RELATED DOCUMENTS: Drawings and general provisions of Contract, including General and supplementary conditions and Division-1 Specification sections, apply to work of this section.

DESCRIPTION OF WORK:

1. Extent of Acrylic Coating system work is shown on drawings and specified herein.

SCOPE (WORK SPECIFIED HEREIN)

1. All labor, materials, transportation, storage facilities, equipment and services necessary to furnish and install spray applied waterproofing and protection systems, including all accessories and devices necessary to complete the roof coating as indicated and specified.

SUBSTITUTIONS:

1. It is not the intent of the specifications to have any proprietary products. Their intent is to establish a level of quality and set forth minimum standards for the products desired, such as a performance specification.
   
2. If a manufacturer or product is not listed by name within a section of the specifications, the manufacture must obtain prior approval from the Architect before that product will be allowed for use on the project.
   
3. If the Architect prior approves a manufacturer or product, the manufacturer will be considered as a listed manufacturer and will assume all the listed responsibilities that a listed manufacturer has.

SUBMITTALS/QUALIFICATIONS:

1. General: Submittal requirements are specified in Section 01300-Submittals.
   
2. Submit evidence that bidders are qualified and manufacturer.
   
3. Submit evidence that system constituents are non-coal, non-asphaltic, are V.O.C. compliant and environmentally safe.

QUALITY ASSURANCE:

1. Pre-Application Roofing Conference: Approximately two weeks prior to installation of roof deck, meet at project site with installers of deck or substrate construction to receive roofing work, installers of roof-top units and other work in and around roofing which must precede or follow roofing work (including mechanical work if any), Architect, Owner, roofing system manufacturer’s representative, and other representatives directly concerned with performance of the work. Record agreements or disagreements reached and furnish a copy of records to each party attending. Review foreseeable methods and procedures related to roofing work, including, but not limited to the following:

1. Tour representative areas of roofing substrates (decks), inspect and discuss condition of substrate, roof drains, curbs, penetrations and other preparatory work performed by other trades.
2. Review structural loading limitations of steel deck and inspect deck for loss of flatness and for required mechanical fastening.
3. Review roofing system requirements (drawings, specifications and other contract documents).
4. Review and finalize construction schedule related to roofing work and verify availability of materials, installer’s personnel, equipment and facilities needed to make progress and avoid delays.
5. Review required inspection, testing, certifying and material usage accounting procedures.
6. Review weather and forecasted weather conditions, and procedures for coping with unfavorable conditions, including possibility of temporary roofing (if not a mandatory requirement).

2. Manufacturer Qualifications:

1. Manufacturer shall be a basic producer of Polyurethane Foam roofing materials.
2. Manufacturer shall have demonstrated commitment to the roofing profession by membership in one or more of the following professional organizations:
   1. Polyurethane Foam Contractors Division (PFCD) of SPI.
   2. Roof Consultant Institute, (RCI) - Associate Member.
   3. Western States Roofing Contractors Association, (WSRCA).
   4. National roofing Contractors Association, (NRCA).
   5. Arizona Roofing Contractors Association (ARCA).
      
3. Contractor Qualifications:

1. Contractor shall be certified in writing by Polyurethane Foam supplier prior to commencement of work.
2. Contractor shall have demonstrated commitment to the roofing profession by membership in one or more of the following professional organizations:
   1. Polyurethane Foam Contractors Division (PFCD) of SPI.
   2. National roofing Contractors Association, (NRCA).
   3. Arizona Roofing Contractors Association (ARCA).
   4. Contractor Accreditation by the Polyurethane Foam Contractors Division (PFCD) of SPI is strongly encouraged.
3. Prior experience in handling and spraying Polyurethane Foam of the type specified and possessing a thorough knowledge in the use of the required spray equipment.
4. Approved by the protective coating manufacturer for single component system and shall qualify for all warranty programs offered by coating manufacturer.

4. Composite roof covering must be tested and pass per UL 790 Criteria.
   
5. Yearly inspections during the duration of the guarantee shall be provided to owner by the
   waterproofing coating representative at a designated time by the owner and the contractor.

WARRANTY

1. Furnish to the Owner a standard five (5) or ten (10) year manufacturer warranty depending on application. To include entire combined foam/coating system.

SUBMITTALS:

1. Product Data: Submit manufacturer’s technical product data, installation and maintenance instructions, and written recommendations for roofing work. Include data indicating that the materials comply with all code and manufacturer system requirements.
   
2. Aggregates and protective coating s shall be processed and applied, using only that equipment specifically designed for application.
   
3. All materials shall be stored and protected from excessive heat and cold, in accordance with materials manufacturer’s instructions.
   
4. Provide verification that products approved are products installed on the job.
   
5. Deliver materials to site in manufactures original unopened packages with labels intact.

INSPECTIONS:

1. Manufacturer’s representative is to provide a “pre-project inspection report” prior to any work commencing.
   
2. At the completion of the roofing project, manufacturer’s representative is to provide a “Completed Project” inspection report.
   
3. Roofing Contractor shall assume responsibility for acceptance of substrate by application of the roofing.

PRIMER:

1. Shall be manufacturer recommended and applied at a rate of 300 square feet per gallon. Priming materials and quantities shall be provided per manufacturer’s recommendations.

MATERIALS:

1. Protective Coating: Pro-Tech Products, Inc. Superior Seal is manufactured with 100% acrylic, meeting the following physical and performance properties. Coating must be CRRC rated.
   
   1. Elongation
      1. Initial Elongation @ 73˚ F D-2370 = 400% Tensile
   2. Tensile Strength
      1. Tensile Strength @ 73˚ F D-2370 = 200 PSI
   3. Permeance D-471 = 3.0 perms
   4. Fungi Resistance G-21 = zero
   5. Tear Resistance D-624 = 63.041 BF
   6. Low Temp Flexibility (after aging) D-522 = Pass 1 ” mandrel bend.
   7. Weathering (1000 hrs xenon) = Pass no cracking or checking.
   8. U/V Reflectance E-903 = 85%
   9. Solids by Weight (calculated by formula) = 68%
   10. Solids by Volume (as tested) = 56%
   11. Weight per Gallon = 11.5 lbs
   12. Viscosity (CPS) = approx. 10,000
   13. Clean-up = water
   14. Re-Coat Time (hrs.) = Normally 4-8 hours
       

*** CRRC Rated Product – ID# 0750-003***

Solar Reflectance .85
Thermal Emittance .88

FLASHINGS AND EXPANSION JOINTS

1. Sheet Metal Flashings: In accordance with Section 07600
   
2. Sealants: In accordance with Section 07600
   
3. Adhesives, Sealant, Metals, Vents and Drains or any composite part of the roof systems shall be those recommended by the systems manufacturer.
   
4. Flashings and waterproof coverings for expansion joints shall be compatible with specified Polyurethane insulation and elastomeric coating system and recommended by the manufactures of the systems used.

EQUIPTMENT

1. Other Equipment: Contractor shall have at all times in close proximity to the spraying
   operation sufficient containers to counteract any equipment problem without depositing any
   defective material on the deck or on the site.

EXAMINATION

1. Verification of Conditions: Examine subsurface to receive work and report detrimental conditions in writing to architect.
   
   1. Prior to the application of any roofing materials, the Contractor shall examine the roof deck, flashings, and other surfaces that are to receive roofing materials to ensure that surfaces are true, even, dry, clean and in proper condition to receive the roofing system.
   2. All penetrations through roofing including drains, scuppers, miscellaneous pipe and vent penetrations, and electrical conduits shall be completed prior to the commencement of work.
   3. The Contractor shall report in writing to the Owner any condition not to the Contractor’s satisfaction prior to proceeding with the work of this section.
   4. Application of roofing material shall constitute the roofing Contractor’s acceptance of surfaces and flashing to receive the materials.
      
2. Commencement of work will be construed as acceptance of subsurfaces.
   
3. Coordination: Coordinate with other work or trades, which affects, connects with or will be concealed by this work.

PREPARATION

1. Notify the owner’s representative and visitors to the site of potential fugitive overspray.
   
2. Cars, etc., will be moved or covered to prevent inadvertent spraying. Contractor shall coordinate subcontractor traffic during roof operations.
   
3. Provide all barricades as required and place them in a way to be considered by all parties in an adequate and sufficient number so that there is no doubt that the area is completely barricaded off.
   
4. Use appropriate barricading methods to shelter walking traffic from the work area’s equipment and overspray.
   
5. Any damage caused during this construction process shall be restored to pre-project condition or replaced at the Contractor’s expense in accordance with section 01010.
   
6. Provide protective covering as needed to protect building walls, adjacent structures and vegetation, etc., from the effects of the spraying process.
   
7. When work is finished, no evidence of re-roofing shall be visible from the ground level, other than the work on the roofing plane.

APPLICATION

1. Protective Coating:

1. Preparation:
   
   1. Surface to be coated shall be completely free of any grease, oil, dirt or other contaminates which will interfere with proper coating adhesion.
      
   2. Surfaces shall be completely dry and frost-free before coating.
      
2. Waterproofing Protective Coating System:
   
   1. Fluid Applied Waterproofing

   (1)	Spray apply elastomeric membrane over roof substrate at a rate of 1 1/2 gallons per 100 square feet in one application on all surfaces. Use contrasting color to final topcoat.
   (2)	Spray apply final application of elastomeric membrane over insulation at 1 1/2 gallons per 100 square feet, excluding aggregate. The coating shall be an average dry film thickness of 25 mils.

   2. No traffic shall be permitted on completed roof surface for a minimum of three (3) days.
      
3. Milage
   
   1. Millage testing should be performed during spray application using wet film gauge and mathematical volume solids equation to determine dry film thickness..