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CONCRETE ROOF & DECK WATERPROOFING MASTER GUIDE SPECIFICATIONS
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Revised August 2000
PART I - GENERAL
1.01 GENERAL
1.02 SUBMITTALS
1.03 QUALITY ASSURANCE
1.04 CODE REQUIREMENTS
1.05 DELIVERY AND STORAGE
1.06 SITE CONDITIONS
1.07 WARRANTY
PART 2 - EXECUTION
2.01 CAUTIONS
2.02 MIXING
2.03 SUBSTRATE PREPARATION
2.04 PRIMING
2.05 LINING OF CRACKS
2.06 FLASHINGS - POLYESTER REINFORCED
2.07 FLASHINGS - MASTIC MIXTURE
2.08 FIELD LINER (AS SPECIFIED)
2.09 APPLICATION OF FINISH COAT(S)
2.10 DRAINS
2.11 INSTALLATION OF WALKWAYS
2.12 CLEAN UP
2.13 RECOAT WINDOWS
PART 3 SCHEDULES
3.01 MATERIALS/WARRANTY/APPLICATIONS CHART
RELATED DOCUMENTS
PART I - GENERAL
1.01 GENERAL
A. SCOPE:
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:
- Cleaning and preparation of substrate
- Application of primers
- Detailing of flashings and penetrations
- Application of base coat, mid coat, finish coat on roof surface
1.02 SUBMITTALS
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.
1.03 QUALITY ASSURANCE
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 start-up and periodically during the progression of the project.
1.04 CODE REQUIREMENTS
A. CODE:
All work including disposal of materials shall be in compliance with applicable local building codes.
1.05 DELIVERY AND STORAGE
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.
1.06 SITE CONDITIONS
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.
1.07 WARRANTY
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.
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:
- Coverage is limited to the cost of the new system application.
- Warranty does not cover applications over wet roofing.
- Roof must have a minimum 1/8th” per foot slope.
PART 2-EXECUTION
2.01 CAUTIONS
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.
2.02 MIXING
Urethanes and primers will require proper mixing before application as follows:
| PRODUCT |
MIX TIME |
| AC5000, AC5500, AC5600, AC5900, PR3800, PR3900, UR1600, UR1700 |
None |
| UR2100, UR2650 |
Four minutes (two part) |
| UP70 |
Four minute (two part - five minute digest after mixing) |
2.03 SUBSTRATE PREPARATION
A. . CLEANING:
Concrete surfaces must be dry, sound, fully cured and free of efflorescence or any contaminants that may interfere with adhesion. All loose concrete, laitance, sharp edges, oil, unusual stains, or glaze must be sand blasted, water blasted, or acid etched to insure adhesion. 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.
2.04 PRIMING
- Apply first layer of UP70 at 200 square feet/gallon leaving no puddles.
- Reprime areas that do not have a uniform gloss appearance.
2.05 LINING OF CRACKS
Cracks that are larger than 1/16” wide should be routed, filled in with the powder additive mastic (see Section 2.07) and lined with the base coat and polyester fabric. Cracks smaller than 1/16” wide shall be repaired with the base coat and polyester liner.
- Once the substrate has been cleaned and primed, apply a base coat of material over the seam area several inches wider than the polyester liner. The coating shall be installed at a rate of between 1.5-2.0 gallons/square (24-32 wet mils thickness).
- Roll the 6” wide polyester liner into the wet substrate and brush it into the coating. Feather out the outside edges.
- Install an additional layer of coating over the installed polyester liner at an application rate of 1.5-2.0 gallons/square (24-32 wet mils thickness). Allow the repaired seams to cure prior to the application of the base coat for the field of the roof.
2.06 FLASHINGS - POLYESTER REINFORCED
- Apply base coat to all areas at a rate of 1.5-2.0 gallons/square and shall extend 2” beyond where the fabric will be installed. Set FA200 polyester liner in wet base coat.
- Install an additional application of base coat at a rate of 1.5-2.0 gallons/square over the installed liner extending a minimum of 2” beyond the fabric and feather out the edges of the coating.
2.07 FLASHINGS - MASTIC MIXTURE
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 |
| Cants |
50% |
| Brushable |
40% |
| Light brush / spray |
30% |
- Trowel the mastic around the base of the penetration or at the juncture of roof to wall so that the mixture is 3" wide and a minimum uniform 1/4" depth at the center that tapers to 40 mils at the edge.
- Cover the installed mastic mixture with an application of base coat installed at a rate of 1.5 gallons/100 square feet.
2.08 FIELD LINER (AS SPECIFIED)
A field liner is typically installed over the entire smooth surfaced roof. Consult the Warranty/Applications section 3.01 of this document for specific requirement or contact Coatings International.
- Apply the base coat at a rate of 1.0-1.5 gallons/square using notched squeegees or the applicator broom for the specified base coat product.
- Immediately install the polyester liner into the base coat.
- Install an additional application of the base coat at a rate of 1.0 gallon/square on top of the polyester liner using notched squeegees and back-rolling to insure proper sealing and even coverage of the coating.
2.09 APPLICATION OF FINISH COAT(S)
- Pour out coating across the top of the roof and spread out with the notched squeegee applicator tool. Back roll same area immediately with short nap enamel rollers perpendicular to the squeegee pattern.
- Pour out finish coat(s) across the roof perpendicular to the previous coat and spread out with the notched squeegee applicator tool. Back roll same area immediately after short nap enamel rollers perpendicular to the squeegee pattern.
2.10 DRAINS
- Remove the existing clamping ring collar and clean the bowl and collar. If there is existing roofing material in the drain, cut and remove all materials to eliminate restriction of water flow to the drains and to provide a clean substrate. If necessary, repair the substrate to provide a smooth transition to the roof drains.
- On lined areas extend the liner membrane and coating into the drain bowl and replace clamping ring.
2.11 INSTALLATION OF WALKWAYS
Apply additional layer(s) of the urethane at 1.5 gallons/square with optional aggregate. Aggregate can be added to the mixture or broadcasted into the wet material.
2.12 CLEANUP
| MATERIAL |
CLEANUP SOLVENT |
| AC5000, AC5500, AC5600, AC5900, PR3800 |
Water |
| PR3900 |
Toluene |
| UR1600 |
Xylene |
| UR1700, UR1900 |
MEK/Xylene blend |
| UR2100, UR2650 |
Xylene |
2.13 RECOAT WINDOWS
PART 3 SCHEDULES
3.01 CONCRETE MATERIALS, APPLICATION & WARRANTY
| FOR USE OVER CONCRETE SURFACES |
WARRANTY
PERIOD |
SYSTEM |
PRIMER |
BASE COAT/LINER |
MID COAT |
FINISH COAT |
5 Year
(Option A / Unreinforced / 5% Ponding) |
CS AC5900-5 |
PR3900 at .5 gal./100 sq. ft. (double prime areas that do not have uniform appearance.) |
Line all cracks larger than 1/16th inch with FA206 polyester and UR1600 |
UR1700 at 1.0 gal./100 sq. ft. |
AC5900 at 1.0 gal./100 sq. ft. |
5 Year
(Option B / Reinforced / 5% Ponding) |
CS AC5600-5 |
PR3900 at .5 gal./100 sq. ft. |
FA240 in urethane or acrylic base coat |
AC5600 at 2.5 gal./100 sq. ft. |
AC5600 at 1.0 gal./100 sq. ft. |
| 10 Year (Unreinforced) (5% Ponding) |
CS AC5900-10 |
PR3900 at .5 gal./100 sq. ft. (double prime areas that do not have uniform appearance.) |
Line all cracks larger than 1/16th inch with FA206 polyester and UR1600 |
UR1700 at 1.5 gal./100 sq. ft. |
AC5900 at 1.5 gal./100 sq. ft. |
| 10 Year (Reinforced) (5% Ponding) |
CS AC5900-10 |
PR3900 at .5 gal./100 sq. ft. |
FA240 in urethane or acrylic base coat |
AC5600 at 2.5 gal./100 sq. ft. |
AC5900 at 2.0 gal./100 sq. ft. |
* Option of 2 separate layers at split millage
Notes:
- For deck applications, use UR1700 for base only
- Sloped and non deck grade systems have the option of AC5900
- Add material to account for rough surfaces
- Consult Coatings International Roofing Systems for additional options.
FOR ADDITIONAL INFORMATION, GO TO:
Brochure
Master Guide Specifications
See also:
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