SOW for the Knox (OXI) VORTAC Asbestos Removal Lead based Paint Encapsulation Project.pdf

Statement of Work FAA-C90-421

Asbestos Removal and Lead-Based Paint Encapsulation Project

Knox VORTAC

2500 E. SR 8

Knox, IN 46534

Central Service Area

Prepared By:

Federal Aviation Administration Chicago Technical Support Center

AJW-C22D

Elgin, Illinois

Updated January 30, 2023

Table of Contents

Section Section Title Dated

I

Table of Contents

30 JANUARY, 2023

II‐III

Knox VORTAC Vicinity & Location Maps

Specification Section Title Date

00 11 10

General Requirements

02 83 00

Lead Based Paint Encapsulation

09 67 23

Electro‐Static Discharge Resinous Floor System

Appendix I

Schedule of Submittals

Appendix II

Supplemental Statement of Work

For Asbestos Vinyl Floor Tile (VFT) Remediation For The Federal Aviation Administration

Project Drawings Title Date Project Drawing

C90‐421‐A001

Construction Plan Interior and Exterior Renovation Project

03 December, 2021

Reference Drawing

GL‐D‐ 6563A

36’x36’ Building Floor Plan and Equipment Layout Plan

10 October, 2005

I

FAA‐C90‐421

II

Vicinity Map – Knox VORTAC

III

Vicinity Map – Knox VORTAC

SECTION 00 11 10 – GENERAL REQUIREMENTS

1.01 SUMMARY OF WORK.

The Contractor shall furnish all materials, labor, supervision, equipment, permits, insurance, etc. to refurbish the interior and exterior lead‐based paint wall and ceiling finishes and abate the asbestos containing floor tile and mastic at the Knox VORTAC, located in Knox, Indiana. This work includes the following principle items:

Interior Work

A. Perform Toxicity Characteristic Leaching Procedure (TCLP) testing on interior and exterior paint chips to see if they qualify as hazardous waste (5.0 mg/l or greater lead content).

B. Perform a Pre‐Renovation Hazardous Materials Survey.

C. Removal and disposal of approximately 1,200 square feet of asbestos containing floor tile and mastic located in the equipment room and closet in accordance with the requirements stated in Appendix II of this statement of work.

D. Encapsulation using brush or roller only of approximately 2,000 square feet of lead‐ based paint wall finishes located in the equipment room, closet, and engine generator room. This work includes removal of approximately 700 square feet of flaking lead‐ based paint in the equipment room and engine generator room prior to encapsulation.

E. Installation of an approximately 1,200 square feet of an Electro‐Static Dissipative (ESD) epoxy floor with non‐skid surface in the equipment room and closet as described in this statement of work. This work includes all related ground connections required to the existing multi‐point ground plate for a complete installation.

F. Moving of all furniture and equipment as directed by the COR to the engine generator room or outdoors in order to accomplish the above work.

G. Protection of permanently installed equipment as stated in this statement of work.

Exterior Work

H. Removal and disposal of approximately 1,000 square feet of lead‐based paint from the roof overhang as described in the statement of work. Paint surface with exterior wood/steel primer and install a vinyl soffit and painted steel flashing on overhang and support steel per section 00.

00 – ROOF OVERHANG PAINTING AND VINYL SOFFIT INSTALLATION

00.1 Vinyl Soffit Installation: Install galvanized steel joist hangers into the building structure as shown below in the example photos. Seat 2x6 treated joists across new hangers and secure into hanger with 2 CCA rated exterior screws per hanger. Use laser or string to install all new supports at same level. Vinyl soffit shall be a commercially available product as available from major hardware/box stores and marketed for such use. Use vented soffit panels in pattern as shown in the sample photo below and follow soffit manufacturer instructions for maximum distance spacing of new wood supports. Install soffit edge treatment tracks for termination of soffit panels against intersecting surfaces per manufacturer instructions.

00.2 Steel Coil stock Installation – provide steel coil stock with factory applied Kynar finish. Cut sections in maximum lengths possible and use a sheet metal brake to fabricate z‐shaped pieces to cover the exterior face of the steel support channels per sample photo below. Fabricate flat pieces of coil stock as well and install over the upper horizontal leg of the z‐shape and across and under the existing roofing edge flashing so as to now completely cover the exposed metal and wood surfaces of the underside of the roof. See detail below for additional info.

SAMPLE VINYL SOFFIT INSTALLATION

SAMPLE SOFFIT AND COIL STOCK FASCIA INSTALLATION

OXI SITE PHOTO OF OVERHANG

SAMPLE COIL STOCK METAL OVER STEEL FASCIA AND OVERHANG

(SEE DETAIL BELOW)

END OF SECTION 00

1.02 GENERAL REQUIREMENTS.

A. The Contractor shall verify all existing conditions and verify measurements for obtaining quantities of materials placed. No subsequent extras will be allowed due to any claim of lack of knowledge for conditions, which can be determined by examining the site.

1.03 REGULATORY REQUIREMENTS.

A. All work shall be accomplished in accordance with all local, state, and federal codes including but not limited to the International Building Code (IBC), Occupational Safety and Health Association (OSHA), Environmental Protection Association (EPA), The National Environmental Policy Act (NEPA), and Life‐Safety codes. OSHA reserves the right to inspect the Contractor's work area without advance notice.

B. When the Contractor observes that contract documents are at variance with IBC, OSHA, the National Electrical Code, or Federal, State, or local rules and regulations, notify the COR for resolution.

1.04 QUALITY ASSURANCE.

A. Installer Qualifications. Engage an experienced installers for each trade and referenced in other sections of this Statement of Work. Reference the specifications sections in this Statement of Work for specific qualification requirements.

1.05 SUBMITTALS.

A. Reference Appendix I for submittal requirements.

B. Submit all submittals to the Contracting Officer via e‐mail.

1.06 WORK SCHEDULE/PHASING.

A. General Construction Hours. Work shall take place during normal business hours, 0700 to 1600, Monday through Friday, weekends and national holidays excluded.

B. Special Construction Hours. This facility will be scheduled out of service for four (4) business days beginning Monday, 0700 LCL through Thursday 1400 LCL,, in order to accomplish the interior work stated above. Work shifts shall be extended as necessary to accomplish the asbestos removal and lead‐based paint encapsulation in the equipment room and engine generator room and obtain final air monitoring clearance in this time‐ frame.

1.07 GOVERNMENT‐FURNISHED MATERIAL. (RESERVED).

1.08 SECURITY REQUIREMENTS.

A. Contractor Personnel: The Contractor shall provide the Government with a list of the contractor's personnel as required by the Contracting Officer or site personnel.

1.09 DISPOSAL/CLEANING REQUIREMENTS.

A. The Contractor shall dispose of all debris on a daily basis and shall provide containers with covers for storage of debris at the site as required.

1.10 DEMOLITION.

A. All demolition work shall be accomplished as described in the specification sections in this statement of work.

B. Materials shall be removed in such a manner to not affect or damage any existing equipment or structure.

C. All waste material shall be hauled and be placed in a dumpster provided by the Contractor.

1.11 PROTECTION OF EQUIPMENT AND STRUCTURES.

A. Prior to work beginning, the Contractor shall protect all permanently floor and wall mounted power panels, junction boxes, plant equipment, electronic equipment, fire detectors, etc. in the equipment and engine generator room with 6 mil fire retardant polyethylene sheeting as directed by the COR.

B. The Contractor shall remove and dispose of all protective sheeting at the end of this project.

1.12 FIRE EXTINGUISHING EQUIPMENT.

A. The contractor shall have an equivalent of 2‐25 lb. class A and B fire extinguishers in the work area through the progress of the job. CO2 type fire extinguishers are acceptable.

1.13 IDENTIFICATION OF UTILITIES.

A. The Contractor shall be responsible for contacting the local underground utility locating service or third party locating service to schedule joint meet and/or site locate for this project.

B. FAA utilities: All work associated with the location and identification of buried communications, electrical, mechanical, or plumbing systems owned by the FAA, shall be performed by FAA personnel.

C. Utility Disruption: In the event that properly identified utility or communication services either overhead or buried, are damaged as a result of the Contractor’s activity, such services shall be immediately repaired and the COR and the Contracting Officer immediately notified.

1.14 SITE SURVEYS.

A. Contact Mr. Ryan Dernay, FAA South Bend SSC Coordinator, at 574‐235‐1103 to schedule a site survey.

B. Submit all site survey questions via e‐mail to the Contracting Officer.

1.15 GOVERNING DOCUMENTS.

A. For discrepancies between building codes referenced in the Statement of Work and Local Building codes, the local building codes shall govern.

1.16. PROJECT MEETINGS.

A. The Contractor and COR shall conduct project meetings throughout the construction period as deemed necessary.

1.17 FACILITY CUT‐OVER & INTERRUPTIONS OF SERVICE.

A. Only on‐site FAA maintenance personnel and the COR are authorized to energize and de‐energize equipment or to operate circuit breakers, switches, or fuses in FAA facilities. The COR has the authority to stop work at any time if work activities interfere with the operation of any FAA facility.

1.18 INSPECTIONS.

A. Access for Inspection ‐ The Contractor shall allow the COR complete access to all portions of the work. Portions of the work buried, enclosed, or disguised, shall be inspected by the COR before being obscured by the next operation of the Contractor. Work obscured before inspection and acceptance by the COR, may, at the option of the COR be opened for inspection at no additional cost to Government.

B. The COR will inspect all work in progress up to completion and final Contractor's

Acceptance Inspection (CAI) including all materials, tools, and equipment. Such inspection may extend to all or a part of the work for the preparation, fabrication or manufacture of the materials to be used. The COR will notify the Contractor of any non‐compliance with the contract specifications and/or drawings, and may reject workmanship or materials accordingly.

C. Contractor's Acceptance Inspection (CAI) ‐ Following substantial completion of all the Contractor's work, a CAI will be conducted between the Contractor and Government. The COR will review the contract documents and verify that the Contractor has completed all required work. If work remains to be completed, an itemized list will be prepared, and the Contractor at no additional cost to the Government shall complete the remaining tasks correctly. A Joint Acceptance Inspection (JAI) requires FAA personnel to be present and it may be held concurrently with the CAI.

1.19 TEMPORARY FACILITIES.

A. Temporary Electrical Power. 120V/240V electrical power will be made available for use by the Contractor at no cost for the duration of the project.

B. Sanitary Facilities: Sanitary Facilities are not available at this work site. The Contractor shall provide temporary toilet facilities as required for employees.

End Section 01 11 10

SECTION 02 83 00 – LEAD‐BASED PAINT ENCAPSULATION

PART 1 – GENERAL REQUIREMENTS

1.01 SCOPE OF WORK

A. This specification applies to the work stated in Section 01 00 10 of this statement of work to encapsulate ceiling and wall finishes containing lead‐based paint.

B. For conflicts between this specification and the approved manufacturer’s requirements, the manufacturer’s requirements shall take precedence.

1.02 APPLICABLE PUBLICATIONS.

Occupational Safety and Health Administration

(OSHA)

Lead Standard: 29 CFR 1910.1025 and 29 CFR 1926.62, U.S. Occupational Safety and Health Administration (OSHA) (1993).

U.S. Department of Housing and Urban Development (HUD)

Guidelines for the Evaluation and Control of Lead‐Based Paint Hazards in Housing, Chapter 13 Abatement by Encapsulation, 2nd edition, July 2012.

U.S. Environmental Protection Agency (EPA) (1996).

Requirements for Lead‐Based Paint Activities in Target Housing and Child‐Occupational Facilities: 40 CFR 745.

State of Indiana State of Indiana Administrative Code 410 ACI 32 requirements.

ASTM ASTM E 1795‐04 Standard Specification for

Non‐Reinforced Liquid Coating Encapsulation Products for Leaded Paint in Buildings, Latest Edition.

ASTM ASTM E 1796‐03(2011) Standard Guide for Selection and Use of Liquid Coating Encapsulation Products for Leaded Paint in Buildings.

Steel Structures Painting Council (SSPC):

SSPC‐SP 1 ‐ Solvent Cleaning. SSPC‐

SP 2 ‐ Hand Tool Cleaning. SSPC‐SP 3

‐ Power Tool Cleaning.

SSPC‐SP5/NACE No. 1, White Metal Blast Cleaning.

SSPC‐SP6/NACE No. 3, Commercial Blast

SSPC‐SP7/NACE No. 4, Brush‐Off Blast

SSPC‐SP10/NACE No. 2, Near‐White Blast

SSPC‐SP11, Power Tool Cleaning to Bare Metal.

SSPC‐SP12/NACE No. 5, Surface Preparation and Cleaning of Metals by Waterjetting Prior to Recoating.

1.03 QUALITY ASSURANCE.

A. Single Source Responsibility: Obtain lead encapsulation coating from a single manufacturer with not less than 15 years of successful experience in manufacturing and specifying installation of the principal materials described in this section. Provide secondary/supplementary materials (topcoats, primers, caulking/foam) only of type and from a source recommended by the manufacturer of the primary material.

B. Contractor Experience: The installer shall be a firm or individual experienced in applying coatings similar in material, design, and extent to those indicated for this Project, and whose work has resulted in applications with a record of at least 5 projects of successful in‐service performance completed in the last 10 years. Contractor must furnish the following proof of experience upon request:

A. References Section 00 10 01 of this statement of work and paragraph 1.02 of this specification.

1.04 SUBMITTALS.

A. Reference Section 00 10 01 of this statement of work for submittal requirements.

1.05 DELIVERY AND STORAGE

A. Deliver manufacturer's unopened containers to the work site. Packaging shall bear the manufacturer's name, label, and product number (as well as minimum information detailed at Section 2.01, Subsection C of this specification).

B. Storage of materials.

1. Store only acceptable project materials on site.

2. Store in suitable location convenient to progress of work.

3. Comply with health and fire regulations.

4. Storage temperature shall be between 40° F (4.5 C) and 90° F (32 C), or such other ambient temperature conditions as may be specifically recommended by product manufacturer.

5. Encapsulants shall not be permitted to freeze on site. The Delivery of encapsulate should be refused if freezing during transit is probable.

6. Avoid storage directly in hot sun exposures.

7. Keep containers tightly closed when not in use.

8. Keep out of reach of children.

C. Handling.

1. Dispose of water‐based and solvent‐based materials, encapsulant and supplemental products, in accordance with requirements of local authorities having jurisdiction.

2. Verify that encapsulant and supplemental products are within acceptable shelf life, and do not utilize any product that is older than the maximum shelf life stated by the manufacturer.

PART 2 ‐ PRODUCTS

2.01 ENCAPSULANT BASIS FOR DESIGN.

A. Fiberlock™ L‐B‐C Lead Barrier Compound – (Type III Interior/Exterior), Product 5800‐5801‐5 (Tintable White) or approved equal.

2.02 KEY PERFORMANCE ATTRIBUTES OF ENCAPSULANT.

A. Exposure: Interior/Exterior.

B. Dry Film Thickness Compliance to ASTM E 1795 (Interior Use): 7 mils.

C. Dry Film Thickness Compliance to ASTM E 1795 (Exterior Use): 7 mils.

D. Finish: Matte.

E. Specular Gloss: 5.5° ± 1 @ 60°.

F. Volume Solids: 45.0% ± 2.

G. Weight Solids: 59.0% ± 2.

H. Viscosity @ 77°F: 95‐120 KU @ 70°F.

I. Maximum VOC: 88 g/l.

J. Flame Spread (UL 723): 0

K. Smoke Development (UL 723): 0

L. Contains FDA‐approved Anti‐Ingestant (Bitrex®)

M. Underwriter’s Laboratories (UL®): Classified

2.03 COMPATIBILITY.

A. The Contractor shall verify the encapsulant submitted is compatible with the surfaces to be covered.

2.04 LABELING.

A. Ensure inclusion on labels of containers of encapsulant and all supplementary products:

1. Product name, and type (description).

2. Batch Number.

3. Manufacture date.

4. Product SKU.

5. Color number/identification.

2.05 COLORS.

A. Colors shall be selected by the COR from Manufacturer’s colors available.

B. Clear encapsulants for lead‐based paint are not acceptable.

2.06 MIXING.

A. Accomplish job mixing and application only when acceptable to the

Architect/Engineer.

B. Mix components only in containers furnished or approved in writing by the Manufacturer.

C. Mix encapsulant thoroughly, preferably with an electric drill mounted device designed for blending liquid coatings. When a clear liquid is present in the headspace when container is opened, installer is to consider that liquid an integral part of the product, and such liquid must be mixed in completely (unless the encapsulant manufacturer expressly instructs otherwise).

D. Thinning or diluting of the encapsulant is not permitted, unless expressly instructed in writing in advance by the manufacturer.

PART 3 ‐ EXECUTION

3.01 REQUIREMENTS.

A. Inspection.

1. examine surfaces to be encapsulated. The purpose of the visual inspection is to evaluate existing surface conditions and determine how to properly encapsulate in accordance with this Statement of Work. If the surface cannot be put into an acceptable condition, as described within this Statement of Work for the particular substrate type and/or surface conditions, do not encapsulate.

2. the COR immediately upon determination that surfaces scheduled to receive encapsulant are unacceptable for proper adhesion or subsequent performance. If substrate preparation is the responsibility of another installer, notify the COR of unsatisfactory preparation before proceeding.

3. not proceed with surface preparation or encapsulant application until conditions are suitable. Work should commence only after conditions have been corrected and approved by all parties, otherwise application of coatings will be considered as an acceptance of surface conditions.

4. assessments in accordance with local authorities for specific surface assessment requirements.

B. Tape Test.

1. Following the visual inspection, use the procedure outlined below to perform an adhesion tape test. A tape test involves the application of pressure sensitive tape to the paint system, then removing the tape and measuring the paint removed by the tape, if any. Surfaces to be evaluated should be appropriately clean, dry and sound as if prepared for encapsulation

2. The purpose of the adhesion tape test is to determine the adhesion of the existing paint system.

3. Required:

Tape: two (2”) inch wide, pressure sensitive adhesive clear tape 3M 600 or equivalent (not duct or packing tape).

Pencil with rubber eraser.

Resealable plastic storage bags.

Permanent Marker.

4. Adhesion Tape Test:

a. Apply a 6 ‐ 10” strip of pressure sensitive adhesive tape.

b. Burnish the tape down on surface with the rubber eraser end of a pencil.

c. After 90 seconds, remove (do not yank) the tape by pulling smoothly and slowly back upon itself at as close to a 180° angle as possible.

5. Evaluation of Adhesion Tape Test:

a. If more than a square inch of paint is removed along with the tape, the inter‐ coat adhesion of the existing paint system is poor and surface preparation (i.e.

wet sanding, scraping, cleaning, etc.), must be administered to remove layers that are poorly adhered before applying a primer or the encapsulant.

b. If less than a square inch of paint is removed from the substrate, the surface is sound and can be encapsulated.

c. Tape can be retained in plastic bags to be labeled with location, time and date, name of project; and filed with project documents.

C. Encapsulant Patch Test.

1. The encapsulant patch test is a small‐scale application of encapsulant to an area or areas representative of the surface to be encapsulated.

2. Conduct a patch test if there is any question concerning surface conditions that may interfere with encapsulant performance (e.g., adhesion interference due to unstable existing paint systems, excessive gloss sheens, surface contaminants (mold, soot), or repellent chemical residues, such as alkalinity, grease, oils.), excessive substrate moisture content; or conditions that might generate unsatisfactory aesthetics (e.g., migrating or “bleeding” stains)). Surfaces to be evaluated should be appropriately clean, dry and sound as if prepared for full‐ scale encapsulation.

3. Required:

Tape: two (2”) inch wide, pressure sensitive adhesive clear tape 3M 600 or equivalent (not duct or packing tape).

Pencil with rubber eraser.

Resealable plastic storage bags.

Permanent Marker.

Resealable plastic storage bags

Permanent Marker.

Small liquid (wet) sample of the candidate encapsulant product.

Wet film thickness gauge.

Application and cleaning tools as needed (brush, roller).

4. Encapsulant Procedures.

a. Choose a 6”x6” area of a surface representative of those to be encapsulated. If working on trim or other narrow components, the shape of the patch may change provided the same area (36 square inches) is encapsulated for the test.

b. Patch tests may be conducted where deemed necessary (i.e., one per room, or one per type of architectural element present in the dwelling) or as required by relevant state rules and regulations concerning the proper use of lead‐based paint encapsulants.

c. Apply encapsulant in accordance with the instructions within this Specification for the substrate type and existing paint conditions present.

d. Use a wet film thickness gauge to ensure proper application to the minimum wet film thickness specified by the manufacturer.

e. Allow the encapsulant to cure substantially (but not necessarily to total cure) before evaluating performance. Under ideal ambient conditions (78°F (air and substrate) and 50% relative humidity) curing sufficiently to evaluate the patch test may take 4‐10 days. Consult the manufacturer for product specific guidance. Cure can be accelerated by using forced ambient or warmed air.

5. Evaluating Encapsulant Patch Test: Examine the patch for defects.

a. Bubbling may indicate chemical contamination of the surface that must be removed by more thorough cleaning.

b. Cracking may indicate inadequate temperatures for proper curing, surface contaminants, or other environmental conditions not conducive to application of an encapsulant or any topical coating (paint).

c. Stains generated within the encapsulant film subsequent to application may indicate a source of water‐soluble pigment on or within the surface that must be blocked using a primer recommended by the manufacturer. Choose a primer or sealer appropriate for the substrate type and the perceived source of the pigmentation.

d. When visual defects are noted in the cured patch test, remedy the source condition that was likely to have generated those defects, and retest.

6. Ensuring Adhesion of Encapsulant Patch Test.

a. Perform an adhesion tape test on a fully cured patch test in accordance with the description in section 3.01.B.a of this Specification.

b. If delamination occurs (i.e., encapsulant or encapsulant and some of the underlying paint is present on the tape, and the encapsulant has not cured under ideal conditions, allow more time to elapse then retest.

c. Failure of the test patch does not indicate that the candidate encapsulant may not be used to encapsulate the surface in question. Failure of any encapsulant test patch indicates that additional surface preparation procedures are necessary for successful application.

3.02 PREPARATION OF SURFACES.

A. Complete small scale lead‐based paint removal of flakes in accordance with all local, state, and federal requirements prior to encapsulating.

B. All surfaces to be encapsulated should be properly prepared so that all are clean, dry, sound, and de glossed at the time of application.

C. Wash all areas to be encapsulated with manufacturer approved lead‐specific surface cleaner. Clean to the extent required to remove existing deteriorated coatings and any other foreign matter, paying particular attention to areas found under structural components such as eaves, beams, archways, etc.

D. If necessary, remove oil, grease and similar surface contamination with manufacturer‐approved degreasing surface cleaner which is free‐rinsing and does not require a neutralizer.

E. Rinse surfaces with clean water. Avoid uncontrolled release of rinsate beyond the work area, as it may contain lead. Jurisdictional regulations for management of rinsate (collection and disposal of waste liquids) can vary, and project‐specific requirements are the responsibility of the installer.

F. Clean mold and mildew from surfaces to be encapsulated using oxidizing cleaners reactive with organic contaminants, formulated with hydrogen peroxide. Avoid using bleaches for mold removal or cleaners for mold removal that require a rinse.

G. ick and sharp edges of paint build‐ups, runs and sags should be wet sanded smooth to achieve a feathered edge.

H. Fill minor surface voids (e.g., isolated hairline cracks) with appropriate caulk or patching compound and smooth off to match adjacent surfaces. Review filler or caulk before use to ensure the product will accept a water‐based coating.

I. High‐Sheen/Gloss Surfaces: A good profile (roughened surface) must be developed on high gloss or smooth, sound surfaces in order for an encapsulant to sufficiently adhere to the substrate. To reduce sheen and provide a profile that permits encapsulant adhesion wet clean and scour with detergent or utilize a commercially available liquid deglosser formulated to etch high‐sheen surfaces. Use deglossers strictly in accordance with the manufacturer’s instructions for that product. If cleaned and dry surfaces continue to exhibit loose particulate residues, such as chalking, dusting, attempt to remove post‐cleaning residues with a HEPA vacuum.

J. Surface Drying After Cleaning:

1. Allow surface to dry before applying an encapsulant.

2. The extent of drying after cleaning may be product specific, and specific guidance will be available from the manufacturer.

3. When sub‐surface moisture is a concern, use a moisture meter designed to evaluate residual moisture content left behind by cleaning or precipitation in that substrate type. Generally, lead encapsulants do not efficiently permit trapped moisture to migrate through the encapsulant film. Apply encapsulants only when conditions measured are within the dry (lower moisture) end of the paintable range per the moisture meter used.

3.03 SURFACE PREPARATION INSTRUCTIONS FOR SPECIFIC SURFACES.

A. WOOD

1. Water‐soluble Stains: Surfaces which exhibit water‐damage, or highly‐ pigmented woods (including, but not limited to redwood, cypress, cedar, and/or knots in most wood substrates) rendered bare by deterioration of existing paint or by surface preparation should be primed with a stain‐blocking primerx.

2. Rust: Wood substrates containing nails or other metal fixtures which may cause a migrating or “bleeding” rust stain should be spot‐primed with a rust inhibiting primer.

3. Rot(Wood Decay Fungi): Old, weathered wood that is moist and spongy is attributable to "damp" or "wet" rot. Areas that are dry and crumbly are referred to as "dry rot." Both dry and damp rot are caused by microorganisms that must be removed to prevent the rot from spreading. Cut away the rot affected wood plus several inches beyond the perimeter of the rot damage. Apply an EPA‐registered disinfectant/sanitizer that includes fungicidal capability and instructions on the product label. Patch‐in or plug removed areas with rot‐free, new wood. Or replace entire components with rot‐free replacements.

B. Concrete, Masonry, Stucco, Brick, Concrete Blocks, Etc.

1. Remove surface dust. Steam‐cleaning and/or a high‐pressure‐water system may be used for cleaning. Such a system must adequately remove dirt and chalk from the surface without damaging the substrates or adjacent areas.

2. Remove efflorescence (a growth of salt crystals on a surface caused by evaporation of alkali/salt‐laden water). Efflorescence indicates the presence of alkaline surface residues that may interfere with the adhesion of any topically‐ applied coating.

a. Check suspect areas with pH indicator paper suitable for detecting surface pH in the 1‐12 range. Follow the manufacturer’s instructions for the proper use of pH indicator paper, and use distilled water whenever possible to avoid analysis biased by acidic tap water.

b. If a highly‐alkaline surface pH is detected, apply a manufacturer‐ recommended acid wash solution designed to neutralize alkaline surface conditions. Rinse neutralizer residue with clean water and permit the surface to dry. Retest with pH paper after neutralization, and repeat process as necessary before encapsulation.

c. If surfaces continue to spall and/or exhibit chalk after thorough and repeated cleaning, apply a masonry conditioner to bind up loose surface particulate matter. Consider an Encapsulant Patch Test to determine whether a masonry conditioner or other primer coat is necessary.

d. Surfaces which exhibit water‐damage, discoloration, or highly‐pigmented bare brick or masonry substrates should be primed with a stain‐blocking primer.

Some masonry conditioners can also block some potentially migrating stains.

e. Concrete floors are not covered in this specification. For information on encapsulating lead‐based paint on concrete floors, consult the encapsulant manufacturer.

f. For below‐grade applications to cementitious substrates such as concrete, conduct multiple Encapsulant Patch Tests, and observe tests for a longer than normal evaluation period. Below‐grade applications can be impacted by hydrostatic pressure and water‐vapor transmission through substrates on the perimeter of a foundation. Generally, lead encapsulants do not efficiently permit moisture to migrate through the encapsulant film.

g. Brick (especially, red, brown) can contain iron and other mineral compounds which can migrate into an encapsulant topcoat creating a bleeding stain similar to a rust stain. Bare brick, especially dark color brick, may need to be sealed with a stain blocking primer or masonry conditioner.

h. Previously applied waterproofing/damproofing membranes and coatings can be hydrophobic and interfere with the adhesion of an encapsulant.

C. Gypsum Wallboard.

1. Surface defects shall be filled, wet sanded and spot primed with a masonry conditioner, stain blocking primer, or equivalent sealant/undercoat.

2. Gypsum wallboard exhibiting “nail‐popping” shall be repaired, filled, wet sanded and spot‐primed with a 100% acrylic rust‐inhibiting universal surface primer prior to encapsulating.

1. Surface Assessment & Preparation For Metal Surfaces.

a. Degrees of Deterioration of Painted Steel Surfaces: Use the ASTM Method D160 or “SSPC Guide to Visual Standard No. 2 for evaluating Degree of Rusting on Painted Steel Surfaces”. The degree of rusting shall be correlated as follows:

Sound Paint System 9 ‐ 10

Slight to Moderately Deteriorated Paint System

6 ‐ 8

Severely Deteriorated Paint System 0 ‐ 5

2. Ferrous Metal.

a. Remove grease, rust, scale, dirt and dust rust and scale by wet wire brushing and wet sanding. Always avoid dry wire brushing or sanding any lead‐containing surfaces as this may increase lead exposure.

b. Remove dust, dirt, oil and grease. Clean surfaces using a manufacturer‐ approved degreasing surface cleaner which is free‐rinsing, and does not require a neutralizer. When cleaned ferrous metal surfaces are thoroughly dry, immediately apply a manufacturer‐approved rust inhibiting metal primer to prevent “flash” rusting.

3. Galvanized Metals. Remove all oil, grease, dirt, lose, or scaling paint, mil scale and other foreign matter by wire brushing and wet sanding. Always avoid dry wire brushing or sanding any lead‐containing surfaces as this may increase lead exposure.

Surface oil should be wiped off with mineral spirits and a clean rag. When thoroughly dry apply a manufacturer‐ approved rust inhibiting metal primer to any areas where galvanization has been lost due to exposure and/or cleansing, and encapsulants would be applied directly to bare metal. Previously painted galvanized substrates may not need to be primed except for spot areas where the encapsulants would be applied directly to bare metal.

4. Copper will readily accept encapsulants and preparation requirements entail only a thorough cleaning. Perform solvent degreasing as above, followed by application of a “tie‐ coat” adhesion enhancing primer.

5. Aluminum.

a. Remove rust and scale by wire brushing and wet sanding. Always avoid dry wire brushing or sanding any lead‐containing surfaces as this may increase lead exposure.

b. Wash all areas to be encapsulated with manufacturer approved lead‐specific surface cleaner. Clean to the extent required to remove existing deteriorated coatings and any other foreign matter, paying particular attention to areas found under structural components such as eaves, beams, archways, etc. Cleaner should be mildly acidic (pH 5‐6), TSP‐free (no trisodium phosphate) free‐rinsing, and does not require a neutralizer. In some cases, a degreaser may also be needed to remove stubborn oils, grease and similar contaminants. Under certain circumstances, it may be necessary to develop a profile by mechanical means such as power tool cleaning.

c. When cleaned aluminum metal surfaces are thoroughly dry, immediately apply a manufacturer‐approved rust inhibiting metal primer to prime rust post cleaning on ferrous metal architectural components (such as nail &/or screw heads, fasteners, etc.), and to prevent “flash” rusting.

d. To ensure adhesion, prime entire lead painted and bare aluminum surface that is required to be encapsulated, to achieve proper bond. Primers utilized shall be water‐based, urethane modified, acrylic primer‐sealers.

3.03 APPLICATION.

A. Encapsulants shall be applied in accordance with manufacturer’s instructions and these specification documents.

B. Supplementary materials (topcoats, primers, caulking/foam) only of type and from a source recommended by the manufacturer (of the encapsulant) shall be used.

C. Apply encapsulant only after the surface has been examined, assessed, prepared, cleaned, primed and dried, as outlined in the surface assessment and preparation sections of this specification (sections 3.01 and 3.02). Application of encapsulant to surfaces that are not clean, dry, sound, deglossed and properly primed as described will void all warranties.

D. Apply encapsulant at a wet mil film thickness that will yield the recommended minimum dry mil film thickness at which the submitted testing to ASTM E 1795 documents compliance with performance requirements mandated in regulations.

E. Wet mil film thickness should be measured throughout any encapsulation project using a wet mil gauge

1. Wet film thickness gauges are available upon request and at no charge from the manufacturer of the lead paint encapsulant.

2. Another method to assure that a minimum dry film thickness is achieved, is to tape a panel (with a predetermined thickness), to the area being coated so that it receives the same treatment as the surrounding area. Once the film dries the panel should be measured again using a micrometer or dial caliper. Subtract overall thickness from the panel thickness to determine the dry film thickness.

F. METHODS OF APPLICATION.

1. Airless Spray. Apply encapsulants in a sweeping strokes always keeping the tip of the gun parallel to the surface at a distance between 12" to 18" inches.

When areas to be sprayed adjoin inhabited spaces, rooms or offices should be closed off. The following procedures can be implemented to assure ventilation in the area to be sprayed and yet prevent airflow containing bitter‐tasting mists from affecting adjoining rooms. Place an 18‐24" fan (air flow pointed outward) turned on “high” in an open window of the room to be sprayed. Open a door to an adjoining area by no less than 2 inches. This will allow adequate air flow away from inhabited areas and yet allow persons to walk back and forth from the application area to the adjoining rooms.

2. Roller: For best results apply with a 3/8" ‐ 1/2" nap roller (manufacturer recommendations may vary).

3. Brush: Apply liberally and uniformly with a polyester or nylon brush.

3.04 Cleaning.

A. Remove debris promptly from work area and dispose of properly.

B. Remove spilled, splashed, or splattered coating materials from all surfaces.

C. Do not mar surface finish of items being cleaned.

D. Wash all work areas to be with manufacturer approved lead‐specific surface cleaner.

3.05. Air Monitoring Clearance.

A. General Requirements.

1. The final air monitoring clearance shall be used for allowing occupancy to the work areas following the lead based paint encapsulation and the asbestos floor tile and mastic removal.

2. After work area is found to be visually clean, wipe samples will be obtained and analyzed in by

Atomic Absorption Spectroscopy (AAS) or Inductively Coupled Plasma Emission Spectroscopy

(ICP).

3. Release Criteria.

a. 10 micrograms (µg) of lead in dust per square foot (ft2) for floor dust and 100 µg/ft2 for window sill dust.

b. If release criteria are not met, repeat HEPA vacuuming, wet wash, HEPA vacuuming procedure until satisfactory clearance results are obtained.

c. If release criteria are met, remove work area isolation. Remove all equipment, materials from site.

4. Sample Locations:

a. Two (2) wipe samples collected from floor within work area per the COR.

b. Two (2) composite wipe sample collected from horizontal surfaces or objects per the COR.

c. One (1) sample collected from floor outside work area, at least 20’ away from work area entrance.

End Section 02 83 00

SECTION 09 67 23 ‐ ELECTRO‐STATIC DISCHARGE RESINOUS FLOOR SYSTEM

PART 1 – GENERAL REQUIREMENTS

1.01 SCOPE OF WORK.

A. This section includes all labor, materials, tools, equipment, services and supervision required to complete the installation of a low VOC, thin‐set, troweled, heavy‐duty electro static discharge epoxy floor with a non‐slip non‐slip surface as indicated in Section 00 10 00 of this statement of work and drawings. This work includes, but is not limited to the following:

1. Preparation of the concrete floor following the asbestos floor tile removal in accordance with epoxy floor manufacturer’s instructions.

2. Installation of an electro static conductive epoxy floor with the manufacturer’s instructions.

3. Connection of the ESD floor grounding to the existing multipoint ground plate.

B. For conflicts between this specification and the approved manufacturer’s requirements, the manufacturer’s requirements shall take precedence.

1.02 APPLICABLE PUBLICATIONS.

ASTM INTERNATIONAL (ASTM)

ASTM A990/A990M (2020) Standard Specification for Castings, Iron‐Nickel‐ Chromium and Nickel Alloys, Specially Controlled for Pressure‐ Retaining Parts for Corrosive Service

ASTM C881/C881M (2020a) Standard Specification for Epoxy‐Resin‐

Base Bonding Systems for Concrete

ASTM D445 (2019a) Standard Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (and Calculation of Dynamic Viscosity)

ASTM D523 (2014; R 2018) Standard Test Method for Specular

Gloss ASTM D570 (1998; E 2010; R 2010) Standard Test Method for Water Absorption of Plastics

ASTM D638 (2014) Standard Test Method for Tensile Properties of Plastics

ASTM D696 (2016) Standard Test Method for Coefficient of Linear Thermal Expansion of Plastics Between ‐30 degrees C and 30 degrees C With a Vitreous Silica Dilatometer

ASTM D1475 (2013) Standard Test Method for Density of Liquid

Coatings, Inks, and Related Products

ASTM D1544 (2004; R 2010) Standard Test Method for Color of Transparent Liquids (Gardner Color Scale)

ASTM D1652 (2011; E 2012) Standard Test Method for Epoxy

Content of Epoxy Resins

ASTM D2240 (2015; E 2017) Standard Test Method for Rubber Property ‐ Durometer Hardness

ASTM D2471 (1999) Standard Test Method for Gel Time and Peak

Exothermic Temperature of Reacting Thermosetting Resins

ASTM D4259 (2018) Standard Practice for Preparation of Concrete by Abrasion Prior to Coating Application

ASTM F1869 (2016a) Standard Test Method for Measuring Moisture Vapor Emission Rate of Concrete Subfloor Using Anhydrous Calcium Chloride

ASTM F2170 (2019a) Standard Test Method for Determining

Relative Humidity in Concrete Floor Slabs Using in situ Probes

SOCIETY FOR PROTECTIVE COATINGS (SSPC)

SSPC SP 6/NACE No.3 (2007) Commercial Blast Cleaning

1.02 QUALITY ASSURANCE.

A. Prior to commencement of work, submit referenced standards certificates for the following, showing conformance with the referenced standards contained in this section:

1. Epoxy‐Resin Binder/Matrix

2. Cured Epoxy Binder

3. Aggregate

4. Surface Sealing Coat

B. Notify the COR in writing of any anticipated problems using the epoxy floor system specified.

C. Contractor Experience. The installer shall be an authorized representative of the epoxy floor manufacturer experienced in applying ESD epoxy floor systems. The Contractor must furnish the following proof of experience upon request:

A. References Section 00 10 01 of this statement of work and paragraph 1.02 of this specification.

1.04 SUBMITTALS.

A. Reference Section 00 10 01 of this statement of work for submittal requirements.

1.05 DELIVERY AND STORAGE.

A. Deliver manufacturer's unopened containers to the work site. Packaging shall bear the manufacturer's name, label, and product number.

B. Storage of materials.

1. Store only acceptable project materials on site.

2. Store in suitable location convenient to progress of work.

3. Comply with health and fire regulations.

4. Storage temperature shall be between 65° F and 85° F, or such other ambient temperature conditions as may be specifically recommended by product manufacturer.

5. Epoxy floor components shall not be permitted to freeze on site. The Delivery of encapsulate should be refused if freezing during transit is probable.

6. Avoid storage directly in hot sun exposures.

7. Keep containers tightly closed when not in use.

8. Keep out of reach of children.

C. Handling.

1. Verify that the epoxy floor components and supplemental products are within acceptable shelf life, and do not utilize any product that is older than the maximum shelf life stated by the manufacturer.

PART 2 ‐ PRODUCTS

2.01 EPOXY FLOOR SYSTEM BASIS FOR DESIGN.

A. Staticworx, Inc. GroundWorx™ two‐part mix, one part applied conductive epoxy floor coating or equal.

2.02 EPOXY FLOOR KEY PERFORMANCE ATTRIBUTES.

A. Epoxy binding matrix. Provide a clear two‐component compatible system epoxy resin binder consisting of (1) a liquid blend of a biphenyl‐based epoxy resin and analiphatic polyglyceride ether, and (2) a liquid blend of two modified amine curing agents, which individually cures the epoxy resin at room temperature to a glossy smooth film. Ensure the two components and the cured epoxy binder have the following physical properties:

PROPERTY TEST METHOD REQUIREMENT

COMPONENT A (EPOXY RESIN)

Viscosity (kinematic), at 77 ASTM D445 3000 to 5000 degrees F, centipoises

Weight per epoxide, grams ASTM D1652 205 to 225

Color (Gardner Color Scale), maximum

ASTM D1544 5

Weight per gallon, pounds ASTM D1475 9.46 ‐ 9.56

COMPONENT B (CURING AGENT)

Viscosity (kinematic), at 77 degrees F, centistokes ASTM D445 75 to 125

Weight per gallon, pounds ASTM D1475 7.50 to 7.60

Color (Gardner Color Scale), maximum

ASTM D1544 8

B. Cured Epoxy Binder. Provide a cured epoxy binder with the following properties.

Water absorption, percent 24 ASTM D570 0.40 hours at 25 degrees C, maximum

Hardness, Shore D ASTM D2240 74 to 82

Linear shrinkage, ASTM 0.15 millimeter/millimeter, maximum C881/C881M

Shrinkage, glass bow, milli‐ ASTM 0.40 meter divergence,maximum A990/A990M

Coefficient of linear thermal expansion, mm/mm/degrees C, maximum

ASTM D696

0 degrees C to

40 degrees C

200 X 10‐6

Gel time/peak exotherm at 25 degrees C, 100 gm mass in 120 millimeter metal container

ASTM D2471 20 to 40 minutes at 150degrees C, maximum

Tensile strength, psi*at test temperature:

77 degrees F

ASTM D638 4500 to 6500

Tensile elongation,percent at ASTM D638 20 to 40 test temperature:

77 degrees F

Water absorption, percent ASTM D570 0.40 24 hours at 77degrees F, maximum

Hardness, Shore D ASTM D2240 74 to 82

Shrinkage, glass bow, inch divergence, maximum

Coefficient of linear thermal expansion, inch/inch/degree C, maximum

ASTM

A990/A990M

ASTM D696

0 degrees C to 40 degrees C

0.016

200 X 10‐6

Gel time/peak exotherm at 77 degrees F, 100 gm mass in 4 ounce metal container

ASTM D2471 20 to 40 minutes at 300 degrees F, maximum

D. Electro Static Discharge requirements. ANSI/ESD S20.20‐2014.

2.03 LABELING.

A. Ensure inclusion on labels of containers of epoxy floor components and supplementary products:

1. Product name, and type (description).

2. Batch Number.

3. Manufacture date.

4. Product SKU.

5. Color number/identification.

2.06 COLORS.

A. Colors shall be selected by the COR from Manufacturer’s colors available.

PART 3 – EXECUTION

3.01 FLOOR PREPARATION.

A. Prior to applying resinous flooring material and substrate and immediately report any unsatisfactory conditions that exist and repair.

B. Verify that the concrete substrates are dry and the moisture‐vapor emissions are within acceptable levels according to the floor manufacturer'swritten instructions.

3.02 SAFETY PRECAUTIONS.

A. Prior to application in confined spaces of toppings and coatings containing flammable or toxic properties, institute safety precautionsrecommended by the manufacturer of the product.

B. Erect "NO SMOKING" signs, and prohibit smoking or use of spark‐ or flame‐ producing devices within 50 feet of any mixing or placingoperation involving flammable materials.

C. Provide the personnel required to handle, mix, or apply toppings containing toxic or flammable properties with such items of personal protective equipment and apparel for eye, skin, and respiratory protectionas are recommended by the manufacturer of the product. Ensure all personnel are trained in the appropriate use and wearing of personal protection equipment.

3.03 PROTECTION OF ADJACENT SURFACES.

A. Protect adjacent surfaces during installation, provide areas used to store and mix materials with a protective covering under the materials. After application of the sealer coats, protect finished flooring during the remainder of the construction period. Upon completion of construction, remove the protection, clean flooring and, where necessary, repair, reseal, or both, at no additional cost to the Government.

3.04 CONCRETE SUBFLOOR.

A. Clean existing concrete floors, with hard troweled or contaminated areas in conformance with ASTM D4259.

B. Ensure the concrete is free of all paint,sealers, curing agents, oil, grease, moisture, dirt or any other contaminants.

C. Remove any loose or corroded segments of existing concrete. Patch with a grouting compound as recommended by the resinous flooring manufacturer.

D. Fill all cracks with an elastomeric jointing compound compatible with the resinous flooring system used.

3.05 JOINTS.

A. All non moving joints (control joints) may be filled with a semi‐rigid joint compound utilizing a backer rod and must be coated with the ESD top coat.

B. Isolation or expansion joints must be either:

1. Coated with ESD epoxy providing electrical continuity across the joint. Cracks may form in the ESD coating intermittently throughout the length of the joint partially breaking some of the electrical continuity. Electrical continuity will not be interrupted unless the crack runs throughout the entire length of the joint totally separating the two adjacent slabs. If desired, grounding can be achieved using methods .2 and .3 below.

2. Strapped topically with a conductive metallic grounding strap or copper tape containing a conductive adhesive after the ESD coating is applied. This type of grounding must be kept in a location where there is minimal to no traffic which could possibly break this bridged grounding strap.

3. Strapped through the joint by running a U‐ shaped piece of copper tape containing a conductive adhesive or conductive metallic strap down through the joint and back up the other side prior to filling the joint with flexible joint filler. The tabs of the U‐shaped grounding piece extend at least 1 inch out into the slab on either side of the joint. The tabs must not be coated with a primer, remaining bare to receive the ESD coating only. The ESD epoxy coating is then applied to each slab and electrical continuity in maintained through the U‐shaped grounding piece.

This method is used when anticipating very large movement in the joint where a coating is not expected to stay bonded permanently to the joint material.

3.06 MIXING OF MATERIALS.

A. Job mix proportions, mixing times, and material temperature shall meet the manufacturer’s requirements for installation.

B. Use mechanical equipment for mixing of materials in accordance with the manufacturer's instructions.

3.07 APPLICATION.

A. Application of Prime Coat and Troweling.

1. Combine the epoxy binder components A and B in the proportions specifiedby the manufacturer to form a clear compatible system immediately on mixing.

2. Ensure that the prepared subfloor surface is dry and at the manufacturer’s temperature of not less than 60°F when application of the floor topping is initiated.

3. Immediately before application of the prime/scratchcoat on the prepared surface, remove dust or other loose particles by blowing with compressed air or vacuum cleaned. Use only an air compressor equipped with an efficient oil‐ water trap to prevent oil contamination or wetting of surface.

4. Apply a thin roller coat of the epoxy binder specified to the prepared sub‐floor as a prime coat.

B. Place the non‐skid granules so that they are of sufficient quantity and density to provide a non slip surface of the entire floor.

C. Sealer Coat. After the floor…