Attach-2-Specifications.pdf

SANTA ANA NATIONAL WILDLIFE REFUGE HEADQUARTERS BUILDING REROOF

HIDALGO COUNTY, TEXAS 2020

GENERAL INFORMATION AND REQUIREMENTS 01009-1

SECTION 01009 - GENERAL INFORMATION AND REQUIREMENTS

PART 1: GENERAL

1.1 SUMMARY:

A. Description of Work: The work shall consist of labor, equipment, supplies and materials, to:

1. Trim trees adjacent to building roof, per notes on drawings.

2. Clean and prepare existing roof membrane to receive new roofing system.

3. Install waterproof roof system per IBC, NRCA, TDI, and industry standards, and per attached plans and specifications. All systems must meet wind loadings per ASCE-7 referenced in IBC, including uplift forces.

4. No rain water shall be allowed to enter building interior due to contractor’s activities.

B. Location: Work under this contract is located at the Santa Ana National Wildlife Refuge in Alamo, Texas in Hidalgo County.

C. Site Visit: Contractors are encouraged to visit the project site and inspect existing conditions prior to submitting quotes. See Federal Acquisition Regulation (FAR) clause 52.236-27 Site Visit. Contact Joe D’Arrigo, Refuge Maintenance Supervisor, at 956-784-7530 or cell phone: 580-514-5805, to arrange a site visit.

1.2 REFERENCES:

Referenced Standards are listed in the applicable specification section.

1.3 DEFINITIONS:

Approvals: Approval of submittals is an indication that the Contractor=s submittals have been reviewed and that there are no objections, except as noted. Approval of deviations shall apply only to those deviations or omissions from the requirements of the drawings and specifications brought to the Contracting Officer’s (CO) attention in writing.

1.4 SUBMITTALS:

GENERAL INFORMATION AND REQUIREMENTS 01009-2

A. Scope: Submittals include shop drawings, manufacturers= literature, as-built drawings, samples, work schedules and a schedule of values.

B. Requirements: Refer to specification sections for submittals required. Allow at least 7 working days for review, plus transmittal time back and forth. Submittals shall be sent or delivered to the Contracting Officer’s Technical Representative (COTR) at U.S. Fish and Wildlife Service, Region 2, Division of Engineering, P.O. Box 1306, Albuquerque, NM 87103-1306. Submittals shall come directly from the Contractor with their stamp and signature of approval; submittals will not be accepted from sub-contractors or suppliers.

Do not commence work which requires review of any submittals until receipt of returned submittals with an acceptable action. Do not allow submittals without an acceptable action marking to be used for the project.

C. Identification of Submittals: Completely identify each submittal by showing at least the following information:

1. Name and address of submitter (Contractor), plus name and telephone number of the individual to contact for further information.

2. Name of project as it appears in these specifications.

3. Contract number, submittal number, and specification section number to which the submittal applies.

4. Whether this is an original submittal or resubmittal.

5. Each item shall clearly note the manufacturer=s name and address, trade name, product, lot, style, color, catalog designation or model number, and locations of use.

D. Submittals shall be transmitted in electron format by email to the COR.

E. There will be no approval of submittals prior to bid opening and award. Submittals will be evaluated based on the requirements of the specifications and drawings, during the submittal process after contract award.

1.5 CONFORMANCE:

Submittals must show clearly that the product, sample or shop drawing conforms to the specifications.

1.6 QUALITY ASSURANCE:

GENERAL INFORMATION AND REQUIREMENTS 01009-3

A. Codes and Standards: The work shall comply with codes and standards applicable to each type of work and as listed in the individual sections of these specifications. This contract incorporates materials, applications, and tests by reference, with the same force and effect as if they were given in full text.

B. Conflict: Where a conflict occurs between reference documents, drawings, and project specifications, the most stringent requirement shall govern.

C. Product basis: Where specifications or drawings call out a specific product or manufacturer, it is understood that an equal or better product is acceptable, as approved in the submittal process.

1.7 DELIVERY, STORAGE, AND HANDLING:

A. Delivery: Protect products incorporated into the work from damage while in transit to the site. Products must be delivered in original unopened containers with manufacturer=s name, brand designation, and contents legibly indicated. The containers shall bear the referenced specification number, type, and class as applicable.

B. Storage: Provide temporary storage facilities for products. Storage shall comply with the manufacturer=s instructions. The storage area shall permit access for inspection and handling.

C. Handling: Load and unload products protecting them from damage.

1.8 PROJECT/SITE CONDITIONS:

A. The project site is the Santa Ana National Wildlife Refuge. Work areas shall be roped off to alert unauthorized personnel to work in progress.

B. Existing property not indicated for demolition, shall be protected. All damage by

Contractor=s activities shall be repaired by the Contractor at no additional cost to the Government.

C. Safety is paramount. Contractor is responsible for safety on the project site and shall take measures to maintain a safe area around the project site which is used by Government employees and the public. Applicable OSHA regulations shall be adhered to by the Contractor. Contractor shall submit a safety plan prior to starting work.

D. Landscape Protection: Protect all vegetation inside and outside work limits. All rutting

GENERAL INFORMATION AND REQUIREMENTS 01009-4

caused by Contractor activities shall be filled and contoured to match adjacent areas.

Areas damaged by Contractor activities shall be repaired.

1.9 SEQUENCING AND SCHEDULING:

A bar chart type work schedule shall be submitted to the COTR within 5 days after the preconstruction conference. When requested, submit an updated schedule within 3 calendar days.

PART 2: PRODUCTS

2.1 TEMPORARY FACILITIES:

A. The Contractor shall provide portable toilet facilities at the construction site.

B. Water is available at the site for Contractor’s reasonable use.

C. Electric power is available at the site for Contractor’s reasonable use.

PART 3: EXECUTION

3.1 PROJECT MEETINGS:

A. Preconstruction Conference:

1. A preconstruction conference will be held prior to the start of work. The Contractor will be notified in advance of meeting time, date and place. The purpose of the meeting will be to review required work, project drawings and specifications, construction schedules, payroll, payments, and administrative provisions of the contract.

2. The Contractor, subcontractors and the persons responsible for coordination of the work shall be present at the meeting.

3. The Contractor shall submit a schedule of values within 5 days after the preconstruction conference, which may be used as a basis of payment as the work progresses.

GENERAL INFORMATION AND REQUIREMENTS 01009-5

B. Progress Meetings:

To be held at the project site as required.

C. Inspections:

1. Routine inspections will be performed by the government Contract Inspector (CI).

Inspection of items of work by the CI will not relieve the Contractor of the requirement to meet project specifications. The CI shall be informed 24 hours in advance of work requiring his observation. After being informed in advance the CI=s non-attendance shall not prohibit the Contractor from proceeding with work in the CI=s absence.

2. For final inspection, notify the COTR in writing at least 6 working days before the completion date so the Government can schedule final inspection. The superintendent shall be present during the final inspection.

3.2 DISPOSAL OF DEBRIS:

Demolition debris shall be removed from the project site and disposed of in a legal disposal site by the Contractor. Contractor shall pay all fees required for disposal.

3.3 AS-BUILT DRAWINGS:

A complete set of full-sized prints, furnished by the Contracting Officer for this purpose only, shall be kept by the Contractor. As the job progresses, continuously maintain as-built drawings of the work. The changes shall be noted legibly in red pencil or red ink.

These drawings shall be submitted to the COR prior to final inspection. Should final inspection reveal changes in the Project not so noted on the As-Built Drawings, the Contractor shall record these changes on the As-Built Drawings within 3 working days of

Final Inspection and deliver completed As-Built Drawings to the COTR.

3.4 WARRANTY:

A. All project construction shall be provided with a one-year warranty in accordance with

FAR 52.246-21.

B. With respect to warranties, expressed or implied, from manufacturers or suppliers for materials or equipment furnished under the contract, the Contractor shall:

GENERAL INFORMATION AND REQUIREMENTS 01009-6

1. Obtain the most favorable warranties that would be given by the Contractor in normal commercial practices, but in no case less than called for by the specifications.

2. Require warranties to be executed, in writing, for the benefit of the Government.

3. Submit warranties to the COR prior to the final inspection.

PART 4: MEASUREMENT AND PAYMENT

4.1 METHOD OF MEASUREMENT:

The work described in this section will not be measured for payment.

4.2 BASIS OF PAYMENT:

Payment will be made at the contract price, as indicated in the approved Schedule of Values and will include full compensation for the work described in the contract. Bids shall be made based on the following bid schedule:

Item Pay Unit

01009-Base 1 Re-roof Headquarters Building Lump Sum

END OF SECTION

SELECTIVE DEMOLITION 02070 - 1

SECTION 02070 - SELECTIVE DEMOLITION

PART 1: GENERAL

1.1 SUMMARY

A. This Section includes the following:

1. Demolition and removal of tree branches, skylights, and other materials necessary for the accomplishment of the work.

1.2 MATERIALS OWNERSHIP

A. Demolished materials shall become the property of the Contractor, and shall be removed from the project site and legally disposed of.

PART 2: PRODUCTS (NOT USED)

PART 3: EXECUTION

3.1 EXAMINATION

A. The Contractor shall visit the site and verify the extent and location of the demolition work required. Correlate with drawings and specifications.

3.2 PREPARATION

A. Protection:

1. Provide for the protection of persons passing around or through the area of demolition.

2. Perform demolition so as to prevent damage to adjacent improvements and facilities to remain.

3. Examine structural supporting conditions and report to the COR any conditions which vary from the drawings or for which unstable conditions may be created by Contractor’s activities.

3.3 DEMOLITION - GENERAL

SELECTIVE DEMOLITION 02070 - 2

A. Remove debris daily.

B. Perform selective demolition using methods which are least likely to damage work to remain and which will provide adequate structural support and proper surfaces for patching.

C Any areas not called out for demolition but damaged by Contractor activities shall be repaired by the Contractor to pre-existing conditions at no additional cost to the government.

3.4 CLEANING

A. Clean areas affected by demolition to conditions existing prior to the demolition.

END OF SECTION

POLYVINYL-CHLORIDE (PVC) ROOFING 075419 - 1

SECTION 075419 - POLYVINYL-CHLORIDE (PVC) ROOFING

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. Section Includes:

1. Adhered polyvinyl chloride (PVC) roofing system.

2. Substrate board.

3. Roof insulation.

1.3 DEFINITIONS

A. Roofing Terminology: Definitions in ASTM D1079 and glossary in NRCA's "The NRCA Roofing Manual: Membrane Roof Systems" apply to work of this Section.

1.4 PREINSTALLATION MEETINGS

A. Preliminary Roofing Conference: Before starting roof deck construction, conduct conference at Project site.

1. Meet with Owner, COR, Inspector, roofing Installer, and roofing system manufacturer's representative,.

2. Review methods and procedures related to roofing installation, including manufacturer's written instructions.

3. Review and finalize construction schedule, and verify availability of materials, Installer's personnel, equipment, and facilities needed to make progress and avoid delays.

4. Review deck substrate requirements for conditions and finishes, including flatness and fastening.

5. Review structural loading limitations of roof deck during and after roofing.

6. Review base flashings, special roofing details, roof drainage, roof penetrations, equipment curbs, and condition of other construction that affects roofing system.

7. Review temporary protection requirements for roofing system during and after installation.

8. Review roof observation and repair procedures after roofing installation.

1.5 SUBMITTALS

A. Product Data: For each type of product.

POLYVINYL-CHLORIDE (PVC) ROOFING 075419 - 2

1. For insulation and roof system component fasteners, include copy of FM Approvals' or RoofNav or SPRI's Directory of Roof Assemblies listing.

B. Shop Drawings: Include roof plans, sections, details, and attachments to other work, including the following:

1. Layout and thickness of insulation.

2. Base flashings and membrane terminations.

3. Flashing details at penetrations.

4. Tapered insulation thickness and slopes.

C. Wind Uplift Resistance Submittal: For roofing system, indicating compliance with wind uplift performance requirements.

D. Qualification Data: For Installer and manufacturer.

E. Manufacturer Certificates:

1. Performance Requirement Certificate: Signed by roof membrane manufacturer, certifying that roofing system complies with requirements specified in "Performance Requirements" Article.

a. Submit evidence of compliance with performance requirements.

2. Special Warranty Certificate: Signed by roof membrane manufacturer, certifying that all materials supplied under this Section are acceptable for special warranty.

F. Product Test Reports: For roof membrane and insulation, tests performed by independent qualified testing agency indicating compliance with specified requirements.

G. Evaluation Reports: For components of roofing system, from ICC-ES.

H. Field quality-control reports.

I. Sample Warranties: For manufacturer's special warranties.

1.6 CLOSEOUT SUBMITTALS

A. Maintenance Data: For roofing system to include in maintenance manuals.

B. Certified statement from existing roof membrane manufacturer stating that existing roof warranty has not been affected by Work performed under this Section.

1.7 QUALITY ASSURANCE

A. Manufacturer Qualifications: A qualified manufacturer that is UL listed, listed in FM Approvals' RoofNav, listed in SPRI's Directory of Roof Assemblies for roofing system identical to that used for this Project.

POLYVINYL-CHLORIDE (PVC) ROOFING 075419 - 3

B. Installer Qualifications: A qualified firm that is approved, authorized, or licensed by roofing system manufacturer to install manufacturer's product and that is eligible to receive manufacturer's special warranty.

1.8 DELIVERY, STORAGE, AND HANDLING

A. Deliver roofing materials to Project site in original containers with seals unbroken and labeled with manufacturer's name, product brand name and type, date of manufacture, approval or listing agency markings, and directions for storing and mixing with other components.

B. Store liquid materials in their original undamaged containers in a clean, dry, protected location and within the temperature range required by roofing system manufacturer. Protect stored liquid material from direct sunlight.

1. Discard and legally dispose of liquid material that cannot be applied within its stated shelf life.

C. Protect roof insulation materials from physical damage and from deterioration by sunlight, moisture, soiling, and other sources. Store in a dry location. Comply with insulation manufacturer's written instructions for handling, storing, and protecting during installation.

D. Handle and store roofing materials, and place equipment in a manner to avoid permanent deflection of deck.

1.9 FIELD CONDITIONS

A. Weather Limitations: Proceed with installation only when existing and forecasted weather conditions permit roofing system to be installed according to manufacturer's written instructions and warranty requirements.

1.10 WARRANTY

A. Special Warranty: Manufacturer agrees to repair or replace components of roofing system that fail in materials or workmanship within specified warranty period.

1. Special warranty includes roof membrane, base flashings, roof insulation, substrate board, and other components of roofing system.

2. Warranty Period: 20 years from date of Substantial Completion.

B. Government 1 Year Warranty: See Contract documents.

PART 2 - PRODUCTS

2.1 PERFORMANCE REQUIREMENTS

A. General Performance: Installed roofing and base flashings shall withstand specified uplift pressures, thermally induced movement, and exposure to weather without failure due to

POLYVINYL-CHLORIDE (PVC) ROOFING 075419 - 4

defective manufacture, fabrication, installation, or other defects in construction. Roof system and flashings shall remain watertight.

1. Accelerated Weathering: Roof membrane shall withstand 2000 hours of exposure when tested according to ASTM G152, ASTM G154, or ASTM G155.

2. Impact Resistance: Roof membrane shall resist impact damage when tested according to ASTM D3746, ASTM D4272/D4272M, or the "Resistance to Foot Traffic Test" in FM Approvals 4470.

B. Material Compatibility: Roofing materials shall be compatible with one another and adjacent materials under conditions of service and application required, as demonstrated by roof membrane manufacturer based on testing and field experience.

C. Wind Uplift Resistance: Design roofing system to resist the following wind uplift pressures when tested according to FM Approvals 4474, UL 580, or UL 1897:

1. Zone 1 (Roof Area Field): Per ASCE/SEI 7 as calculated by Contractor or roofing manufacturer for the geographic site.

2. Zone 2 (Roof Area Perimeter): Per ASCE/SEI 7 as calculated by Contractor or roofing manufacturer for the geographic site.

3. Zone 3 (Roof Area Corners): Per ASCE/SEI 7 as calculated by Contractor or roofing manufacturer for the geographic site.

D. FM Approvals' RoofNav Listing: Roof membrane, base flashings, and component materials shall comply with requirements in FM Approvals 4450 or FM Approvals 4470 as part of a roofing system, and shall be listed in FM Approvals' RoofNav for Class 1 or noncombustible construction, as applicable. Identify materials with FM Approvals Certification markings.

1. Fire/Windstorm Classification: Class 1A-105.

2. Hail-Resistance Rating: FM Global Property Loss Prevention Data Sheet 1-34 SH –

Severe Hail.

E. SPRI's Directory of Roof Assemblies Listing: Roof membrane, base flashings, and component materials shall comply with requirements in FM Approvals 4450 or FM Approvals 4470 as part of a roofing system, and shall be listed in SPRI's Directory of Roof Assemblies for roof assembly identical for that specified for this Project.

1. Wind Uplift Load Capacity: 105 psf.

F. ENERGY STAR Listing: Roofing system shall be listed on the DOE's ENERGY STAR "Roof Products Qualified Product List" for low slope roof products.

G. Energy Performance: Roofing system shall have an initial solar reflectance of not less than 0.70 and an emissivity of not less than 0.75 when tested according to CRRC-1.

H. Exterior Fire-Test Exposure: ASTM E108 or UL 790, Class B minimum, for application and roof slopes indicated; testing by a qualified testing agency. Identify products with appropriate markings of applicable testing agency.

POLYVINYL-CHLORIDE (PVC) ROOFING 075419 - 5

I. Fire-Resistance Ratings: Comply with fire-resistance-rated assembly designs indicated. Identify products with appropriate markings of applicable testing agency.

2.2 POLYVINYL CHLORIDE (PVC) ROOFING

A. PVC Sheet: ASTM D4434/D4434M, Type meeting performance requirements and compatible with proposed system and existing conditions.

1. Thickness: 60 mils or thicker to meet performance requirements.

2. Exposed Face Color: White.

B. Source Limitations: Obtain components for roofing system from [roof membrane manufacturer or manufacturers approved by roof membrane manufacturer.

2.3 AUXILIARY ROOFING MATERIALS

A. General: Auxiliary materials recommended by roofing system manufacturer for intended use and compatible with other roofing components.

1. Adhesives and Sealants: Comply with VOC limits of authorities having jurisdiction.

B. Sheet Flashing: Manufacturer's standard sheet flashing of same material, type, reinforcement, thickness, and color as PVC sheet.

C. Prefabricated Pipe Flashings: As recommended by roof membrane manufacturer.

D. Roof Vents: As recommended by roof membrane manufacturer.

E. Bonding Adhesive: Manufacturer's standard[, water based].

F. Water-Based, Fabric-Backed Membrane Adhesive: Roofing system manufacturer's standard water-based, cold-applied adhesive formulated for compatibility and use with fabric-backed membrane roofing.

G. Low-Rise, Urethane, Fabric-Backed Membrane Adhesive: Roof system manufacturer's standard spray-applied, low-rise, two-component urethane adhesive formulated for compatibility and use with fabric-backed membrane roofing.

H. Slip Sheet: ASTM D2178/D2178M, Type IV, glass fiber, asphalt-impregnated felt.

I. Slip Sheet: Manufacturer's standard, of thickness required for application.

J. Metal Termination Bars: Manufacturer's standard, predrilled stainless steel or aluminum bars, approximately 1 by 1/8 inch thick; with anchors.

K. Miscellaneous Accessories: Provide pourable sealers, preformed cone and vent sheet flashings, preformed inside and outside corner sheet flashings, T-joint covers, lap sealants, termination reglets, and other accessories.

POLYVINYL-CHLORIDE (PVC) ROOFING 075419 - 6

2.4 SUBSTRATE BOARDS

A. Substrate Board: As part of the approved roofing system meeting Performance Requirements including SH Severe Hail Rating.

2.5 ROOF INSULATION

A. General: Preformed roof insulation boards manufactured or approved by PVC roof membrane manufacturer, approved for use in FM Approvals' RoofNav listed roof assemblies or approved for use in SPRI's Directory of Roof Assemblies listed roof assemblies.

2.6 INSULATION ACCESSORIES

A. General: Roof insulation accessories recommended by insulation manufacturer for intended use and compatibility with other roofing system components.

B. Insulation Adhesive: Insulation manufacturer's recommended adhesive formulated to attach roof insulation to substrate or to another insulation layer as per the approved roofing system assembly and meeting all Performance Specifications.

PART 3 - EXECUTION

3.1 EXAMINATION

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

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

3.2 PREPARATION

A. Clean substrate of dust, debris, moisture, and other substances detrimental to roofing system installation according to roofing system manufacturer's written instructions. Remove sharp projections.

B. Prevent materials from entering and clogging roof drains and conductors and from spilling or migrating onto surfaces of other construction. Remove roof-drain plugs when no work is taking place or when rain is forecast.

3.3 INSTALLATION OF ROOFING, GENERAL

A. Install roofing system according to roofing system manufacturer's written instructions, and listed roof assembly requirements.

POLYVINYL-CHLORIDE (PVC) ROOFING 075419 - 7

B. Complete terminations and base flashings and provide temporary seals to prevent water from entering completed sections of roofing system at end of workday or when rain is forecast.

Remove and discard temporary seals before beginning work on adjoining roofing.

C. Install roof membrane and auxiliary materials to tie in to existing roofing to maintain weathertightness of transition.

3.4 INSTALLATION OF SUBSTRATE BOARD

A. Install substrate board with long joints in continuous straight lines, with end joints staggered not less than 24 inches in adjacent rows.

1. Install with manufacturer’s approved adhesive and per approved system meeting Performance Requirements. .

2. Tightly butt substrate boards together.

3. Cut substrate board to fit tight around penetrations and projections, and to fit tight to intersecting sloping roof decks.

3.5 INSTALLATION OF INSULATION

A. Coordinate installing roofing system components so insulation is not exposed to precipitation or left exposed at end of workday.

B. Comply with roofing system and insulation manufacturer's written instructions for installing roof insulation.

3.6 INSTALLATION OF ADHERED ROOF MEMBRANE

A. Adhere roof membrane over area to receive roofing according to roofing system manufacturer's written instructions.

B. Unroll roof membrane and allow to relax before installing.

C. Start installation of roofing in presence of roofing system manufacturer's technical personnel.

D. Accurately align roof membrane, and maintain uniform side and end laps of minimum dimensions required by manufacturer. Stagger end laps.

E. Bonding Adhesive: Apply to substrate and underside of roof membrane at rate required by manufacturer, and allow to partially dry before installing roof membrane. Do not apply to splice area of roof membrane.

F. Fabric-Backed Roof Membrane Adhesive: Apply to substrate at rate required by manufacturer, and install fabric-backed roof membrane.

G. Apply roof membrane with side laps shingled with slope of roof deck where possible.

POLYVINYL-CHLORIDE (PVC) ROOFING 075419 - 8

H. Seams: Clean seam areas, overlap roofing, and hot-air weld side and end laps of roof membrane and sheet flashings to ensure a watertight seam installation.

1. Test lap edges with probe to verify seam weld continuity. Apply lap sealant to seal cut edges of roof membrane and sheet flashings.

2. Verify field strength of seams a minimum of twice daily, and repair seam sample areas.

3. Repair tears, voids, and lapped seams in roof membrane that do not comply with requirements.

I. Spread sealant bed over deck-drain flange at roof drains, and securely seal roof membrane in place with clamping ring.

3.7 INSTALLATION OF BASE FLASHING

A. Install sheet flashings and preformed flashing accessories, and adhere to substrates according to roofing system manufacturer's written instructions.

B. Apply bonding adhesive to substrate and underside of sheet flashing at required rate, and allow to partially dry. Do not apply to seam area of flashing.

C. Flash penetrations and field-formed inside and outside corners with cured or uncured sheet flashing.

D. Clean seam areas, overlap, and firmly roll sheet flashings into the adhesive. Hot-air weld side and end laps to ensure a watertight seam installation.

E. Terminate and seal top of sheet flashings and mechanically anchor to substrate through termination bars.

3.8 FIELD QUALITY CONTROL

A. Final Roof Inspection: Arrange for roofing system manufacturer's technical personnel to inspect roofing installation on completion, in presence of Architect, and to prepare inspection report.

B. Repair or remove and replace components of roofing system where inspections indicate that they do not comply with specified requirements.

C. Additional testing and inspecting, at Contractor's expense, will be performed to determine if replaced or additional work complies with specified requirements.

3.9 PROTECTING AND CLEANING

A. Protect roofing system from damage and wear during remainder of construction period. When remaining construction does not affect or endanger roofing, inspect roofing system for deterioration and damage, describing its nature and extent in a written report, with copies to Architect and Owner.

POLYVINYL-CHLORIDE (PVC) ROOFING 075419 - 9

B. Correct deficiencies in or remove roofing system that does not comply with requirements, repair substrates, and repair or reinstall roofing system to a condition free of damage and deterioration at time of Substantial Completion and according to warranty requirements.

C. Clean overspray and spillage from adjacent construction using cleaning agents and procedures recommended by manufacturer of affected construction.

END OF SECTION 075419

2. Special Warranty Certificate: Signed by roof membrane manufacturer, certifying that all materials supplied under this Section are acceptable for special warranty.

B. Government 1 Year Warranty: See Contract documents.

B. Source Limitations: Obtain components for roofing system from [roof membrane manufacturer or manufacturers approved by roof membrane manufacturer.

I. Spread sealant bed over deck-drain flange at roof drains, and securely seal roof membrane in place with clamping ring.