2017.04.26_Amendment_03_-_Final.pdf

Offers must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended, by one of the following methods:

(a) By completing items 8 and 15, and returning or (c) By separate letter or electronic communication which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by letter or electronic communication, provided each letter or electronic communication makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

E. IMPORTANT: Contractor is not is required to sign this document and return copies to the issuing office.

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT 1. CONTRACT ID CODE

2. AMENDMENT/MODIFICATION NUMBER 3. EFFECTIVE DATE 4. REQUISITION/PURCHASE REQUISITION NUMBER 5. PROJECT NUMBER (If applicable)

7. ADMINISTERED BY (If other than Item 6) CODE

STANDARD FORM 30 (REV. 11/2016)

Prescribed by GSA FAR (48 CFR) 53.243

FACILITY CODE

9A. AMENDMENT OF SOLICITATION NUMBER

9B. DATED (SEE ITEM 11)

10A. MODIFICATION OF CONTRACT/ORDER NUMBER

10B. DATED (SEE ITEM 13)

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offers is extended. is not extended.

12. ACCOUNTING AND APPROPRIATION DATA (If required) copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS.

IT MODIFIES THE CONTRACT/ORDER NUMBER AS DESCRIBED IN ITEM 14.

CHECK ONE A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT ORDER

NUMBER IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation data, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(b).

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority)

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

15C. DATE SIGNED

15A. NAME AND TITLE OF SIGNER (Type or print)

16C. DATE SIGNED

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

PAGE OF PAGES

6. ISSUED BY CODE

8. NAME AND ADDRESS OF CONTRACTOR (Number, street, county, State and ZIP Code) (X)

CODE

15B. CONTRACTOR/OFFEROR

(Signature of person authorized to sign)

16B. UNITED STATES OF AMERICA

(Signature of Contracting Officer)

Previous edition unusable

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AMENDMENT 03 to GS-05P-17-SC-C-0005: CMc Services for the Cupola Restoration Project at the Federal Building and U.S.

Courthouse in Port Huron, Michigan

AMENDMENT 03 is being issued to make the following changes:

... See Continuation Page

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GSA PBS, AMD Southern Contracting Branch S. Illinois/Indiana Contracting Team- Indianapolis 8899 E 56th St. Room: Column 123B Indianapolis, IN 46216-1000

GSA PBS, AMD Southern Contracting Branch S. Illinois/Indiana Contracting Team- Indianapolis 8899 E 56th St. Room: Column 123B Indianapolis, IN 46216-1000

GS-05P-17-SC-C-0005

1 2

04/26/2017

03/16/2017

Continuation Page

Page 2 of 2 GS-05P-17-SC-C-0005

Continued from Block 14…

1. Incorporate the attached specification section 07 5600 – REINFORCED POLYESTER

FLUID APPLIED ROOFING

2. Revise paragraph I.G. Receipt of Offers, item 1 to state that offers must be received no later than 3 PM Eastern Time on May 8, 2017.

All other terms and conditions remain unchanged.

Port Huron Federal Building and U.S. Courthouse PCN: MI0097ZZ Cupola Repairs GSA PBS Region 5

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PROPERTY OF THE UNITED STATES GOVERNMENT

FOR OFFICIAL USE ONLY

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Properly destroy documents when no longer needed

SECTION 07 5600 - REINFORCED POLYESTER FLUID APPLIED ROOFING

PART 1 GENERAL

1.01 SYSTEM DESCRIPTION

A. The following specification outlines the requirements for a fully reinforced cold fluid-applied unsaturated polyester liquid resin roofing and waterproofing membrane and flashing system, and all other ancillary waterproofing work including but not limited to installation of insulation, cover boards, overburden, sealants and metal work as specified.

1.02 SECTION INCLUDES

A. Adhered fully reinforced, cold fluid-applied, unsaturated polyester liquid resin waterproofing membrane system including membrane, penetration flashings, base flashings, and expansion joints.

B. Substrate preparation, cleaning, leveling and patching.

C. Temporary waterproofing and priming.

D. Waterproofing membrane installation.

E. Flashing installation.

1.03 REFERENCES

A. National Roofing Contractors Association (NRCA) Roofing and Waterproofing Manual.

B. ASTM - D638 - Test Methods for Tensile Properties of Plastics

C. ASTM - D4541 - Method for Pull-Off Strength of Coatings using Portable Adhesion Tester

D. ASTM - E96(A) - Test Methods of Moisture Transmission of Material

E. ASTM E-108, ANSI/UL 790 for fire resistance.

F. Steel Structures Painting Council (SSPC)

1.04 SUBMITTALS FOR REVIEW

A. Membrane System Product Data: Provide current standard printed product literature indicating characteristics of membrane materials, flashing materials, components, and accessories product specification and installation.

B. Product Samples: Submit product samples of membrane and flashing materials showing color, texture, thickness and surfacing representative of the proposed system.

C. Instructions: Submit manufacturer's detailed application instructions.

D. Submit sample of warranties for the periods stipulated. Each specimen must be a preprinted representative sample of the issuing company’s standard warranty for the system specified.

E. Membrane Shop Drawings: Submit shop drawings approved by the membrane manufacturer.

Show project plan, size, flashing details, and attachment.

F. Membrane manufacturer's approval letter of installer.

1.05 QUALITY ASSURANCE

A. Applicator: Company specializing in performing the work of this section with not less than 3 years documented experience; approved by system manufacturer for warranted membrane installation.

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B. Evaluate moisture content of substrate materials. Contractor shall determine substrate moisture content throughout the work and record with Daily Inspection Reports or other form of reporting acceptable to the Owner or designated Representative, and Membrane Manufacturer.

C. Membrane Adhesion Tests: See "Field Quality Control" in PART 3 of this specification.

D. Monitor quantities of installed materials. Monitor application of resin mixture, reinforcing fleece and flashing. Perform Work in accordance with manufacturer’s instructions.

E. Mock-up areas shall be used to determine required methods and tools to obtain degree of substrate preparation required by the membrane manufacturer. Conduct tests specified in PART 3 of this specification to verify that substrate preparation meets specified requirements. Tests shall include, but are not limited to, tensile bond strength, adhesion in peel strength, and moisture content of substrate.

1. Prepare and clean a 2 foot by 2 foot area of each substrate material type.

2. Mock-up panels shall be free-standing, temporary type. Do not apply mock-up to permanent work. Remove panels only when the final installation is completed and approved.

3. Submit findings in writing to Owner or his designated Representative and Membrane Manufacturer.

1.06 PRE- INSTALLATION MEETING

A. Convene a pre-installation meeting at the job site (1) week before starting work of this section.

Require attendance of parties directly affecting work of this section. Include Membrane Manufacturer’s Representative. Review roofing/waterproofing preparation and installation procedures, coordination and scheduling required with related work, and condition and structural loading limitations of deck/substrate.

1.07 FIELD INSPECTION SERVICES

A. Manufacturer’s technical representative shall provide the following inspections of the membrane application:

1. Job start inspection at the beginning of each phase of the project, to review special detailing conditions and substrate preparation.

2. Final punch-list inspection at completion.

1.08 DELIVERY, STORAGE, AND PROTECTION

A. The Contractor together with the Owner or his designated Representative shall define a storage area for all components. The area shall be cool, dry, out of direct sunlight, and in accordance with manufacturer‘s recommendations and relevant regulatory agencies. Materials shall not be stored in quantities that will exceed design loads, damage substrate materials, hinder installation or drainage.

B. Roll goods shall be stored horizontally on platforms sufficiently elevated to prevent contact with water and other contaminants. Do not use rolls that are wet, dirty or have damaged ends.

C. Roofing/waterproofing materials must be kept dry at all times. If stored outside, raise materials above ground or roof level on pallets and cover with a tarpaulin or other waterproof material.

Plastic wrapping installed at the factory should not be used as outside storage covers.

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D. Follow manufacturer’s directions for protection of materials prior to and during installation. Do not use materials that have been damaged to the point that they will not perform as specified.

Fleece reinforcing materials must be clean, dry and free of all contaminants.

1.09 ENVIRONMENTAL REQUIREMENTS

A. Do not apply roofing/waterproofing membrane during or with the threat of inclement weather.

B. Application of cold fluid-applied reinforced unsaturated polyester roofing/waterproofing membrane may proceed while air temperature is between 35 deg. F (2 deg. C) and 105 deg. F (40 deg. C) providing the substrate is a minimum of 5 deg. F above the dew point.

C. When ambient temperatures are at or expected to fall below 50 deg. F (10 deg. C), or reach 75 deg. F (24 deg. C) or higher, follow Membrane System Manufacturer’s recommendations for weather related additives and application procedures.

D. Ensure that substrate materials are dry and free of contaminants. Do not commence with the application unless substrate conditions are suitable. Contractor shall demonstrate that substrate conditions are suitable for the application of the materials.

E. When installing membrane on an occupied or partially occupied structure, Contractor shall implement odor control and elimination measures prior to and during the application of the roofing/waterproofing materials. Control/elimination measures shall be field tested at off-hours and typically consists of one or a multiple of the following measures:

1. Sealing of air intakes with activated carbon filters. Install filters in accordance with requirements and recommendations of the filter manufacturer. Seal filters at joints and against building exterior walls to prevent leakage of unfiltered air.

2. Sealing of doorways, windows, and skylights with duct tape and polyethylene sheeting to prevent leakage of air into the building.

3. Erection and use of moveable enclosures sized to accommodate work areas and stationary enclosure for resin mixing station. Enclosure shall be field constructed or pre-manufactured of fire retardant materials in compliance with local code requirements in accordance with requirements of the Owner or his designated Representative. Equipment enclosures with mechanical air intake/exhaust openings and Odor Control Air Cleaners, as required to clean enclosed air volume and to prevent odor migration outside the enclosure.

Exhaust opening shall be sealed with activated carbon filter.

4. Protection of Contractor personnel and occupants of the structure and surrounding buildings as necessary to comply with requirements of OSHA, NIOSH and governing local authority.

1.10 COORDINATION & PROTECTION

A. Coordinate the work with the installation of associated metal flashings, accessories, appurtenances, etc. as the work of this section proceeds.

B. Building components shall be protected adequately (with tarp or other suitable material) from soil, stains, or spills at all hoisting points and areas of application. Contractor shall be responsible for preventing damage from any operation under its Contract. Any such damage shall be repaired at Contractor’s expense to Owner’s satisfaction or be restored to original condition.

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C. Protect finished roofing/waterproofing membrane from damage by other trades by the use of a cushioning layer such as 1” thick expanded polystyrene insulation and an impact layer such as 1/2” thick exterior-grade plywood.

D. Do not allow waste products containing petroleum, grease, acid, solvents, vegetable or mineral oil, animal oil, animal fat, etc. or direct steam venting to come into direct contact with the membrane unless approved by manufacturer’s chemical resistance chart.

1.11 WARRANTY

A. Manufacturer’s Select Labor and Material Warranty: Provide 20 year manufacturer’s select warranty under provisions of this section. This warranty provides for cost of labor and materials required to address loss of watertightness, limited to amounts necessary to affect repairs necessitated by defective material, with total expenditure limited to the original cost to the Owner of the materials.

B. Provide Special Project Warranty specified in 01 7810.

PART 2 PRODUCTS

2.01 MANUFACTURERS

A. Basis of Design: Kemper BRM / V210M liquid-applied polyester roofing system;

www.Kemper-System.com.

B. Other Acceptable Manufacturers:

1. Siplast ALSAN RS liquid-applied PMMA roofing system; www.siplast.com.

2. Soprema Parapro liquid-applied PMMA roofing system; www.soprema.us.

2.02 SYSTEM DESCRIPTION

A. Kemper & Soprema:

1. Liquid resin.

2. Polyester fleece in saturated resin.

3. Liquid resin.

4. Primer.

5. Plwood substrate specified in Section 06 1000.

B. Siplast:

1. Liquid resin.

2. Polyester fleece in saturated resin.

3. Liquid resin.

4. Paradiene 20 SA P.

5. Primer.

6. Plwood substrate specified in Section 06 1000.

2.03 MEMBRANE

A. Membrane: Two-component with catalyst, cold fluid-applied reinforced unsaturated polyester waterproofing membrane with a 360 degree needle punched non-woven 165 g/m2 polyester reinforcing fleece, for a finished dry film membrane thickness of 0.070 inch nominal per ply.

Provide one of the following:

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1. Kemper System America, Inc.’s Kemperol BRM resin (two-component) for use in an adhered waterproofing system.

2. Kemper System America, Inc.’s Kemperol V210M resin (two-component) for use in an adhered waterproofing system.

B. Physical Properties:

1. Physical Property Test Method Typical Values

2. Color - Amber/Gray

3. Physical State - Cures to solid

4. Thickness (165 Fleece) - 70 mils.

5. Tensile Strength @ break ASTM D-751 90 lb/in

6. Elongation ASTM D-751 55%

7. Tearing resistance ASTM D-751 3.7 lbs.

8. Puncture resistance FTMS 101-2031 145 lbf

9. Dimensional stability ASTM D-1204 0.1%

10. Water absorption ASTM D-471 2.2%

11. Surface hardness ASTM D-2240 Shore A 75

12. Water vapor transmission ASTM E-96 0.27 perms

13. Usage time - 15 minutes

14. Water resistant after - 30 minutes

15. Solid to walk on after - 4-6 hours

16. Can be driven on after - 24 hours

17. Surfacing to be applied between - 2 days

18. Apply overburden after - 2 days

19. Completely hardened - 3 days

20. Crack spanning - 2mm/0.08 inch

21. Short-term temperature resistance - 250-C/ 482-F

2.04 FLASHINGS

A. Membrane Flashings: A composite of the same resin material as field membrane with 165 g/m2 fleece reinforcement.

2.05 SUBSTRATE PRIMERS AND RESIN ADDITIVES

A. Polyurethane Primer: Two-component, solvent-free polyurethane resin for use in improving adhesion of membrane to wood, metal, and bituminous substrate surfaces:

1. Kemper System’s Kempertec D or Kempertec R primer.

B. Hot Weather Additive: Additive specifically designed to slow resin catalyzation process at ambient temperatures above 75ºF (24ºC). Do not use inhibitor at ambient temperatures of 75ºF (24ºC) or less. Inhibitor to be used with white resin prior to mixing of multi-component resin, as provided by the following manufacturer:

1. Kemper System’s Kemperol UP-I Inhibitor.

C. Cold Weather Additive: Additive specifically designed to increase resin catalyzation process at ambient temperatures below 50ºF (10ºC). Cold activator to be used with white resin prior to mixing of multi- component resin, as provided by the following manufacturer:

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1. Kemper System’s Kemperol UP-A Cold Activator.

2.06 ACCESSORIES

A. Application Tools, Accessories, and Cleaners: Supplied or approved by membrane manufacturer for product installation.

B. Solvent-Based Cleaner for Tools and Membrane Tie-Ins: Methyl Ethyl Ketone (MEK) or acetone.

C. Water-Based Cleaner for Membrane: Simple Green HD.

D. Backer Rod: Expanded, closed-cell polyethylene foam designed for use with cold-applied joint sealant.

E. Caulking: Single component, non-sag elastomeric polyurethane sealant meeting ASTM C920,Type S,Grade NS, Class 35 for use in sealing cracks and joints, and making watertight seals where required. The use of urethane caulking shall be limited exclusively to substrate preparation, folowed by application of membrane overcoat; urethane caulking shall not be applied on top of the membrane as a seal between the membrane and adjacent materials.

1. SikaFlex 1A or Sonneborne NP-1.

PART 3 EXECUTION

3.01 GENERAL

A. Install all materials in strict accordance with approved shop drawings and manufacturer's current written installation instructions. Where any deviation occurs between the Contract Documents and approved shop drawings and manufacturer's current written installation instructions, obtain the approval of the Architect before proceeding.

3.02 EXAMINATION

A. Verify that surfaces and site conditions are ready to receive work.

B. Verify deck/substrate openings, curbs, and protrusions through deck/substrate, wood cant strips and reglets are in place and solidly set.

C. Verify deck/substrate is structurally supported, secure and sound.

3.03 PREPARATION OF SUBSTRATE

A. General: Surfaces to be prepared as a substrate for the new waterproofing system as follows:

1. The contractor shall determine the condition of the existing structural deck/substrate. All defects in the deck or substrate shall be corrected before new waterproofing work commences. Areas of deteriorated deck/substrate, porous or other affected materials must be removed and replaced with new to match existing.

2. Prepare flashing substrates as required for application of new waterproofing membrane flashings.

3. Inspect substrates, and correct defects before application of new waterproofing. Fill all surface voids greater than 1/8 inch wide with an acceptable fill material.

4. Remove all ponded water, snow, frost and ice from the work substrate prior to installing new waterproofing materials.

5. The final substrate for waterproofing shall be clean, dry, free of loose, spalled or weak material including coatings, mineral aggregate, and flood coat/gravel surfacing, oil, REINFORCED POLYESTER FLUID APPLIED ROOFING 07 5600-7

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Do not remove this notice grease, contaminants, abrupt changes in level, waterproofing agents, curing compounds, and free of projections which could damage membrane materials.

B. Metals:

1. Clean and prepare metal surfaces to near white metal in accordance with SSPC - SP3

(power tool clean) and as required by membrane manufacturer. Extend preparation a minimum of 1 inch beyond the termination of the membrane flashing materials.

2. Abrade metal surfaces to provide a rough open surface.

3. Remove all debris from the prepared surface.

4. Solvent wipe the surface with MEK or acetone using multiple clean rags and methods to ensure that the cleaned surface is completely free of oil, grease, or residue of any kind.

5. Where shop or field soldered metal fabrications are employed, ensure that the completed fabrication is abraded and completely clean as specified above and is free of all trace of soldering flux or other residue.

C. Wood and Plywood:

1. Plywood shall be identified with American Plywood Association (APA) grade trade marks and shall meet the requirements of product standard PS1. Strip plywood joints with 4” wide strip of flashing membrane. Cover knot holes or cracks with strips of flashing membrane.

2. Apply a thin bead of urethane joint sealant to plywood joints, working the sealant with a putty knife so that the sealant is flush with the surface of the plywood, and avoiding smearing sealant onto the face of the plywood.

3. Strip plywood joints with primer and resin, and a 4” wide strip of flashing membrane saturated in resin. Cover knot holes or cracks in a similar fashion.

D. Other Flashing Surfaces:

1. Remove all contaminants as required by membrane manufacturer. Surface preparation shall be performed by means approved by Owner or his designated Representative.

E. Finish Leveling, Patching and Crack Preparation:

3.04 PRIMER APPLICATION

A. Apply Kempertec D or R urethane-based primer to metal and wood substrates.

B. General:

1. Mix and apply single and two-component primer in strict accordance with written instructions of Membrane Manufacturer. Use only proprietary materials, as supplied by the membrane manufacturer.

2. The substrate surface must be dry, with any remaining dust or loose particles removed using clean, dry, oil-free compressed air, industrial vacuum, cloth wipe or a combination of methods.

3. Do not install primer on any substrate containing newly applied or active asphalt, coal-tar pitch, creosote or penta-based materials unless approved in writing by Membrane Manufacturer. Some substrates may require additional preparation before applying primer.

C. Mixing of Kempertec D Primers:

1. Premix primer Component A thoroughly with a spiral agitator or stir stick. Pour primer

Component B into Component A and mix the components for approximately 2 minutes

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Do not remove this notice with a clean spiral agitator on slow speed or stir stick without creating any bubbles or streaks. Do not aerate. The Primer solution should be a uniform color, with no light or dark streaks present.

2. Do not thin primer. Determine required primer coverage for each substrate material/condition and apply in strict accordance with written instructions of Membrane Manufacturer.

3. Mix only that amount of primer components A & B that can be used in 30 minutes.

D. Mixing of Quick-Dry Kempertec R Primer:

1. Premix primer Component A within clear pouch to obtain consistent appearance. Remove separation cord. Knead primer Component B into Component A and mix the components for approximately 1 minute. The Primer solution should be a uniform color, with no light or dark streaks present.

2. Do not thin primer. Determine required primer coverage for each substrate material/condition and apply in strict accordance with written instructions of Membrane Manufacturer.

3. Primer must be applied within 5 minutes of mixing.

E. Application of Primer:

1. Roll or brush the primer evenly onto the surface to fully saturate the substrate in one application. Do not allow primer to pond or collect in low areas. Follow manufacturer’s recommended application rates to ensure that a thin layer of cured primer remains on the substrate surface.

2. Apply primer only up to the edge of the membrane flashing terminations. Primer application past the membrane terminations requires surfacing with an approved material.

3. Allow standard primers to cure for a minimum of 12 hours before membrane application.

Allow quick-dry and water-borne primers to cure for a minimum of 4 hours before membrane application. Allow PMMA primer to cure for a minimum of 1 hour before membrane application. Membrane must be applied to primer only when completely dry and without tack.

4. Exposure of the primer in excess of 8 days or premature exposure to moisture may require removal and application of new primer. Do not apply new primer over exposed primer older than 8 days, primer prematurely exposed to moisture, or primer used as temporary waterproofing, unless approved in writing by the membrane manufacturer.

F. Disposal of Primer:

1. Cured primer may be disposed of in standard landfills. This is accomplished by thoroughly mixing all components.

2. Uncured primer is considered a hazardous material and must be handled as such, in accordance with local, state and federal regulation. Do not throw uncured resin away.

3.05 MEMBRANE APPLICATION

A. General:

1. Apply the waterproofing membrane immediately following full curing of the primer in order to obtain the best bond between primer and membrane.

2. Mix and apply cold fluid-applied reinforced unsaturated polyester waterproofing membrane in strict accordance with written instructions of Membrane Manufacturer. Use

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3. The primed substrate surface shall be dry, with any remaining dust or loose particles removed using clean, dry, oil-free compressed air, industrial vacuum, cloth-wipe or a combination.

4. Protect all areas where membrane has been installed. Do not work off installed membrane during application of remaining work before 48 hours of curing. Movement of materials and equipment across installed membrane is not acceptable. If movement is necessary, provide complete protection of affected areas.

5. Closely follow the Membrane Manufacturer’s recommendation for hot and cold weather application. Monitor surface and ambient temperatures, including the effects of wind chill.

B. Mixing of Kemperol BRM and V210M Resin:

1. Mix the liquid resin with a spiral agitator until the liquid is a uniform color, with no light or dark streaks present.

2. If the ambient temperature is below 50 deg. F (10 deg. C) or above 75 deg. F (24 deg. C), then a weather related additive should be combined and mixed into the liquid resin.

a. Cold Activator should be added to the liquid resin when the ambient temperature is

50 deg. F (10 deg. C) and below. The activator should be mixed with the spiral agitator for 5 minutes or until both liquids are thoroughly blended.

b. Inhibitor should be added to the liquid resin when the temperature is 75 deg. F (24 deg. C) and above. The inhibitor should be mixed with the spiral agitator for 5 minutes or until both liquids are thoroughly blended.

3. Add the Catalyst Powder to the mixed liquid resin and mix with the same agitator for 5 minutes or until the powder is completely mixed. It is not necessary to wait for the catalyst powder to dissolve before using the resin.

4. Mix only that amount of resin that can be used in 20 minutes.

C. Application of Resin/Fleece:

1. Apply mixed resin to the prepared surface at the manufacturer’s recommended application rate. The resin should be rolled or brushed liberally and evenly onto the surface using a broad, even stroke. cover one working area at a time, between 15 - 20 ft.2 (1.4 - 1.9 m2).

2. Roll out dry polyester fleece onto the liquid resin mix, making sure the smooth side is facing up (natural unrolling procedure), avoiding any folds and wrinkles. the fleece will begin to rapidly saturate with the liquid resin mix. use a medium nap roller or brush to work the resin into the fleece, saturating from the bottom up, and eliminating air bubbles, wrinkles, etc. the appearance of the saturated fleece should be light opaque amber with no white spots. white spots are indications of unsaturated fleece or lack of adhesion. It is important to correct these faults before the resin cures.

3. Apply additional liquid resin mix on top of fleece at the manufacturer’s recommended application rate to finish the saturation of the fleece. Roll this final coating into the fleece, which will result in a glossy appearance. The fleece can only hold so much resin and all excess should be rolled forward to the unsaturated fleece, eliminating ponding or excessive build-up of the resin. The correct amount of resin will leave no whiteness in fleece and there will be a slightly fibrous surface texture. The final resin coating should be smooth and uniform.

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4. Approximately 2/3 of the total resin should be applied to the substrate below the fleece reinforcement, and 1/3 of the total resin should be applied over the fleece reinforcement.

5. Prevent contact between mixed/unmixed resin and new/existing membrane. If any unmixed resin contacts membrane surface remove immediately and clean thoroughly with a cloth rag.

6. At all fleece seams, allow a 2” (5 cm) overlap for all side joints and a 4” (10 cm) overlap for all end joints.

7. At membrane tie-offs, clean in-place membrane with MEK (methyl ethyl ketone) solvent or acetone once resin has cured. Allow solvents to fully evaporate before application of new resin.

D. Disposal of Resin:

1. Cured resin may be disposed of in standard landfills. This is accomplished by thoroughly mixing all components.

2. Uncured resin is considered a hazardous material and must be handled as such, in accordance with local, state and federal regulation. Do not throw uncured resin away.

3.06 FLASHING APPLICATION

A. General:

1. Install flashing system in accordance with the requirements/recommendations of the

Membrane manufacturer and as depicted on standard drawings and details. Provide system with base flashing, edge flashing, penetration flashing, counter flashing, and all other flashings required for a complete watertight system.

2. Wherever possible, install the flashings before installing the field membrane to minimize foot traffic over newly installed field membrane.

3. All membrane flashings shall be installed concurrently with the waterproofing membrane as the job progresses. Temporary flashings are not allowed without prior written approval from the Membrane manufacturer. Should any water penetrate the new waterproofing membrane because of incomplete flashings, the affected area shall be removed and replaced at the contractor’s expense.

4. All flashings shall be terminated as required by the Membrane Manufacturer.

B. Metal Flashing - General:

1. Metal flashings shall be fabricated in accordance with the current recommendations of

SMACNA and in accordance with standard drawings and project details.

2. Metal flashing flanges to which membrane is to be bonded shall be a minimum of 4 inches in width, and secured to the substrate or wood nailers two rows of fasteners appropriate to the substrate type. Space fasteners at 3 inches on center. Stagger fasteners between rows.

3. Metal edges that will be overlaid with membrane shall be provided with a 1/4” min.

hemmed edge.

4. Apply primer, resin, and fleece to metal flange, extending membrane to outside face of metal edging, and to vertical face of metal base/curb flashing.

C. Membrane Flashing - General:

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1. Membrane flashings shall be fabricated with primer appropriate for the substrate surface, resin of the same base chemical type as the field membrane, and fleece of the same weight as the field membrane unless specified otherwise.

2. Primer, resin, and fleece mixing and application methods as specified for field membranes are also suitable for membrane flashing.

3. Fleece shall overlap 2” (5 cm) minimum for all joints. Fleece shall be cut neatly to fit all flashing conditions without a buildup of multiple fleece layers. Work wet membrane with a brush or roller to eliminate blister, openings, or lifting at corners, junctions, and transitions.

D. Pipes, Conduits, and Unusually Shaped Penetrations:

1. Membrane Flashing is typically constructed as a two part assembly consisting of a vertical wrap and a horizontal target patch. There must be a minimum of a 2 inch (5 cm) overlap between vertical and horizontal flashing components.

E. Drip Edges and Gravel Stops:

1. Metal drip edges and gravel stops shall be installed to solid substrate surfaces or wood nailers only. Securement to gypsum-based panels, cementitious stucco, synthetic stucco, wood or metal siding or coping, and other similar materials is not acceptable.

2. Flash all drip edges and gravel stops by extending the field membrane all the way to the edge of the exposed face prior to installing the metal edging. Strip in the metal flange with a separate 8 inch wide strip of membrane adhered to both the securement flange and to the field membrane.

F. Electrical Conduit, Gas Lines and Lightning Protection

1. Supports for electrical conduit and gas lines greater than 1 inch in diameter require the use of a separate engineered support system.

2. Supports for electrical conduit and gas lines 1 inch or less in diameter, and bases for lightning protection rods and cable, can be adhered directly to the membrane surface with a single-component, high quality polyurethane sealant.

3.07 TEMPORARY CLOSURES & WATERSTOPS

A. Contractor shall be responsible to ensure that moisture does not damage any completed section of the new waterproofing system. Completion of flashings, terminations, and temporary closures shall be completed as required to provide a watertight condition. All temporary closures shall be made as recommended or required by the membrane manufacturer.

3.08 PROTECTION

A. Upon completion of waterproofing and flashings (including all associated work), institute appropriate procedures for surveillance and protection of roofing during remainder of construction period. Protect all areas where membrane has been installed.

3.09 FIELD QUALITY CONTROL

A. Conduct field quality control testing before covering the membrane with any other materials.

B. Membrane Adhesion Tests:

1. Contractor shall perform adhesion tests.

REINFORCED POLYESTER FLUID APPLIED ROOFING 07 5600-12

PROPERTY OF THE UNITED STATES GOVERNMENT

FOR OFFICIAL USE ONLY

Do not remove this notice

2. Conduct random tests to determine tensile bond strength of membrane to substrate using an Elcometer Adhesion Tester Model 106 or similar device.

3. Conduct random tests to determine adhesion in peel strength of membrane to substrate using a manual pull test procedure in accordance with the membrane manufacturer's instructions.

4. Perform tests at the beginning of the Work and not less than 3 additional tests during the course of the Work. Submit test results to the Owner or his designated Representative and the Membrane Manufacturer. Contractor shall immediately notify the Owner or his designated Representative and Membrane Manufacturer in the event bond test results are below specified values.

5. Pass/fail criteria shall be required by the membrane manufacturer for each substrate. In the event the strengths are less than required, perform additional substrate preparation so as to achieve required bond and adhesion. Repeat testing to verify suitability of substrate preparation.

3.10 CLOSEOUT

A. Correction of Work:

1. Work that does not conform to specified requirements including tolerances, slopes, and finishes shall be corrected or replaced. Any deficiencies of membrane application, termination or protection as noted during the membrane manufacturer’s inspections shall be corrected or replaced at contractor’s expense.

B. Clean-Up:

1. Site clean-up, including both interior and exterior building areas that have been affected by construction, shall be restored to preconstruction condition.

END OF SECTION