Attachment 3 Painting supplemental specifications.docx

Attachment 3 – Supplemental Specifications

SECTION 099113 - EXTERIOR PAINTING

PART 1 – GENERAL

1.1 SUMMARY

A. This Section includes surface preparation and the application of paint systems on the following exterior substrates: 1. Concrete. 2. Steel. 3. Galvanized metal. 4. Wood.

1.2 SUBMITTALS

A. Product Data: For each type of product indicated. B. Samples: For each finish and for each color and texture required. C. Product List: Printout of current "MPI Approved Products List" for each product category specified in Part 2, with the proposed product highlighted.

1.3 QUALITY ASSURANCE

A. MPI Standards: 1. Products: Complying with MPI standards indicated and listed in "MPI Approved Products List." 2. Preparation and Workmanship: Comply with requirements in "MPI Architectural Painting Specification Manual" for products and paint systems indicated. B. Mockups: Apply benchmark samples of each paint system indicated and each color and finish selected to verify preliminary selections made under sample submittals and to demonstrate aesthetic effects and set quality standards for materials and execution.

Other Items:

Final approval of color selections will be based on benchmark samples.

a. If preliminary color selections are not approved, apply additional benchmark samples of additional colors selected by Contracting Officer at no added cost to Government.

1.4 EXTRA MATERIALS

A. Furnish extra materials described below that are from same production run (batch mix) as materials applied and that are packaged for storage and identified with labels describing contents.

1. Quantity:

Furnish an additional 5 percent, but not less than 1 gal. of each material and color applied.

PART 2 - PRODUCTS

2.1 PAINT, GENERAL

A. Material Compatibility:

1. Provide materials for use within each paint system that are compatible with one another, and substrates indicated, under conditions of service and application as demonstrated by manufacturer, based on testing and field experience.

2. For each coat in a paint system, provide products recommended in writing by manufacturers of topcoat for use in paint system and on substrate indicated.

B. Colors: Match existing colors on buildings.

2.2 BLOCK FILLERS

A. Interior/Exterior Latex Block Filler: MPI #4. 1. VOC Content: E Range of E2.

2.3 PRIMERS/SEALERS

A. Alkali-Resistant Primer: MPI #3. 1. VOC Content: E Range of E2.

B. Bonding Primer (Water Based): MPI #17. 1. VOC Content: E Range of E2.

C. Bonding Primer (Solvent Based): MPI #69. 1. VOC Content: E Range of E2.

D. Wood-Knot Sealer: Sealer recommended in writing by topcoat manufacturer for use in paint system indicated.

2.4 QUICK-DRYING ENAMELS

A. Quick-Drying Enamel (Semigloss): MPI #81 (Gloss Level 5).

1. VOC Content: E Range of E2.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine substrates and conditions, with Applicator present, for compliance with requirements for maximum moisture content and other conditions affecting performance of work.

B. Maximum Moisture Content of Substrates: When measured with an electronic moisture meter as follows: 1. Concrete: 12 percent. 2. Masonry (Clay and CMU): 12 percent. 3. Wood: 15 percent. 4. Plaster: 12 percent. 5. Gypsum Board: 12 percent.

C. Verify suitability of substrates, including surface conditions and compatibility with existing finishes and primers.

D. Begin coating application only after unsatisfactory conditions have been corrected and surfaces are dry.

1. Beginning coating application constitutes Contractor's acceptance of substrates and conditions.

3.2 PREPARATION AND APPLICATION

A. Comply with manufacturer's written instructions and recommendations in "MPI Architectural Painting Specification Manual" applicable to substrates and paint systems indicated.

B. Clean substrates of substances that could impair bond of paints, including dirt, oil, grease, and incompatible paints and encapsulants.

1. Remove incompatible primers and reprime substrate with compatible primers as required to produce paint systems indicated.

C. Apply paints to produce surface films without cloudiness, spotting, laps, brush marks, roller tracking, runs, sags, ropiness, or other surface imperfections. Cut in sharp lines and color breaks. Follow up with a brush or roller if a sprayer is used.

D. Protect work of other trades against damage from paint application. Correct damage to work of other trades by cleaning, repairing, replacing, and refinishing, as approved by Contracting Officer, and leave in an undamaged condition.

E. At completion of construction activities of other trades, touch up and restore damaged or defaced painted surfaces.

3.3 EXTERIOR PAINTING

SCHEDULE

A. Concrete Substrates, Nontraffic Surfaces: 1. Latex System: MPI EXT 3.1A.a. Prime Coat: Exterior latex matching topcoat. b. Intermediate Coat: Exterior latex matching topcoat. c. Topcoat: Exterior latex (semigloss).

B. Dressed Lumber Substrates: Including architectural woodwork and doors. 1. Latex System: MPI EXT 6.3L. a. Prime Coat: Exterior latex wood primer. b. Intermediate Coat: Exterior latex matching topcoat. c. Topcoat: Exterior latex (semigloss).

C. Dimension Lumber Substrates, Nontraffic Surfaces: Including board siding. 1. Latex System: MPI EXT 6.2M. a. Prime Coat: Exterior latex wood primer. b. Intermediate Coat: Exterior latex matching topcoat. c. Topcoat: Exterior latex (semigloss).

END of Section.