Acrylabs - Renewable Roof Systems and Wall Coating Products

Guideline Specification

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SECTION 07560
(Fluid Applied Roofing)

 

Acrylabs PUF30

10-Year Warranty System

Partially Reinforced Elastomeric System for PUF (Polyurethane Foam) Roofs

 

PART 1 – GENERAL

 

1.01 SUMMARY

 

A. Summary Includes: This summary includes a fluid applied partially reinforced elastomeric composite membrane system. It is designed for weatherproofing and protection of existing metal roofs.

 

B. Section Includes: Partially reinforced elastomeric membrane system, complete with surface preparation with all flashing and other related work required to perform a complete installation of the Acrylabs system. This system will yield a min 30 mil membrane throughout the field of the roof, and a min. of 50 mil membrane at the reinforced areas.

 

1.02 REFERENCES

 

A. American Society for Testing and Materials (ASTM) 1998 Annual Book of ASTM Standards

    1. Designation : D6083-97a Standard Specification for Liquid Applied Acrylic Coating Used in Roofing
    2. Volume 06.01 Paint - Tests for Chemical, Physical, and Optical Properties; Appearance

B. National Roofing Contractors Association (NRCA)

    1. Roofing and Waterproofing Manual (4th Edition)

C. Sheet Metal and Air Conditioning National Contractors Association (SMACNA)

    1. Architectural Sheet Metal Manual 5th Edition 1993

D. Society for Protective Coatings (SSPC)

    1. Steel Structures Painting Manual, Volume 2, Systems and Specifications 1995

E. Society for Protective Coatings (SSPC)

    1. Steel Structures Painting Manual, Volume 2, Systems and Specifications 1995.

 

1.03 SYSTEM DESCRIPTION

 

A. Performance Requirements:

    1. Provide fluid applied reinforced elastomeric composite membrane system to maintain manufacturers' performance criteria without defects, damage, failure, or infiltration of water.

    2. Coatings to be used in the membrane system shall meet or exceed all minimum testing requirements listed in ASTM D-6083 Standard Specification for Liquid Applied Acrylic Coatings Used in Roofing.

 

1.04 SUBMITTALS

 

A. Product Data: Provide written technical information and installation instructions from Acrylabs which demonstrate that materials to be installed comply with contract documents.

B. Submit shop drawings indicating details showing treatment of transitions, edges, closures, penetrations, etc.

C. Verify field measurements and submit materials list, including quantities, to be applied to achieve specified membrane thickness.

D. Submit 2-year contractor warranty against leaks and/or defects in workmanship. Upon notification of any such defects, within the first 2 years, the contractor will make the necessary repairs. Warranty shall be signed by an authorized representative of the contractor.

E. Submit written verification that the existing roof drain lines are reasonably free of obstruction prior to application of Acrylabs products.

F. Submit Acrylabs standard Material Safety Data Sheets (MSDS) documents.

 

 

1.05 QUALITY ASSURANCE

 

A. Applicator Qualifications: Applicator who has proven experience in the installation of work similar to that required for this project for a period of 5 years or more.

    1. Certificate: When requested, submit certificate indicating applicator qualifications.

    2. Completed project reference list: When requested, submit a list of three (3) projects of similar nature using products of the type specified herein. List shall include the following: Project name and location, size, cost, contact person and phone number.

    B. All details must be installed in conformance with the current Acrylabs specifications and detail drawings. For conditions not addressed by Acrylabs the reference guide for application and detailing shall be:

    1. National Roof Contractors Association (NRCA) Manual, Third Edition.
    2. Sheet Metal and Air Conditioning Contractors National Association (SMACNA) Architectural Sheet Metal Manual 5th Edition 1993.

     

    C. Final inspection by an authorized representative of Acrylabs is required for warranty. Final inspection shall not replace the normal responsibilities of the contracting parties. Request for final inspections must be forwarded along with a roof plan, to Acrylabs upon substantial completion of the project. Any deviations from Acrylabs specifications must be noted on the roof plan drawing.

    D. Provide all primers,base coats, fabric and accessories as manufactured and/or approved in writing by Acrylabs..

     

1.06 DELIVERY, STORAGE AND HANDLING

 

A. Furnish Acrylabs coating system materials and component accessories in manufacturer's original containers and/or wrapped bundles, clearly indicating the Acrylabs label and other identifying information.


B. Store materials separated from the ground and in a dry location, protected until installation in accordance with Acrylabs instructions.


C. Handle materials in accordance with Acrylabs recommendations.


D. Protect materials against freezing. Store materials between 50ºF and 85ºF.

 

1.07 PROJECT CONDITIONS

 

A. Acceptable Substrates: Acceptable substrates for the PR30 System shall be the following: PUF roofs and most single ply roof systems.

 

B. Substrate: After the existing roof systems are cleaned and repaired, as required, but prior to starting new coating system installation work, complete all substrate corrective installation actions required. Substrate shall be smooth, dry, and free of debris.

 

1.08 ENVIRONMENTAL CONDITIONS

 

A. It is the responsibility of the applicator to determine if present and forecast weather conditions are acceptable for application of Acrylabs coatings.

 

B. Do not apply Acrylabs coatings when snow, rain, fog or freezing temperatures are possible within 24 hours after application.

 

C. Do not apply coatings when the temperature of surfaces to be coated and/or surrounding air temperatures are less than 45º F.

 

D. Do not apply Acrylabs coatings when the dew point can be reached before the coatings have sufficiently dried or cured. Special consideration must be given during spring and autumn applications for rapid temperature changes near sunset, shortened workdays may be required.

 

E. Allow wet surfaces to dry thoroughly and to attain temperature and conditions specified before proceeding with or continuing coating operation.

 

F. Wind conditions must be considered during application of products to avoid damage to adjacent surfaces or completed work. Provide for protection of other surfaces or do not spray apply coatings if overspray will be deposited on surfaces not intended to be coated.

 

 

1.09 SAFETY REQUIREMENTS


A. Users should familiarize themselves with appropriate Material Safety Data Sheets (MSDS). MSDS must be available at all worksites where materials are being used.

B. Materials shall be applied in accordance with all applicable local, state, and federal regulations.


C. A respirator should be used when spraying Acrylabs coatings to protect applicators from overspray particles.


D. When applying reflective white coatings to a roof, sunglasses should be used to protect eyes from glare.


E. Handle on pails should only be used to carry pail when on ground or roof and should not be used to hoist pail from ground to roof.


F. Translucent light panels should be clearly marked and safely protected from foot traffic.


G. All work shall be performed in conformance with the safety procedures outlined in the current FALL PROTECTION GUIDE as published by the Occupational Safety and Health Administration (OSHA).


H. Care should be taken to avoid overhead powerlines and arcing potential.

 

1.10 WORK SEQUENCE


A. Sequence of operations is at the Contractor's option providing it is arranged to maintain the building dry during the life of the Contract. Schedule and execute work to prevent leaking.


B. The building shall be occupied. Do not disrupt activities in occupied spaces.

 

1.11 WARRANTY


A. Furnish specified Acrylabs Warranty.

B. Furnish contractor 2-year warranty. The conditions of the contractor warranty may vary, however the occurrence of leaks caused by defects in workmanship will be remedied at no cost to the building owner according to provisions of the contractor warranty.

 

 

PART 2 – PRODUCTS

 

2.01 FLUID APPLIED PARTIALLY REINFORCED COMPOSITE MEMBRANE SYSTEM


A. Manufacturer: Acrylabs
101 North Prospect St
  Reading, PA
     
1.  Contact 
   
  Address 101 North Prospect St
    Reading, PA 19606
  Phone (866) 273-1355
 
Fax
(610) 273-1357
E-mail
  Website www.acrylabs.com
     
B. Substitutions: None

 

2.02 MATERIALS

A. Acrylabs PR30 System shall include but not be limited to:

1.
Foam Repair Kit
TNF Pro System 600
2,
Base Coat
Acrylabs 2100B
3. Finish Coat

Acrylabs 2100H.T.

4. Polyester Reinforcing Fabric Acrylabs Mesh 2000
5.
Elastomeric Brush Grade
Acrylabs 2400

 

B. Acrylabs Minimum Material Properties

    1. Elastomeric Coatings – Elastomeric coatings shall be water-dispersed 100% acrylic elastomeric coatings designed for use in reinforced composite membrane systems. Materials shall meet the following minimum specifications:

    Liquid Coating Property Requirements 2100B and 2100H.T.

Solids by Weight
 
Minimum
ASTM
Weight Per Gallon
12.0 lbs.
D-1475
Solids by Weight
67%
D-1644-A
Solids by Volume
53%
D-2697
Viscosity
125 - 140 KU
D-562-A
Cured Film Physical Property Requirements 2100B

and 2100H.T.
 
Minimum
ASTM Standard
Low Temperature Flexibility
pass
C-734
@ -15º F
   
Elongation at break
D-412
@74º F
300%  
@0º F
130%  
Tensile Strength at break
D-412
@74º F
235 psi  
@0º F
690psi  
Permeability (20 mil film) 
<10 perms
E-96-80
@73.4º F
   
Accelerated weathering 
2 years-no effect
G-53
Fungi Resistance Zero rating  
     
Cured Film shall also pass Rain Permeability testing according to
ETP-1375, Mil-Std-810E, Method 506.3, Proc.III

2. Reinforcement Fabric – Stitch-bonded polyester for use in cold fluid applied roof membranes that shall provide high strength and good elongation.

Mesh 2000 Fabric (Average typical properties)

Average
ASTM Standard
Tensile strength
57.1%
D-1682
Elongation
61.65%
D-1682

2.03 APPLICATION EQUIPMENT

 

A. Acrylabs coatings shall be applied by brush, roller, or spray. When applied by spray it is recommended that an airless spray be used. Application by roller or brush may require additional coats, but material requirements will remain the same. In all cases, the specified minimum membrane thickness must be achieved.

 

2.04 RELATED MATERIALS

 

A. Metal Roof Panels:

    1. New metal roof panels shall be as per requirements of project.

B. Roof Flashing:

    1. Gable end flashing, drip edge, gutters, counterflashings, copings, pipe collars, valleys, hip and ridge vents and caps as per requirements of project.

C. Closures

    1. Neoprene or other compressible filler shaped to fill voids.

D. Translucent Light Panel

    1. . Fiberglass
    2. Wire Glass
    3. Resolite (TM)

E. Mechanical Fasteners

    1. Type as required by project

F. Sealant (Silicone sealants unacceptable)

    1. Polyurethane
    2. Polysulfide

    3. Acrylic

G. Polyurethane Foam

    1. Expanding polyurethane foam of a type suitable for roofing applications.

PART 3 - EXECUTION

3.01 MANUFACTURERS INSTRUCTIONS

 

A. Compliance: Comply with Acrylabs product data, recommendations, and installation instructions for substrate verification, preparation requirements, and installation.

3.02 EXAMINATION OF SURFACE

A. Examine the substrates, flashing conditions, penetrations, equipment supports, curbs, adjoining construction and the conditions under which the work is to be installed. Do not proceed with the work until unsatisfactory conditions have been corrected.

B. Applicator shall be responsible for providing a proper substrate to receive the  
Acrylabs roofing system.


C. Verify that substrate is dry and free of oil, grease, dust, rust, or other contaminant.

D. Defects in substrate shall be noted and work shall not proceed until such defects have been corrected.

 

3.03 PREPARATION


A. Do not proceed with installation until projections through the Acrylabs membrane such as piping, drains, conduit, vents and ducts have been installed. Holes, open panel ends and voids under "non venting" ridge caps shall be patched or filled and finished flush in accordance with Acrylabs instructions.

B. Substrate: Prior to starting new coating system installation work, complete all substrate corrective installation actions required. Substrate shall be smooth, dry, and free of debris.

 

C. Areas where foam has been comprised must be repaired with TNF Pro System 600 or similar. Consult Acrylabs for complete information on treatment of polyurethane foam.:

    D. The roof must be completely free of dust, dirt, oil, debris, or other contaminants before application of Acrylabs coatings or sealants.  If any contaminants are found, they must be removed by appropriate means.

    E. Complete all work above roof as required by other trades.

     

3.04 INSTALLATION


A. Following inspection and acceptance of substrate condition, install the Acrylabs PR30 Roof Coating System using minimum coverages indicated in the manufacturer's guidelines. Adherence to guidelines will yield a minimum membrane thickness of 30 mils dry film thickness (dft.) on the field of roof and a minimum of 45 mils dft. on the reinforced areas.


B. Apply flashings at roof penetrations and detail work:

    1. All flashings must be completed in accordance with published Acrylabs details before final application of 2100H.T. Finish.
    2. Apply heavy coat of 2100B to the area to be flashed, and embed.
    3. MESH 2000 reinforcement fabric into wet coating.
    4. Brush shall be used to ensure that MESH 2000 is fully embedded.
    5. Apply additional coating to the top of fabric taking care to completely saturate fabric and provide a weatherproof seal.

C. Seams: All penetrations requiring treatment shall be treated with 2100B and MESH 2000 Reinforcement Fabric of appropriate width to create a reinforced elastomeric membrane. Subsequent top coats will be applied to these treated areas to provide a minimum membrane thickness of 45 mils (dft).

    1. All areas to be reinforced must be completed in accordance with published Acrylabs details before final application of 2100H.T. Finish Coatings.

    2. Reinforcement Fabric into wet coating.
      1. Brush shall be used to ensure that MESH 2000 is fully embedded.
      2. Apply additional coating to the top of fabric taking care to completely saturate fabric and provide a weatherproof seal.

D. Apply 2100B coatings to entire prepared roof surface at a minimum rate of 1.25 gallons per 100 square feet to produce a membrane of 10 mils minimum dry film thickness on the field of the roof.


E. Apply 2100H.T. at a minimum rate of 1.25 gallons per 100 square feet to areas previously coated to produce a total minimum dry film thickness including the previously applied 2100B of 20 mils.


F. Apply final coat of 2100H.T. at a minimum rate of 1.25 gallons per 100 square feet to produce a total minimum dry film thickness including the previously applied coating to produce a total minimum dry film thickness of 30 mils.


Note: Each application of coatings should be applied at right angles to the previous coat in a "cross-hatch pattern. Applicator shall guarantee proper membrane thickness according to specification.  

3.05 FIELD QUALITY REQUIREMENTS


A. Verify final minimum film thickness as specified. If specified dry film thickness has not been achieved, application of additional coating will be required.


B. Visually inspect critical areas of the roof including roof seams and penetrations and touch up with additional Acrylabs coatings to ensure complete coverage.

 

3.06 FINAL CLEANING


A. Except as otherwise provided for, remove temporary protection devices and facilities which were installed during the course of the work.


B. Clean job site, sweep paved areas, and rake clean other surfaces of roofing debris.


C. Remove waste, surplus materials and rubbish.


D. All soiled surfaces shall be cleaned using approved materials and methods.

 

3.07 PROTECTION


A. Protect completed membrane from damage by work of other trades. Schedule sequence of work so that traffic over new membrane is minimized. Institute requires procedures for protection of completed membrane during installation of work from other trades throughout remainder of the construction period. Do not allow traffic of any type on unprotected membrane.


B. At completion of construction activities of other trades, touch-up and restore damaged or defaced coated surfaces.
 

END OF SECTION


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