Statement of Work - Redacted.pdf

PHILADELPHIA INTERNATIONAL AIRPORT ATCT

PAINT AND SEAL TOWER SHAFT

TECHNICAL SPECIFICATIONS

TS-1 DESCRIPTION

1-1 GENERAL: This contract shall include all site work required to repair, paint, and seal the entire exterior of the tower shaft and base building at the Philadelphia

International Airport Air Traffic Control Tower.

1-2 LOCATION: The Philadelphia Air Traffic Control Tower is located on the

Philadelphia International Airport in Philadelphia, Pennsylvania. A site visit is required

TS-2 REQUIREMENTS

2-1 PRECONSTRUCTION CONFERENCE. The Contractor shall attend a preconstruction conference at the time and location specified by the Contracting Officer

(CO). The work schedule, along with local procedures related to ingress-egress and security will be discussed. Compliance with these procedures while on site is mandatory.

2-2 CONTRACTING OFFICER. The term “Contracting Officer” as used herein refers to the Contracting Officer, unless he has delegated his authority to someone else. The

Contracting Officer may delegate, in writing, certain aspects of his authority to the

Resident Engineer/Contracting Officers Technical Representative.

2-3 FAA RESIDENT ENGINEER/CONTRACTING OFFICER'S TECHNICAL

REPRESENTATIVE. The RE/COTR shall receive any and all questions that may arise as to the interpretation of the specifications or plans. He will be responsible for the quality and acceptability of materials furnished, work performed, and as to the manner of performance and rate of progress of work, and the rights of the contractor and their subcontractors. The RE/COTR shall be authorized to inspect all work done and all material furnished. Such inspection may extend to all or any part of the work and to the preparation, fabrication, or manufacture of the materials to be used.

2-4 WORKING HOURS. All work hours, shifts and overtime work shall be coordinated with the FAA RE/COTR. At the pre-construction meeting, the specific work schedule will be discussed to avoid disruptions to Air Traffic Control. In addition, the contractor will notify the FAA RE/COTR a minimum of 24 hours in advance of any changes in work hours, shift changes or anticipated overtime work.

2-5 PERMITS. The contractor is responsible for obtaining those permits that are necessary to comply with all jurisdictional requirements.

2-6 CODE COMPLIANCE. The Contractor shall comply with local and other codes and standards; whichever requires the higher quality of material and workmanship. Where the requirements of the Specifications exceed those of the local or other codes, the

Contractor shall comply with the requirements of the Specifications.

2-7 PROTECTION OF FAA FACILITIES. The contractor shall take the utmost precautions to plan, organize, and carry out their work to avoid disturbance or disruption of this facility. The subcontractor shall bear all cost to repair or replace damaged facilities and to restore service when such damages have occurred due to his/her negligence or accident. The FAA Contractor Administrator reserves the right to deduct such cost from any moneys due or which may become due the contractor or his/her surety.

2-8 SECURITY REQUIREMENTS. It is the contractor’s responsibility to provide the

FAA RE/COTR with a list of the contractor’s personnel who will require access to the site. The list shall be kept current and updated as required during construction.

2-9 MATERIALS: It is the contractor's responsibility to verify all material sizes, quantities, and composition needed for this project. Government supplied dimensions are approximate.

2-9.1 Asbestos Containing Materials - The general construction contractor shall not use any asbestos containing material (ACM) at any time during the construction at the FAA facility. The general construction contractor shall verify that all material, including those supplied by third parties, are asbestos free materials. The Contractor shall provide to the

Contracting Officer (CO) a signed statement stating that to the best of his/her knowledge, no asbestos-containing building materials were used during the construction, renovation, and /or modernization of this facility.

2-10 TEMPORARY FACILITIES: The Contractor shall furnish and maintain all equipment, such as temporary hoists, chutes, derricks, scaffolds, stairs, ramps, runways, ladders, and similar items required for the proper execution of the work. All such apparatus, equipment, and construction shall conform to all safety "requirements" under this contract. All temporary work and facilities shall be removed upon completion of construction or sooner, if so directed by the Contracting Officer. The cost of all temporary light, water, power, and heat described herein shall be born by the Contractor.

2-10.1 Scaffolding on the outside of the building shall be constructed in accordance with OSHA (Occupational Safety and Health) Standards. Scaffolding shall not be built into any finish facing material. All rigging and scaffolding shall comply with state and local codes. Contractor shall provide the Contracting Officer with copies of rigging and hoisting licenses and equipment inspection tags. Rigging shall be equipped with safety lines and ropes shall have proper amount of fittings and safety features.

2-10.2 No materials, rubbish, or debris will be permitted to drop free, but shall be removed by the use of methods approved by the Contracting Officer. Hoists and chutes shall be erected as to prevent damage, staining, or marring of any permanent work.

2-11 PARKING AND STORAGE: The Contractor shall be responsible for making all necessary arrangements for temporary parking and storage. The Contractor may make arrangements, in writing, for parking and storage from other local property owners.

TS-3 SITE WORK

3-1 GENERAL: The contractor shall adhere to any restrictions placed on the conduct of work or the use of equipment, tools or vehicles identified by the Contracting Officer's representative or his appointed resident engineer. The PHL-ATCT contains sensitive electronic equipment and must be protected from possible construction damage.

3-2 SCOPE OF WORK: The contractor shall perform the following work as part of this project. The tower shaft is made up of pre-formed concrete modular sections eight feet in height. The tower is approximately 110 feet high to the cab. The base building consists of two sections, the original section attached to the tower and the newer section connected to the original.

3-2.3 Concrete Repair

1. Inspect entire tower and base building exterior for any damaged, loose, or delaminated areas of concrete.

2. Remove all failed material with a chipping hammer and clean area with compressed air or a power washer to remove all loose debris.

3. Patch all areas with Pavemend VR, Vertical Repair Mortar or equal. Patch color to match adjacent masonry finish.

3-2.4 Concrete Sealer

1. Pressure wash the entire exterior of the tower and base building.

2. Exterior shall be dry and all patches shall be cured prior to the application of paint/sealer.

3. Apply Silicone Elastomeric Coating: 2-coats, Single-component, fluid-applied, water-based, pigmented silicone elastomer from the bottom of the cab windows to the ground on the tower and the entire exterior of the base building. Color shall match existing color of tower and base building.

3-2.5 Joint Repair and Sealant

1. Inspect all joints between concrete modules on tower and base building.

2. Remove any loose or deteriorated materials and replace with compatable joint sealant products. See attached specifications.

3-2.6 Metal Landings and Platforms

1. Power wash and remove all loose paint and dirt from outside metal platforms and interior landings.

2. Repaint all platforms and landings with high quality galvanized primer and paint to match existing color.

NOTES: CONTRACTOR SHALL SUPPLY THE MSDS FORMS FOR ALL

MATERIALS BEING USED PRIOR TO START OF JOB.

EXACT MEASUREMENTS ARE THE RESPONSIBILITY OF THE

CONTRACTOR. A SITE INSPECTION IS REQUIRED PRIOR TO

SUBMISSION TO VERIFY ALL FIELD DIMENSIONS

3-3 CLEANUP AND RESTORATION Site cleanup and restoration shall include the following:

1. Removal of all contractor furnished material, tools and equipment that will not become Government property upon acceptance of site work.

2. Removal from the site and disposal of all trash, litter, packing and other similar material. Other material shall also be removed and disposed of when so directed by the onsite representative.

3. Repairing of any damage caused to any building or equipment including interior and exterior surfaces resulting from any Contractor performed activities.

4. Restoration of roadways, parking areas, crushed rock surfaces, or other portions of the site inadvertently damaged by the Contractor so as to be returned to the same condition as existed before beginning work at the site.

5. Upon completion of the site cleanup and restoration, the Contractor shall obtain a written release from the onsite representative attesting that the site has been restored to a satisfactory condition.

3-4 COMPLETION Before demobilization from the site, all work shall be reviewed by the FAA resident engineer and contractor. All defects noted, non-compliance’s with these specifications or recommendations shall be itemized in a punch list. These items must be corrected immediately by the contractor before demobilization to the satisfaction of the FAA resident engineer, and manufacturers, as applicable.

TS-4 SPECIFICATIONS

SECTION 07 01 91 – JOINT SEALANT REHABILITATION AND REPLACEMENT

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

1. Rehabilitation and replacement of exterior elastomeric weatherproofing sealants.

B. Related Sections:

1. Section 09 96 53 "Silicone Elastomeric Coatings" for water-repelling liquid silicone elastomeric coatings for exterior surfaces.

1.2 REFERENCE STANDARDS

A. ASTM International (ASTM): www.astm.org:

1. ASTM C 661 - Standard Test Method for Indentation Hardness of

Elastomeric Type Sealants by Means of a Durometer.

2. ASTM C 719 - Standard Test Method for Adhesion and Cohesion of

Elastomeric Joint Sealants under Cyclic Movement (Hockman Cycle).

3. ASTM C 794 - Standard Test Method for Adhesion-in-Peel of Elastomeric

Joint Sealants

4. ASTM C 920 - Specification for Elastomeric Joint Sealants.

5. ASTM C 1135 - Standard Test Method for Determining Tensile Adhesion

Properties of Structural Sealants.

6. ASTM C 1184 - Standard Specification for Structural Silicone Sealants.

7. ASTM C 1193 - Standard Guide for Use of Joint Sealants.

8. ASTM C 1248 - Test Method for Staining of Porous Substrate by Joint

Sealants.

9. ASTM C 1330 - Cylindrical Sealant Backing for Use with Cold Liquid

Applied Sealants.

10. ASTM D 2240 - Standard Test Method for Rubber Property - Durometer

Hardness.

11. ASTM D 412 - Standard Test Methods for Vulcanized Rubber and

Thermoplastic Elastomers - Tension.

B. Sealant, Waterproofing, and Restoration Institute (SWRI): www.swrionline.org:

1. SWRI Validation Program.

C. U. S. Environmental Protection Agency (EPA): www.epa.gov:

http://www.astm.org/ http://www.swrionline.org/ http://www.epa.gov/

1. 40 CFR 59, Subpart D: National Volatile Organic Compound Emission

Standards for Architectural Coatings.

1.3 ADMINISTRATIVE REQUIREMENTS

A. Coordination: Coordinate installation of joint sealants with cleaning of joint sealant substrates and other operations that may impact installation or finished joint sealant work.

B. Preinstallation Conference: Conduct conference at Project Site.

1.4 ACTION SUBMITTALS

A. Product Data: For each type of joint sealant product specified, including:

1. Preparation instructions and recommendations.

2. Standard drawings illustrating manufacturer's recommended sealant joint profiles and dimensions applicable to Project.

B. Joint Sealant Schedule: Indicate joint sealant location, joint sealant type, manufacturer and product name, and color, for each application. Utilize joint sealant designations included in this Section.

C. Samples for Color Selection: For each joint sealant type.

D. Samples for Verification: For each exterior joint sealant product, for each color selected.

1.5 INFORMATIONAL SUBMITTALS

A. Qualification Data: For qualified applicator.

B. Sealant, Waterproofing, and Restoration Institute (SWRI) Validation Certificate:

For each sealant specified to be validated by SWRI's Sealant Validation

Program.

C. Preconstruction compatibility and adhesion test reports.

D. Preconstruction field-adhesion test reports.

E. Field quality control adhesion test reports.

F. Warranty: Sample of unexecuted manufacturer and installer special warranties.

1.6 QUALITY ASSURANCE

A. Installer Qualifications: Experienced Installer equipped and trained for application of joint sealants required for this Project with record of successful completion of projects of similar scope.

B. Single Source Responsibility: Provide exterior joint sealants by a single manufacturer responsible for testing of Project substrates to verify compatibility and adhesion of joint sealants.

C. Preconstruction Compatibility, Staining, and Adhesion Testing: Submit [four] samples of material that will be in contact with or affect joint sealants. Test sealants with substrate materials using manufacturer's standard test method to determine requirements for joint preparation, including priming. Test sealants with related materials to verify compatibility.

D. Preconstruction Field-Adhesion Testing: Prior to installing joint sealants, field test adhesion to joint substrates using ASTM C 1193 Method A or method recommended by manufacturer. Verify adhesion is adequate. Modify joint preparation recommendations for failed joints and re-test. Submit written report to FAA COR.

E. Mockups: Provide joint sealant application within mockups required in other sections identical to specified joint sealants and installation methods.

1.7 FIELD CONDITIONS

A. Hazardous Materials: Testing has indicated that materials to be removed or rehabilitated do not contain hazardous materials.

1. If suspected hazardous materials are encountered, do not disturb materials, and immediately notify Architect and Owner.

1.8 MAINTENANCE MATERIAL SUBMITTALS

A. Furnish extra materials packaged for storage in unopened containers labeled with product name, color and texture information, and local source contact information.

1. Provide 5% extra of each type of product.

1.9 WARRANTY

A. Special Installer's Warranty: Original statement on Installer's letterhead in which

Installer agrees to repair or replace joint sealants that demonstrate deterioration or failure within warranty period specified.

1. Warranty Period: Two (2) 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 demonstrate deterioration or failure under normal use within warranty period specified.

1. Warranty Period for Silicone Sealants: Twenty (20) years date of

Substantial Completion.

C. Warranty Conditions: Special warranties exclude deterioration or failure of joint sealants in normal use due to structural movement resulting in stresses on joint sealants exceeding sealant manufacturer's written specifications, joint substrate deterioration, mechanical damage, or normal accumulation of dirt or other contaminants.

PART 2 - PRODUCTS

2.1 MANUFACTURER

A. Basis-of-Design Product: Provide joint sealant products manufactured by

Dow Corning Corp., Midland MI; (877) SEALANT, (877) 732-5268; email:

specification@dowcorning.com; website: www.dowcorning.com/construction, [or comparable products of other manufacturer approved by FAA COR].

2.2 MATERIALS, GENERAL

A. Compatibility: Provide joint sealants and accessory materials that are compatible with one another, with joint substrates, and with materials in close proximity under use conditions, as demonstrated by sealant manufacturer by testing and related experience.

B. Joint Sealant Standard: Comply with ASTM C 920 and other specified requirements for each liquid-applied joint sealant.

C. Stain Test Characteristics: Where sealants are required to be nonstaining, provide sealants tested per ASTM C 1248 as non-staining on porous joint substrates indicated for Project.

mailto:specification@dowcorning.com http://www.dowcorning.com/construction

2.3 WEATHERPROOFING LIQUID SILICONE JOINT SEALANTS

A. Single-Component, Nonsag, Neutral-Curing Silicone Joint Sealant JS#1: ASTM

C 920, Type S, Grade NS, Class 100/50, for Use T, NT, G, M, A, and O; SWRI validation.

1. Basis of Design Product: DOW CORNING 790 Silicone Building

Sealant.

2. Hardness, ASTM C 661: 15 durometer Shore A.

3. Volatile Organic Compound (VOC) Content: 43 g/L maximum.

4. Staining, ASTM C 1248: None on concrete, granite, limestone, and brick.

5. Color: As selected by FAA COR from manufacturer's full line of not less than 10 colors.

B. Single-Component, Nonsag, Neutral-Curing Silicone Joint Sealant JS#2: ASTM

C 920, Type S, Grade NS, Class 50, for Use NT, G, A, and O; SWRI validation.

1. Basis of Design Product: DOW CORNING 795 Silicone Building

Sealant.

2. Hardness, ASTM D 2240: 35 durometer Shore A, minimum.

3. Volatile Organic Compound (VOC) Content: 28 g/L maximum.

4. Staining, ASTM C 1248: None on concrete, marble, granite, limestone, and brick.

5. Color: As selected by FAA COR from manufacturer's full line of not less than 10.

2.4 PRE-FORMED JOINT SEALANTS

A. Preformed Silicone Elastomer Extrusion: Highly flexible low-modulus flashing and transition material for bonding to substrates with silicone sealant. SWRI validation.

1. Basis of Design Product: DOW CORNING 123 Silicone Seal.

2. Surface: As selected by FAA RE from manufacturer’s full line.

3. Bonding Sealant: Manufacturer's recommended neutral-curing silicone.

4. Hardness, ASTM D 2240: 25 durometer Shore A, minimum.

5. Color: As selected by FAA COR from manufacturer's full line of not less than 10.

2.5 ACCESSORIES

A. Joint Substrate Primers: Substrate primer recommended by sealant manufacturer for application.

B. Cylindrical Sealant Backing: ASTM C 1330, Type B non-absorbent, bi-cellular material with surface skin, or Type O open-cell polyurethane, as recommended by sealant manufacturer for application.

C. Bond Breaker Tape: Polymer tape compatible with joint sealant materials and recommended by sealant manufacturer.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examination of Existing Joint Sealants: Examine existing joint sealants indicated to be replaced or rehabilitated. Examine joints for compliance with requirements for joint configuration, installation tolerances, condition of joint substrate, and other conditions affecting joint-sealant performance.

B. Preinstallation Testing: Perform preinstallation adhesion tests in accordance with manufacturer’s instructions and with ASTM C 1193, Method A. Verify substrate preparation and priming result in adhesion of sealants meeting sealant manufacturer's published performance data.

1. If adhesion does not comply with published data, modify preparation and priming in accordance with sealant manufacturer's written instructions and retest.

C. Submit report indicating conditions that cannot be corrected to comply with joint sealant manufacturer's recommendations as part of the specified joint replacement or rehabilitation. Proceed with work once non-complying conditions are corrected.

3.2 PREPARATION

A. Removal of Failed Joint Sealant Materials: Cut out and remove joint materials and associated backing materials as indicated on drawings [and identified during pre-installation conference].

B. Surface Cleaning of Joint Substrates: 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 in addition to solvent cleaning 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. Remove laitance and form-release agents from concrete.

3. Clean porous and 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.

3.3 APPLICATION

A. Masking: Mask adjacent surfaces to prevent staining or damage by contact with sealant or primer.

B. Joint Priming: Prime joint substrates when recommended by sealant manufacturer or when indicated by preconstruction testing or experience. Apply recommended primer using sealant manufacturer's recommended application techniques.

C. Joint Backing: Select joint backing materials recommended by sealant manufacturer to be compatible with sealant material. Install backing material at depth required to produce profile of joint sealant allowing optimal sealant movement.

1. Install bond breaker tape over substrates when sealant backings are not used.

D. Sealant Application: Install sealants using methods recommended by sealant manufacturer, in depths between 1/4 and 1/2 inch (6.4 and 12.7 mm) unless otherwise recommended for application. Apply in continuous operation from bottom to top of joint vertically and horizontally in a single direction. Apply using adequate pressure to fill and seal joint width.

1. Tool sealants immediately with appropriately shaped tool to force sealants against joint backing and joint substrates, eliminating voids and ensuring full contact.

2. Using tooling agents approved by sealant manufacturer for application.

3.4 INSTALLATION OF PREFORMED SILICONE SEAL

A. Examine existing joints to be covered and sealed with preformed silicone seal.

Ensure seal substrate is sound, clean, dry, and free of frost, dust, dirt, grease, oil, laitance, efflorescence, mildew, and previous films and coatings that are not acceptable as a joint substrate.

B. Repair deteriorated or damaged substrates as recommended by silicone seal manufacturer. Allow patching materials to dry and cure.

C. Clean substrates to receive silicone seal.

1. Porous surfaces: Abrasive-clean followed by blasting with oil-free compressed air.

2. Nonporous surfaces: Use two-cloth solvent wipe in accordance with

ASTM C 1193.

3. High-pressure water cleaning: Exercise care that water does not enter through failed joints.

D. Masking: Apply masking tape outlining area where silicone seal will be applied.

E. Primer: Apply primer to substrates determined by manufacturer's recommended adhesion test to require primer. Apply in accordance with manufacturer's instructions.

F. Sealant: Apply bead of silicone sealant on each side of joint and 1/4 inch (6

mm) inside of applied masking tape, with minimum bonding area of 3/8 inch (9 mm), and minimum bead size as follows:

1. Rough substrate: 0.25 inch (6 mm).

2. Smooth substrate: 0.125 inch (3 mm).

G. Silicone Seal: Within 10 minutes of sealant application, press silicone extrusion into wet sealant. Apply consistent pressure with roller to ensure uniform contact.

H. Complete horizontal joints prior to vertical joints. Lap vertical seal over seal on horizontal joint.

3.4 CLEANING

A. Cleaning: Remove excess sealant using materials and methods approved by sealant manufacturer that will not damage joint substrate materials.

1. Remove masking tape immediately after tooling joint without disturbing seal.

2. Remove excess sealant from nonporous surfaces while still uncured.

3.5 FIELD QUALITY CONTROL

A. Contractor must retain testing agency to perform the following tests:

1. Verification that substrate preparation meets requirements.

2. Testing and certification that joint sealant materials comply with requirements.

3. Testing of application for compliance with adhesion requirements.

B. Field-Adhesion Testing: Perform adhesion tests in accordance with manufacturer’s instructions and with ASTM C 1193, Method A.

1. Perform [5] tests for the first [1000 feet (300 m)] of joint length for each kind of sealant and joint substrate, and one test for each [1000 feet (300 m)] of joint length thereafter or 1 test per each floor per building elevation, minimum.

2. For sealant applied between dissimilar materials, test both sides of joint.

3. For DC 123 product, reference adhesion test procedure in DC’s

Contractor’s Handbook, page 15. Available upon request.

C. Remove sealants failing adhesion test, clean substrates, reapply sealants, and re-test. Test adjacent sealants to failed sealants.

D. Submit report of field adhesion testing indicating tests, locations, dates, results, and remedial actions taken.

E. Reference DC 123 pull test requirements in (i.e., pg 15 in contractors handbook)

3.6 EXTERIOR JOINT-SEALANT SCHEDULE

A. Exterior construction joints in precast concrete panels and cast-in-place concrete.

1. Joint Sealant: Single-component neutral-curing non-staining silicone sealant. Basis of Design: DOW CORNING 790

2. Joint-Sealant Color: As selected by FAA COR from manufacturer's full range.

B. Exterior joints between different materials listed above.

1. Joint Sealant: Single-component neutral-curing non-staining silicone sealant. Basis of Design: DOW CORNING 795.

2. Joint-Sealant Color: As selected by FAA COR from manufacturer's full range.

3. Multiple colors required to match several conditions.

C. Exterior perimeter joints at frames of doors, windows, storefront frames, curtain wall frames, and louvers.

1. Joint Sealant: Single-component neutral-curing non-staining silicone sealant. Basis of Design: DOW CORNING 795.

2. Joint-Sealant Color: As selected by FAA COR from manufacturer's full range.

3. Multiple colors required to match several conditions.

D. Exterior perimeter grout joints at precast concrete modules Airport Traffic

Control Tower (ATCT) legs.

1. Joint Sealant: Single-component neutral-curing non-staining silicone sealant. Basis of Design: DOW CORNING 790

2. Joint-Sealant Color: As selected by FAA COR from manufacturer's full range.

3. Preformed Silicone Elastomer Extrusion: Highly flexible low-modulus flashing and transition material for bonding to substrates with silicone sealant. Basis of Design: DOW CORNING 123 Silicone Seal.

4. Surface: As selected by FAA RE from manufacturer’s full line.

5. Color: As selected by FAA COR from manufacturer's full line of not less than 10.

SECTION 09 96 53 – SILICONE ELASTOMERIC COATINGS

GENERAL

1.10 SUMMARY

A. Section includes substrate preparation and application of silicone elastomeric coatings to the following exterior substrates:

1. Precast Concrete Panels and Cast-in-Place Concrete.

B. Related Sections:

1. Section 07 01 91 "Joint Sealant Rehabilitation and Replacement” elastomeric joint sealants applied in conjunction with work of this section.

1.11 REFERENCE STANDARDS

A. ASTM International (ASTM): www.astm.org:

1. ASTM D 412 - Standard Test Method for Vulcanized Rubber and

Thermoplastic Rubbers and Thermoplastic Elastomers - Tension.

2. ASTM D 522 - Standard Test Methods for Mandrel Bend Test of Attached

Organic Coatings.

3. ASTM D 1653 - Standard Test Method for Water Vapor Transmission of

Organic Coatings.

4. ASTM D 1737 - Method of Test for Elongation of Attached Organic

Coatings with Cylindrical Mandrel Apparatus.

5. ASTM D 2240 - Rubber Property Durometer Hardness.

6. ASTM D 2369 - Standard Test Method for Volatile Content of Coatings.

7. ASTM D 3274 - Standard Test Method for Evaluating Degree of Surface

Disfigurement of Paint Films by Microbial (Fungal or Algal) Growth of

Soil and Dirt.

B. Federal Government Publications: www.epa.gov/nscep/

1. 40 CFR 59, Subpart D-200 - National Volatile Organic Compound

Emission Standards for Architectural Coatings.

C. Sealant, Waterproofing, and Restoration Institute (SWRI): www.swrionline.org:

1. SWRI Validation Program.

1.12 ADMINISTRATIVE REQUIREMENTS

A. Preinstallation Conference: Conduct conference at Project site.

http://www.astm.org/ http://www.epa.gov/nscep/ http://www.swrionline.org/

1.13 ACTION SUBMITTALS

A. Product Data: For specified products, including:

1. Preparation instructions and recommendations.

2. Recommended primers and accessories.

B. Samples for initial selection.

C. Samples for Verification: For each elastomeric coating indicated, for each color and texture required. Submit on step-coated sample cards with each coat labeled.

D. Product Schedule: For each product, color, and finish indicated. Provide cross reference to application areas, utilizing designations indicated on Drawings and in specifications.

1.14 INFORMATIONAL SUBMITTALS

A. Qualification Data: For qualified applicator.

B. Preconstruction compatibility and adhesion test reports.

C. Manufacturer’s instructions for installation and field quality control testing.

D. Sealant, Waterproofing, and Restoration Institute (SWRI) Validation Certificate:

For each coating specified to be validated by SWRI's Coating Validation

Program.

E. Field quality control adhesion test reports.

F. Warranty: Sample of special warranty.

1.15 MAINTENANCE MATERIAL SUBMITTALS

A. Furnish extra materials packaged for storage in unopened containers labeled with product name, color and texture information, and local source contact information.

1. Provide 2 gallons of each type of product.

1.16 QUALITY ASSURANCE

A. Applicator Qualifications: Employer of experienced applicators equipped and trained for application of elastomeric coatings required for this Project with record of successful completion of projects of similar scope.

B. Single Source Responsibility: Provide elastomeric coatings and related silicone joint sealants by a single manufacturer through a single source.

C. Mockups: Provide mockup of each coating system, color, and texture selected for approval by FAA COR. Locate as indicated or as directed. Final approval of color and texture selections will be based upon mockups. Approved mockups may remain as part of finished work.

1.17 PROJECT CONDITIONS

A. Do not install elastomeric coatings during inclement weather or when such conditions are expected. Allow wet surfaces to dry.

B. Do not install elastomeric coatings when temperature is above 100 deg F (38 deg

C) or below 40 deg F (5 deg C).

1.18 WARRANTY

A. Special Warranty, General: Manufacturer's standard project-specific form in which manufacturer agrees to repair or replace elastomeric coating that demonstrates deterioration or failure within warranty period specified due to material failure under normal use. Failure includes water penetration through coating.

1. Warranty Period: Ten (10) years from date of Substantial Completion.

PART 2 - PRODUCTS

2.1 MANUFACTURER

A. Basis-of-Design Product: Provide elastomeric coatings manufactured by Dow

Corning Corporation., Midland MI; (877) SEALANT, (877) 732-5268; email:

specification@dowcorning.com; website: www.dowcorning.com/construction, [or comparable products of other manufacturer approved by FAA COR].

mailto:specification@dowcorning.com http://www.dowcorning.com/construction

2.2 EXTERIOR FLAT WATERBORNE, PIGMENTED SILICONE

ELASTOMERIC COATINGS

A. Silicone Elastomeric Coating: 2-coats, Single-component, fluid-applied, water-based, pigmented silicone elastomer.

1. Basis of Design Product: DOW CORNING AllGuard Silicone

Elastomeric Coating.

2. Color: As selected by FAA COR from manufacturer's full line.

3. Surface Profile: As selected by FAA COR from manufacturer's full line.

4. VOC Content: 55 g/L or less.

5. Moisture-Vapor Transmission, ASTM D 1653: 43 perms, minimum.

6. Hardness, ASTM D 2240: 38 durometer Shore A.

7. Tensile Strength, ASTM D 412: 145 lbf/sq. in. (1.0 MPa), minimum.

8. Elongation, ASTM D 412: 600 percent, minimum.

9. Room Temperature Flexibility, ASTM D 522: 1/8 inch mandrel test; pass.

10. Low Temperature Flexibility, ASTM D 711: 1/4 inch mandrel test; pass.

11. Fungus Resistance, ASTM D 3274: No growth.

12. Mold Resistance, ASTM D 3273: No growth.

13. Solids Content, ASTM D 2369: Not less than 55 percent by weight.

2.3 ACCESSORY MATERIALS

A. General: VOC content of primers and fillers, 100 g/L or less.

B. Crack Fillers: Elastomeric coating manufacturer's recommended, factory-formulated crack fillers or sealants compatible with substrate and other materials.

C. Reference Specification Section 07 01 91 – JOINT SEALANT

REHABILITATION AND REPLACEMENT, for additional requirements.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine substrates to determine if work is ready to receive elastomeric coatings.

Verify that surfaces are clean, dry, and free of frost, dust, dirt, grease, oil, curing compounds, form release agents, laitance, efflorescence, mildew, excess alkalinity, and other conditions affecting performance of work.

1. Verify that new concrete and mortar to receive coating application has cured adequately in accordance with substrate and coating manufacturer's instructions.

B. Preinstallation Testing: Prior to application of elastomeric coatings, perform the following tests to verify condition of substrate in accordance with manufacturer’s instructions:

1. Adhesion: Perform substrate field adhesion tests on each substrate to determine if primer is required to satisfactorily adhere elastomeric coatings to substrates.

2. Alkalinity: Verify substrate is within alkalinity range acceptable to manufacturer.

3. Moisture Level: Verify substrate moisture content is acceptable to manufacturer.

D. Proceed with coating work once conditions meet elastomeric coating manufacturer's recommendations.

3.2 PREPARATION

A. General: Comply with elastomeric coating manufacturer's written instructions for preparation of substrates.

B. Hardware Removal: Remove hardware, accessories, plates, fixtures, and similar items that are not to be coated. If removal is not practical, provide protection for installed items prior to cleaning and preparation activities.

C. Cleaning: Clean substrates to remove contaminates and foreign material by pressure cleaning, wire brushing, grinding or other method recommended by elastomeric coatings manufacturer.

E. Substrate Repair: Repair deteriorated or damaged substrates, repair masonry joints, and fill cracks, voids, honeycomb, and other defects using materials as recommended by manufacturer. Allow patching materials to cure.

F. Protection: Protect adjacent surfaces not designated to receive coatings.

Provide protection for pedestrians, vehicles, landscaping, and surrounding areas to prevent contact with coating materials.

3.3 APPLICATION

A. Elastomeric Coating: Apply elastomeric coating using application methods and rate of application recommended by manufacturer. Apply using nap roller, nylon brush, or airless sprayer, as allowed by authorities having jurisdiction.

1. Apply elastomeric coating from top to bottom of substrate. Work down vertical surface and cover rundown in process. Avoid excessive overlapping.

2. Apply coating free of cloudiness, spotting, laps, brush marks, roller tracks, and other surface imperfections. Cut in color breaks and terminations with sharp lines.

3. Apply additional coats as required to provide cured film with uniform finish, color, and appearance.

4. Provide a minimum of two coats of not less than 20 mil total wet film thickness (10 mil wet film thickness per coat) to provide finished dry film thickness of not less than 10 mils.

B. Cleaning: Remove overspray and excess material using materials and methods approved by manufacturer that will not damage adjacent materials.

C. Curing and Protection: Allow coatings to cure before exposure to traffic. Use test specimens formed at time of coating application to verify curing time.

Prevent damage to coatings resulting from construction operations or other causes. Replace damaged coatings at time of Substantial Completion.

3.4 FIELD QUALITY CONTROL

A. Owner may retain testing agency to perform the following tests:

1. Verification that substrate preparation meets requirements.

2. Testing and certification that coating materials comply with requirements.

3. Testing of application for compliance with adhesion and film thickness requirements.

B. If testing indicates products or work do not meet requirements, Owner may stop work and require Contractor to remove non-complying materials and materials applied over non-complying substrates, and correct application.

3.5 CLEANING AND PROTECTION

A. Protect work of other trades against damage from application of elastomeric coatings.

B. Remove rubbish and discarded materials from Project site daily. Clean overspray from adjacent surfaces as work progresses, using methods recommended by manufacturer.

C. Remove temporary coverings and protection upon completion. Clean and repair adjacent surfaces damaged by water repellent application.

D. Prior to substantial completion, touch up and restore damaged or defaced coated surfaces.