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PLYWOOD ROOF & DECK WATERPROOFING MASTER GUIDE SPECIFICATIONS

Revised May 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 DETAILING OF JOINTS
2.06 FLASHINGS AND CANTS - MASTIC METHOD
2.07 FLASHINGS - POLYESTER REINFORCED
2.08 FIELD LINER/BASE COAT - REINFORCED SYSTEMS
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 GENERALup.gif

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:

    1. Cleaning and preparation of substrate
    2. Application of primers
    3. Detailing of flashings and penetrations
    4. Application of base coat, mid coat, finish coat on roof surface

1.02 SUBMITTALSup.gif

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 ASSURANCEup.gif

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 REQUIREMENTSup.gif

A. CODE:

All work including disposal of materials shall be in compliance with applicable local building codes.

1.05 DELIVERY AND STORAGEup.gif

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 CONDITIONSup.gif

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 WARRANTYup.gif

    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:

  1. Coverage is limited to the cost of the new system application.
  2. Warranty does not cover applications over wet roofing.
  3. Roof must have a minimum 1/8th” per foot slope.

PART 2-EXECUTION

2.01 CAUTIONSup.gif

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 MIXINGup.gif

Urethanes and primers will require proper mixing before application as follows:

    PRODUCT MIX TIME
    AC5000, AC5500, AC5600, AC5900, PR3800, PR3900 Two minutes
    UR2100, UR2650 Four minutes (two part)
    UP70 Four minute (two part - five minute digest after mixing)


2.03 SUBSTRATE PREPARATIONup.gif

All splinters of the wood must be removed and all rough areas must be sanded until smooth. Remove dirt and foreign material detrimental for the adhesion or application of roofing. Clean dirt and contaminants. Cross joints of plywood must have blocking to prevent movement with foot traffic. Acceptance of substrate conditions will set liability on the applicator for performance.

2.04 PRIMINGup.gif

  1. Apply first coat of PR3900 at 1/2 gallon/100 square feet leaving no puddles.
  2. Reprime any areas that do not have a uniform appearance.


2.05 DETAILING OF JOINTSup.gif

  1. Trowel UR1700 mastic using a 10” hand trowel over all joints, imperfections in the plywood and nail holes. Allow to skin. Apply a base coat of material over the seam 9” wide. The coating shall be installed at a rate of between 1.5-2.0 gallons/square (24-32 wet mils thickness). Roll the FA206 (6”) wide polyester liner into the wet substrate and set it into the coating.
  2. 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 skin prior to the application of the base coat for the field of the roof.


2.06 FLASHINGS & CANTS - MASTIC METHODup.gif

Mastic can be created by mixing appropriate ratios of D200 powder additive into a urethane (UR1600, UR1700) or acrylic (AC5600, AC5900). Round projections, machine legs, sign posts, guide wire straps, inside and outside corners, etc., can be flashed with the mastic. It may also be 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%

  1. 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.

2.07 FLASHINGS - POLYESTER REINFORCEDup.gif

    Apply polyester reinforcement on areas of significant movement.

  1. 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.
  2. 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.


2.08 FIELD LINER/BASE COAT - REINFORCED SYSTEMSup.gif

  1. Apply the base coat at a rate of 1.5 gallons/square using notched squeegees or the applicator broom for the AC5600. Immediately install the polyester liner into the base coat.
  2. 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 or applicator broom leaving no air pockets or wrinkles.

2.09 APPLICATION OF FINISH COAT(S)up.gif

  1. Pour out coating across the top of the roof and spread out with the notched squeegee applicator tool.
  2. Back roll same area immediately with short nap enamel rollers perpendicular to the squeegee pattern.
  3. Apply second coat perpendicular to the first in the same manner.

2.10 DRAINSup.gif

  1. Remove the existing clamping ring collar and clean the bowl and collar. If there is existing roofing material or contaminants 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.
  2. Fill gaps at transition to drain with mastic.
  3. Cover same area with FA200 polyester liner set with specified top coat if movement is expected. Cut polyester to allow for tapered transition and patch cuts with additional polyester liner. After curing, reinstall clamping ring.


2.11 INSTALLATION OF WALKWAYSup.gif

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 CLEANUPup.gif

MATERIAL CLEANUP SOLVENT
AC5000, AC5500, AC5600, AC5900, PR3800 Water
PR3900 Toluene
UP70 Xylene
UR1600 Xylene
UR1700, UR1900 MEK/Xylene blend
UR2100, UR2650 Xylene

2.13 RECOAT WINDOWSup.gif

    PRODUCT COAT WITHIN IF NOT, APPLY
    AC5000 No Window dot.gif
    AC5500 No Window dot.gif
    AC5600 No Window dot.gif
    AC5900 No Window dot.gif
    PR3800 No Window dot.gif
    PR3900 No Window dot.gif
    UP70 No Window dot.gif
    UR1600 No Window dot.gif
    UR1700 7 days Prime with UP70
    UR1900 No Window dot.gif
    UR2100 No Window v
    UR2650 48 hours Prime with UP70


PART 3 SCHEDULES

3.01 PLYWOOD MATERIALS, APPLICATION & WARRANTYup.gif

WARRANTY
PERIOD		 SYSTEM PRIMER BASE COAT/LINER MID COAT FINISH COAT
10 Year (Reinforced / Non-traffic) PW AC5900-10 dot.gif FA240 on field set in AC5600 at 2.5 gal./sq. 1 coat AC5900 at 1.5 gal./sq. 1 coat AC5900 at 1 gal./sq.
10 Year (Unreinforced / 0% Ponding) PW AC5900-10 PR3900 or AC5600 at .75 gal./sq. UR1700 mastic with FA206 polyester on joints UR1600 at 1.5 gal./sq. AC5900 at 2.0 gal./sq.
10 Year
(Unreinforced / 0% Ponding)		 PW AC5900-10 PR3900 or AC5600 at .75 gal./sq. UR1700 mastic with FA206 polyester on joints UR1700 at 1.5 gal./sq. AC5900 at 1.5 gal./sq.


FOR ADDITIONAL INFORMATION, GO TO:up.gif

Brochure

Master Guide Specifications

See also:

E-mail info@coatingsinternational.com
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This page was last modified December 17, 2005 05:00PM .