A. SCOPE:
To install a Tough Stuff coating system to waterproof and restore existing single ply membranes to watertight and maintainable conditions.
B. RELATED WORK:
The work includes but is not necessarily limited to the following:
A. PRODUCT DATA:
Submit schedules, charts, literature, material safety data sheets, and illustrations to indicate the performance, fabrication procedures, product variations and accessories.
B. SAMPLES:
Submit sample of cured membrane materials including reinforcing where appropriate.
C. QUALITY CONTROL:
Provide test results from the manufacturer indicating compliance with the specified criteria.
D. MAINTENANCE INSTRUCTIONS:
Provide preprinted maintenance instructions for the roof coating system.
E. WARRANTIES:
Provide a sample of Tough Stuff warranty and the applicator's warranty.
A. QUALIFICATIONS:
Provide factory trained and authorized installers with a minimum of three years experience in installing work similar to the specified work. Submit written evidence of authorization from the manufacturer that contractor is an approved Tough Stuff applicator.
B. RESPONSIBILITY FOR PERFORMANCE:
If the requirements of the construction documents negate or restrict the specified performance, or if a conflict or ambiguity exists in the construction documents, the contractor must request a clarification of any discrepancies before proceeding with the work.
C. PRE-INSTALLATION CONFERENCE:
Before starting the work specified herein, a pre-installation conference shall be held to discuss all aspects of the project. The following parties shall be in attendance:
1. Applicator's field representative or roofing foreman
2. Manufacturer's technical representative and affected adjacent trades
3. Owner's representative
4. Architect
D. MANUFACTURER'S TECHNICAL ASSISTANCE:
Provide a representative to attend the pre-installation conference, and review existing conditions and application procedures at project startup and periodically during the progression of the project.
A. CODE:
All work including disposal of materials shall be in compliance with applicable local building codes.
A. DELIVERY:
Deliver clearly labeled, undamaged materials in the manufacturer's unopened containers.
B. TIMING AND COORDINATION:
Deliver materials to allow for minimum storage time at the project site. Coordinate delivery with the scheduled time of installation.
C. STORAGE:
Store materials in a clean dry location, protected from weather and abuse.
A. EXAMINATION OF EXISTING CONDITIONS:
Contractor shall examine existing conditions affecting this work and shall report all unsatisfactory conditions to the proper authority and will not proceed until these conditions have been corrected. Commencing work implies acceptance of existing conditions as satisfactory to the outcome of this work.
All products used in the coating assembly must be furnished, specified, or approved of in writing by Coatings International, Inc. Products not supplied by Coatings International will not be covered by Coatings International Roofing Systems' warranty.
A. TERM:
The manufacturer shall warrant the specified work from the date of completion for the length of the specified warranty against becoming unserviceable from either nonconforming materials or workmanship.
B. LIMITATION:
A. SAFETY:
Urethane coatings typically contain organic solvents and as such can be toxic and flammable. Work only in fully ventilated areas. Do not smoke when using these products or use near sparks, heat, or any open flames. Read and follow the Tough Stuff Material Safety Data Sheets (MSDS). All waste materials including empty pails must be removed from the site by the applicator and taken to a landfill authorized to receive such materials.
Urethanes and primers will require proper mixing before application as follows:
PRODUCT | MIX TIME |
AC5600, PR3200, PR3300, PR3600 | None |
UR2550, UR2650, UR2750 | Four minutes (two part) |
PR3500 | One minute (two part - five minute digest after mixing) |
PR3400, PR3450, AC5000, AC5900, UR1600, UR1700, UR1800 | One minute |
A. CLEANING:
Remove dirt, and foreign material detrimental to adhesion or application of roofing. Use CL404 cleaner diluted 20:1 with water. On heavy dirt or grease, apply full strength. Broom scrub the soap solution on the membrane to loosen oxidation and dirt and rinse with a minimum 2500 psi water blaster. If there are algae growing on the surface, the cleaning must include bleach in the washing of the substrate.
B. DEFECTS & SHRINKAGE:
LOCATION | WIDTH |
Outside Edge | 4-12 feet (12 ft. for maximum requirements) |
Interior Walls | 4 feet |
Machine Curbs | 2-4 feet |
Vents | 2 feet |
Install 1/2” OSB over the membrane if the edge is high and apply system directly to the OSB. Remove existing roof and insulation at the perimeter if the edge is low and install new insulation to match roof level. Face the top layer of insulation to be 1/2” OSB with new system again installed directly to the OSB. Tuck the existing roof under the OSB detail. Install plywood edge with screws and plates per FM I-90.
After installing the plywood, finish as follows:
Certain substrates may require the use of a primer to achieve proper adherence of the base coat to the substrate.
MEMBRANE | PRIMER | COVERAGE |
EPDM | AC5600 PR3300, PR3600 PR3450 |
.50 gal./sq. .20 gal./sq. .33 gal./sq. |
CPE, CPA, PVC | AC5600 PR3300, PR3600 PR3450 |
.5 gal./sq. .20 gal./sq. .33 gal./sq. |
Hypolon, PIB | AC5600 PR3300, PR3600 PR3450 |
.50 gal./sq. .20 gal./sq. .33gal./sq. |
Membranes with seam failure require all field fabricated seams and flashings to be reinforced with polyester liner material. On other single ply substrates, all defective seams as determined by seam probing shall require lining.
Round projections, machine legs, sign posts, guide wire straps, inside and outside corners, etc. can be flashed using the D200 powder additive mixed into the urethane to create a mastic mixture. The mastic mixture is also used to create cants and as a joint filler.
Mastic Mixing Ratios:
USAGE | RATIO OF D200 TO URETHANE |
Cants | 50% |
Brushable | 40% |
Light brush / spray | 30% |
A. SPLITS & CUTS:
All splits must be repaired with the polyester liner.
B. FISH MOUTHS:
A field liner is typically installed over marginal stability membranes subject to cracking.
Place vents 5’ from outside walls every 50’ and at all inside and outside corners. Cut membrane and insulation to primary roof or to deck. Fill hole in insulation with crumbled insulation that was cut out. Place a triple bead of SL6000 mastic on the base of the vent and set vent centered over hole. Finish edge of vent with additional caulking and tool into.
MATERIAL | CLEANUP SOLVENT |
AC5000, AC5600, AC5900 | Water |
BU8000 | Mineral Spirits |
PR3300, PR3400, PR3450 | Xylene |
PR3600 | No Clean Up Required |
SL6000 | Xylene |
UR1600, UR1800 | Xylene |
UR1700, UR1900 | MEK/Xylene blend |
UR2550, UR2650, UR2750 | Xylene |
PRODUCT | COAT WITHIN | IF NOT, APPLY |
AC5000 | No Window | |
AC5600 | No Window | |
AC5900 | No Window | |
BU8000 | No Window | |
PR3200 | 24 hours | Recoat with PR3200 |
PR3300 | 48 hours | Recoat with PR3300 |
PR3400 | 6 hours | Recoat with PR3400 |
PR3450 | 6 hours | Recoat with PR3450 |
PR3500 | 24 hours | Recoat with PR3500 |
PR3600 | 48 hours | Recoat with PR3600 |
SL6000 | No Window | |
UR1600 | No Window | |
UR1700 | 7 days | Prime with PR3600 |
UR1800 | 72 hours | Prime with PR3600 |
UR1900 | No Window | /td> |
UR2550 | 5 days | Prime with PR3600 |
UR2650 | 48 hours | Prime with PR3600 |
UR2750 | 4 hours | Prime with PR3450 |
WARRANTY PERIOD | SYSTEM | PRIMER | BASE COAT/LINER | MID COAT | FINISH COAT |
CPA, CPE, REINFORCED PVC & CSPE RESTORATIONS | |||||
5 Year | SP UR1700-5 | AC5600 or PR3300 at .33 gal./sq. Line all defective seams. | UR1700 at 2.0 gal./sq. | ||
5 Year (Reinforced) | SP AC5600-5 | AC5600 at 2.0-2.5 gal./sq set in FA240 liner | AC5600 at .5 gal./sq. (blue) | ||
10 Year (Reinforced) | SP AC5900-10 | AC5600 at 2.5 gal./sq. set in FA240 liner. | AC5900 at 1.5 gal./sq. | AC5900 at 1.5 gal./sq. | |
10 Year (Unreinforced) | SP UR1700-10 | PR3300 at .33 gal./sq. Line all defective seams | UR1600 at 2.0 gal./sq. | UR1700 at 2.0 gal./sq. | |
10 Year HD (Reinforced) | RSP UR1700-10 | AC5600 or UR1600 at 2.5 gal./sq. FA240 liner on field. | UR1700 at 1.5 gal./sq. | UR1700 at 1.0 gal./sq. | |
EPDM - SEAMS ONLY | |||||
5 Year (Seams Only) | EPDMS UR1800-5 | PR3200 at .20 gal./sq. or PR3300 at .33 gal./sq. or PR3450 at .33 gal./sq. or PR3600 at .20 gal./sq. or AC5600 at .50 gal./sq. |
Line all seams with FA206 & UR1800 | UR1800 at 1.5 gal./sq. over seams | |
EPDM - FIELD SHEET | |||||
5 Year | EPDM UR1800-5 | PR3200 at .20 gal./sq. or PR3300 at .33 gal./sq. or PR3450 at .33 gal./sq. or PR3600 at .20 gal./sq. or AC5600 at .50 gal./sq. |
Line all seams | UR1800 at 1.5 gal./sq. | UR1800 or UR1700 at 2.0 gal./sq. |
10 Year | EPDM UR1800-10 | PR3200 at .20 gal./sq. or PR3300 at .33 gal./sq. or PR3450 at .33 gal./sq. or PR3600 at .20 gal./sq. or AC5600 at .50 gal./sq. |
Line all seams | UR1800 at 2.0 gal./sq. | UR1800 or UR1700 at 2.0 gal./sq. |
EXISTING UNREINFORCED PVC | |||||
10 Year (Must be reinforced) | PVC UR1700-10 | UR2650, AC5600 or UR1600 at 2.5 gal./sq. FA240 on entire roof. | UR1700 at 1.0 gal./sq. | UR1700 at 1.5 gal./sq. |