2. Statement of Work and Specifications.pdf

US Department of Agriculture (USDA)

Statement of Work

ARA, Groveland RS Facility Repairs

Stanislaus National Forest

TABLE OF CONTENTS

Section 011000 Summary Section 013000 Administrative Requirements Section 024100 Demolition Section 061600 Sheathing - USG Section 062000 Finish Carpentry Section 070150.19 Preparation for Re-Roofing Section 072500 Weather Barriers Section 073113 Asphalt Shingles Section 074623 Wood Siding Section 099113 Exterior Painting

ARA, GROVELAND RS FACILITY REPAIRS

SECTION 011000 SUMMARY

PART 1 GENERAL

SCOPE

The project consists of replacing the existing roof system and repainting the Groveland Ranger Station. Work includes demolition of the existing asphalt shingles, and ancillary roof components, repair of sheathing, fascia, as well as other applicable trim, and installation of a new roof system. Also included, is repainting the exterior building with one coat of primer and two coats of exterior paint. Work includes all preparation, including applicable replacement, repair, and/or patching of siding, trim, and other required components.

The contractor shall be responsible for cleanup and proper disposal of all removed building material off government land. All work shall be conducted in accordance with the specifications herein, as specified in the drawings, and in accordance with applicable building code. The contractor shall provide all labor, material, and equipment necessary to perform all the operations for the work specified.

Roof Components and Accessories replacements- Incidental work is necessary work to successfully complete the requirements which are not specifically indicated as a bid item. This includes but not limited to, detachment, removal, preservation, and reinstallation of roof and building mounted electrical and communications lines. All work shall be performed in a manner to minimize ground disturbance.

The contractor shall assess the condition of roof decking and report any deficiencies to the Contracting Officer or designated representative. As presented in the schedule of items, sheathing replacement is included as a square footage bid item. This quantity is an estimate, and payment for the removal and replacement of decking shall be per actual quantity, based on the Government approved replacements. Roof replacement is presented as a lump sum item and includes the replacement of all existing necessary components for a successful roof system. This includes, but not limited to, underlayment, flashing, ridge caps, leak barrier, and fasteners. Re-use of existing roofing products is prohibited without approval from the Contracting Officer.

Repainting Work that is considered part of painting preparation includes, repair or replacement of unsuitable siding, fascia, door/window trim, and miscellaneous trim. This work is presented in the schedule of items as linear footage or square footage bid items. These quantities are an estimate, and payment for the removal and replacement of the said items shall be per actual quantity, based on the Government approved replacements. Ancillary items such as “Z” flashing, weather resistant barriers, caulking, or any other necessary preparatory work is considered incidental to exterior painting.

PROJECT LOCATION

This project is located on the Stanislaus National Forest.

Groveland Ranger Station 24545 State Highway 120, Groveland, CA. 95321

OWNER OCCUPANCY

Owner will continue to occupy the existing building throughout the construction period. The Contractor shall coordinate all work activities with the Owner to minimize disruptions and ensure the Owner’s ongoing operations are maintained. The Contractor shall schedule and perform the Work in a manner that accommodates Owner occupancy at all times.

CONTRACTOR USE OF SITE

Arrange the use of the site and premises in a manner that accommodates the following:

• Owner occupancy.

• Work by Owner.

• Use of site and premises by the public.

Provide access to and from the site as required by applicable laws and as directed by the Owner

• Emergency Building Exits During Construction: Keep all exits required by code open during construction period; provide temporary exit signs if exit routes are temporarily altered.

• Do not obstruct roadways, sidewalks, or other public ways without permit.

Time Restrictions:

Working hours shall be limited to 7:00 a.m. to 6:00 p.m., Monday through Friday, unless otherwise authorized in writing by the Contracting Officer (CO). Any work proposed for weekends or Federal holidays requires prior written authorization from the CO.

PERIOD OF PERFORMANCE

The project contract duration is estimated to have period of performance [POP] of 45 calendar days from the issuance of the Notice to Proceed [NTP]. Work is anticipated to start on July 2026.

Contract time includes delays for weather, locating and transporting supplies and materials, and final site cleanup.

LICENSE REQUIREMENTS

contractors shall possess an active and valid California contractor’s license appropriate for the primarily roofing-related scope of this project. The required license must be active at the time of quote submission and must remain active throughout the entire period of contract performance.

PROJECT MANAGEMENT

The contractor shall appoint a project manager to coordinate all contractor’s activities during construction and to liaise with the contracting officer representative (COR) and/or contracting officer (CO), and project engineer for the USDA forest service. Contractor shall designate in writing an on-site superintendent to be on-site at all times that any construction activities takes place and to coordinate all site work and activities.

SPECIFICATION FORMAT

The specifications are organized into divisions and sections in accordance with the 48-division format and the construction specifications institute (CSI) Masterformat numbering system. All work associated with this roofing project shall be performed in compliance with applicable CSI standards, as well as all local, state, and federal laws and regulations.

END OF SECTION

Section 013000 Administrative Requirements

PART 1 GENERAL

CONTRACTING OFFICER'S REPRESENTATIVE (COR)

Cooperate with the COR in allocating mobilization areas on the site, including locations for field offices, traffic flow, and parking facilities.

Throughout the construction period, coordinate all use of the site and existing facilities with the COR. The Contractor shall comply with all instructions issued by the COR regarding the use of temporary utilities and construction-related facilities.

Submit the following items to the COR through the Contracting Officer:

• Requests for Interpretation

• Requests for Substitution

• Shop Drawings, Product Data, and Samples

• Test and Inspection Reports

• Design Data

• Manufacturer’s Instructions and Field Reports

• Applications for Payment and Change Order Requests

• Progress Schedules

• Correction Punch List and Final Correction Punch List for Substantial Completion

SUBMITTAL PROCEDURES

Submittals shall be submitted to the Contracting Officer in writing via email. The Government reserves the right to approve or reject submissions within 7 business days.

Submittals:

The Contractor shall provide all required submittals for review and approval prior to the start of work. Submittals shall include, but are not limited to, the following:

• Product data for all roofing materials, including underlayment, shingles, flashing, sheathing repair materials, fascia, trim components, adhesives, sealants, and fasteners.

• Manufacturer specifications and installation instructions for the new roof system.

• Paint product data, including primer and exterior paint, demonstrating compliance with the specified one coat of primer and two coats of exterior paint.

• Surface preparation plan for repainting, including methods for replacement, repair, and patching of siding, trim, and other components.

• Waste management and disposal plan outlining the process for cleanup and proper disposal of all removed building materials off government land.

• Construction schedule indicating sequence of work activities, demolition, repairs, installation, painting, and cleanup.

• Safety plan demonstrating compliance with applicable codes, site safety requirements, and project-specific hazards.

• Warranty documentation for roofing materials and installation.

• Qualifications of installers demonstrating experience with projects of similar scope.

Section 024100 Demolition

SECTION INCLUDES

Selective demolition of building elements for alteration purposes.

DEFINITIONS

Demolition: Dismantle, raze, destroy or wreck any building or structure or any part thereof.

Remove: Detach or dismantle items from existing construction and dispose of them off site, unless items are indicated to be salvaged or reinstalled.

Remove and Salvage: Detach or dismantle items from existing construction in a manner to prevent damage. Clean, package, label and deliver salvaged items to Owner in ready-for-reuse condition.

Remove and Reinstall: Detach or dismantle items from existing construction in a manner to prevent damage. Clean and prepare for reuse and reinstall where indicated.

Existing to Remain: Designation for existing items that are not to be removed and that are not otherwise indicated to be salvaged or reinstalled.

REFERENCE STANDARDS

29 CFR 1926 - Safety and Health Regulations for Construction; Current Edition.

PART 3 EXECUTION

GENERAL PROCEDURES AND PROJECT CONDITIONS

Comply with applicable codes and regulations for demolition operations and safety of adjacent structures and the public.

Obtain required permits.

Take precautions to prevent catastrophic or uncontrolled collapse of structures to be removed; do not allow worker or public access within range of potential collapse of unstable structures.

Provide, erect, and maintain temporary barriers and security devices.

Conduct operations to minimize effects on and interference with adjacent structures and occupants.

Do not close or obstruct roadways or sidewalks without permits from authority having jurisdiction.

Conduct operations to minimize obstruction of public and private entrances and exits.

Do not obstruct required exits at any time. Protect people using entrances and exits from removal operations.

Protect existing structures and other elements to remain in place and not removed.

Provide bracing and shoring.

Prevent movement or settlement of adjacent structures.

Stop work immediately if adjacent structures appear to be in danger.

SELECTIVE DEMOLITION FOR ALTERATIONS

Existing construction and utilities indicated on drawings are based on casual field observation and existing record documents only.

Verify construction and utility arrangements are as indicated.

Report discrepancies to COR before disturbing existing installation.

Remove existing work as indicated and required to accomplish new work.

Remove rotted wood, corroded metals, and deteriorated masonry and concrete; replace with new construction indicated.

Remove items indicated on drawings.

Services including, but not limited to, HVAC, Plumbing, Fire Protection, Electrical, and

Telecommunications: Remove existing systems and equipment as indicated.

Maintain existing active systems to remain in operation and maintain access to equipment and operational components.

Where existing active systems serve occupied facilities but are to be replaced with new services, maintain existing systems in service until new systems are complete and ready for service.

Verify that abandoned services serve only abandoned facilities before removal.

Remove abandoned pipe, ducts, conduits, and equipment, including those above accessible ceilings. Remove back to source of supply where possible, otherwise cap stub and tag with identification.

Protect existing work to remain.

Prevent movement of structure. Provide shoring and bracing as required.

Perform cutting to accomplish removal work neatly and as specified for cutting new work.

Repair adjacent construction and finishes damaged during removal work.

Patch to match new work.

DEBRIS AND WASTE REMOVAL

Remove debris, junk, and trash from site.

Leave site in clean condition, ready for subsequent work.

Clean up spillage and wind-blown debris from public and private lands.

Section 061600 Sheathing - USG

Sheathing.

RELATED REQUIREMENTS

Section 072500 - Weather Barriers.

ASTM C1185 - Standard Test Methods for Sampling and Testing Fiber-Cement Flat Sheet, Roofing and Siding Shingles, and Clapboards; 2023.

ASTM D1037 - Standard Test Methods for Evaluating Properties of Wood-Base Fiber and Particle Panel Materials; 2012 (Reapproved 2020).

ASTM D1293 - Standard Test Methods for pH of Water; 2018.

ASTM D3273 - Standard Test Method for Resistance to Growth of Mold on the Surface of

Interior Coatings in an Environmental Chamber; 2021.

ASTM E84 - Standard Test Method for Surface Burning Characteristics of Building

Materials; 2025.

ASTM E136 - Standard Test Method for Assessing Combustibility of Materials Using a

Vertical Tube Furnace at 750 Degrees C; 2024c.

SUBMITTALS

See Section 013000 - Administrative Requirements for submittal procedures.

Specimen warranty.

QUALITY ASSURANCE

Use materials evaluated by Air Barrier Association of America (ABAA).

WARRANTY

Manufacturer Warranty: Provide warranty for material defects and fabrication as noted in manufacturer's documentation. Complete forms in Owner's name and register with manufacturer.

PART 2 PRODUCTS

SHEATHING

Refer to plans.

ACCESSORIES

Fasteners and Anchors:

General: Refer to manufacturer product information for fastener types and requirements.

Structural Panel Roof Decking and Subflooring: High corrosion resistance; epoxy-coated as recommended by manufacturer.

Anchors: Toggle bolt type for anchorage to hollow masonry.

Panel Treatment: Use manufacturer-recommended sealant, transition trips, flashing sheets, termination bars, patching materials, and adhesive tapes at control joints, panel connections, and penetrations.

EXAMINATION

Examine substrates and adjoining construction.

Replace damaged framing before installation of Sheathing. Proceed with installation only after unsatisfactory conditions corrected.

INSTALLATION

Select material sizes to minimize waste.

Reuse and clearly separate scrap for use on-site as accessory components, including shims, bracing, and blocking.

Subflooring: Screw and glue to framing according to manufacturer's requirements and installation guides; staples not permitted.

Roof Sheathing: Secure panels with long dimension perpendicular to framing members, with ends staggered and over firm bearing.

Wall Sheathing: Secure with long dimension perpendicular to wall studs, with ends over firm bearing and staggered, using screws.

Section 062000 Finish Carpentry

Finish carpentry items.

Hardware.

ASTM A153/A153M - Standard Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware; 2023.

Product Data:

Provide manufacturer's product data, storage and handling instructions for factory-fabricated units.

Certificate: Submit labels and certificates required by quality assurance and quality control programs.

FINISH CARPENTRY ITEMS

Exterior Woodwork Items:

Window Casings and Moldings: Softwood; prepare for paint finish.

Soffits and Fascias: Prepare for paint finish.

Brackets, Finials, and Pediments: Prepare for paint finish.

LUMBER MATERIALS

Softwood Lumber: Refer to plans Grading: In accordance with rules certified by ALSC; www.alsc.org.

FASTENINGS

Fasteners for Exterior Applications: Refer to plans

Adhesive: Type recommended by fabricator to suit application.

Lumber for Shimming and Blocking: Softwood lumber of indicated species.

EXAMINATION

Verify adequacy of backing and support framing.

Set and secure materials and components in place, plumb and level.

Carefully scribe work abutting other components, with maximum gaps of 1/32 inch (0.79 mm). Do not use additional overlay trim to conceal larger gaps.

Section 070150.19 Preparation for Re-Roofing

Replacement of existing roofing system in preparation for entire new roofing system.

Removal of existing flashing and counter flashings.

Temporary roofing protection.

Product Data: Submit for each type of material.

Preconstruction Test Reports.

DELIVERY, STORAGE, AND HANDLING

Ensure storage and staging of materials does not exceed static and dynamic load-bearing capacities of roof decking.

FIELD CONDITIONS

Existing Roofing System: Fiberglass Asphalt roofing.

Do not remove existing roofing membrane when weather conditions threaten the integrity of building contents or intended continued occupancy.

Maintain continuous temporary protection prior to and during installation of new roofing system.

Provide notice at least three days before starting activities that will affect normal building operations.

MATERIALS

Patching Materials: Provide necessary materials in accordance with requirements of existing roofing system.

Fasteners: Type and size as required and compatible with existing and new roofing system to resist local wind uplift.

Verify that existing roof surface has been cleared of materials being removed from existing roofing system and ready for next phase of work as required.

PREPARATION

Sweep roof surface clean of loose matter.

Remove loose refuse and dispose of properly off-site.

MATERIAL REMOVAL

Remove only existing roofing materials that can be replaced with new materials as the weather will permit.

Remove metal counter flashings.

Remove all existing roofing membrane, perimeter base flashings, flashings around roof protrusions, pitch pans and pockets, insulation vents, and non-suitable sheathing.

Cut and lay flat any membrane blisters.

Remove damaged insulation and fasteners, can’t strip, and blocking.

Remove vapor retarder, sheathing paper, and underlay.

Repair existing wood deck surface to provide smooth working surface for new roof system.

PROTECTION

Provide temporary protective sheeting over uncovered deck surfaces.

Provide surface drainage from sheeting to existing drainage facilities.

Section 072500 Weather Barriers

PART 1 GENERAL

Water-resistive barriers.

Section 076200 - Sheet Metal Flashing and Trim: Metal flashings installed in conjunction with weather barriers.

DEFINITIONS

Weather Barriers: Materials or assemblies forming water-resistive barriers, air barriers, vapor retarders, or combination of one or more assemblies.

Water-Resistive Barriers: Materials or assemblies installed behind exterior wall coverings;

designed to prevent liquid water from further penetration into exterior wall assembly.

ASTM E84 - Standard Test Method for Surface Burning Characteristics of Building

Materials; 2025.

ASTM E96/E96M - Standard Test Methods for Gravimetric Determination of Water Vapor

Transmission Rate of Materials; 2024a.

ASTM E2178 - Standard Test Method for Determining Air Leakage Rate and Calculation of Air Permeance of Building Materials; 2021a.

ICC (IBC) - International Building Code; Most Recent Edition Adopted by Authority

Having Jurisdiction, Including All Applicable Amendments and Supplements.

NFPA 285 - Standard Fire Test Method for Evaluation of Fire Propagation Characteristics of Exterior Wall Assemblies Containing Combustible Components; 2025.

Product Data: Provide data on material characteristics.

Maintain temperature and humidity recommended by materials manufacturers before, during, and after installation.

WATER-RESISTIVE BARRIERS

Description: Materials installed behind exterior wall coverings; designed to prevent liquid water from further penetration into exterior wall assembly. Primary materials include mechanically applied sheets; accessory materials include flashings and seam tapes.

Refer to plans for specific acceptable products.

Seal and Perimeter Tapes: As recommended by water-resistive barrier manufacturer.

Flashings and Sealants: As recommended by water-resistive barrier manufacturer for application.

Metal Flashings: See Section 076200.

Sealant for Cracks and Joints in Substrates: Resilient elastomeric joint sealant compatible with substrates and weather barrier materials.

Application: Apply at 30 to 40 mil, 0.030 to 0.040 inch (0.76 to 1.02 mm) nominal thickness.

Verify that surfaces and conditions comply with requirements of this section.

Remove projections, protruding fasteners, and loose or foreign matter that might interfere with proper installation.

Clean and prime substrate surfaces to receive adhesives and sealants in accordance with manufacturer's installation instructions.

Install materials in accordance with manufacturer's installation instructions.

Do not leave materials exposed to weather longer than recommended by manufacturer.

Section 073113 Asphalt Shingles

PART 1 GENERAL

SECTION INCLUDES

Asphalt shingle roofing.

Flexible sheet membranes for eave protection, underlayment, and valley protection.

Flashing.

ASTM D1970/D1970M - Standard Specification for Self-Adhering Polymer Modified Bituminous Sheet Materials Used as Steep Roofing Underlayment for Ice Dam Protection; 2025.

ASTM D3161/D3161M - Standard Test Method for Wind Resistance of Steep Slope Roofing Products (Fan-Induced Method); 2020 (Reapproved 2025).

ASTM D3462/D3462M - Standard Specification for Asphalt Shingles Made from Glass Felt and Surfaced with Mineral Granules; 2025.

ASTM D4586/D4586M - Standard Specification for Asphalt Roof Cement; 2025.

ASTM D7158/D7158M - Standard Test Method for Wind Resistance of Asphalt Shingles

(Uplift Force/Uplift Resistance Method); 2020.

ASTM E108 - Standard Test Methods for Fire Tests of Roof Coverings; 2025.

ASTM F1667/F1667M - Standard Specification for Driven Fasteners: Nails, Spikes, and

Staples; 2021a.

NRCA (RM) - The NRCA Roofing Manual; 2025.

Product Data: Provide data indicating material characteristics, performance criteria, and limitations.

Samples: Submit two samples of each shingle color indicating color range and finish texture/pattern ; for color selection.

Manufacturer's Certificate: Certify products meet or exceed specified requirements.

Deliver and store materials with labels intact in manufacturer's unopened packaging until ready for installation.

When storing roofing materials on roofing system ensure no damage occurs to supporting members and other materials.

ASPHALT SHINGLES

Asphalt Shingles: Refer to plans

SHEET MATERIALS

Eave Protection Membrane: Refer to plans Underlayment: Refer to plans

Fasteners: As recommended by manufacturer or building code qualification report or approval.

Products: Refer to plans

FLASHING

Metal Flashings: Provide sheet metal eave edge, gable edge, ridge, ridge vents, open valley flashing, chimney flashing, dormer flashing, and other flashing as indicated.

Form flashings to profiles indicated on drawings.

Form sections square and accurate to profile, in maximum possible lengths, free from distortion or defects detrimental to appearance or performance.

Hem exposed edges of flashings minimum 1/4 inch (6 mm) on underside.

Steel Flashing: Refer to plans Roofing Nails: Refer to plans Asphalt Roof Cement: ASTM D4586/D4586M, asbestos-free.

Lap Cement: Fibrated cutback asphalt type, recommended for use in application of underlayment, free of toxic solvents.

Verify existing conditions prior to starting this work.

Verify roof deck is of sufficient thickness to accept fasteners.

Verify roof penetrations and plumbing stacks are in place and flashed to deck surface.

Verify roof openings are correctly framed.

Verify deck surfaces are dry, free of ridges, warps, or voids.

Seal roof deck joints wider than 1/16 inch (1.5 mm) as recommended by shingle manufacturer.

At areas where eave protection membrane is to be adhered to substrate, fill knot holes and surface cracks with latex filler.

Broom clean deck surfaces before installing underlayment or eave protection.

Protect surrounding areas and adjacent surfaces from damage during execution of this work.

Eave Protection Membrane:

Install eave protection membrane from eave edge to minimum 48 inches (1,220 mm) up-slope beyond interior face of exterior wall.

Install eave protection membrane in accordance with manufacturer's instructions and

NRCA (RM) applicable requirements.

Underlayment:

Roof Slopes Greater Than 4:12: Install underlayment perpendicular to slope of roof, with ends and edges weather lapped minimum 4 inches (100 mm); stagger end laps of each consecutive layer, nail in place, and weather lap minimum 4 inches (100

mm) over eave protection.

Weather lap and seal watertight with plastic cement any items projecting through or mounted on roof.

Valley Protection:

Install flexible flashing in accordance with manufacturer's instructions and NRCA

(RM) applicable requirements.

At Exposed Valleys: Install one layer of sheet metal flashing, minimum 24 inches (600

mm) wide, centered over open valley and crimped to guide water flow. Weather lap joints minimum 2-inch (50 mm) wide band of lap cement along each edge of first layer, press roll roofing into cement, and nail in place minimum 18 inches (450 mm) on center and 1 inch (25 mm) from edges.

Metal Flashing:

Install flashings in accordance with manufacturer's instructions and NRCA (RM) applicable requirements.

Weather lap joints minimum 2 inches (50 mm) and seal weather tight with plastic cement.

Secure in place with nails in accordance with applicable code or manufacturer instructions.

Items Projecting Through or Mounted on Roofing: Flash and seal weather tight with plastic cement.

Shingles:

Install shingles in accordance with manufacturer's instructions and NRCA (RM) applicable requirements.

Fasten individual shingles using two nails per shingle, or as required by manufacturer and local building code, whichever is greater.

Fasten strip shingles using four nails per strip, or as required by manufacturer and local building code, whichever is greater.

Place shingles in straight coursing pattern with 5-inch (125 mm) weather exposure to produce double thickness over full roof area and provide double course of shingles at eaves.

Project first course of shingles 3/4 inches (19 mm) beyond fascia boards.

Extend shingles 1/2 inch (13 mm) beyond face of gable edge fascia boards.

Complete installation to provide weathertight service.

CLEANING

Clean exposed work upon completion of installation; remove grease and oil films, excess joint sealer, handling marks, and debris from installation, leaving work clean and unmarked, free from dents, creases, waves, scratch marks, or other damage to finish.

Do not permit traffic over finished roof surface; protect roofing until completion of project.

Touch-up, repair, or replace damaged asphalt shingles or accessories before Date of

Substantial Completion.

Section 074623 Wood Siding

PART 1 GENERAL

SECTION INCLUDES

Wood siding with panels for walls.

Engineered wood siding with panels for walls.

Section 076200 - Sheet Metal Flashing and Trim: Product requirements for metal flashings and trim associated with wood siding for placement by this section.

APA 303 - Siding Manufacturing Specifications (Form B840); 2019.

APA PRP-108 - Performance Standards and Qualification Policy for Wood Structural

Panels (Form E445); 2021.

ASCE 7 - Minimum Design Loads and Associated Criteria for Buildings and Other

Structures; Most Recent Edition Cited by Referring Code or Reference Standard.

Do not install siding when air temperature or relative humidity are outside manufacturer's limits.

PERFORMANCE REQUIREMENTS

Comply with local wind load resistance requirements of ASCE 7.

Plywood Sheathing: Comply with APA PRP-108 grade or type standards and labeled by

APA certified grading agency.

WOOD SIDING MATERIALS

Panel Siding: Refer to plans

Nails: Refer to plans Flashing: Refer to plans Prime Paint: Refer to plans

Verify that substrates are ready to receive work.

Do not begin until unacceptable conditions have been corrected.

If substrate preparation is the responsibility of another installer, notify Architect of unsatisfactory preparation before proceeding.

Protect surrounding areas and adjacent surfaces during execution of this work.

Prime paint surfaces in contact with cementitious materials.

Install siding, soffits, batten strips, and trim in accordance with manufacturer's instructions.

Fasten siding securely in place, level and plumb.

Arrange for orderly nailing pattern, blind nail except over trim.

Install siding for natural shed of water.

Position cut ends over bearing surfaces, and sand cut edges smooth and clean.

Seal exposed wood substrates exposed to weather to prevent water accumulation and moisture intrusion.

Seal penetrations.

Seal exposed cuts of siding and trim; use of field-applied coatings is not permitted.

Install metal flashings at internal and external corners, sills, heads of wall openings, and horizontal joints of sheet materials.

Sand work smooth and set exposed nails and screws.

Section 099113 Exterior Painting

PART 1 GENERAL

SECTION INCLUDES

Surface preparation.

Field application of paints.

Scope: Finish exterior surfaces exposed to view, unless fully factory-finished and unless otherwise indicated.

Do Not Paint or Finish the Following Items:

Items factory-finished unless otherwise indicated; materials and products having factory-applied primers are not considered factory finished.

Items indicated to receive other finishes.

Items indicated to remain unfinished.

Fire rating labels, equipment serial number and capacity labels, and operating parts of equipment.

Glass.

Concealed pipes, ducts, and conduits.

ASTM D4442 - Standard Test Methods for Direct Moisture Content Measurement of Wood and Wood-Based Materials; 2020 (Reapproved 2025).

MPI (APSM) - Master Painters Institute Architectural Painting Specification Manual;

Current Edition.

See Section 013000 - Administrative Requirements, for submittal procedures.

Product Data: Provide a complete list of products to be used, with the following information for each:

Manufacturer's name, product name and/or catalog number, and general product category (e.g. "alkyd enamel").

MPI product number (e.g. MPI #47).

Cross-reference to specified paint system(s) product is to be used in; include description of each system.

Samples: Submit three paper "draw down" samples, 8-1/2 by 11 inches (216 by 279 mm) in size, illustrating range of colors available for each finishing product specified.

Where sheen is specified, submit samples in only that sheen.

Maintenance Materials: Furnish the following for Owner's use in maintenance of project.

See Section 016000 - Product Requirements, for additional provisions.

Extra Paint and Finish Materials: 1 gallon (4 L) of each color; from the same product run, store where directed.

Label each container with color in addition to the manufacturer's label.

Deliver products to site in sealed and labeled containers; inspect to verify acceptability.

Container Label: Include manufacturer's name, type of paint, brand name, lot number, brand code, coverage, surface preparation, drying time, cleanup requirements, color designation, and instructions for mixing and reducing.

Paint Materials: Store at minimum ambient temperature of 45 degrees F (7 degrees C) and a maximum of 90 degrees F (32 degrees C), in ventilated area, and as required by manufacturer's instructions.

Do not apply materials when surface and ambient temperatures are outside the paint product manufacturer's temperature ranges.

Follow manufacturer's recommended procedures for producing best results, including testing of substrates, moisture in substrates, and humidity and temperature limitations.

Do not apply exterior paint and finishes during rain or snow, or when relative humidity is outside the humidity ranges required by the paint product manufacturer.

Minimum Application Temperatures for Latex Paints: 50 degrees F (10 degrees C) for exterior, unless required otherwise by manufacturer's instructions.

Provide lighting level of 80 ft candles (860 lx) measured mid-height at substrate surface.

PAINTS AND FINISHES - GENERAL

Paints and Finishes: Ready-mixed, unless required to be a field-catalyzed paint.

Provide paints and finishes of a soft paste consistency, capable of being readily and uniformly dispersed to a homogeneous coating, with good flow and brushing properties, and capable of drying or curing free of streaks or sags.

Supply each paint material in quantity required to complete entire project's work from a single production run.

Do not reduce, thin, or dilute paint or finishes or add materials unless such procedure is described explicitly in manufacturer's product instructions.

PAINT SYSTEMS - EXTERIOR

Paint E-OP - Exterior Surfaces to be Painted, Unless Otherwise Indicated: Including primed wood and primed metal.

Two top coats and one coat primer.

PRIMERS

Primers: Provide the following unless other primer is required or recommended by manufacturer of top coats.

Latex Primer for Exterior Wood-Refer to plans

Products: Refer to plans Accessory Materials: Provide primers, sealers, cleaning agents, cleaning cloths, sanding materials, and clean-up materials as required for final completion of painted surfaces.

Patching Material: Latex filler.

Fastener Head Cover Material: Latex filler.

Do not begin application of paints and finishes until substrates have been properly prepared.

Verify that surfaces are ready to receive work as instructed by the product manufacturer.

Examine surfaces scheduled to be finished prior to commencement of work. Report any condition that may potentially affect proper application.

Test shop-applied primer for compatibility with subsequent cover materials.

Measure moisture content of surfaces using an electronic moisture meter. Do not apply finishes unless moisture content of surfaces are below the following maximums:

Exterior Wood: 15 percent, measured in accordance with ASTM D4442.

Clean surfaces thoroughly and correct defects prior to application.

Prepare surfaces using the methods recommended by the manufacturer for achieving the best result for the substrate under the project conditions.

Remove or repair existing paints or finishes that exhibit surface defects.

Remove or mask surface appurtenances, including electrical plates, hardware, light fixture trim, escutcheons, and fittings, prior to preparing surfaces for finishing.

Seal surfaces that might cause bleed through or staining of topcoat.

Remove mildew from impervious surfaces by scrubbing with solution of tetra-sodium phosphate and bleach. Rinse with clean water and allow surface to dry.

Exterior Wood Surfaces to Receive Opaque Finish: Remove dust, grit, and foreign matter.

Seal knots, pitch streaks, and sappy sections. Fill nail holes with tinted exterior calking compound after prime coat has been applied. Back prime concealed surfaces before installation.

APPLICATION

Exterior Wood to Receive Opaque Finish: If final painting must be delayed more than 2 weeks after installation of woodwork, apply primer within 2 weeks and final coating within 4 weeks.

Apply products in accordance with manufacturer's written instructions and recommendations in "MPI Architectural Painting Specification Manual".

Do not apply finishes to surfaces that are not dry. Allow applied coats to dry before next coat is applied.

Apply each coat to uniform appearance.

Vacuum clean surfaces of loose particles. Use tack cloth to remove dust and particles just prior to applying next coat.

Reinstall electrical cover plates, hardware, light fixture trim, escutcheons, and fittings removed prior to finishing.

CLEANING

Collect waste material that could constitute a fire hazard, place in closed metal containers, and remove daily from site.

Protect finishes until completion of project.

Touch-up damaged finishes after Substantial Completion.

Panel Treatment: Use manufacturer-recommended sealant, transition trips, flashing sheets, termination bars, patching materials, and adhesive tapes at control joints, panel connections, and penetrations.

Certificate: Submit labels and certificates required by quality assurance and quality control programs.