corner of the building is not accessible from the interior. The window shall be replaced to match the appearance of the rest of the windows from the outside to include permanently mounting the blind in the closed position. The Contractor shall frame in and install a sheet of cement board, primed and painted flat black, to simulate a darkened room.

2. Small Wood Frame Windows: The project replaces the 30 each projected type casement windows wood and vinyl framed windows with interstitial blinds, measuring approximately 14 square foot each, with a fixed composite fiberglass and vinyl framed energy efficient window system with interior blinds. These windows are located primarily on the first floor level on the backside of the headquarters facility. The new windows shall not include mullions. The existing windows are set within the masonry and brick opening with drywall interior header and jamb on the interiors. The threshold material varies from drywall to wood to plastic. The contractor is responsible for ensuring the new window system is installed in accordance with the manufacturer’s recommendations and industry standards to ensure a water/air tight installation. The caulking shall match the existing surfaces and the interior surfaces shall be repaired to match the existing.

3. Small Steel Frame Window: The one each opening measures approximately 14 Square feet and is located on the second floor rear section of the auditorium. The window is accessible from the roof of the first floor on the exterior and within the interior vestibule. The single glazed steel framed window system shall be removed and replaced with a new window system as described in I.A.2 above. The window shall not receive a window blind.

4. Care and access:

a. Interior: During the contract the offices and spaces within the building will be occupied. Many of the offices and spaces within the headquarters contain sensitive materials and personnel. The contractor shall work with the COR and the “Building Manager” to minimize the impact and disruption to the building users. Work will be conducted during normal business hours and the building will be secure at the end of each day. The Contractor shall work with the COR and the Building Manager to schedule the work, to ensure the occupant has secured and protected their work and office equipment, and has removed any personal items necessary to provide full access to the windows from the interior. The Contractor is responsible for relocated furniture within the space and providing drop clothes and other protective means to protect the office from construction debris and dust. Upon completion of the work the contractor shall replace anything that has been moved by the Contractor. Access to the spaces to perform any follow-up finishing, blind installation, and painting will be accomplished with the same care and attention to minimizing disruption of the occupants.

b. Exterior: The building is not within the FAA controlled perimeter of the airfield and badged personnel will not require escort. Although, building 151 is in close proximity to FAA controlled and highly sensitive areas controlled by the Air National Guard. The Contractor is responsible for ensuring contractor personnel stay within the worksite. The Contractor shall avoid damaging the lawn, shrubs, and trees around building 151 during construction. Access for high lifts, scaffolding, and other equipment shall be coordinated with the COR and the Building Manager.

5. See Section V. Photos and Figures, figures 1-6 for typical photos on the windows.

B. Physical Security: As noted in A.4.b. above, access to building 151 is within the base controlled area. Contractor personnel will be badged and have ready access from the base roads to the work area. The Contractor is responsible for the security of the worksite and access to the area. Contractor personnel are only allowed access to those areas within the building in which the Contractor is actively working. The Contractor shall provide a portable toilet for Contractor personnel.

C. Working in sensitive areas: Building 151 is the headquarters for the 117th Air Refueling Wing, and as such there are numerous areas within the building that are sensitive or have restricted access. The Contractor shall take great care to coordinate activities with the COR, the Building manager, and provide the building users the appropriate courtesies.

1. The Contractor will provide appropriate and professional signage around the work area necessary to warn occupants of construction activities and hazards. Similar signage will be placed on the exterior and around equipment.

2. The Contractor must be flexible enough in his work schedule to work around sensitive areas, around critical installation activities, and critical installation personnel.

3. Cleanliness is critical in some of the work areas due to the frequency of VIPs and other visitors to the base. The Contractor shall ensure his work area is cleaned up at the end of each day and that the work area(s) will be maintained properly.

4. Some areas of building 151 will require an escort during the construction. The Contractor will ensure the work is limited to only one room where escort is required.

Appropriate planning is critical.

II. REQUIRED SERVICES:

A. SPECIFIC PROJECT SCOPE:

1. General Installation Requirements:

a. Pre-Construction: Upon award of the contract, the Contracting Officer will host a pre-construction meeting in the Civil Engineering classroom to acquaint all parties participating in this project. The successful contractor should invite any subcontractors who have a part in the work to attend. The purpose of this meeting is to ensure all parties have a complete understanding of the individuals involved and their responsibilities. All parties will have time to participate in the discussing the project’s requirements, accessibility, and other aspects of this project. At the close of this meeting we should have a tentative schedule for all parties involved in this project.

b. Period of Construction: 100 days from notice to proceed.

c. Prior to any work the Contractor shall present a detailed plan to the COR and the Building Manager describing which windows are to be replaced first so that the Building Manager has time to coordinate with the building users. The plan shall be updated and presented to the COR and Building Manager on the first workday of each week to ensure minimal disruption to the building occupants. Other occupants may attend the meeting for information only. No changes to the scope of work are permitted except as directed officially by the Contracting Officer.

d. A “Hot Work Permit” will be issued, on a daily basis, by the base fire department personnel. The contractor must call the fire department a minimum of 30 minutes in advance to obtain this permit.

e. Demolition: Upon approval of the proposed schedule and coordination with the COR and Building Manager, the contractor may start the removal of the existing windows ensuring the building is secured at the end of each day. The Contractor shall also ensure the interior of the building is protected from damages from rain and other severe weather related activity. Any materials removed will become the property of the contractor and must be removed from the site, and disposed of properly. The contractor shall provide, to the owner, an estimate of weight and description of all demolished materials removed for environmental reporting purposes. The document shall include the disposal method and location. The windows may be recycled for materials but shall not be recycled intact.

f. Patching and Painting: Patching and painting of the finishes within the facility shall match the existing materials and colors. The Contractor shall obtain and use paint matching the installation’s standards. Alterations to the window openings and or installation of the blinds shall match the existing finishes within the room.

g. Installation Quality Site Visit: Upon completion of the first set of windows, the Contractor shall conduct a site inspection with the COR and the Building Manager to obtain approval of the quality of work before moving on to the rest of the project. This approval is a one time occurrence although the COR has the right to perform a quality inspection at any time during the contract. Specific attention should be paid to the transition between the smaller window headers and the adjacent ceilings. In addition, the window on the southeast corner of the building will require additional effort to install the window from the exterior and ensure the installation is water proof.

III. SPECIFICATIONS –

SPECIFICATION SECTION: WINDOW SYSTEMS

PART 1 GENERAL

1.01 SUMMARY

A. Window System: The basis of design is the REHAU System 4500 fully welded vinyl (PVC) replacement windows as listed below. All windows shall be factory assembled, and include all required glass and glazing materials including weather seals and any internal structural metal reinforcement (stiffeners) that may be required.

1. The Contractor shall verify the size of the window openings. The project includes the replacement of a total of 95 window systems which includes 64 each 26 square foot single hung wood and vinyl framed windows; 30 each 14 square foot casement wood and vinyl framed windows; and 1 each 14 square foot casement steel framed window.

2. Configurations of windows required:

a. ATFP Compliant (UFC4-010-01 Force Protection) insulated FIXED replacement window system

3. Vinyl (PVC) supplementary profile(s) snapped into and fastened to window frame’s perimeter.

B. Window Blinds: The basis of design is the Levolor 1” Mark One Mini Blind

C. Related Sections:

1. Joint Sealants

1.02 REFERENCES

A. Publications listed below are part of this specification to the extent they are referenced.

When publications are cited in these specifications by use of shortened names or by standard number alone, it must be understood that reference is made to the full publication and edition as listed here.

B. Department of Defense Unified Facilities Criteria (UFC):

1. UFC 4-010-01 Department of Defense Minimum Antiterrorism (AT) Standards for

Buildings dated December 2018.

C. American Architectural Manufacturers Association (AAMA):

1. AAMA/WDMA/CSA 101/I.S.2/A440–05, Standard/Specification for windows, doors and unit skylights

2. AAMA/WDMA/CSA 101/I.S.2/A440–08, NAFS North American Fenestration Standard/Specification for windows, doors and skylights

3. AAMA 303 - 08, Voluntary Specification for Rigid Polyvinyl Chloride (PVC) Exterior Profiles

4. AAMA 502 -11 Voluntary Specification for Field Testing of Windows and Sliding Glass Doors

5. AAMA 800 – 10 Voluntary Specifications and Test Methods for Sealants

D. American Society for Testing and Materials

1. ASTM F 2248 – 12 Standard Practice for Specifying an Equivalent 3-Second Duration Design Loading for Blast Resistant Glazing Fabricated with Laminated Glass

E. American Society of Civil Engineers:

1. ASCE 7 – 10 Minimum Design Loads for Buildings and Other Structures, ASCE/SEI 2005

F. German Institute for Standardization (Deutsches Institut für Normung)

1. DIN EN 10327, Continuously hot-dip coated strip or sheet of low-carbon steels for cold forming, Technical delivery conditions

G. Glass Association of North America:

1. GANA Glazing Manual (2004)

H. National Fenestration Rating Council, Inc.

1. NFRC 100 – 2004, Procedure for Determining Fenestration Product U-Factors

2. NFRC 200 – 2004, Procedure for Determining Fenestration Product Solar Heat

Gain Coefficient and Visible Transmittance at Normal Incidence

3. NFRC 500 – 2004, Procedure for Determining Fenestration Product

Condensation Resistance Values

4. NFRC 102 – 2004 Procedure for Measuring the Steady-State Thermal

Transmittance of Fenestration Systems

1.03 SYSTEM DESCRIPTION

A. Structural Design Requirements:

1. Design Loads:

a. Windows shall be identical in construction to test windows that comply with all requirements of: AAMA 101 Performance Class CW PG 65 FW 72” x 72”

2. Comply with all applicable Building Codes.

B. Other Performance Requirements:

1. Allow for thermal movement of the window based on site mean temperature +/- 70 °F, window/element size and coefficient of linear expansion of PVC.

2. If non-white windows are chosen allow for thermal movement of the window based on the solar-heat absorption.

3. Thermal Performance:

a. Comply with all applicable energy codes and ENERGY STAR®

b. When tested in compliance with NFRC 100-2004, windows, including glass and vinyl framing, shall have a thermal transmittance (U-value) of:

i. U-0.28 Btu/hr*ft2*°F

c. When tested in compliance with NFRC 200-2004, windows, including glass and vinyl framing, shall have a Solar heat gain coefficient (SHGC) of:

i. SHGC-0.22

d. The System 4500 window, when tested in compliance with NFRC 500-

2004, shall have a Condensation Resistance Factor (CRF) of minimum CR-

1.04 SUBMITTALS

A. Product Data:

1. Manufacturer’s printed literature describing specified products shall be submitted for approval by the COR and Contracting Officer.

2. Printed literature describing quality of vinyl extrusions.

3. Printed literature describing quality of the window system.

4. Provide manufacturer data fully describing the blind system.

B. Shop Drawings:

1. Submit dimensioned shop drawings for system. Show materials, anchorage, field connections, sealants and glazing.

2. Drawings shall show scale elevations and sections. Full size sections shall be shown only when needed for clarity.

C. Samples:

1. Selection Samples:

a. Submit color samples displaying manufacturer's standard colors and finishes for initial selection by COR. Submit actual material samples of colors and finishes available.

b. Sample Size: Not less than 6” length of vinyl profile

2. Samples submitted shall be of production type and shall represent quality of finish to be furnished by manufacturer. No work represented by samples shall be fabricated until samples are accepted.

3. Samples of the blinds are not required.

D. Quality Assurance Submittals:

1. Test Reports:

a. Submit certified test reports from an AAMA accredited, independent testing laboratory showing system has been tested and meets or exceeds specified requirements and indicating full compliance with specified performance criteria.

1.05 QUALITY ASSURANCE

A. Qualifications:

1. This portion of Work shall be provided by a single firm, who has specialized in the fabrication of fully welded vinyl windows.

2. The window fabricator shall be fully trained authorized by the window manufacturer technical representative in the approved techniques and methods of fabricating the vinyl windows. Training or auditing shall have occurred within two years of the commencement of this project.

D. Materials:

1. Shall be equal to the REHAU Quality vinyl extrusions and REHAU approved components.

2. The Blinds shall be equal to the quality of the Levolor mini blinds. Substitutions shall be considered if the contractor provides a detailed one for one comparison of the attributes of the two products for approval.

1.06 DELIVERY, STORAGE, AND HANDLING

A. Packing, Shipping, Handling, and Unloading:

1. A temporary covering shall protect exposed surfaces after completing fabrication of products.

2. Deliver materials in manufacturer’s original packaging with labels intact.

B. Storage and Protection:

1. Store windows/elements vertically, inside, in a clean and dry location.

2. Stacking shall be done in a way to prevent bending.

3. Cover stacks in a manner to provide air circulation and to reasonably protect materials from damage.

4. Keep on-site handling to a minimum. Exercise particular care to avoid damage to finishes. Damaged or deteriorated materials shall be removed from the site.

1.07 PROJECT CONDITIONS

A. Environmental Requirements:

1. Do not proceed with jobsite sealant application when ambient and substrate temperature conditions are not within limits permitted by sealant manufacturer.

2. Sealants shall not be applied when joint substrates are wet due to rain, frost, condensation or other causes.

B. Field Measurements:

1. Verify dimensions of surrounding construction by field measurements so work will be accurately fabricated, and fitted to structure. Contractor and manufacturer shall cooperate to establish and maintain these field dimensions.

1.08 SPECIAL WARRANTY

A. Provide a written warranty signed by both the window fabricator and the installer agreeing to repair or replace defective materials or workmanship, including evidence of early deterioration, weathering or aging of Work, uncontrolled water penetration or air infiltration, glass breakage due to design defects, deterioration of finishes and other deterioration or failure of Work to comply with performance or other requirements.

Warranty shall be for a period of 5 years from Date of Substantial Completion.

B. Window Blinds shall be supported with the standard construction one year warranty.

PART 2 PRODUCTS

2.01 ACCEPTABLE MANUFACTURERS

A. The basis of design is the REHAU 4500 Vinyl Window system. The Contractor may submit equivalent manufactured systems that meet or exceed the basis of design. The Contractor is responsible for proving the submitted window system is equal to or exceeds the basis of design by presenting for approval a one for one comparison of the attributes of the two window systems. Applicable certification of compliance with UFC 4-010-01 requirements is also required to obtain approval of an equivalent product.

B. Window Basis of design - Vinyl (PVC) Windows :

1. REHAU Windows as provided by: Alpen High Performance Products (Alpen

HPP)

6268 Monarch Park Pl. Niwot, CO 80504

C. Blind Basis of design – Vinyl (PVC) Blinds:

1. Levolor 1’ Mark One Mini Blind, - Color: White 110

2.02 MATERIALS

A. Window System: REHAU System 4500 Vinyl Windows.

1. Windows on this project shall be furnished and installed in the sizes, configurations and quantities as described in the Project Contract Documents and within the allowed parameters in PART 1, Section 1 of this specification.

2. All extruded vinyl shall be made from RAU PVC

3. Minimum Outside Nominal Wall Thickness:

a. Primary frame extrusions exterior walls: 0.106” (2.7 mm)

b. Secondary extrusions (e.g. glazing stops and closures): 0.067” (1.8 mm)

4. Face Dimensions (nominal): Shall be compatible with the existing architectural features.

5. Window frames shall be the REHAU “North American” frame without nailing fin.

6. There shall be multiple chambers in the frame providing structural strength, thermal insulation and separation of drainage passages from any metal reinforcing profiles.

6. Window frame shall be configured to receive glazing beads (stops) that snap in on the interior side of the glass.

7. Glazing beads (stops) shall incorporate coextruded black RAU-PREN glazing seals.

8. For laminated glass, glazing beads (stops) shall ensure minimum ½” edge bite in compliance with ASTM F 2248

B. Reinforcement:

1. If required (see current REHAU System 4500 technical information), custom shaped steel reinforcements for the internal applications in windows must be used.

2. Galvanized steel specified according to EN 10327, Grade DX 51D+Z275-N-A-C

3. Galvanized Steel shall be in size , configuration and location within the window as indicated in the test reports and REHAU System 4500, Reinforcement Instructions

4. Reinforcement must be used in all main profiles (such as frame or t-mullion), which are non-white

5. Reinforcement must be used between windows, which are joined with each other and must be sufficiently sized and anchored according to the structural requirements.

6. Provide any additional necessary reinforcement and fasteners for the mini blinds.

C. Weather seals:

1. Black polymer (EPDM) replaceable weather seals:

a. Shapes, designs, and thickness as needed to satisfy performance requirements.

b. Weather seals shall be provided in continuous lengths, butted firm to ends of races and to each other when in the same planes.

D. Glass:

1. Glass shall comply with requirements of AAMA/WDMA/CSA 101/I.S.2/A440-05, Section 6.2 and the GANA Glazing Manual.

2. Glass shall comply with requirements of UFC 4-010-01 Department of Defense Minimum Antiterrorism (AT) Standards for Buildings.

3. Insulating glass units shall have an overall nominal thickness of 1”

4. Insulating glass units shall be comprised of:

a. Exterior Lite: 3/16” (5mm) nominal clear glass with low-e coating Cardinal 366 on surface #2

b. Interior Lite: ¼” (6mm) nominal laminated glass consisting of two 1/8” (3mm) glass panes bonded together with a minimum of a 0.030 in. (0.75

mm) interlayer of a material designed for blast resistance

c. Inert Gas Fill: 95% Argon

2.03 ACCESSORIES

A. Fasteners: Stainless Steel: AISI 300 Series

1. Fasteners shall be selected to prevent galvanic reaction with any reinforcement materials fastened.

2. Above criteria is applicable to screws used to secure internal reinforcement and to fasteners used in window mulling connections, if required.

3. Avoid exposed fasteners to greatest extent possible.

4. Where exposed fasteners are unavoidable in finished surfaces, use flathead countersunk Phillips head screws.

5. Installation anchors must be approved by the responsible engineer/architect for the project

B. Blinds shall be fastened to the jambs, headers, and other surfaces with the appropriate fasteners for the surface in which the blinds are being fastened to.

C. Sealants:

1. Sealants shall comply with requirements of AAMA 800

2.04 FABRICATION

A. General Requirements:

1. Follow all requirements of the manufacturer’s fabrication guidelines

2. Miter cut and fusion weld (i.e. thermally weld) all frame corners.

3. Complete fabrication, assembly, finishing and other work for each individual window unit before shipment to Site. Field assembly to connect two or more mulled windows is permitted.

4. Provide baffled drainage holes to drain moisture to exterior.

B. Welding:

1. Welding shall be done in compliance with applicable recommendations and shall be done with materials and equipment as recommended by the window manufacturer.

2. Welds shall be finished and dressed.

C. System:

1. Window construction, edge clearance and placement of installation fasteners shall allow for expansion and contraction per the specified system performance requirements.

2. Provisions shall be made in framing for minimum glass edge clearance, nominal edge cover, and nominal pocket width, in compliance with GANA Glazing Manual, for thickness and type glass specified.

3. Framing shall be provided with reinforcing members as necessary. Provide steel members as needed to reinforce frame and/or T-mullion components as recommended by the window manufacturer to develop needed strength of assembly.

2.05 SHOP FINISHES

A. Laminated Coatings:

1. Windows shall be provided with color foil applied to exterior and interior frame surfaces

2. Foil type shall be: RENOLIT FX or approved equivalent.

3. Foil color shall be: Bronze NA Smooth or Midnight Blackbrown 8518 Smooth The contractor shall submit color samples for final approval by the COR.

4. Application of laminated color foils from RENOLIT shall be performed under specification issued by RENOLIT and REHAU.

5. The laminated surface shall be uniform and free from streaks, blisters, sags, or other surface imperfections.

6. Laminated profiles must meet requirements of AAMA 303.

B. Protection:

1. Provide film to protect exposed finished surfaces during shipment, storage, and installation whenever possible.

2. Film shall not affect factory finish after finished component is installed and film is stripped, no residue, adhesive, or film covering, visual non-uniformity or other deleterious effects or substances shall remain on surfaces.

3. Factory applied protective film must be removed immediately after installation.

4. When cleaning agents/paint etc. are applied to the building the windows must be protected.

PART 3 EXECUTION

3.01 EXAMINATION

A. Site Verification of Conditions:

1. Examine window openings and adjacent building structure where windows will be applied for conditions that will prevent proper execution of this portion of Work and endanger permanency.

2. Do not proceed with installation until defects have been corrected.

3. Verify sealant compatibility and adhesion to vinyl in conjunction with sealant manufacturer.

3.02 PREPARATION

A. Coordination:

1. Coordinate installation with work of other trades.

3.03 INSTALLATION

A. General Requirements:

1. Comply with UFC 4-010-01 Department of Defense Minimum Antiterrorism (AT)

Standards for Buildings and manufacturer’s instructions for installation.

2. Do not erect warped, bowed, deformed or otherwise damaged or defaced members. Replace materials that are damaged during installation as directed.

3. Set units level, plumb, and true to line, with uniform joints. Support units on shims and secure in place by approved installation anchors/fasteners that properly engage into to supporting structure.

4. Insulation must be used around the perimeter of the window in accordance with shop drawings and the insulation manufacturer’s guidelines. Insulation must allow for expansion and contraction of the installed window.

5. Flashing and other materials used around window opening shall be corrosion resistant, non-staining, non-bleeding, and compatible with adjoining materials.

6. Blinds shall be fastened true to line with appropriate clearances from the jambs the entire height of the window system. Cords shall be securely fastened in place as recommended by the manufacturer.

B. Erection Tolerances:

1. Variations from Plumb: ±1/8” maximum in window height.

2. Variations from Level: ± 1/8” maximum in 10’ run, non-cumulative.

3.04 FIELD QUALITY CONTROL

A. Field Check for Water Leakage:

1. After completion of installation and nominal curing of sealant and glazing compounds, but before installation of interior finishes, perform AAMA 502 test.

Architect will determine the quantity and type(s) of window(s) to be tested.

2. In case of water penetration take corrective action and re-test as necessary until the problem is resolved.

3.05 ADJUSTING

A. Weatherseal contact shall be checked for proper performance of units.

3.06 CLEANING

A. Clean completed system in compliance with manufacturer’s recommendations, inside and out, promptly after erection and installation of glass and sealants. Remove excess glazing and joint sealants, dirt, and other substances from finished surfaces promptly after erection.

B. Remove protective material from prefinished surfaces.

C. Wash down exposed surfaces using a solution of mild detergent in warm water applied with soft, clean wiping cloths. Take care to remove dirt from corners. Wipe surfaces clean.

3.07 PROTECTION

A. Institute protective measures and other precautions needed to assure Work will be without damage or deterioration, other than normal weathering, at time of acceptance.

END OF SECTION – WINDOW SYSTEMS

SPECIFICATION SECTION: SEALANTS

PART 1 GENERAL

1.01 SUMMARY

A. Section Includes:

1. Silicone joint sealants.

1.02 SUBMITTAL

A. Product Data: For each joint-sealant product indicated.

B. Samples for Verification: For each kind and color of joint sealant required, provide Samples with joint sealants in 1/2-inch- wide joints formed between two 6-inch- long strips of material matching the appearance of exposed surfaces adjacent to joint sealants.

C. Joint-Sealant Schedule: Include the following information:

1. Joint-sealant manufacturer and product name.

2. Joint-sealant formulation.

3. Joint-sealant colors.

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D. Product Certificates: For each kind of joint sealant and accessory, from manufacturer.

E. Preconstruction Compatibility and Adhesion Test Reports: From sealant manufacturer, indicating the following:

F. Warranties: Sample of special warranties.

1.03 QUALITY ASSURANCE

A. Source Limitations: Obtain each kind of joint sealant from single source from single manufacturer.

B. Provide joint sealants that establish and maintain watertight and airtight continuous joint seals without staining or deteriorating joint substrates.

1.04 DELIVERY, STORAGE, AND HANDLING

A. Deliver materials to Project site in original unopened containers or bundles with labels indicating manufacturer, product name and designation, color, expiration date, pot life, curing time, and mixing instructions for multicomponent materials. Verify material is within its shelf life duration prior to usage.

B. Store and handle materials in compliance with manufacturer's written instructions to prevent their deterioration or damage due to moisture, high or low temperatures, contaminants, or other causes.

1.05 PROJECT CONDITIONS

A. Do not proceed with installation of joint sealants under the following conditions:

1. When ambient and substrate temperature conditions are outside limits permitted by jointsealant manufacturer or are below 40 deg F.

2. When joint substrates are wet.

3. Where joint widths are less than those allowed by joint-sealant manufacturer for applications indicated.

4. Where contaminants capable of interfering with adhesion have not yet been removed from joint substrates.

B. Joint-Width Conditions: Do not proceed with installation of joint sealants where joint widths are less than those allowed by joint sealant manufacturer for applications indicated.

C. Joint-Substrate Conditions: Do not proceed with installation of joint sealants until contaminants capable of interfering with adhesion are removed from joint substrates.

Comply with manufacturer’s surface preparation techniques prior to application.

1.06 WARRANTY

A. Special Installer's Warranty: Manufacturer's standard form in which Installer agrees to repair or replace joint sealants that do not comply with performance and other requirements specified in this Section within specified warranty period.

1. Warranty Period: Two years from date of Substantial Completion.

B. Special Manufacturer's Warranty: Manufacturer's standard form in which joint-sealant manufacturer agrees to furnish joint sealants to repair or replace those that do not comply

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PART 2 PRODUCTS

2.01 MANUFACTURERS

A. Manufacturers

1. Dow Corning

2. Pecora Corporation

3. Sika Corporation

4. Sonneborne

5. Tremco

2.02 MATERIALS, GENERAL

A. Compatibility: Provide joint sealants, backings, and other related materials that are compatible with one another and with joint substrates under conditions of service and application, as demonstrated by joint-sealant manufacturer, based on testing and field experience.

B. VOC Content of Interior Sealants: Sealants and sealant primers used inside the weatherproofing system shall comply with the following limits for VOC content when calculated according to 40 CFR 59, Subpart D (EPA Method 24):

1. Architectural Sealants: 250 g/L.

2. Sealant Primers for Nonporous Substrates: 250 g/L.

3. Sealant Primers for Porous Substrates: 775 g/L.

C. Colors of Exposed Joint Sealants: As selected from manufacturer's full range.

2.03 JOINT SEALANTS

A. Elastomeric Sealants: Comply with ASTM C 920. Use applicable sealants for Window

Replacement and interior and exterior surfaces and matching adjacent surfaces damaged during construction.

1. Medium Modulus Single-component, neutral-curing silicone sealant, Type S; Grade

NS; Class 25; Uses T, M, and O, with the additional capability to withstand 50 percent movement in both extension and compression for a total of 100 percent movement.

Use for building expansion joints.

2. Low Modulus Single-component, neutral-curing silicone sealant, Type S; Grade NS;

Class 25; Uses T, M, and O, with the additional capability to withstand 100 percent movement in extension and 50 percent movement in compression for a total of 150 percent movement. Use for building expansion joints.

3. Single-component, neutral-curing silicone sealant, Type S; Grade NS; Class 25; Uses T, NT, M, G, A, and O. For general exterior use on vertical surfaces.

4. Single-component, mildew-resistant silicone sealant, Type S; Grade NS; Class 25;

Uses NT, G, A, and O; formulated with fungicide. Use for interior sealant joints in ceramic tile, stone, and other hard surfaces in kitchens and toilet rooms and around plumbing fixtures.

5. Medium-modulus, neutral curing silicone sealant, Type S; Grade NS; Class 25; Uses NT, G, A, and O. Use O joint substrates: coated glass, color anodic aluminum, aluminum coated with a high performance coating, galvanized steel, ceramic tile, and

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6. Solvent-Release Sealants: Butyl-Rubber-Based Solvent-Release Joint Sealant: ASTM C 1085. For use under all sill plates, metal flashing, gutter, roof, and other general applications.

7. Latex Sealant: Single-component, nonsag, mildew-resistant, paintable, acrylic-emulsion sealant complying with ASTM C 834. For interior use only at perimeters of door and window frames.

2.04 MISCELLANEOUS MATERIALS

A. Cleaners for Nonporous Surfaces: Chemical cleaners acceptable to manufacturers of sealants and sealant backing materials, free of oily residues or other substances capable of staining or harming joint substrates and adjacent nonporous surfaces in any way, and formulated to promote optimum adhesion of sealants to joint substrates.

B. Masking Tape: Non-staining, nonabsorbent material compatible with joint sealants and surfaces adjacent to joints.

PART 3 - EXECUTION

3.01 EXAMINATION

A. Examine joints to receive joint sealants for compliance with requirements for joint configuration, installation tolerances, and other conditions affecting jointsealant performance.

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

3.02 PREPARATION

A. Surface Cleaning of Joints: Clean out joints immediately before installing joint sealants to comply with joint-sealant manufacturer's written instructions and the following requirements:

1. Remove all foreign material from joint substrates that could interfere with adhesion of joint sealant, including dust, paints (except for permanent, protective coatings tested and approved for sealant adhesion and compatibility by sealant manufacturer), old joint sealants, oil, grease, waterproofing, water repellents, water, surface dirt, and frost.

2. Clean porous joint substrate surfaces by brushing, grinding, mechanical abrading, or a combination of these methods to produce a clean, sound substrate capable of developing optimum bond with joint sealants. Remove loose particles remaining after cleaning operations above by vacuuming or blowing out joints with oil-free compressed air. Porous joint substrates include the following:

a. Concrete.

b. Masonry.

c. Unglazed surfaces of ceramic tile.

3. Remove laitance and form-release agents from concrete.

4. Clean nonporous joint substrate surfaces with chemical cleaners or other means that do not stain, harm substrates, or leave residues capable of interfering with adhesion of joint sealants. Nonporous joint substrates include the following:

a. Metal.

b. Glass.

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c. Glazed surfaces of ceramic tile.

B. Joint Priming: Prime joint substrates where recommended by joint-sealant manufacturer or as indicated by preconstruction joint-sealant-substrate tests or prior experience. Apply primer to comply with joint-sealant manufacturer's written instructions. Confine primers to areas of jointsealant bond; do not allow spillage or migration onto adjoining surfaces.

C. Masking Tape: Use masking tape where required to prevent contact of sealant or primer with adjoining surfaces that otherwise would be permanently stained or damaged by such contact or by cleaning methods required to remove sealant smears. Remove tape immediately after tooling without disturbing joint seal.

3.03 INSTALLATION OF JOINT SEALANTS

A. General: Comply with joint-sealant manufacturer's written installation instructions for products and applications indicated, unless more stringent requirements apply.

B. Sealant Installation Standard: Comply with recommendations in ASTM C 1193 for use of joint sealants as applicable to materials, applications, and conditions indicated.

C. Install sealants using proven techniques that comply with the following and at the same time backings are installed:

1. Place sealants so they directly contact and fully wet joint substrates.

2. Completely fill recesses in each joint configuration.

3. Produce uniform, cross-sectional shapes and depths relative to joint widths that allow optimum sealant movement capability.

3.04 CLEANING

A. Clean off excess sealant or sealant smears adjacent to joints as the Work progresses by methods and with cleaning materials approved in writing by manufacturers of joint sealants and of products in which joints occur.

3.05 PROTECTION

A. Protect joint sealants during and after curing period from contact with contaminating substances and from damage resulting from construction operations or other causes so sealants are without deterioration or damage at time of Substantial Completion. If, despite such protection, damage or deterioration occurs, cut out and remove damaged or deteriorated joint sealants immediately so installations with repaired areas are indistinguishable from original work.

END OF SECTION - SEALANTS

IV. CONTACT INFORMATION:

A. Contracting Officer, MSgt. William K. Hall (205)714-2248; William.k.hall14.mil@mail.mil.

B. Base Civil Engineer, LtCol. Scott Vandenberghe; (205)714-2300;

scott.m.vandenberghe.mil@mail.mil

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C. Deputy BCE, TSgt. Matthew R. Chandler; (205)714-2221; matthew.r.chandler15.mil@mail.mil

D. Civil Engineering work control, (205)714-2247

E. Security, (205)714-2240

F. Base Fire Department, (for burn permit) (205)714-2828

V. Photos and Figures:

A. Figure 1: Exterior Building 151 South Side

B. Figure 2: Exterior Building 151 North Side

C. Figure 3: Exterior Large and Small Windows (Typ)

D. Figures 4: Typical Large Window Interior Finishes

E. Figures 5: Typical Small Casement Windows Interiors

F. Figure 6: Individual Steel Window

Figure 1: Exterior Building 151 South Side

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Figure 2: Exterior Building 151 North Side

Figure 3: Exterior Large and Small Windows (Typ)

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Figures 4: Typical Large Window Interior Finishes

Figures 5: Typical Small Casement Windows Interiors

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Figure 6: Individual Steel Window