Attachment 2 - Exteriors Phase 3 SPECS_6 July 2021.pdf

PROJECT:

MAINTAIN EXTERIOR COATING

Building # 2804, 3710, 4106, 4116, 6950, 7320

PROJECT NUMBER: MAHG14-1001

W/O 83539

6 July 2021

KEESLER AIR FORCE BASE BILOXI, MISSISSIPPI

Keesler AFB 508 L Street Keesler AFB, MS 39534

MAHG14-1001

INDEX

SECTION NAME

00 10 20 DRAWING LIST – SPECIFICATION FRONT END

01 30 00 SUBMITTALS

07 92 00 JOINT SEALANTS

09 01 70 REPAIR OF EXTERIOR INSULATION FINISH SYSTEMS

09 90 00 PAINTING AND COATING

SECTION 00 10 20

LIST OF DRAWINGS

PART 1 GENERAL

1.1 SUMMARY

This document lists the drawings for the project.

1.2 CONTRACT DRAWINGS

Contract drawings are as follows:

DRAWING No.

T1.0 A1.0 A1.1 A1.2 A1.3 A1.4

TITLE

TITLE SHEET

2804 – 2nd AIR FORCE

3710/4106 – LARCHER CHAPEL / DRAGON FITNESS

4116 - DOLAN HALL

6950 – CONNER MANOR

7320 – HOLBROOK MANOR

END OF SECTION

SECTION 01 30 00

SUBMITTAL PROCEDURES

PART 1 GENERAL

1.0 SUMMARY (Not Applicable)

1.1 REFERENCES (Not Applicable)

1.2 SUBMITTAL CLASSIFICATION

1.2.1 Submittals are classified as follows:

1.2.1.1 Contracting Officer Approval: The Contracting Officer (CO) approval is required for extensions of design, critical materials, deviations, equipment whose compatibility with the entire system must be checked, and other items as designated by the CO. Within the terms of the Contract Clause entitled "Specifications and Drawings for Construction", they are considered to be "shop drawings."

1.2.1.2 Information Only: All submittals not requiring the Government approval will be for information only. They are not considered to be "shop drawings" within the terms of the Contract Clause referred to above.

1.3 APPROVED SUBMITTALS:

The approval of submittals by the CO shall not be construed as a complete check, but will indicate only that the general method of construction, materials, detailing and other information are satisfactory.

Approval will not relieve the Contractor of the responsibility for any error, which may exist, as the Contractor is responsible for the dimensions and design of adequate connections, details and satisfactory construction of all work. After submittals have been approved by the CO, no resubmittal for the purpose of substituting materials or equipment will be given consideration unless accompanied by an explanation as to why a substitution is necessary.

1.4 DISAPPROVED SUBMITTALS:

The Contractor shall make all corrections required by the CO and promptly furnish a corrected submittal in the form and number of copies as specified for the initial submittal. If the Contractor considers any correction indicated on the submittals to constitute a change to the contract, notice as required under the Contract Clause entitled "Changes" shall be given promptly to the CO.

PART 2 EXECUTION

2.0 GENERAL:

The Contractor shall submit all items listed on the Submittal Register (Material Submittal Schedule (MSS), or equivalent) or specified in the other sections of these specifications. The CO may request submittals in addition to those listed when deemed necessary to adequately describe the work covered in the respective sections. Units of weights and measures used on all submittals shall be the same used in the contract drawings. Submittals shall be made in three (3) copies unless otherwise noted on the Submittal Register to the CO. Each submittal shall be complete and in sufficient detail to allow ready determination of compliance with contract requirements.

Prior to submittal, all items shall be checked and approved and each respective transmittal form or material approval submittal (AF 3000, Material Approval Submittal) shall be stamped, signed and dated by the Contractor certifying that the accompanying submittal complies with the contract requirements. Submittals shall include line number of item from Government-prepared Submittal Register. Proposed deviations from the contract requirements shall be clearly identified. Submittals shall include items such as: Contractor's, manufacturer's, or fabricator's drawings; descriptive literature including (but not limited to) catalog cuts, diagrams, operating charts or curves; test reports; test cylinders; samples; O&M manuals including parts list;

certifications; warranties and other such required submittals. Submittals requiring CO approval shall be scheduled and made prior to the acquisition of the material or equipment covered thereby.

2.1 SUBMITTAL REGISTER: Material Submittal Schedule (MSS):

A Submittal Register on the MSS shall be provided to the Contractor as an attachment to the awarded contract. During the pre-construction meeting, the Contractor shall meet with the CO to jointly review the CO prepared Submittal Register. The Contractor shall be responsible for providing all items listed on the Submittal Register in accordance with the scheduled submittal dates.

2.2 SCHEDULING:

Submittals covering component items forming a system or items that are interrelated, shall be scheduled to be coordinated and submitted concurrently. Certifications to be submitted with the pertinent drawings shall be so scheduled. The Contractor shall take special care to timely schedule the submittal date required for long lead-time items and shall allow 30 days for CO review action on all submittals except as noted below. No delays, damages, or time extensions will be allowed for time lost in late submittals.

All submittals will be made on AF 3000, Material Approval Submittal as specified below.

2.2.1 The number of days for CO action on the following submittals will be as indicated:

2.2.1.1 Submittals required on the MSS – 10 calendar days.

2.2.1.2 Any submittal that requests or requires deviation from contract drawings or specifications – 14 calendar days.

2.3 TRANSMITTAL FORM (AF 3000, Material Approval Submittal):

AF 3000, Material Approval Submittal shall be used for submitting both Government approved and information only submittals in accordance with the instructions on the reverse side of the form. These forms will be furnished to the Contractor by the CO. This form shall be properly completed by filling out all the heading blank spaces and identifying each item submitted.

Special care will be exercised to ensure proper listing of the specification paragraph and/or sheet number of the contract drawings pertinent to the data submitted for each item.

2.4 CONTROL OF SUBMITTALS:

The Contractor shall carefully control his procurement operations to ensure that each individual submittal is made on or before the Contractor scheduled submittal date shown on the provided Submittal Register.

2.5 CO APPROVED SUBMITTALS:

Upon completion of review of submittals requiring CO approval, the submittals will be identified as having received approval by being so noted on AF 3000, Material Approval Submittal. Such submittals shall be made in accordance with the Construction Contract Clause entitled "Specifications and Drawings for Construction" and the following: unless otherwise noted on the Submittal Register and when submitting physical documents, three (3) prints of all drawings; or, if catalog cuts, printed specifications or similar publications are used as submittals, three (3) original copies shall be submitted. One corrected copy shall be returned to the Contractor. When submitting documents for review and approval via email, only one copy is required. In cases where "trade names or equal" specifications are used, any equal substitution by the Contractor will be considered a deviation and will require approval. Any submittal requesting a deviation shall be considered as one requiring "approval" action. Payment for materials incorporated into the work will not be allowed if required approvals have not been obtained. Upon completion of review of submittals requiring CO approval, the submittals will be identified as having received approval by being so noted on AF 3000, Material Approval Submittal.

2.6 INFORMATION ONLY SUBMITTALS:

All other submittals are considered to be "Information Only" submittals and may be subject to review action by the CO or may be simply receipt acknowledged. Any submittal “For Information Only” shall be clearly marked “FIO”. Normally, submittals for information only will not be returned. Approval of the Construction Manager (CM) is not required on information only submittals. These submittals will be used for information purposes. The CO reserves the right to require the Contractor to resubmit any item found not to comply with the contract. This does not relieve the Contractor from the obligation to furnish material conforming to the plans and specifications and will not prevent the CO from requiring removal and replacement if nonconforming material is incorporated in the work. This also does not relieve the Contractor of the requirement to furnish samples for testing by the CO laboratory or check testing by the CO, in those instances where the technical specifications so prescribe. It shall be the Contractor's responsibility of assuring that the materials and/or equipment covered by that submittal meets the contract requirements. Any such "For Information Only" submittal found to contain errors or omissions shall be resubmitted as one requiring "approval" action. All "For Information Only" submittals shall be made in triplicate unless otherwise specified.

SECTION 07 92 00_1/6

SECTION 07 92 00

JOINT SEALANTS

PART 1 GENERAL

1.1 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

ASTM INTERNATIONAL (ASTM)

ASTM C1311 (2010) Standard Specification for Solvent Release Agents

ASTM C509 (2006; R 2011) Elastomeric Cellular Preformed Gasket and Sealing Material

ASTM C734 (2006; R 2012) Low-Temperature Flexibility of Latex Sealant After Artificial Weathering

ASTM C834 (2010) Latex Sealants

ASTM C919 (2012) Use of Sealants in Acoustical Applications

ASTM C920 (2011) Standard Specification for Elastomeric Joint Sealants

ASTM D1056 (2007) Standard Specification for Flexible Cellular Materials - Sponge or Expanded Rubber

ASTM D1667 (2005; R 2011) Flexible Cellular Materials - Poly (Vinyl Chloride) Foam (Closed-Cell)

ASTM D217 (2010) Cone Penetration of Lubricating Grease

ASTM D2452 (2003; R 2009) Standard Test Method for Extrude-ability of Oil- and Resin-Base Caulking Compounds

ASTM D2453 (2003; R 2009) Standard Test Method for Shrinkage and Tenacity of Oil- and Resin-Base Caulking Compounds

ASTM E84 (2012c) Standard Test Method for Surface Burning Characteristics of Building Materials

1.2 SUBMITTALS

Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

A. SD-03 Product Data

1. Sealants

2. Primers

3. Bond breakers

4. Backstops

Manufacturer's descriptive data including storage requirements, shelf life, curing time, instructions for mixing and application, and primer data (if required). Provide a copy of the Material Safety Data Sheet for each solvent, primer or sealant material.

SECTION 07 92 00_2/6

B. SD-07 Certificates

1. Sealant

2. Certificates of compliance stating that the materials conform to the specified requirements.

1.3 ENVIRONMENTAL CONDITIONS

Apply sealant when the ambient temperature is between 4 and 32 degrees C 40 and 90 degrees F.

1.4 DELIVERY AND STORAGE

Deliver materials to the job site in unopened manufacturers' external shipping containers, with brand names, date of manufacture, [color,] and material designation clearly marked thereon.

Label elastomeric sealant containers to identify type, class, grade, and use. Carefully handle and store materials to prevent inclusion of foreign materials or subjection to sustained temperatures exceeding 32 degrees C 90 degrees F or less than 4 degrees C 0 degrees F.

1.5 QUALITY ASSURANCE

1.4.1 Compatibility with Substrate

Verify that each of the sealants are compatible for use with joint substrates.

1.4.2 Joint Tolerance

Provide joint tolerances in accordance with manufacturer's printed instructions.

1.6 SPECIAL WARRANTY

Guarantee sealant joint against failure of sealant and against water penetration through each sealed joint for five (5) years.

PART 2 PRODUCTS

2.1 SEALANTS

Provide sealant that has been tested and found suitable for the substrates to which it will be applied.

2.1.1 Interior Sealant

Provide ASTM C834 [ASTM C920, Type S or M, Grade NS, Class 12.5, Use NT. Location(s) and color(s) of sealant for the following:

1. Location: Small voids between walls and door frames, built-in or surface-mounted equipment and fixtures, and similar items.

2. Color: As selected by Designer of Record

2.1.2 Floor Joint Sealant

Provide ASTM C920, Type S or M, Grade P, Class 25, Use T. Provide location(s) and color(s) of sealant as follows:

1. Location: Seats of metal thresholds for exterior doors.

2. Color: As selected by Designer of Record

SECTION 07 92 00_3/6

2.2 PRIMERS

Provide a non-staining, quick-drying type and consistency recommended by the sealant manufacturer for the particular application.

2.3 BOND BREAKERS

Provide the type and consistency recommended by the sealant manufacturer to prevent adhesion of the sealant to backing or to bottom of the joint.

2.4 BACKSTOPS

Provide glass fiber roving or neoprene, butyl, polyurethane, or polyethylene foams free from oil or other staining elements as recommended by sealant manufacturer. Provide 25 to 33 percent oversized backing for closed cell and 40 to 50 percent oversized backing for open cell material, unless otherwise indicated. Make backstop material compatible with sealant. Do not use oakum and other types of absorptive materials as backstops.

2.5 CLEANING SOLVENTS

Provide type(s) recommended by the sealant manufacturer (except for aluminum and bronze surfaces that will be in contact with sealant).

PART 3 EXECUTION

3.1 SURFACE PREPARATION

Clean surfaces from dirt frost, moisture, grease, oil, wax, lacquer, paint, or other foreign matter that would tend to destroy or impair adhesion.

Remove oil and grease with solvent. Surfaces must be wiped dry with clean cloths. When resealing an existing joint, remove existing caulk or sealant prior to applying new sealant. For surface types not listed below, contact sealant manufacturer for specific recommendations.

3.1.1 Steel Surfaces

Remove loose mill scale by sandblasting or, if sandblasting is impractical or would damage finish work, scraping and wire brushing. Remove protective coatings by sandblasting or using a residue-free solvent.

3.1.2 Aluminum or Bronze Surfaces

Remove temporary protective coatings from surfaces that will be in contact with sealant. When masking tape is used as a protective coating, remove tape and any residual adhesive just prior to sealant application. For removing protective coatings and final cleaning, use non-staining solvents recommended by the manufacturer of the item(s) containing aluminum or bronze surfaces.

3.1.3 Concrete and Masonry Surfaces

Where surfaces have been treated with curing compounds, oil, or other such materials, remove materials by sandblasting or wire brushing. Remove laitance, efflorescence and loose mortar from the joint cavity.

SECTION 07 92 00_4/6

3.1.4 Wood Surfaces

Keep wood surfaces to be in contact with sealants free of splinters and sawdust or other loose particles.

3.2 SEALANT PREPARATION

Do not add liquids, solvents, or powders to the sealant. Mix Multi-component elastomeric sealants in accordance with manufacturer's instructions.

3.3 APPLICATION

A. Acceptable Ratios:

JOINT WIDTH JOINT DEPTH

Minimum Maximum

For metal, glass, or other nonporous surfaces:

6 mm (minimum) 6 mm 6 mm over 6 mm 1/2 of width Equal to width

For wood, concrete, or masonry.

6 mm (minimum) 6 mm 6 mm over 6 mm to 13 mm 6 mm Equal to width over 13 mm to 50 mm 50 mm 16 mm

Over 50 mm As recommended by sealant manufacturer

For metal, glass, or other nonporous surfaces:

1/4 inch (minimum) 1/4 inch 1/4 inch

For wood, concrete, or masonry.

1/4 inch (minimum) 1/4 inch 1/4 inch over 1/4 inch to 1/2 inch 1/4 inch Equal to width over 1/2 inch to 2 inch 1/2 inch 5/8 inch

Over 2 inch As recommended by sealant manufacturer over 1/4 inch 1/2 of width Equal to width

SECTION 07 92 00_5/6

B. Unacceptable Ratios: Where joints of acceptable width-to-depth ratios have not been provided, clean out joints to acceptable depths and grind or cut to acceptable widths without damage to the adjoining work. Grinding is not required on metal surfaces.

3.3.2 Masking Tape

Place masking tape on the finish surface on one or both sides of a joint cavity to protect adjacent finish surfaces from primer or sealant smears. Remove masking tape within 10 minutes after joint has been filled and tooled.

3.3.3 Backstops

Install backstops dry and free of tears or holes. Tightly pack the back or bottom of joint cavities with backstop material to provide a joint of the depth specified. Install backstops in the following locations:

1. Where backstop is not indicated but joint cavities exceed the acceptable maximum depths specified in paragraph entitled, "Joint Width-to-Depth Ratios".

3.3.4 Primer

Immediately prior to application of the sealant, clean out loose particles from joints. Where recommended by sealant manufacturer, apply primer to joints in concrete masonry units, wood, and other porous surfaces in accordance with sealant manufacturer's instructions. Do not apply primer to exposed finish surfaces.

3.3.5 Bond Breaker

Provide bond breakers to the back or bottom of joint cavities, as recommended by the sealant manufacturer for each type of joint and sealant used, to prevent sealant from adhering to these surfaces. Carefully apply the bond breaker to avoid contamination of adjoining surfaces or breaking bond with surfaces other than those covered by the bond breaker.

3.3.6 Sealants

Provide a sealant compatible with the material(s) to which it is applied. Do not use a sealant that has exceeded shelf life or has jelled and cannot be discharged in a continuous flow from the gun.

Apply the sealant in accordance with the manufacturer's printed instructions with a gun having a nozzle that fits the joint width. Force sealant into joints to fill the joints solidly without air pockets.

Tool sealant after application to ensure adhesion. Make sealant uniformly smooth and free of wrinkles. Upon completion of sealant application, roughen partially filled or unfilled joints, apply sealant, and tool smooth as specified. Apply sealer over the sealant when and as specified by the sealant manufacturer.

3.4 PROTECTION AND CLEANING

3.4.1 Protection

Protect areas adjacent to joints from sealant smears. Masking tape may be used for this purpose if removed 5 to 10 minutes after the joint is filled.

SECTION 07 92 00_6/6

3.4.2 Final Cleaning

Upon completion of sealant application, remove remaining smears and stains and leave the work in a clean and neat condition.

1. Masonry and Other Porous Surfaces: Immediately scrape off fresh sealant that has been smeared on masonry and rub clean with a solvent as recommended by the sealant manufacturer. Allow excess sealant to cure for 24 hour then remove by wire brushing or sanding. Metal and Other Non-Porous Surfaces: Remove excess sealant with a solvent-moistened cloth.

-- End of Section --

09 01 70-1/9

SECTION 09 01 70

REPAIR OF EXTERIOR INSULATION AND FINISH SYSTEM (EIFS)

PART 1 GENERAL

1.1 SUMMARY

A. Repair distress and construction deficiencies of exterior insulation and finish system (EIFS) cladding.

B. Repair nonstructural EIFS base coat and finish.

C. Repair flashing and waterproofing deficiencies at EIF system terminations.

D. Resurface wall to provide uniform appearance in accordance with owner’s requirements.

1.2 SUBMITTALS

A. EIFS, repair materials, and coating manufacturers’ specifications, details, installation instructions and product data.

B. Samples for approval as directed by architect, engineer, or owner.

C. Manufacturer’s standard material warranty for each product or system to be used.

D. A list of minimum three job references.

1.3 REFERENCES

A. ASTM Standards

• ASTM C 578 Specification for Foam Plastic Insulation

• ASTM C 920 Specification for Elastomeric Joint Sealants

• ASTM C 1382 Specification for Sealants for EIFS

• ASTM E 2430 Specification for EIFS Reinforcing Mesh

• ASTM E 2568 Specification for EIFS

• ASTM E 2570 Specification for Water-resistive Barrier Coatings

1.4 DESIGN REQUIREMENTS

A. Determine repair scope and detail design requirements based on inspection of the field conditions.

B. Provide crack repair detail for cracks not wider than 1/16-inch (1.6 mm) nominal width

C. Provide crack repair detail for cracks wider than 1/16-inch (1.6 mm) but not wider than 1/8-inch (3.2 mm)

D. Provide flashing installation, repair and/or replacement details for applicable conditions and indicate locations of each repair on project drawings. Flashing remediation shall be based on standard flashing requirements listed below and indications of distress or leakage observed during inspection.

1. Provide head flashing above all window and door openings.

a) Provide flashing at the bottom of the EIF system.

b) Provide flashing at floor line expansion joints in multi-story construction.

c) Terminate EIFS minimum 2-inches (51 mm) above paved grade and roofing materials.

d) Terminate EIFS minimum 4-inches (102 mm) above soil and landscaped finished grades. (Note: verify local code requirements and comply with them for minimum distance above grade for EIFS termination.)

09 01 70-2/9

E. Provide metal cap flashing for parapets. Cap flashing shall be sloped to drain water onto the roof system.

F. Provide metal flashing for non-vertical or low slope projections to drain water away from the wall exterior.

1.5 QUALITY ASSURANCE

A. Manufacturer’s requirements

• EIFS material manufacturer shall be experienced provider of cementitious and polymer-based materials for use in EIFS construction and repair for minimum 25 years.

• EIFS manufacturer shall have a manufacturing quality control system that is certified to comply with ISO 9001-2008 and an environmental quality management system certified to comply with ISO 14001-2004.

• EIFS manufacturer shall have current valid code evaluation reports which list the EIFS materials to be used.

B. Contractor requirements

• Contractor shall be licensed and insured and shall have been engaged in EIFS and EIFS repair construction for minimum three years.

• Contractor shall be knowledgeable in the proper handling, use and installation of the specified materials..

• Contractor shall employ skilled mechanics who are experienced and knowledgeable in the repair procedures and requirements of the specified project.

• Contractor shall have completed minimum three projects of similar size, scope and complexity to the project being specified.

• Contractor shall provide the proper equipment, manpower and supervision on the job site to perform the repair procedures in accordance with the manufacturer’s published repair specifications, applicable details and the contract documents.

C. Inspection requirements

D. Quality control inspections shall be provided for by the owner or owner’s representative.

E. Inspectors shall be qualified by experience to evaluate field conditions before and during the repair process and shall be familiar with the specified repair procedures prior to commencement of work.

F. Inspections shall be provided at key intervals during each repair.

G. Inspect locations of flashing repair and other locations where existing EIFS must be removed after demolition of the EIFS is completed and before any existing flashing is removed. Verify that the proposed repair is constructible and will function in the manner intended based on the visible conditions. Resolve any visible construction detail conflicts with the repair designer before allowing the contractor to proceed with the repair.

H. Inspect the condition of the water-resistive barrier and transition elements for visible evidence of material integrity and continuity of the system.

I. Inspect the conditions of newly installed or replaced flashing and water-resistive barrier components before installing the replacement insulation. Verify that flashing and water-resistive barrier installation is in accordance with the repair detail design.

09 01 70-3/9

Verify visible continuity of the water-resistive barrier system to direct water to the exterior of the wall via the flashing.

J. Inspect the final appearance of each repair location to verify compliance with owner requirements.

1.6 DELIVERY, STORAGE AND HANDLING

A. Deliver all materials in their original sealed containers bearing manufacturer’s name and product identification.

B. Protect liquid products (pails) from freezing and temperatures greater than 90 degrees F (32 degrees C). Do not store in direct sunlight.

C. Protect portland cement based materials (bag products) from moisture and humidity. Store under cover and off of the ground in a dry location.

1.7 PROJECT/SITE CONDITIONS

A. Apply materials only when surface and ambient temperatures are above 40 degrees F (4 degrees C) and are expected to remain above 40 degrees F (4 degrees C) for 24 hours after application.

B. Provide supplementary heat for installation in temperatures less than 40 degrees F (4 degrees C).

C. Provide protection of surrounding areas and adjacent surfaces from spillage, splatter, overspray or other unintended contact with the materials that are being applied.

1.8 COORDINATION AND SCHEDULING

A. Schedule repairs to permit inspections where specified in Section 1.05.

B. Do not start repairs in an area unless sufficient work can be completed such that the area is weather-tight at the end of the work shift. Alternatively allow sufficient time before the end of the work shift to provide temporary weather protection until work can resume.

C. Coordinate with all trades involved to schedule work to result in the proper sequencing of materials within the repair (proper lapping of water resistive system components and flashing).

D. Schedule finish and coating application to large areas such that each day’s application will end at an architectural break.

1.9 1.10 WARRANTY

A. Provide manufacturer’s standard warranty for products used.

PART 2 PRODUCTS

2.1 MANUFACTURERS

A. Provide EIFS component materials and coatings from a single manufacturer:

1. Bases of specification: Sto Corp., 3800 Camp Creek PKWY, Building 1400, Suite 120, Atlanta, GA 30331.

09 01 70-4/9

2. Or equal

2.2 WATER-RESISTIVE BARRIER

(Use appropriate barrier as required to match existing conditions)

A. Provide water-resistive barrier coating and transition membrane system.

• Products:

• Sto Gold Coat – fluid-applied waterproof air-barrier coating for moisture protection of sheathing, masonry and concrete substrates behind EIFS.

• Sto Gold Fill – knife-grade, trowel-applied transition material for use with Sto Gold Coat and StoGuard Mesh as transition at flashing, windows, mechanical penetrations and at system terminations.

• StoGuard Tape – fabric-faced, self-adhesive modified asphaltic flashing tape for use with Sto Gold Coat as transition at flashing, windows, mechanical penetrations and at system terminations. (may be alternate to or used with Sto Gold Fill).

• StoGuard Fabric – non-woven fabric tape for use with Sto Gold Coat as a transition element by embedment of the StoGuard Fabric into wet Sto Gold Coat. Used as transition membrane from Sto Gold Coat onto top edge of StoGuard Tape. (may be alternate to Sto Gold Fill with StoGuard Mesh)

2.3 ADHESIVE

(Use appropriate adhesive as required to match existing conditions)

A. Cementitious Adhesives

1. BTS Plus – one component, polymer-modified, high build adhesive (for use over exterior glass mat faced gypsum sheathing (compliant with ASTM C 1177), exterior cementitious sheathing, concrete, masonry or cement plaster surfaces.

Also used over Exposure 1 OSB and plywood sheathing when protected with StoGuard).

2. BTS Xtra – Lightweight, one component, polymer-modified, high build adhesive (for use over exterior glass mat faced gypsum sheathing (compliant with ASTM C 1177), exterior cementitious sheathing, concrete, masonry or cement plaster surfaces. Also used over Exposure 1 OSB and plywood sheathing when protected with StoGuard).

3. Primer/Adhesive-B – one component, polymer-modified, adhesive (for use over exterior glass mat faced gypsum sheathing (compliant with ASTM C 1177), exterior cementitious sheathing, concrete, masonry or cement plaster surfaces.

Also used over Exposure 1 OSB and plywood sheathing when protected with StoGuard).

4. Primer/Adhesive – two component, polymer-modified, adhesive (for use over exterior glass mat faced gypsum sheathing (compliant with ASTM C 1177), exterior cementitious sheathing, concrete, masonry or cement plaster surfaces.

Also used over Exposure 1 OSB and plywood sheathing when protected with StoGuard). Combined in the field with portland cement.

5. Sto TurboStick – Urethane spray foam adhesive for use adhering insulation board for localized repairs and filling gaps in insulation at the perimeter of localized repairs.

2.4 INSULATION BOARD

09 01 70-5/9

A. Nominal 1.0 pcf (16 kg/cu.m.) Expanded Polystyrene (EPS) insulation board in compliance with ASTM E 2430 and ASTM C 578, Type I requirements. (Note:

minimum required thickness is 1 inch (25 mm) and maximum allowable thickness is 12 inches (305 mm) when installed in accordance with ICC-ES ESR 1748).

2.5 BASE COAT

(Use appropriate base coat as required to match existing conditions)

A. Cementitious Base Coats (see 2.03 for product descriptions)

• BTS Plus

• BTS Xtra

• Primer/Adhesive-B

• Primer/Adhesive

B. Non-Cementitious Base Coat

1. Sto RFP – single component, ready-mixed, non-cementitious fiber reinforced acrylic base coat.

C. Waterproof Base Coat

• Sto Flexyl – two component fiber-reinforced acrylic-based waterproof base coat mixed in the field with portland cement (provided by others). Use with reinforcing mesh where waterproofing is required.

• Sto Watertight Coat – two component, pre-proportioned acrylic based waterproof base coat. Combine two components in field. Use with reinforcing mesh where waterproofing is required.

2.6 GLASS FIBER MESH REINFORCEMENT

(Use appropriate mesh as required to match existing conditions)

A. Provide alkali resistant, open weave glass fiber mesh reinforcing for surface leveling and waterproof base coat.

• Products:

• Sto Mesh – alkali-resistant, glass-fiber reinforcing mesh for use with Sto base coat products to provide crack resistance.

• Sto Detail Mesh – alkali-resistant, glass-fiber reinforcing mesh for use with Sto base coats to provide crack resistance and at system terminations.

• StoGuard Mesh – self-adhesive mesh for use with Sto Gold Fill water resistive barrier joint and transition treatment.

• Sto Armor Mat – high impact resistant, 15 oz. per sq.yd. alkali resistant, glass-fiber reinforcing mesh.

• Sto Armor Mat XX – ultra-high impact resistant, 20 oz. per sq.yd.

alkali resistant glass-fiber reinforcing mesh.

2.7 PRIMER

(Use appropriate primer as required to match existing conditions)

A Provide acrylic primer .

1. Sto Primer Sand

2. Sto Primer Smooth

3. Sto Hot Prime

09 01 70-6/9

2.8 POLYMERIC FINISH

A. Provide polymeric acrylic EIFS finish to match existing.

2.9 ACRYLIC CRACK FILLER

A. Provide acrylic crack filler.

1. Products:

a. Sto Flexible Crack Filler – acrylic-based crack filler packaged in sealant tube for use (unreinforced) in repair of cracks not wider than 1/16-inch (1.6 mm) and up to 1/8-inch (3.2 mm) wide with mesh reinforcement.

2.10 PORTLAND CEMENT

A. Provide ASTM C 150 Type I, Type II, or Type I-II cement for mixing with Sto Primer/Adhesive and/or Sto Flexyl.

2.11 ARCHITECTURAL COATING

A. Provide architectural coating to provide uniform appearance to repaired walls.

• Provide horizontal-rated coating for additional weather resistance to top surfaces of projecting elements where Sto waterproof base coat has been applied.

2.12 SEALANT

A. Sealant shall be low-modulus, comply with ASTM C 920, ASTM C 1382 and be recommended for use with EIFS by the sealant manufacturer.

2.13 MIXING

A. Mix in accordance with manufacturer’s printed instructions.

B. Mix cementitious products with clean, potable water.

2.14 EIFS FASTNERS

A. Provide fasteners and washer plates for reattachment of EIFS which is not bonded to substrate.

• Provide fastener type, size and length based on fastener manufacturer’s recommendations for the substrate conditions.

• Provide ULP-402, surface mounted, plastic washer plates, or equivalent.

B. Acceptable Manufacturer

1. Wind-Lock Corporation, Leesport, PA, (800) 872-5625, www.wind-lock.com, or equal.

PART 3 EXECUTION

3.1 ACCEPTABLE INSTALLERS

A. Prequalify repair contractor under Quality Assurance requirements of this specification http://www.wind-lock.com/

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3.2 EXAMINATION

A. Inspect locations identified on the project drawings for repair.

1. Establish clear understanding of the repair scope and process with the mechanics that will perform the work for each individual location.

3.3 SELECTIVE DEMOLITION

A. Remove and replace EIFS in areas requiring localized repair as indicated on the project drawings.

B. Use hearing, eye, ear and respiratory personal protective equipment when performing demolition.

C. Provide adequate protection to persons and property from potential falling debris from demolition and repair construction.

D. Comply with local environmental regulations with regard to handling and disposal of construction waste produced by selective EIFS demolition.

E. Comply with StoTherm EIFS Repair and Maintenance Guide available at www.stocorp.com.

F. Limit the depth of cuts through the EIFS lamina into the insulation board to prevent damage of the substrate.

G. Remove damaged insulation board by hand or in a manner which minimizes damage to the substrate.

H. Remove and replace damaged substrate as required by conditions that may become evident as a result of the demolition process.

3.4 FLASHING REPLACEMENT

A. Repair flashing and/or correct conditions in locations indicated on the project drawings and as described in section 1.04 of this specification.

B. Remove EIFS in accordance with section 3.01 of this specification.

C. Remove enough area to permit proper installation of flashing as detailed in Sto Corp.

guideline details for water-resistive barrier and EIFS construction.

D. Inspect the condition of the water-resistive barrier membrane and transition materials.

E. Repair or replace damaged water resistive barrier system components.

F. Install replacement components in a sequence and manner to provide shingle-laps and provide a continuous path for moisture drainage to the exterior of the wall via the flashing.

G. Install new flashing components such that the completed repair will comply with Sto Corp.

guideline details for EIFS construction.

H. Mix and apply EIFS materials in accordance with printed instructions for the products being used.

3.5 EIFS DAMAGE REPAIR

A. Perform repairs in accordance with StoTherm EIFS Reference Guide :Repair and Maintenance: (available at www.stocorp.com) http://www.stocorp.com/

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• Repair impact damage to EIFS including damaged substrate, insulation, base coat reinforcing mesh and finish in locations indicated on the project drawings.

.1 Determine the exact scope of individual repairs based on inspection at the time of selective demolition.

• Repair cracks in EIFS finish and lamina where indicated on project drawings.

B. Reattach EIFS which has delaminated from the substrate, if not specified to be removed and replaced, as indicated on the project drawings.

C. Establish stud locations in frame construction and install fasteners into framing members at intervals specified by the design professional as required to meet project wind load requirements. Maximum fastener spacing shall be 12 in. on- center.

(Note: Pre-drilling may be beneficial for 18-gage steel framing and heavier.)

D. Install fasteners through the existing lamina using the plastic washer plates making sure not to penetrate or fracture the lamina with the fastener plate as the fastener is driven into place. The fastener plate shall be slightly dimpled when finally set into place.

E. Install fasteners so as to provide a snug fit, and a uniformly secure attachment of the EIFS.

F. Pre-spot fasteners with base coat and allow to dry.

G. Apply base coat and embed reinforcing mesh in the wet base coat. Overlap seams minimum 2-1/2 inches (64 mm) and double wrap inside and outside corners.

H. Apply base coat with mesh reinforcement at sufficient thickness to cover the washer plates and provide a flat surface to receive finish.

I. If necessary apply a skim coat of base coat over the mesh-reinforced base coat to provide a flat surface.

J. Allow base coat to fully dry before application of primer or finish.

K. Apply Sto Pimer to dried base coat, if specified. Primer is an optional component for most EIFS finishes, consult the product literature for the finish being used to determine if primer is required.

1. Apply Sto finish to dried base coat or primed base coat.

3.6 SEALANT JOINT REPAIR

A. Remove damaged and worn sealant at joints in EIFS in accordance with StoTherm EIFS Reference Guide :Repair and Maintenance:

• Protect surrounding EIFS from damage during removal of existing sealant.

• Replace sealant with approved low-modulus material recommended by the sealant manufacturer for use with EIFS.

• Install sealant in accordance with sealant manufacturer’s published installation instructions for use with EIFS materials. Use sealant primer recommended by the sealant manufacturer on base coat surface if specified by the sealant manufacturer.

3.7 SURFACE REPAIR AND RECOATING

C. Surface leveling for finish texture change:

• Apply unreinforced skim coat to existing finish surfaces to level surface in preparation for new finish application. (choose 1)

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• Sto RFP:

• Apply Sto RFP to existing finish and pull tight to fill low areas in finish and provide flat surface to receive new textured finish.

• Allow Sto RFP to fully dry before applying finish.

• Sto BTS Xtra L. Apply Sto BTS Xtra over textured cementitious finish and pull tight to fill low areas in finish and provide flat surface to receive new textured finish.

M. Allow Sto BTS Xtra to fully dry before applying finish.

♦ Skim Coat with additional mesh to provide impact resistance:

.1 Apply glass-fiber mesh reinforced base coat in accordance with the applicable Sto Insulated Wall Cladding Specification for the products and system being used.

♦ Skim Coat Surface-Applied Waterproofing

.1 Apply glass fiber mesh reinforced waterproof base coat to areas specified on the project drawings. (Choose one)

.1 Sto Flexyl .1 Mix Sto Flexyl with portland cement in accordance with Sto written instructions.

3.8 FINISH

I. Apply Sto Flexyl to prepared base coat or finish to a nominal 1/16- inch (1.6 mm) thickness.

J. Fully embed Sto Mesh into Sto Flexyl K. Allow Sto Flexyl to dry completely before finish application.

D. Sto Watertight Coat

• Mix Sto Watertight Coat components A and B in accordance with Sto written instructions.

• Apply Sto Watertight Coat to prepared base coat or finish to a nominal 1/16-inch (1.6 mm) thickness.

• Fully embed Sto Mesh into Sto Watertight Coat.

• Allow Sto Watertight Coat to dry completely before finish application.

.1 Apply Sto finish in accordance with Sto written instructions for the specified product.

3.9 COATING

N. Prepare surface to receive Sto coating in accordance with Sto reStore Cleaning specification.

O. Apply Sto coating in accordance with Sto written instructions for the specified product.

Section 09 90 00_1/17

SECTION 09 90 00 – PAINTING AND COATING

PART 1 – GENERAL

1.1 SUMMARY

A. Extent of painting work is shown on drawings and schedules, and as herein specified.

1. Exterior painting, including surface preparation.

2. Painting of existing surfaces is to be performed only where indicated on Drawings.

B. "Paint" as used herein means all coating systems materials, including primers, emulsions, enamels, stains, varnishes, sealers and fillers, and other applied materials whether used as prime, intermediate or finish coats.

C. Following categories of work are not included as part of field-applied finish work, or are included in other sections of these specifications.

1. Shop Priming:

a. Unless otherwise specified, shop priming of ferrous metal items is included under various sections for structural steel, steel joists, metal fabrications, hollow metal work, and similar items. Also, for factory built mechanical and electrical equipment or accessories.

2. Pre-finished Items:

a. Unless otherwise indicated, do not include painting when factory-finishing or installer finishing is specified for such items as (but not limited to) windows, plastic laminate, acoustical materials and finished mechanical and electrical equipment, including light fixtures.

3. Concealed Surfaces:

a. Unless otherwise indicated, painting is not required on surfaces such as walls or ceilings in concealed areas and generally inaccessible areas, furred areas, pipe spaces, and duct shafts.

b. Backprime finished woodwork and cabinets. Use primer specified for exposed surfaces.

4. Finished Metal Surfaces:

a. Metal surfaces of anodized aluminum, stainless steel, chromium plate, bronze and similar finished materials will not require finish painting, unless otherwise indicated.

5. Operating Parts and Labels:

a. Moving parts of operating units, mechanical and electrical parts, such as valve and damper operators, linkages, sinkages, sensing devices, motor and fan shafts will not require finish painting, unless otherwise indicated. Do not paint over any code-required labels, such as Underwriters' Laboratories and Factory Mutual, or any equipment identification, performance rating, name or nomenclature plates.

Section 09 90 00_2/17

6. Do not paint concrete or floors, unless specifically indicated.

7. Gypsum wallboard joint preparation is included in Gypsum Wallboard Section.

1.2 SUBMITTALS

A. Product Data:

1. Provide manufacturer's printed product data on all coatings specified, including preparation and application instructions.

B. Selection Samples:

1. Provide two sets of samples not less than one by two inches in size illustrating range of colors and textures available for each finishing product specified.

C. Verification Samples:

1. Provide two samples of not less than six inches square illustrating selected color and texture for each finishing product specified.

1.3 QUALITY ASSURANCE

A. Job Sample:

1. Prior to start of painting, paint full size field sample of each individual color scheduled on each respective substrate. Paint sample at site, where directed, of workmanship to be expected in the completed work. Obtain Contracting Officer’s acceptance of the sample before start of work. If sample is accepted, the sample may become part of the finished project.

1.4 DELIVERY, STORAGE, AND HANDLING

A. Deliver materials to job site in original, new and unopened packages and containers bearing manufacturer's name and label and following minimum information:

1. Name or title of materials

2. Manufacturer's name

3. Thinning instructions

4. Application instructions

5. Color name and number

B. Store paint products in covered, ventilated area at minimum ambient temperature of 45 degrees F and maximum ambient temperature of 90 degrees F.

1.5 PROJECT CONDITIONS

A. Apply water-base paints only when temperature of surfaces to be painted and surrounding air temperatures are between 50 degrees F. (10 Celsius) and 90 degrees F. (32 Celsius), unless otherwise permitted by paint manufacturer's printed instructions.

B. Apply solvent-thinned paints only when temperature of surfaces to be painted and surrounding air temperatures are between 45 degrees F. (7 Celsius) and 95 degrees F. (35

Section 09 90 00_3/17

Celsius), unless otherwise permitted by paint manufacturer's printed instructions.

C. Do not apply paint in snow, rain, fog or mist; or when relative humidity exceeds 85%; or to damp or wet surfaces, unless otherwise permitted by paint manufacturer's printed instructions.

D. Painting may be continued during inclement weather if areas and surfaces to be painted are enclosed and heated within temperature limits specified by paint manufacturer during application and drying periods.

1.6 EXTRA MATERIALS

1. At project closeout, supply the Owner or owner's representative one gallon of each product for touch-up purposes. Cans shall be clearly marked with color name, number and type of paint.

2. At project closeout, provide the color mixture name and code to the Owner or owner's representative for accurate future color matching.

1.7 WARRANTY

3. Inspection of all surfaces to be coated must be done by the manufacturer's representative to insure proper preparation prior to application. All thinners, fillers, primers and finish coatings shall be from the same manufacturer to support a product warranty. Products other than those submitted shall be accompanied by a letter stating its fitness for use and compatibility.

4. At project closeout, provide to the Owner or owner's representative an executed copy of the Manufacturer's standard form outlining the terms and conditions of and any exclusions to their Limited Warranty against Manufacturing Defect.

PART 2 – PRODUCTS

2.1 MANUFACTURERS

A. Acceptable Manufacturers, Or Approved Equal:

1. Benjamin Moore (Basis of Specification, other manufacturers to be cross referenced)

2. Sherwin-Williams Company

3. Glidden Professional

B. Unless otherwise specified for an individual product or material, supply all products specified in this section from the same manufacturer.

2.2 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.

Section 09 90 00_4/17

B. VOC Content of Field-Applied Interior Paints and Coatings: Provide products that comply with the following limits for VOC content, exclusive of colorants added to a tint base, when calculated according to 40 CFR 59, Subpart D (EPA Method 24); these requirements do not apply to paints and coatings that are applied in a fabrication or finishing shop:

1. Flat Paints, Coatings, and Primers: VOC content of not more than 50 g/L.

2. Nonflat Paints, Coatings, and Primers: VOC content of not more than 150 g/L.

3. Anti-Corrosive and Anti-Rust Paints Applied to Ferrous Metals: VOC not more than 250 g/L.

4. Shellacs, Clear: VOC not more than 730 g/L.

5. Shellacs, Pigmented: VOC not more than 550 g/L.

6. Primers, Sealers, and Undercoaters: VOC content of not more than 200 g/L.

2.3 MIXING AND TINTING

A. Except where specifically noted in this section, all paint shall be ready-mixed and pre-tinted.

Agitate all paint prior to and during application to ensure uniform color, gloss, and consistency.

B. Thinner addition shall not exceed manufacturer's printed recommendations. Do not use kerosene or other organic solvents to thin water-based paints.

2.4 EXTERIOR PAINT SYSTEMS: The following paragraphs utilize a specific name brand as a baseline standard. Approved “or equal” brands may be utilized instead, as determined in paragraph 2.1 of specification section 09 90 00.

A. CONCRETE (Cementitious Siding, Flexboard, Transite Board, Shingles (Non-Roof), Common Brick, Stucco, Tilt-up, Precast, and Poured-in-place Cement).

1.1 Latex Systems:

A. Gloss Finish:

1. 1st Coat: Benjamin Moore Super Spec® Interior/Exterior Acrylic High Build Masonry Primer N068 (97g/L), MPI # 3, LEED 2009.

2. 2nd Coat: Benjamin Moore Ben Waterborne Exterior Soft-Gloss 543 (45 g/L), MPI # 11.

3. 3rd Coat: Benjamin Moore Ben Waterborne Exterior Soft-Gloss 543 (45 g/L), MPI # 11.

B. Semi-Gloss Finish:

1. 1st Coat: Benjamin Moore Super Spec® Interior/Exterior Acrylic High

Build Masonry Primer N068 (97g/L), MPI # 3, LEED 2009.

2. 2nd Coat: Benjamin Moore Regal Select Exterior High-Build Soft-Gloss

N403 (43 g/L), MPI # 11, 311.

3. 3rd Coat: Benjamin Moore Regal Select Exterior High-Build Soft-Gloss

N403 (43 g/L), MPI # 11, 311.

C. Satin Finish:

1. 1st Coat: Benjamin Moore Super Spec® Interior/Exterior Acrylic High Build Masonry Primer N068 (97g/L), MPI # 3, LEED 2009.

2. 2nd Coat: Benjamin Moore Ultra Spec EXT Satin N448 (46 g/L), MPI # 15.

3. 3rd Coat: Benjamin Moore Ultra Spec EXT Satin N448 (46 g/L), MPI # 15.

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D. Satin Finish:

1. 1st Coat: Benjamin Moore Super Spec® Interior/Exterior Acrylic High

Build Masonry Primer N068 (97g/L), MPI # 3, LEED 2009.

2. 2nd Coat: Benjamin Moore Regal Select Exterior High-Build Low Lustre

N401 (40 g/L), MPI # 15, 315.

3. 3rd Coat: Benjamin Moore Regal Select Exterior High-Build Low Lustre

N401 (40 g/L), MPI # 15, 315.

E. Flat Finish:

1. 1st Coat: Benjamin Moore Super Spec® Interior/Exterior Acrylic High Build Masonry Primer N068 (97g/L), MPI # 3, LEED 2009.

2. 2nd Coat: Benjamin Moore ben Waterborne Exterior Flat 541 (44 g/L), MPI # 10.

3. 3rd Coat: Benjamin Moore ben Waterborne Exterior Flat 541 (44 g/L), MPI # 10.

F. Flat Finish:

1. 1st Coat: Benjamin Moore Super Spec® Interior/Exterior Acrylic High

Build Masonry Primer N068 (97g/L), MPI # 3, LEED 2009.

2. 2nd Coat: Benjamin Moore Regal Select Exterior High-Build Flat Finish

N400 (42 g/L) MPI # 10.

3. 3rd Coat: Benjamin Moore Regal Select Exterior High-Build Flat Finish

N400 (42 g/L) MPI # 10.

G. High Build Coating:

1. 1st Coat: Coronado Texcrete WB Acrylic Masonry Waterproofer Smooth Finish 3194 (90 g/L), LEED Credit.

1.2 Elastomeric System: Not including cementitious siding, Flexboard, Transite board or shingles (non-roof).

A. Flat Finish:

1. 1st Coat: Benjamin Moore Super Spec® Interior/Exterior Acrylic High Build Masonry Primer N068 (97g/L), MPI # 3, LEED 2009.

2. 2nd Coat: Benjamin Moore Super Spec® Masonry 100% Acrylic Elastomeric Coating Flat 056 (99 g/L).

3. 3rd Coat: Benjamin Moore Super Spec® Masonry 100% Acrylic Elastomeric Coating Flat 056 (99 g/L).

1.3 Textured and Smooth Systems:

A. Textured (Water Based Finish):

1. 1st Coat: Coronado Texcrete WB Acrylic Masonry Waterproofer Smooth 3194 (90 g/L), LEED Credit.

2. 2nd Coat:

a. Finish Texture- Fine: Coronado Texcrete WB Acrylic Masonry

Waterproofer Sand Finish 3192 (78 g/L), LEED Credit.

b.