To install an Tough Stuff coating system to waterproof and restore existing concrete substrates to watertight and maintainable conditions.
B. RELATED WORK:
The work includes but is not necessarily limited to the following:
1. Cleaning and preparation of substrate
2. Application of primers
3. Detailing of flashings and penetrations
4. Application of base coat, mid coat and finish coat on roof surface
A. PRODUCT DATA:
Submit schedules, charts, literature, material safety data sheets, and illustrations to indicate the performance, fabrication procedures and product variations.
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.
Provide a sample of Coatings International Roofing Systems’ warranty and the applicator’s warranty.
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
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.
All work including disposal of materials shall be in compliance with applicable local building codes.
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.
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 in writing by Coatings International Roofing Systems. Products not supplied by Coatings International will not be covered by Coatings International Roofing Systems' warranty.
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.
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:
|AC5000, AC5500, AC5600, AC5900, UR1600, UR1700||Two minutes|
|UR2650||Four minutes (two part)|
|UP70||Four minutes (two part - five minute digest after mixing)|
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. WET ROOFING REPLACEMENT:
Locate wet insulation and remove. Replace with new insulation to match existing roof level. Leave room at the top for 1/2” OSB to face the repair. Space joints 1/8” to leave room for expansion. The width of the plywood will be related to wind uplift requirements.
After installing the plywood finish as follows
Prime with AC5600 at 1 gallon/100 square feet whenever surface to be coated does not have a base coat with liner.
A. SPLITS & CUTS:
All splits must be repaired with the polyester liner.
B. FISH MOUTHS:
All fish mouths in the seam areas shall be cut open, dried out and resealed.
All blisters must be cut open, dried out, and resealed.
Seams will be either all reinforced or just repaired as specified.
Apply polyester reinforcement on areas that have significant movement.
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 or use AC5500 Mastic. Consult Coatings International for recommendations.
Mastic Mixing Ratios:
|USAGE||RATIO OF D200 TO URETHANE|
|Light brush / spray||30%|
Apply additional layer(s) of the specified top coat product at 1.5 gallons/square with optional aggregate. Aggregate can be added to the mixture or broadcast into the wet material.
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 mastic (see Section 2.07) on the base of the vent and set vent centered over hole. Finish edge of vent with additional caulking and tool into place.
|AC5000, AC5500, AC5600, AC5900, PR3800||Water|
|PR3300, PR3400, PR3450, UP70||Xylene|
|UR1700, UR1900||MEK/Xylene blend|
|PRODUCT||COAT WITHIN||IF NOT, APPLY|
|UR1700||7 days||Prime with PR3600|
|UR2100||No Window||Prime with UP70|
|UR2650||48 hours||Prime with PR3600|
|WARRANTY PERIOD||SYSTEM||PRIMER||BASE COAT/PRIMER||MID COAT||FINISH COAT|
|5 Year(Option A / Unlined / 5% Ponding)||SSM UR1700-5||Line all seams with FA206 6" in UR1600 or UR2650||AC5600 at 1.0 gal./sq.||UR1700 at 2 gal./sq.|
(Option B / Unlined / 5% Ponding)
||AC5600 at .5 gal./sq.||Line all seams with FA206 6" in UR1600 or UR2650||1 coat AC5000 at 1.5 gal./sq.||1 coat AC5000 at 1.5 gal./sq.|
(Option C / Fully Lined / 5% Ponding)
|SSM AC5600-5||Line entire roof with FA240 in AC5600 at 2.5 gal./sq.||AC5600 at .5 gal./sq.|
(Option A / Unlined / 5% Ponding)
|SSM UR1700-10||Line all seams with FA206 6" in UR1600 or UR2650||UR1700 at 1.5 gal./sq.||UR1700 at 1.5 gal./sq.|
(Option B / Fully Lined)
|SSM SL6000-10||Line entire roof with FA240 in AC5600 at 2.5 gal./sq.||SL6000 at 1.0 gal./sqb||SL6000 at 1.0 gal./sq.|
(Option C / Fully Lined / 5% Ponding)
|RSSM 1700-10||Line entire roof with FA240 in AC5600, UR1600, or UR2550 at 2.5 gal./sq.||UR1700 at 1.5 gal./sq.||UR1700 at 1.0 gal./sq.|
(Option D / Fully Lined / 5% Ponding)
|Line entire roof with FA240 in AC5600 at 2.5 gal./sq.||AC5900 at 1.5 gal./sq.||AC5900 at 1.0 gal./sq.|
|RSSM SL6000-15||Line entire roof with FA240 in AC5600 at 2.5 gal./sq.||SL6000 at 1.5 gal./sq.||SL6000 at 1.5 gal./sq.|