SECW: Roof Coatings Commercial Roofing Flat Roofing Repair Metal Roof Repair

Leak Proof Warranties

Single-Ply Membranes Using Polyurea Hybrid-540

Each job must be approved by Southeastern Coatings before the job begins in order to receive the Labor & Material Warranty.

1. GENERAL

1.1 Work Included:

A. Provide all labor and materials, equipment and supervision necessary to repair clean and prepare existing single-ply surface and install American Southeastern's primer and Polyurea Hybrid Roof Coating System in accordance with this specification and manufacturer's instructions. This specification does not cover EPDM single-ply.

1. Install all materials in strict accordance with all published safety, weather and temperature precautions given by the manufacturer.

2. Roof shall be free of debris and fixtures not secured as part of roof mounted equipment.

3. Blowers, air conditioning units, and evaporative coolers shall be disconnected or otherwise modified to prevent fumes from penetrating into the building or from contaminating the roof surface with condensing water.

4. Preparation of all seams and surfaces to receive work under this section.

5. Bring single ply back to original specifications.

6. Clean all surfaces prior to priming.

7. Priming of existing single ply as recommended by the coating manufacturer.

8. Priming of other materials as recommended by coating manufacture.

9. Coating of primed surface with Hybrid Polyurea Spray Polymer Coating System.

1.2 Work Excluded:

A. Repair to structural components of the roof.

B. Replacement of or modification to drains, vents, ducts metal cap or other penetrations.

C. Installation of materials to change slope or otherwise facilitate water drainage.

1.3 Approved Manufacturers and Applicators:

A. The manufactures, applicators, system materials and all items associated with the roof work shall be used only if approved by the Owner/ Architect/ Consultant. All work under this section shall be installed by an applicator that has been licensed in writing by the manufacturer prior to bid date.

B. Manufactures shall not have less than ten (10) years of current experience in the manufacturing of Two Component Urethane roof coatings.

C. Applicator's qualifications and equipment shall be acceptable to the manufacturer of the coating.

1.4 Product Delivery, Storage, and Handling:

A. Deliver materials in unopened manufacturer's containers with manufacturer's labels affixed. Include the following on label of each container: Manufacturer's name, product name, type, and class of material, batch or lot number, mixing instructions, and precautions.

B. Materials shall be delivered in sufficient quantities so as not to cause delays in the work.

C. Contractors shall be responsible for storage and protection of all materials required. Materials shall be stored in a manner so as not to exceed the manufacturer's temperature limitations. In all cases, the storage and handling of materials shall conform to the requirements of the manufacturer and the applicable safety regulatory agencies.

1.5 Pre-Construction Conference: (optional)

A. Prior to the start of the project, a meeting shall be held at the job site attended by the Contractor's Representative, representative of the coating manufacturer, and the Owner's representative to review materials, application procedures, and all items associated to this phase of the work.

1.6 Environmental Requirements:

A. Contractor is to take precautions to protect this building project, other adjacent facilities, and vehicles from possible overspray.

B. Do not install coating materials under the following conditions:

1. When surfaces are wet or rain is imminent.

2. When wind velocity is above fifteen (15) MPH without using windscreen.

C. The following environmental conditions, including the overall weather conditions, shall be recorded by the contractor on the Daily Quality Control Report: General Weather Conditions (i.e. cloudy, sunny, rainy, etc.), Surface Temperature, Surface Moisture, Ambient Temperature, Relative Humidity, and Wind Velocity.

1.7 Field Quality Program:

A. Daily Quality Control Report shall be maintained by the Contractor and the environmental conditions shall be recorded a minimum of two (2) times a day.

B. Output pressures at the spray machine shall be monitored for assurance of 1 to 1 ratio spraying.

C. The product in the original containers shall be maintained at a proper spraying temperature.

D. Iso side (Aside) must be mixed with proper equipment, and for a minimum time of 15 minutes, before spraying.

2. PRODUCTS

2.1 Materials:

A. All products listed are supplied, or approved by American Southeastern.

1. Seam Tape: American Southeastern's-- Butyl Backed Reinforced Tape.

2. Primer: American Southeastern's - Single Ply Primer-950 Waterborne Urethane Bonding Primer.

3. Coating: American Southeastern's -- Polyurea Hybrid-540 Roof Coating.

TENSILE:	ASTM D-412 Strength: Elongation: Permanent Set at break:	1500 psi 200-300% 10% max.
HARDNESS:	ASTM D-2240	80-85 Shore A
ADHESION:	ASTM D-903	Excellent to primed surface.
TEAR RESISTANCE:	ASTM D-624 Die C	125 pli
WATER ABSORPTION:	ASTM D-471 24 Hours R.T.:	1.5%
WATER VAPOR PERMEABILITY:	ASTM E-96 Procedure B	0.02 Perm in.
SOLIDS:	Weight: Volume:	100% 100%
CHEMICAL RESISTANCE:	Good salt and solvent resistance. Fair resistance to acids and alkali.
V.O.C.:	27 grams/liter.
FLASH POINT:	ASTM D-56 (TCC) Greater than 200°F

2.2 Other Materials Required:

A. All other materials shall be approved by American Southeastern

B. Submittals for other coating systems are to be received five (5) working days prior to bid date.

3. EXECUTION

3.1 Surface Preparation:

A. Substrate Condition:

1. Existing single-ply membrane shall be repaired to original manufacturer's standard. Particular care should be taken when inspecting field fabricated seams, flashing and terminations.

2. Inspect flashing and terminations for damage or stress caused by membrane shrinkage and repair.

3. Replace deteriorated or structurally unsound decking.

4. Loose or backed-out fasteners must be tightened or replaced with over sized fasteners.

5. Areas of excessive amounts of cold applied materials or silicones shall be removed and primed as required.

B. Cleaning:

1. Sweep or blow dirt and dust from roof surface and pressure wash with clear water at a minimum of 4000 psi with a fan tip.

Caution: When pressure washing old membrane, care must be taken not to damage membrane or exposed reinforcement.

2. Areas containing grease, oil, animal fats or other surface contaminants shall be pressure washed with liquid detergent or tri-sodium phosphate.

3. Use concentrated chlorine solution to treat areas of mildew, fungus, or algae.

4. All cleaning agents must be rinsed off of roof.

5. Allow roof to dry completely before proceeding with priming and coating.

NOTE: Care must be taken to insure that the substrate is properly prepared. Any defect in the condition of the substrate existing prior to the coating, must be corrected by the owner and/or applicator; otherwise, these defects may adversely affect the condition of the coating over time, necessitating maintenance and/or repair.

3.2 Priming:

A. Primer: Primer: Apply Single Ply\ Primer 950 to all surfaces to be top coated at the rate of 250-300 sq. ft. per gallon. Allow to dry completely. Primer must be top coated no later than the following day.

3.3 Coating:

A. Seams: Apply Polyurea Hybrid-540 in one coat on all seams and around all penetrations at the rate of I gallon per 100 sq. ft. to achieve an average of 16 dry mils, minimum 14. For seam gaps wider than 1/8", apply American Southeastern's 6" Butyl Backed Reinforced Tape centered over existing seam. Apply Polyurea-Hybrid-540 at the above rate over repaired seam area.

B. Top Coat: Apply Polyurea-Hybrid -540 in one coat to the entire roof area, at the rate of 2.5 gallon per 100 sq. ft. to achieve an average of 40 dry mils, minimum 34.

C. The protective coating shall extend up the penetration, 6" above the flashing.

4. FIELD QUALITY CONTROL

4.1 Inspection:

A. Coating Thickness: The finished dry film thickness will measure an average of 38-40 dry mils, minimum 34 on all flat surfaces, and 54-56 dry mils on seams and around penetrations.

B. Defects: There shall be no blisters, pinholes, voids, or membrane defects of any kind.

C. Variations: Any variations from specified procedures or limits found by the applicator, representatives of American Southeastern, or the owner, shall be immediately corrected by the applicator.

5. GUARANTEE

5.1 Requirements:

A. American Southeastern guarantees that the material supplied will meet or exceed physical properties as published.

B. The applicator shall guarantee that all work performed will be free from defects in materials and workmanship. Upon notice of defect in writing to the applicator, the applicator shall, at there own expense, make necessary repairs or replacements of the defective work in question.

C. A 10-year Labor and material warranty from American Southeastern, is available for commercial projects only. The applicator must make application to American Southeastern in accordance with the published guarantee policy prior to start of work, to qualify the project for a guarantee.

THIS INFORMATION AND TECHNICAL ADVICE PROVIDED HEREIN ARE BELIEVED TO BE RELIABLE AND ACCURATE TO THE BEST KNOWLEDGE OF AMERICAN Southeastern, AS BASED ON TESTS AND SHOULD SERVE ONLY AS A RECOMMENDATION. AS THE MANUFACTURER, AMERICAN Southeastern, INC MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND, EXPRESSED, IMPLIED OR STATUTORY, INCLUDING BUT NOT LIMITED TO ALL IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR USE OR A PARTICULAR PURPOSE FOR THE PRODUCT. AMERICAN Southeastern, MAKES NO REPRESENTATIONS OR WARRANTIES AS TO THE RESULTS OF THE USE OF THE PRODUCT AND ASSUMES NO OBLIGATION OR LIABILITY IN CONNECTION THEREWITH. AMERICAN Southeastern IS NOT LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES OF ANY SORT FROM USE OF THIS PRODUCT.