DESCRIPTION OF WORK:

1. Extent of coating system is specified herein.

SCOPE (WORK SPECIFIED HEREIN):

1. Supply all labor, materials, transportation, storage facilities, equipment and services necessary to install spray applied Acrylic Elastomer Membrane.

SUBMITTALS/QUALIFICATIONS:

1. Submit Evidence that bidders are qualified to install Tech Guard EC-100 spray applied Acrylic Elastomer Membrane.
   
2. Submit Technical data sheets and supplier-contractor warranty for EC-100 Acrylic Elastomer Membrane.
   
3. Submit evidence that Acrylic Elastomer Membrane TECHGUARD EC-100 is V.O.C. compliant and environmentally safe.
   
4. Workmen qualifications must have at least 5 years experience in spray applied Acrylic Elastomer Membrane with a minimum of 1,000,000 square feet installed.
   
5. Submit a copy of standard 5 year warranty for the coating or 10 year standard warranty for coating, millage dependant.

PRIMER:

1. Primer shall be manufacturer recommended and applied at a rate of 1/3 of a gallon per 100 square feet. Primer shall be used at a contractor’s discretion.
   
2. Primer is not always necessary, and is to be used at contractor’s discretion.

MATERIALS:

1. Protective Coating
   1. Pro-Tech Products, Inc. EC-100 manufactured with EC-1791 meeting the following physical and performance properties and must be D-6083 tested by independent third party lab. Lab cannot be resin manufacturer.
      
   2. Elongation
      1. Initial Elongation @ 73˚ F D-2370 = 210%
      2. Initial Elongation @ 0˚ F D-2370 = 16%
      3. Elongation after Weathering @ 73˚ F D-2370 = 160
   3. Tensile
      1. Tensile Strength @ 73˚ F D-2370 = 350 PSI
      2. Tensile Strength @ 0˚ F D-2370 = 2573 PSI
   4. Permeance D-1653 = 7.03 perms
   5. Water Swelling D-471 = 5.14%
   6. Fungi Resistance G-21 = zero
   7. Tear Resistance D-624 = 63.041 BF
   8. Low Temp Flexibility (after aging) D-522 = Pass ½” mandrel bend.
   9. Weathering (1000 hrs xenon) = Pass no cracking or checking.
   10. Fire Rating
       1. UL 790 Class A

PREPARATION / COMMENCEMENT OF WORK:

1. Notify the owner’s representative and visitors to the site of potential fugitive overspray.
   
2. Cars, etc., will be moved or covered to prevent inadvertent spraying. Contractor shall coordinate subcontractor traffic during roof operations.
   
3. Provide all barricades as required and place them in a way to be considered by all parties in an adequate and sufficient number so that there is no doubt that the area is completely barricaded off.
   
4. Use appropriate barricading methods to shelter walking traffic from the work area’s equipment and overspray.
   
5. Any damage caused during this construction process shall be restored to pre-project condition or replaced at the Contractor’s expense in accordance with section 01010.
   
6. Provide protective covering as needed to protect building walls, adjacent structures and vegetation, etc., from the effects of the spraying process.
   
7. When work is finished, no evidence of re-roofing shall be visible from the ground level, other than the work on the roofing plane.

PROTECTIVE COATING:

1. Preparation
   
   1. Surfaces to be coated shall be completely grease free, oil, dirt or other contaminates which will interfere with coating adhesion.
      
   Surface shall be completely dry and frost-free before coating.

ACRYLIC ELASTOMERIC MEMBRANE SYSTEM

1. Fluid Applied Waterproofing
   
   1. Spray apply elastomeric membrane over insulation at a rate of 1 ½ gallons per 100
      square feet. Allow to cure.
      
   2. Spray apply second coat of Elastomeric Membrane over entire roof surface at the rate of
      1 ½ gallons per square feet. Allow to cure.
      
   3. For a three coat system apply all coats at the rate of 1 ¼ gallons per 100 square feet in
      three coats.
      
   4. Any two or three coat system must utilize contrasting color to insure even millage. I.E.
      Two coat system, first coat gray, second coat white; or three coat system, first coat white, second coat gray, third coat white.
      
   5. No foot traffic shall be permitted on completed roof surface for a minimum of three days.

CORE SAMPLING:

1. Slit samples may be taken to insure millage on initial basecoat. All slits must be repaired using a single component urethane caulk.
   
2. On three coat systems, slit samples should be taken after the second coat has been applied and allowed to dry. All slits shall be repaired using a single component urethane caulk.
   
3. No slit samples will be taken after the final topcoat has been applied. Millage will be tested using a wet film gauge during final topcoat and the mathematical volume solids will be calculated to determine total millage.