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PERMAKOTE® and PERMAKOTE PLUS®

Tar and Gravel Roof Application Pictures

This Procedure and Picture Application is intended to Aid in the Application and Is Not Sufficient for Warranty Conformance, Inquire for a Detailed Application Procedure and a Warranty Registration & Conformance Certificate before Application of Any Coatings.

GETTING STARTED
All coatings must be stirred manually or mechanically before being used (except for PERMAPATCH™). Do not let products freeze. Do not use any of these products at temperatures below 45 degrees Fahrenheit. Apply all products to dry surfaces only and do not apply products when they will be subjected to rain, high humidity or heavy dew before they have had enough time to dry (check Product Data Sheets). Do not thin any products unless specifically mentioned in this Application Procedure or Product Data Sheets.

VISUAL INSPECTION and REPLACEMENT of DAMAGED BUILDING MATERIALS -   The substrate to be coated must be in SOUND condition. Physically inspect the surface area for missing or damaged building materials. Replace and/or repair all damaged areas back to sound and solid condition. This Application is not for metal roofs and will not seal rust, any rust must be treated before coating is applied, inquire about METAL-PRIME Rust Treatment Process. Inspect for any existing leaks and be sure to repair leaks prior to the application of coating. Use PERMAKOTE® on Roofing surfaces having a Slope Greater than 1 inch per 24 inches or greater than a 4 degree angle, and not pond or hold any standing water at all. Only PERMAKOTE PLUS® can be used on Flat and Level Roofing Surfaces, but can not hold or have any more than 1/2" of Standing Water in Any Area of Entire Roofing Surface (Please inquire for limitations). Roof must completely drain; proper drainage is essential before any coating is applied. Make sure roof is adequately vented, or condensation leaking can occur. This coating is not intended to stop and/or repair any past, present or future leaks and is not guaranteed to do so. Leaks, Labor and Quality of Workmanship are not warranted and will be the sole responsibility and liability of the applicator/contractor. Check with a licensed roofing contractor if necessary.

STEP#:2 PRESSURE CLEANING
High Pressure Blast entire roof surface with at least 1500 P.S.I. of pressure using a water and chlorine solution (approximately 1 quart chlorine to 5 gallons of water). Thoroughly remove all dirt, oil, grease, residues, mold, mildew, algae and any other surface contaminants. Severe mildew requires a stronger concentration of chlorine. When roof is completely cleaned, rinse with water only. Let roof surface dry at least 12 hours before continuing.
PERMAKOTE and PERMAKOTE PLUS has excellent mildew resistance, but this product WILL NOT kill mildew already on the surface.
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STEP#:3 GRAVEL TREATMENT
Use a push broom to level off the remaining gravel to achieve a roof surface even with the slope of the roof. Do not leave any piles of gravel or low spots. Remove all extraneous debris off entire roof surface.
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STEP#:4 PRIME COAT
Apply PRIMER (PERMABOND™) using 1- brush, 2- at least a one inch nap roller, or 3- at least a 1 gallon per minute, 3,000 P.S.I. piston type airless sprayer with a minimum tip size of .025 tip. Remove tip and gun filters before starting.
When Spraying or Rolling PRIMER, it must be applied perpendicular to the slope of the roof; example: If the slope of the roof runs from North to South then the coating will be applied spraying from East to West. This will be the start of a checkerboard application pattern.
Apply the PRIMER at a rate of 75 -100 square feet per gallon covering the entire roof surface. Wet film thickness of 10-12 mils wet resulting in dry film thickness of 4-5 mils. Let PRIMER dry at least 12 hours before continuing.

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STEP#:5 FIRST COAT of FINISH/TOP COAT
Be sure entire surface is clean and free of all moisture. Be sure the entire area to be coated is primed, if not, then spot prime as needed.
Apply PERMAKOTE® or PERMAKOTE PLUS® using 1- brush, 2- at least a one inch nap roller, or 3- at least a 1 gallon per minute, 3,000 P.S.I. piston type airless sprayer with a minimum tip size of .027 tip. Remove tip and gun filters before starting.
When Spraying or Rolling PERMAKOTE® or PERMAKOTE PLUS®, the first coat of PERMAKOTE® or PERMAKOTE PLUS® must be applied perpendicular to the coat of PRIMER to achieve a checkerboard pattern.

Apply the first coat of PERMAKOTE® or PERMAKOTE PLUS® at a rate of 75-100 square feet per gallon per coat over the entire roof surface. Wet film thickness of 12-15 mils resulting in dry film thickness of 8-10 mils. Let dry at least 12 hours before continuing.

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STEP#:6 SECOND COAT of FINISH/TOP COAT
Be sure entire surface is clean and free of all moisture. Be sure the entire roof area is completely coated, if not then, spot coat.
Apply PERMAKOTE® or PERMAKOTE PLUS® using 1- brush, 2- at least a one inch nap roller, or 3- at least a 1 gallon per minute, 3,000 P.S.I. piston type airless sprayer with a minimum tip size of .027 tip. Remove tip and gun filters before starting.
When Spraying or Rolling PERMAKOTE® or PERMAKOTE PLUS®, the second coat of PERMAKOTE® or PERMAKOTE PLUS® must be applied perpendicular to the first coat of PERMAKOTE® or PERMAKOTE PLUS® completing the checkerboard pattern. Apply the second coat of PERMAKOTE® or PERMAKOTE PLUS® at a rate of 100-125 square feet per gallon per coat over the entire roof surface. Wet film thickness of 12-15 mils resulting in dry film thickness of 8-10 mils. Let dry at least 24 hours before your Final Evaluation.
 

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STEP#:7 FINAL EVALUATION
At this time a detailed evaluation of the completed job will determine the quality of the workmanship and whether strict application specifications have been met. The entire roof surface must be completely coated & sealed. Be sure to check that all roof areas are completely coated and sealed under permanently placed roof items such as roof top air conditioning units.

Divide roof into 1,000 square feet sections and randomly check one spot in each section for a dry film thickness of at least 20 mils. Remember to touch up the penetration made by the dry film thickness gauge. If specifications have not been met, determine how much material will be required to meet specifications and recoat. Check dry film thickness again until specifications have been met.

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EXCLUSIVITY: Some Nationwide Products are sold Exclusively by Dealers and/or Distributors in Select Areas and Regions.

LEAKS: Leaks resulting from acts of providence, owner or their agents, are not the responsibility of NPCMI and under no circumstances shall NPCMI be liable in any respects to the building, its occupants, its contents or for any consequential or incidental damages. Leaks are required to be repaired prior to the application of any coating and therefore are not covered under any warranty.

LABOR: Products Warranties are Limited to Material Only (see Limitations below), Labor is not included. Nationwide does not Warranty for Labor of any Kind.
LIMITATIONS: Any implied warranty, including warranty of fitness for a particular use or purpose, and warranty of merchantability, is limited in duration to the express warranty based on the Individual Product's Warranty, unless a shorter period is permitted by law. If no Warranty is stated for a specific product then the maximum warranty will be One Year from date of Purchase. If a Product has a specific Warranty and a Warranty was not applied for using a Warranty Registration Certificate, the maximum warranty will be One Year from Date of Purchase. NPCMI shall not be liable for incidental or consequential damages or for damage to the building, its contents, or its occupants. NPCMI's liability is limited to the reasonable replacement cost of product that has been fully paid for and shall be limited to defective product in the affected area only, whether any claim against it is based upon strict liability, negligence, breach of warranty or any other theory or cause of action. Venue in reference to any Product of Nationwide shall be Manatee County, Florida, U.S.A.
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Last modified: December 30, 2015