ROOF COATING RESTORATION (RCR) SYSTEM OVER METAL ROOF PANEL

As recommended by Progressive Materials

SILICONE ROOF COATING RESTORATION (RCR) SYSTEM
OVER METAL ROOF PANEL
Part 1. General Conditions
1.1 Description
A. Scope of Work
Provide all materials, labor and equipment required for the installation of the RCR System over the
existing modified bitumen or smooth surface buit-up roof including all ancillary products.
B. Related Work
1. Perform Moisture Survey
2. Replace WetInsulation
3. Repair All Sheet Metal Defects
4. Repair All Flashing Defects
5. SurfacePreparation
6. Perform Adhesion Tests
7. Install Silicone RCR Membrane
8. Install Walkway Systems
1.2 PerformanceRequirements
A. Conform to applicable code for fire resistance ratings of roof system.
B. Underwriters Laboratories, Inc. - UL 790: Class A Fire Hazard Classification.
C. Factory Mutual(FM) – FM Standard 4470 approval
D. All silicone products must be domestically produced. Products produced outside of the US will not
be accepted.
E. Coating manufacturer must produce its own product. Private labeled silicone coating products will
not be accepted.
1.3 Submittals
A. Product Data: Product data on silicone coating, physical and chemical properties, preparation of
substrate required, productlimitations, and cautionary requirements.
B. Safety Data Sheets (SDS)
C. Shop Drawings: Roof plan and details showing extent of roofing, intersections with adjacent
surfaces, and details of expansion joints, counterflashing, and other items for a complete roofing
system.
D. Manufacturer's Installation Instructions: Indicate installation requirements and procedures.
E. Certificates:
1. Product certificates signed by the manufacturer certifying material is in compliance with the
specified performance characteristics and criteria, and physical requirements.
F. Sample copy of PM warranty
Recommended Design Specification
RCR ROOFING SYSTEM OVER METAL PANEL 07545-2
G. Maintenance Data: For RCR System to include in maintenance manuals.
H. Final Inspection Report: Copy of roofing system manufacturer’s inspection report of completed
roofinginstallation.
1.4 Quality Assurance
A. Manufacturer:
1. Company specializing in the manufacturing of the system specified in this Section.
2. A minimum of 10,000,000 square feet of a similar system installed.
B. Installer:
1. Installer must be a Certified Licensed Applicator (CLA) by the Manufacturer providing the
warranty, and capable of receiving the specified warranty.
2. CLA to ensure all personnel are properly trained and have a full understanding of all OSHA
safetyrequirements.
C. Manufacturer Field Representative: Provide a qualified representative ofthe Manufacturer
providing the warranty to monitor and periodically inspectthe installation.
1.5 Delivery, Storage, and Handling
A. Deliver and store liquid materials and other products in their original unopened containers or
packaging until ready for installation.
B. Materials shall be clearly labeled with the manufacturer’s name, productidentification, safety
information, and lot numbers.
C. Store materials indoors whenever possible.
D. Protect stored products from freezing.
E. Comply with the manufacturer’s instructions for handling and safety procedures.
F. Store and dispose of solvent-based materials, and materials used with solvent-based materials, in
accordance with requirements of local authorities having jurisdiction.
1.6 EnvironmentalRequirements
A. Maintain logs of environmental conditions (temperature, humidity, and wind speed) within limits
recommended by manufacturer for optimum results. Do not install products under environmental
conditions outside of manufacturer’s limits.
B. 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.
C. Do not install silicone coating under the following conditions:
1. When ambient temperature is below 35° F.
2. At temperatures less than 5° F above dew point.
1.7 Warranty
A. Provide Manufacturer’s (5, 10, 15 or 20 year) labor & material warranty covering leaks due to
silicone material failure.
Recommended Design Specification
RCR ROOFING SYSTEM OVER METAL PANEL 07545-3
Part 2. Products
2.1 Acceptable Products
A. InsulationBoard
1. Match existing material
B. Butyl Fleece Tape
1. Progressive Materials: FT 500 Butyl Fleece Tape
C. Cleaners and Primers
1. ProgressiveMaterials:
a. P-130 RustInhibitive Primer
D. Silicone Caulk Sealant
1. Progressive Materials: SS 300 Series Silicone Sealant
E. Flashing Grade Sealant
1. Progressive Materials: FG 400 Silicone Flashing Grade Sealant
F. ReinforcingFabric
1. Progressive Materials: PF 200 Polyester Fabric
a. PF 206 – 6”
b. PF 212 – 12”
G. Walkway System
1. Progressive Materials: Pro-Grip Walkway System
a. PG 700 Pro-Grip Yellow Walkway Coating
b. PG 750 Pro-Grip Yellow Walkway Granules
H. Skylight Sealer
1. Progressive Materials: HS 3220 Clear Silicone Skylight Coating
I. SiliconeCoating
1. Progressive Materials: Pro-EcoSil HS 3200 Series
2.2 Silicone Coating Materials
A. Silicone base and top coat to be Pro-EcoSil HS 3200 Series Silicone Coating by Progressive Materials,
LLC and complying with the following minimum properties:
1. Tensile Strength: ASTM D412, 247.
2. Elongation: ASTM D412, 237 percent minimum at break at 75° F.
3. Water Vapor Permeance: ASTM D-96, 10.7 at 20 mils.
4. Fire resistance: ASTM E108, UL 790 Class A.
5. Color: Owner to select standard topcoat color.
6. Solids Content: 92% ±3%
7. VOC Content: < 50 grams/liter
8. Initial Solar Reflectivity: .89
9. Initial Thermal Emissivity: .90
10. SRI Value: 113
Recommended Design Specification
RCR ROOFING SYSTEM OVER METAL PANEL 07545-4
Part 3. Execution
3.1 Examination
A. Verify roof slope prior to beginning installation. There is to be no single area of standing water on
the roof 24 hours after a rain, greater than 100 sq. ft. and more than ½” deep.
B. Identify all seam failures, flashings failures and inadequate sheet metal details.
C. Inspect all roof drains to ensure proper performance.
D. Inspect all roof system fasteners for back out.
3.2 Preparation
A. Cleaning
1. Thoroughly powerwash roof surface and all other areas to receive new coating with a minimum
of 2,000 psi water pressure. Be sure not to damage existing metal panels during this process.
2. After the surface has dried, perform an adhesion test. If the coating does not properly adhere to
the surface, apply P-130 Rust Inhibitive Primer at a rate of ½ gallon per 100 square feet.
3. Any areas of grease contamination are to be cleaned with an industrial strength detergent.
4. Any existing roofing or mastic materials must be removed as the warranty will not cover failure
of underlying materials.
5. All loose coating or paint material must be removed by wire brush, powerwashing or scraping.
B. RustContamination
1. Any rust areas should be cleaned with a wire brush to remove scaling.
2. Apply P-130 Rust Inhibitive Primer at a rate of ½ gallon per square.
C. FlashingDetails
1. Ensure all existing flashings provide a watertight condition. If necessary, re-flash any areas
required with FT 500 Butyl Fleece Tape. Apply 25 mils of HS 3200 Silicone Coating over Fleece
Tape.
D. Sheet Metal
1. Ensure all sheet metal accessories are in good condition and will provide a watertight condition.
If necessary, replace or repair any sheet metal required to provide a watertight condition.
E. Fasteners
1. Identify and replace all fasteners that are loose or backed out and replace with oversized
fastener.
2. Prior to coating the field of the roof, spot apply HS 3200 to all fasteners. Generously apply
coating to ensure complete encapsulation of fastener. Application may take 2 coats depending
on fastener size.
F. Fiberglass Skylight Panels
1. Thoroughly clean skylight panels and apply 2 coats (30 mils) of HS 3220 Clear Skylight Coating.
G. Horizontal Laps:
1. Apply pressure to lower lap panel, if more than 1/8” gap appears at lap joint, install additional
stitch fasteners.
2. Clean any residual roofing material from lap area.
3. Install 4” FT 500 Butyl Fleece Tape over lap joint. Ensure material is centered over the lap joint
and use a roller to compress tape to eliminate any voids or fish mouths.
Recommended Design Specification
RCR ROOFING SYSTEM OVER METAL PANEL 07545-5
4. Apply 25 mils of HS 3200 over the FT 500 Butyl Fleece Tape after installation
H. Vertical Laps
1. Apply pressure to vertical lap joint, if more than 1/8” gap appears at lap joint, install additional
fasteners and treat fastener as outlined above.
3.3 Silicone Coating Installation
A. Ensure surface is completely dry.
B. Ensure subsequent coats of primer or silicone coating is completely cured.
C. Ensure adhesion tests have been completed and results are satisfactory with the manufacturer’s
requirements.
D. Install silicone coating in two or three passes over entire roof surface to achieve a final thickness of:
1. 15 mils minimum for a 5 year warranty
2. 20 mils minimum for a 10 year warranty
3. 25 mils minimum for a 15 year warranty
4. 30 mils minimum for a 20 year warranty
E. Care should be taken to ensure proper coverage of vertical rib surfaces.
F. NOTE
1. Any subsequent roof repairs after the coating installation should be done only with silicone
products. Repairs should be completed with a three course coating and fabric if needed.
3.4 Walkway System
A. Install the Pro-Grip Walkway System at heavy traffic areas and at high impact areas as directed by
the owner.
1. WalkwayAreas
a. Walkways should be a minimum of 30” wide.
b. Mask off area to receive walkway system to ensure clean, straight edges.
c. Install PG 700 Pro-Grip Yellow Walkway Coating at a thickness of 25 mils.
d. Immediately after the application of the PG 700, broadcast PG 750 Pro-Grip Walkway
Granules into the coating at a rate of 40 lbs. per 100 square feet. The granules will settle
into the coating. Apply the granules generously, inspect the surface within a few minutes
and reapply as needed to obtain a continuous film of granules.
2. High Impact Areas (around mechanical equipment, etc)
a. Mask off area to receive walkway system to ensure clean straight edges. Area should be
30” wide around all identified equipment.
b. Install PG 700 Pro-Grip Yellow Walkway Coating at a thickness of 40 mils.
c. Immediately after the application of the PG 700, broadcast PG 750 Pro-Grip Walkway
Granules into the coating at a rate of 60 lbs. per 100 square feet. The granules will settle
into the coating. Apply the granules generously, inspect the surface within a few minutes
and reapply as needed to obtain a continuous film of granules.
B. After the coating has completely cured, remove all loose granules with a small hand blower and a
soft bristle broom.
Recommended Design Specification
RCR ROOFING SYSTEM OVER METAL PANEL 07545-6
3.5 Field Quality Control
A. Final Roof Inspection: Arrange for roofing system manufacturer’s technical personnel to inspect
roofing installation upon completion and submit report to Owner/Architect. There shall be no
items on the roof that could inhibit the inspection process, such as, solar panels, decking systems,
etc.
1. Notify Owner 48 hours in advance of date and time of inspection.
a. Repair or remove and replace components of roofing system where inspection results
indicate that they do not comply with specified requirements.
3.6 Cleaning
A. Remove overspray from adjacent surfaces using cleaning agents and procedures recommended by
manufacturer of affected construction.
B. In areas where finished surfaces are soiled by work of this section, consult manufacturer of surfaces
for cleaning advice and conform to their instructions.
C. Repair or replace defaced or disfigured finishes caused by work of this section.
3.7 Protection of Finished Work
A. Ensure roof surface is free of traffic for minimum of 12 hours after silicone coating application or
until coating is completely cured.
B. Ensure any subsequent work does not cause damage to finished roof system. If necessary, install
protection over finished roof area