36E77618R0092-0004003.pdf

VAMC DES MOINES VA PROJECT NO. 636-123 AUGUST 2018

COMMUNITY LIVING CENTER SCHEMMER NO. 06054.032 ADDENDUM 2

COTTAGE 1

00 01 10-1

DEPARTMENT OF VETERANS AFFAIRS

VHA MASTER SPECIFICATIONS

TABLE OF CONTENTS

Section 00 01 10

VOLUME 1

DIVISION 00 - SPECIAL SECTIONS

00 01 15 List of Drawing Sheets

00 31 32 Geotechnical Data

DIVISION 01 - GENERAL REQUIREMENTS

01 00 00A Statement of Bid Items

01 00 00B General Requirements

01 32 16.15 Project Schedules

01 33 23 Shop Drawings, Product Data, and Samples

01 33 24 Electronic Submittal Procedures

01 35 26 Safety Requirements

01 42 19 Reference Standards

01 45 29 Testing Laboratory Services

01 74 19 Construction Waste Management

01 91 00 General Commissioning Requirements

DIVISION 02 – EXISTING CONDITIONS

02 41 00 Demolition

DIVISION 03 – CONCRETE

03 30 00 Cast-in-Place Concrete

03 45 00 Architectural Precast Concrete

DIVISION 04 – MASONRY

04 05 13 Masonry Mortaring

04 72 00 Cast Stone Masonry

DIVISION 05 – METALS

05 12 00 Structural Steel Framing

05 31 00 Steel Decking

05 36 00 Composite Metal Decking

05 40 00 Cold-Formed Metal Framing

05 50 00 Metal Fabrications

05 51 00 Metal Stairs

DIVISION 06 – WOOD,PLASTICS AND COMPOSITES

06 10 00 Rough Carpentry

06 16 63 Cementitious Sheathing

00 01 10-2

06 20 00 Finish Carpentry

06 64 00 Plastic Paneling

DIVISION 07 - THERMAL AND MOISTURE PROTECTION

07 08 00 Facility Exterior Closure Commissioning

07 13 00 Sheet Waterproofing

07 13 52 Modified Bituminous Sheet Waterproofing

07 21 13 Thermal Insulation

07 22 00 Roof and Deck Insulation

07 27 27 Fluid-Applied Membrane Air Barrier, Vapor Retarding

07 31 13 Asphalt Shingles (Alternate)

07 31 14 Stone Coated Metal Roof Shingle

07 46 46 Fiber-Cement Siding

07 53 23 Ethylene-Propylene-Diene-Monomer Roofing

07 60 00 Flashing and Sheet Metal

07 71 00 Roof Specialties

07 72 00 Roof Accessories

07 84 00 Firestopping

07 92 00 Joint Sealants

07 95 13 Expansion Joint Cover Assemblies

DIVISION 08 - OPENINGS

08 11 13 Hollow Metal Doors and Frames

08 14 00 Interior Wood Doors

08 31 13 Access Doors and Frames

08 33 00 Coiling Doors and Grilles

08 41 13 Aluminum-Framed Entrances and Storefronts

08 52 00 Aluminum Windows

08 71 00 Door Hardware

08 71 13 Automatic Door Operators

08 80 00 Glazing

08 90 00 Louvers and Vents

DIVISION 09 – FINISHES

09 05 16 Subsurface Preparation for Floor Finishes

09 06 00 Schedule for Finishes

09 22 16 Non-Structural Metal Framing

09 29 00 Gypsum Board

09 30 13 Ceramic/Porcelain Tiling

09 51 00 Acoustical Ceilings

09 65 13 Resilient Base and Accessories

09 65 16 Resilient Sheet Flooring

09 67 23.60 Resinous Urethane and Epoxy Mortar Flooring

09 68 00 Carpeting

09 72 16 Vinyl Coated Wallcovering

09 91 00 Painting

00 01 10-3

DIVISION 10 – SPECIALTIES

10 14 00 Signage

10 21 23 Cubicle Curtain Tracks

10 26 00 Wall Protection

10 28 00 Toilet, Bath, and Laundry Accessories

10 44 13 Fire Extinguisher Cabinets

10 51 26 Plastic Lockers

DIVISION 11 – EQUIPMENT

11 40 10 Equipment

DIVISION 12 – FURNISHINGS

12 31 00 Metal Casework

12 32 00 Manufactured Wood Casework

12 36 00 Countertops

VOLUME 2

DIVISION 21- FIRE SUPPRESSION

21 08 00 Commissioning of Fire Suppression System

21 13 13 Wet-Pipe Sprinkler Systems

DIVISION 22 – PLUMBING

22 05 11 Common Work Results for Plumbing

22 05 12 General Motor Requirements for Plumbing Equipment

22 05 19 Meters and Gages for Plumbing Piping

22 05 23 General-Duty Valves for Plumbing Piping

22 07 11 Plumbing Insulation

22 08 00 Commissioning of Plumbing Systems

22 11 00 Facility Water Distribution

22 11 23 Domestic Water Pumps

22 13 00 Facility Sanitary and Vent Piping

22 13 23 Sanitary Waste Interceptors

22 13 33 Packaged, Submersible Sewerage Pump Units

22 14 29 Sump Pumps

22 35 00 Domestic Water Heat Exchangers

22 62 00 Vacuum Systems for Laboratory and Healthcare Facilities

22 63 00 Gas Systems for Laboratory and Healthcare Facilities

00 01 10-4

DIVISION 23 – HEATING, VENTILATING, AND AIR CONDITIONING

(HVAC)

23 05 11 Common Work Results for HVAC

23 05 12 General Motor Requirements for HVAC and Steam Generation

Equipment

23 05 41 Noise and Vibration Control for HVAC Piping and Equipment

23 05 93 Testing, Adjusting, and Balancing for HVAC

23 07 11 HVAC and Boiler Plant Insulation

23 08 00 Commissioning of HVAC Systems

23 09 23 Direct-Digital Control System for HVAC

23 21 13 Hydronic Piping

23 21 23 Hydronic Pumps

23 22 13 Steam and Condensate Heating Piping

23 22 23 Steam Condensate Pumps

23 23 00 Refrigerant Piping

23 25 00 HVAC Water Treatment

23 31 00 HVAC Ducts and Casings

23 34 00 HVAC Fans

23 36 00 Air Terminal Units

23 37 00 Air Outlets and Inlets

23 38 13 Commercial-Kitchen Hoods

23 73 00 Indoor Central-Station Air-Handling Units

23 81 00 Decentralized Unitary HVAC Equipment

23 82 00 Convection Heating and Cooling Units

VOLUME 3

DIVISION 25 – INTEGRATED AUTOMATION

25 10 10 Advanced Utility Metering System

DIVISION 26 – ELECTRICAL

26 05 11 Requirements for Electrical Installations

26 05 13 Medium-Voltage Cables

26 05 19 Low-Voltage Electrical Power Conductors and Cables

26 05 26 Grounding and Bonding for Electrical Systems

26 05 33 Raceway and Boxes for Electrical Systems

26 05 41 Underground Electrical Construction

26 05 73 Overcurrent Protective Device Coordination Study

26 08 00 Commissioning of Electrical Systems

26 09 23 Lighting Controls

26 12 19 Pad-Mounted, Liquid-Filled, Medium-Voltage Transformers

26 22 00 Low-Voltage Transformers

26 24 16 Panelboards

26 27 26 Wiring Devices

26 29 11 Motor Controllers

26 29 21 Enclosed Switches

26 36 23 Automatic Transfer Switches

26 41 00 Facility Lightning Protection

26 43 13 Surge Protective Devices

26 51 00 Interior Lighting

00 01 10-5

26 56 00 Exterior Lighting

DIVISION 27 – COMMUNICATIONS

27 05 11 Requirements for Communications Installations

27 05 26 Grounding and Bonding for Communications Systems

27 05 33 Raceways and Boxes for Communications Systems

27 08 00 Commissioning of Communications Systems

27 10 00 Structured Cabling

27 11 00 Communications Equipment Room Fittings

27 15 00 Communications Horizontal Cabling

27 41 31 Master Antenna Television Equipment and Systems

27 51 16 Public Address and Mass Notification Systems

27 51 23 Intercommunications and Program Systems

27 52 23 Nurse Call and Code Blue Systems

DIVISION 28 – ELECTRONIC SAFETY AND SECURITY

28 05 00 Common Work Results for Electronic Safety and Security

28 05 13 Conductors and Cables for Electronic Safety and Security

28 05 26 Grounding and Bonding for Electronic Safety and Security

28 05 28.33 Conduits and Backboxes for Electronic Safety and Security

28 08 00 Commissioning of Electronic Safety and Security Systems

28 13 00 Physical Access Control System

28 23 00 Video Surveillance

28 31 00 Fire Detection and Alarm

DIVISION 31 – EARTHWORK

31 20 00 Earthwork

31 23 19 Dewatering

31 23 23.33 Flowable Fill

DIVISION 32 – EXTERIOR IMPROVEMENTS

32 05 23 Cement and Concrete for Exterior Improvements

32 17 23 Pavement Markings

32 90 00 Planting

DIVISION 33 – UTILITIES

33 08 00 Commissioning of Site Utility Systems

33 10 00 Water Utilities

33 30 00 Sanitary Sewer Utilities

33 40 00 Storm Sewer Utilities

33 63 00 Steam Energy Distribution

034500 - 1

SECTION 034500

PRECAST ARCHITECTURAL CONCRETE

1.1 QUALITY ASSURANCE

A. Installer: PCI-certified erector.

B. Fabricator: PCI-certified plant.

C. Quality-Control Standard: PCI MNL 117.

D. Sample panels for each finish, color, and texture variation.

1.2 PERFORMANCE REQUIREMENTS

A. Design Standards: ACI 318 (ACI 318M) and PCI MNL 120.

1.3 MATERIALS

A. Concrete Materials:

1. Portland Cement: ASTM C 150/C 150M, Type I or Type III.

2. Aggregates: Normal weight

a. Face-Mixture: match color and texture of precast at Building

12.

3. Coloring admixture, as required to match color of existing precast on building 12.

B. Steel Connections: galvanized.

C. Stainless steel connections.

D. Grout: Epoxy resin

1.4 CONCRETE MIXTURES

A. Compressive Strength (28 Days):

1. Normal-Weight Concrete Face and Backup Mixtures: [5000 psi (34.5

MPa)]

2. Lightweight Concrete Backup Mixtures: [5000 psi (34.5 MPa)]

1.5 FABRICATION

A. Finishes: match existing

END OF SECTION

07 24 00 - 1

SECTION 07 24 00

EXTERIOR INSULATION AND FINISH SYSTEMS

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

1. Exterior insulation and finish systems (EIFS).

1.2 RELATED REQUIREMENTS

A. Gypsum Board Sheathing 09 29 00, GYPSUM SHEATHING.

1.3 APPLICABLE PUBLICATIONS

A. Comply with references to extent specified in this section.

B. American National Standards Institute (ANSI):

1. A108/A118/A136-14 - Installation of Ceramic Tile.

2. A137.1-12 - Ceramic Tile - Version 1.

C. ASTM International (ASTM):

1. B117-11 - Operating Salt Spray (Fog) Apparatus.

2. C67-14 - Sampling and Testing Brick and Structural Clay Tile.

3. C177-13 - Steady-State Heat Flux Measurements and Thermal

Transmission Properties by Means of the Guarded-Hot-Plate Apparatus.

4. C297/C297M-15 - Flatwise Tensile Strength of Sandwich Constructions.

5. C578-15 - Rigid, Cellular Polystyrene Thermal Insulation.

6. C666/C666M-15 - Resistance of Concrete to Rapid Freezing and

Thawing.

7. C920-14a - Elastomeric Joint Sealants.

8. D968-15 - Abrasion Resistance of Organic Coatings by Falling

Abrasive.

9. D2794-93(2010) - Resistance of Organic Coatings to the Effects of

Rapid Deformation (Impact).

10. E84-15a - Surface Burning Characteristics of Building Materials.

11. E96/E96M-15 - Water Vapor Transmission of Materials.

12. E119-15 - Fire Tests of Building Construction and Materials.

13. E330/E330M-14 - Structural Performance of Exterior Windows, Doors, Skylights and Curtain Walls by Uniform Static Air Pressure

Difference.

14. E331-00(2009) - Water Penetration of Exterior Windows, Skylights, Doors, and Curtain Wall by Uniform Static Air Pressure Differences.

07 24 00 - 2

15. E2486/E2486M-13 - Impact Resistance of Class PB and PI Exterior

Insulation and Finish Systems (EIFS).

16. G90-10 - Performing Accelerated Outdoor Weathering of Nonmetallic

Materials Using Concentrated Natural Sunlight.

1.4 PREINSTALLATION MEETINGS

A. Conduct preinstallation meeting at project site minimum 30 days before beginning Work of this section.

1. Required Participants:

a. Contracting Officer's Representative.

b. Architect/Engineer.

c. Contractor.

d. Installer.

e. Other installers responsible for adjacent and intersecting work, including air barriers and sealants.

2. Meeting Agenda: Distribute agenda to participants minimum 3 days before meeting.

a. Installation schedule.

b. Installation sequence.

c. Preparatory work.

d. Protection before, during, and after installation.

e. Installation.

f. Terminations.

g. Transitions and connections to other work.

h. Inspecting and testing.

i. Other items affecting successful completion.

3. Document and distribute meeting minutes to participants to record decisions affecting installation.

1.5 SUBMITTALS

A. Submittal Procedures: Section 01 33 23, SHOP DRAWINGS, PRODUCT DATA, AND SAMPLES.

B. Submittal Drawings:

1. Show size, configuration, and fabrication and installation details.

2. Show details for corner treatment, sills, soffits, dentils, quoins, lintels, openings, penetrations, flashing, and other special applications.

C. Manufacturer's Literature and Data:

07 24 00 - 3

1. Description of each product.

2. Installation instructions.

3. Warranty.

D. Samples:

1. Two 300 mm (1 foot) square samples of EIFS finishes over cement board identical to proposed installation in thickness, color, texture insulation and workmanship.

E. Test reports: Certify each product and complete system complies with specifications.

F. Qualifications: Substantiate qualifications comply with specifications.

1. Installer with project experience list.

1.6 QUALITY ASSURANCE

A. Installer Qualifications:

1. Regularly installs specified products.

2. Installed specified products with satisfactory service on five similar installations for minimum five years.

a. Project Experience List: Provide contact names and addresses for completed projects.

1.7 DELIVERY

A. Deliver products in manufacturer's original sealed packaging.

B. Mark packaging, legibly. Indicate manufacturer's name or brand, type, production run number, and manufacture date.

C. Before installation, return or dispose of products within distorted, damaged, or opened packaging.

1.8 STORAGE AND HANDLING

A. Store products indoors in dry, weathertight conditioned facility.

B. Protect products from damage during handling and construction operations.

1.9 FIELD CONDITIONS

A. Environment:

1. Unless greater temperature is required by system manufacturer, install products only when ambient air temperature is minimum

7 degrees C (45 degrees F) and rising and predicted to persist for

24 hours after installation.

07 24 00 - 4

1.10 WARRANTY

A. Construction Warranty: FAR clause 52.246-21, "Warranty of

Construction."

B. Manufacturer's Warranty: Warrant EIFS system materials against material and manufacturing defects.

1. Warranty Period: 10 years.

PART 2 - PRODUCTS

2.1 PRODUCTS - GENERAL

A. Basis of Design: match existing EIFS system in color, texture, and thickness. Provide samples for approval by architect prior to installation.

B. Provide system components from one manufacturer and from one production run.

2.2 EXTERIOR INSULATION AND FINISH SYSTEM (EIFS)

A. Description: Polymer-Based (PB) system consists of Type I molded rigid polystyrene insulation adhered to sheathing and finished with glass-fiber-mesh reinforced based-coat and textured finish coat.

B. Performance Requirements:

1. Surface Burning Characteristics: When tested according to ASTM E84.

a. Flame Spread Rating: 25 maximum.

b. Smoke Developed Rating: 450 maximum.

2. Full Scale Wall Fire Test: No significant surface flaming or propagation of vertical or lateral flames when tested according to

ASTM E119.

3. Impact Resistance (Sample to be cured. Finish, base coat and fabric over 25 mm (1 inch) insulation typical of project application), ASTM E2486/E2486M:

a. Standard Impact Resistance - 2.83 to 5.54 J (25-49 inch-lbs.).

4. Structural Performance: (Test panels 1200 mm x 1200 mm (4 feet by

4 feet) typical of project application): ASTM E330/E330M, no permanent deformation, delamination or deterioration for positive and negative pressures as required.

a. Wind Loads: Uniform pressure as indicated on Drawings.

5. Water Penetration: ASTM E331, no water penetration minimum 720Pa

(15psf) for windows and 300 Pa (6.24 psf) for curtain wall assembly.

07 24 00 - 5

6. Abrasion Resistance: ASTM D968, 500 liters of sand with slight smoothing and no loss of film integrity.

7. Accelerated Weathering: ASTM G90; 2000 hours with no deterioration.

8. Salt Spray Resistance: ASTM B117; Withstand 300 hours with no deleterious effects.

9. Water Vapor: ASTM E96/E96M; Maximum 12 g/h/sq. m (18 grains/hour/sf.).

10. Absorption-Freeze-Thaw (Pre-weighed 100 mm x 200 mm (4 inch by

8 inch) specimens; 25 mm (1 inch) insulation, faced with finish coat cured and stored in air; tested with edges and back open), ASTM C67.

a. 50 Cycles: 20 hours at 9 degrees C (4 degrees F); 4-hour thaw in water.

b. After 50 cycles; total weight gain of maximum 6.2 grams. No checking splitting, or cracking.

C. Adhesive: Manufacturers standard product including primer compatible with sheathing.

D. Insulation:

1. Thermal Resistance: Thermal resistance (R-value), as indicated, measured by ASTM C177.

2. Insulating Material: ASTM C578, as recommended by EIFS manufacturer and treated to be compatible with EIFS components. Age insulation minimum of 6 weeks before installation.

3. Provide Type I Molded Expanded Polystyrene (MEPS) insulation board for Type PB systems, in sizes as required except maximum 600 mm X

1200 mm (24 X 48 inches) boards, and maximum 100 mm (4 inches) thick.

E. Mechanical Anchors: As recommended by EIFS manufacturer.

F. Accessories:

1. Trim, control joints, weep screed, edging, anchors, expansion joints, and other items required for proper installation as recommended by EIFS manufacturer.

2. Metal Items and Fasteners: Corrosion resistant.

G. Reinforcing Fabric: Balanced, open weave, glass fiber fabric made from twisted multi-end strands specifically treated for compatibility with the other materials of system.

1. Minimum weight 100 g/sq. m (4.3 oz./sq. yd.).

H. Base Coat: Manufacturer's standard.

07 24 00 - 6

I. Finish Coat: Manufacturer's standard. Minimum thickness 1.5 mm

(1/16 inch), complying with performance requirements.

J. Sealant: ASTM C920; Class 50 with 100 percent recovery. Type, grade and use as recommended by sealant manufacturer.

1. When required, provide non-staining primer, bond breaker, and backer rods as recommended by sealant manufacturer.

2. Do not use absorptive materials as backer rods.

PART 3 - EXECUTION

3.1 PREPARATION

A. Examine and verify substrate suitability for product installation.

B. Protect existing construction and completed work from damage.

C. Notify Contracting Officer's Representative in writing of conditions detrimental to proper completion of work.

D. Do not proceed with work until unsatisfactory conditions are corrected.

3.2 INSTALLATION - GENERAL

A. Install products according to manufacturer's instructions and approved submittal drawings

1. When manufacturer's instructions deviate from specifications, submit proposed resolution for Contracting Officer's Representative consideration.

3.3 CONTROL JOINT INSTALLATION

A. See drawings for location of building control joints and surface control joints.

B. Install surface control joints as follows:

1. Direct Exterior Finish: Install at 6 meters (20 feet) maximum on center, both directions, erecting continuous vertical joints first at building expansion joints, intersection of dissimilar substrates or finishing materials where concentrated stresses or movement is anticipated. Leave 13 mm (1/2inch) minimum continuous gap between board panels to receive control joint.

2. Unit Finish: Install at 5 meters (16 feet) maximum on center, both directions, or at lesser spacing as recommended by manufacturer, erecting continuous vertical joints first. Leave 13 mm (1/2 inch) minimum, continuous gap between board panels to receive control joint or sealant backer and sealant.

07 24 00 - 7

3. Exterior Insulation and Finish System. Install at 15 meters

(50 feet) maximum in both directions and at building expansion joints, floor lines and where EIFS intersects other materials per manufacturer's recommendations.

3.4 SEALANT INSTALLATION

A. Exterior Insulation and Finish System: Apply sealant according to EIFS manufacturer's recommendation.

B. Do not apply sealant in locations intended for water drainage.

3.5 EXTERIOR INSULATION AND FINISH SYSTEM INSTALLATION

A. Insulation Board Layout: Place horizontally from level base line.

Stagger vertical joints and interlock at corners. Butt joints tightly.

Provide flush surfaces at joints. Offset insulation board joints from joints in sheathing minimum 200 mm (8 inches). Do not align joints with corners of doors, windows and other openings. Do not leave insulation board exposed longer than recommended by insulation manufacturer.

B. Adhesive: Apply directly to entire back surface of the insulation board as recommended by the system manufacturer and immediately apply to gypsum board substrate. Apply firm pressure over entire board to ensure uniform contact and level surface. Allow adhesive to cure for 24 hours minimum before sanding.

C. Create means of drainage between insulation board and gypsum board sheathing.

D. Flash penetrations and terminations to discharge water to exterior.

E. Mechanical Fasteners: Fasten with manufacturer's standard anchors, spaced as recommended by manufacturer, maximum 600 mm (24 inches) on center horizontally and vertically.

F. Sanding: Sand entire surface of insulation before applying base coat, level high joints and remove dirt and weathering damage. Do not pre-fill low areas with basecoat.

G. Base Coat: Trowel apply uniform thickness of base coat to insulation with minimum thickness of 1-1/2 times reinforcing fabric thickness and minimum 2.4 mm (3/32 inches) wet thickness.

H. Install reinforcing fabric embedded in base coat. Provide diagonal reinforcement at opening corners, back wrapping, and other reinforcement recommended by EIFS manufacturer. Ensure fabric pattern

07 24 00 - 8 is not visible beneath the surface of the basecoat after installation.

Cure basecoat 24 hours minimum before applying finish coat.

I. Finish Coat:

1. Inspect basecoat for damage or defects and repair before applying finish coat.

2. Trowel apply finish coat minimum 1.6 mm (1/16 inch) thick.

3. Texture finish as required.

4. Surface Tolerance: Maximum 1/500 (1/4 inch in 10 feet) deviation from plumb and plane.

- - E N D - -

07 27 27 - 1

SECTION 07 27 27

FLUID-APPLIED MEMBRANE AIR BARRIERS, VAPOR RETARDING

PART 1 - GENERAL

1.1 DESCRIPTION:

This section specifies fluid-applied vapor-retarding membrane air barrier material and accessories used for exterior above grade wall assembly air barriers and their extension and connection to adjacent air barrier components in roof and opening construction to provide a durable, continuous, air- and moisture- impermeable full-building system.

1.2 RELATED WORK

A. General quality assurance and quality control requirements: Section

01 45 29 TESTING LABORATORY SERVICES.

B. Flashing components of factory finished roofing and wall systems to which membrane air barriers will transition: Division 07 roofing and wall system sections.

C. Other flashing components to which membrane air barriers will transition: Section 07 60 00 FLASHING AND SHEET METAL.

D. Joint Sealants: Section 07 92 00, JOINT SEALANTS.

E. Division 08 exterior openings sections for opening transitions providing airtight seal between membrane air barrier and aluminum-framed entrances and storefronts.

F. Wall sheathings serving as substrate for membrane air barriers:

Section 09 29 00 GYPSUM BOARD.

1.3 APPLICABLE PUBLICATIONS

A. Publications listed below form a part of this specification to the extent referenced. Publications are referenced in the text by the basic designation only. Editions of applicable publications current on date of issue of bidding documents apply unless otherwise indicated.

1. American Society of Testing and Materials (ASTM):

C920-10.................Standard Specification for Elastomeric Joint

Sealants

C1193-09................Standard Guide for Use of Joint Sealants

D412-06.................Standard Test Methods for Vulcanized Rubber and

Thermoplastic Elastomers—Tension

D2369-10................Standard Test Method for Volatile Content of

Coatings

07 27 27 - 2

E96/E96M-05.............Standard Test Methods for Water Vapor

Transmission of Materials

E162-09.................Standard Test Method for Surface Flammability of Materials Using a Radiant Heat Energy Source

E2178-03................Standard Test Method for Air Permeance of

Building Materials

E2357-05................Standard Test Method for Determining Air

Leakage of Air Barrier Assemblies

2. U.S. Environmental Protection Agency (EPA):

40 CFR 59, Subpart D....National Volatile Organic Compound Emission

Standards for Consumer and Commercial Products

3. SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT (SCAQMD):

1168-89(2003)...........Adhesive and Sealant Applications

1.4 PERFORMANCE REQUIREMENTS

A. General: Membrane air barrier shall be capable of performing as a continuous vapor-impermeable air barrier and as a moisture drainage plane transitioned to adjacent flashings and discharging water to the building exterior. Membrane air barriers shall accommodate substrate movement and seal expansion and control joints, construction material transitions, opening transitions, penetrations, and perimeter conditions without moisture deterioration and air leakage exceeding performance requirements.

B. Air-Barrier Assembly Air Leakage: Maximum 0.2 L/s x sq. m of surface area at 75 Pa (0.04 cfm/sq. ft. of surface area at 1.57 lbf/sq. ft.)per

ASTM E 2357.

C. Material Compatibility: Provide membrane air barrier materials that are compatible with one another and with adjacent materials under conditions of service and application required, as demonstrated by membrane air barrier manufacturer based on testing and field experience.

D. The airtight components and secondary moisture protection of the building enclosure and the joints, junctures and transitions between materials, products, and assemblies forming the air-tightness and moisture barrier of the building enclosure are called "the air/moisture barrier system". Services include coordination between the trades, the proper scheduling and sequencing of the work, preconstruction meetings, inspections, tests, and related actions, including reports performed by

07 27 27 - 3

Contractor, by independent agencies, and by governing authorities.

They do not include contract enforcement activities performed by the

Architect.

E. Air Barrier Penetrations: All penetrations of the air/moisture barrier and paths of air infiltration / exfiltration through the air/moisture barrier system shall be made air-tight.

F. Moisture Barrier Penetrations: All penetrations of the air/moisture barrier and paths of water migration through the air/moisture barrier system shall be made water shedding.

1.5 QUALIFICATIONS:

A. Approvals: Approval by Contracting Officer is required of products and services of proposed manufacturers, and installers, and will be based upon submissions by the Contractor.

B. Manufacturer Qualifications: Manufacturer regularly and presently manufactures fluid-applied membrane air barrier material meeting section requirements as one of its principal products.

1. Manufacturer's product submitted has been in satisfactory and efficient operation on five similar installations for at least five years.

a. Submit list of installations, include name and location of project and name of owner.

C. Installer Qualifications: Installer has technical qualifications, experience, certifications, trained personnel, membrane air barrier manufacturer's approval, and facilities to install specified items.

1. Installer's applicators shall be trained and certified by manufacturer of air barrier system.

2. Installer's full time on-site field supervisor shall have completed three projects of similar scope within last year, be able to communicate verbally with Contractor, Architect, testing agency, and employees.

a. Certification: Installer's supervisor shall hold Sealant, Waterproofing, and Restoration Institute (SWRI) Wall Coating

Validation Program Certificate, or similar qualification acceptable to Resident Engineer.

07 27 27 - 4

1.6 SUBMITTALS:

A. Submit in accordance with Section 01 33 23, SHOP DRAWINGS, PRODUCT

DATA, AND SAMPLES.

B. Manufacturer's Literature and Data:

1. Fluid-applied membrane air barrier.

2. Primer.

3. Mastic.

4. Counterflashing strip.

5. Modified bituminous strip.

6. Sprayed polyurethane foam sealant.

7. Opening transition assembly.

8. Joint sealant.

9. Printed installation instructions for conditions specified.

C. Certificates:

1. Indicating membrane air barrier manufacturer's qualifications as specified.

2. Indicating approval of installer by membrane air barrier manufacturer.

3. Indicating qualifications of installer and installer's personnel.

4. Indicating air barrier manufacturer's determination that proposed materials are chemically and adhesively compatible with adjacent materials.

5. Indicating products meet project limitations on VOC content.

D. Inspection Reports: Daily reports of testing agency and reports of testing and inspection agency. Include weather conditions, description of work performed, tests performed, defective work observed, and corrective actions taken to correct defective work.

1.7 COORDINATION:

A. Coordinate installation of work of this Section with adjacent and related work to ensure provision of continuous, unbroken, durable air barrier system.

1.8 PRODUCT DELIVERY, STORAGE AND HANDLING:

A. Deliver materials to job in manufacturer's original unopened containers.

B. Do not store material in areas where temperature is lower than 10 degrees C (50 degrees F,) or where prolonged temperature is above 32 degrees C (90 degrees F).

07 27 27 - 5

1.9 ENVIRONMENTAL REQUIREMENTS:

Ambient Surface and Material Conditions: Not less than 4 degrees C (40 degrees F), during application of waterproofing, visibly dry, and complying with manufacturer's written instructions.

1.10 WARRANTY:

Warrant membrane air barrier installation against air and moisture leaks subject to terms of "Warranty of Construction", except that warranty period is two years.

PART 2 - PRODUCTS

2.1 MATERIALS

A. Source Limitations: Obtain membrane air barrier materials and accessories from single manufacturer.

B. VOC Content: Maximum 250 g/L per 40 CFR 59, Subpart D (EPA Method 24).

2.2 MEMBRANE AIR BARRIER:

A. Basis of Design: James Hardie Building Products, Inc., HardieWrap

Weather Barrier and related products.

B.Moisture Air Barrier Sheet:

1. Product: HardieWrap Weather Barrier as manufactured by James

Hardie Building Systems (basis of design).

2. Composition: Non-woven, non-perforated polyolefin.

3. Film: MicroTech Coating with micropores to balance water holdout and breathability.

4. Thickness: 11 mil (0.28 mm).

5. UV Stability: Up to 180 days.

6. Water Holdout (AATCC127): 128 inches (3250 mm).

7. Breathability/Water Vapor Permeance (ASTM E-96A): 15 perms.

8. Air Resistance (TAPPI T-460): >1800 sec/100 cc.

9. Tear Strength (ASTM D1117): 15 to 18 lb (6.8 to 8.2 kg).

10. Basis Weight: 19.4 lbs/1000 sf (9.5 kgs/100 sm).

11. Sizes: 3 feet by 195 feet (914 mm by 59.4 m), 9 feet by 100 feet (2743 mm by 30.5 m), 9 feet by 150 feet (2743 mm by 45.7 m), 10 feet by 100 feet (3048 mm by 30.5 m), 10 feet by 150 feet (3048 mm by 45.7 m).

C. Self-adhering Flashing: Designed for peel and stick application.

1. Product: HardieWrap Flashing as manufactured by James Hardie

Building Systems (basis of design).

2. Composition: Butyl rubber adhesive non-woven polyolefin backing; coated Kraft paper release.

3. Total Thickness: 25 mil (0.64 mm).

4. UV Stability: Up to 180 days.

5. Application Temperature: 30 degree F to 180 degree F (-1 degree

C to 82 degree C).

6. Operating Temperature: -30 degree F to 200 degree F (-34 degree

C to 93 degree C).

7. Packaging: Individually shrink-wrapped.

8. Roll Weight: 4 inch (102 mm) = 4.6 lb (2 kg)/roll, 6 inches

07 27 27 - 6

(152 mm) = 6.9 lb (3 kg) /roll, 9 inches (229 mm) = 9.9 lb (4.5 kg)/roll.

9. Provide Width for Application Required: 4 inches by 100 feet

(102 mm by 30.5 m) (2x4 construction), 6 inches by 100 feet

(152 mm by 30.5 m) (2x4 construction), 9 inches by 100 feet

(229 mm by 30.5) (2x6 construction).

D. Flexible Flashing:

1. Product: HardieWrap Flex Flashing as manufactured by James

Hardie Building Systems (basis of design).

2. Composition: Butyl rubber adhesive; creped cross-laminated polyolefin backing; polyethylene film release.

3. Total Thickness: 60 mil (1.5 mm).

4. Tensile Strength (ASTM D3759): 18 lb/inch (3.2kg/cm).

5. UV Stability: Up to 180 days.

6. Water Vapor Transfer Rate (ASTM E96-94): <.2g/100 square inches/24hrs.

7. Application Temperature: 30 degree F to 180 degree F (-1 degree

C to 82 degree C).

8. Operating Temperature: -30 degree F to 200 degree F (-34 degree

C to 93 degree C).

9. Packaging: Each roll is packed in a convenient dispenser box

10. Roll Weight: 6 inches (152 mm) = 22.2 lb (10kg)/roll, 9 inches

(229 mm) = 33.3 lb (15 kg)/roll.

11. Provide Width for Application Required: 6 inches by 75 feet

(152 mm by 23.9 m) (2x4 construction), 9 inches by 75 feet (229 mm by 23.9) (2x6 construction).

E. Seam Tape:

1. HardieWrap Seam Tape as manufactured by James Hardie Building

Systems (basis of design).

2. Composition: Polypropylene film coated with acrylic adhesive

Total Thickness: 3.0 mil (.08 mm).

3. Adhesion Peel to HardieWrap (PSTC-1): 22 oz/inch (25 N/100 mm).

4. Tensile Strength (ASTM D3759): 32 lb/in (.58 kg/mm).

5. Elongation: 136 percent.

6. UV Stability: Up to 90 days.

7. Application Temperature: 30 degree F to 180 degree F (-1 degree

C to 82 degree C).

8. Operating Temperature: -30 degree F to 200 degree F (-34 degree

C to 93 degree C).

9. Packaging: Individually shrink-wrapped.

10. Roll Weight: 1 lb(0.5 kg)/roll.

11. Roll Size: 1-7/8 inches (43 mm) by 165 feet (50 m).

PART 3 - EXECUTION

3.1 EXAMINATION:

A. Surface Condition: Before applying membrane air barrier materials, ensure substrates are fully cured, smooth, clean, dry, and free from high spots, depressions, loose and foreign particles and other deterrents to adhesion.

07 27 27 - 7

B. Verify concrete surfaces have cured for time period recommended by membrane air barrier manufacturer, free from release agents, concrete curing agents, and other contaminates.

C. Verify masonry joints are flush and filled with mortar.

3.2 INTERFACE WITH OTHER WORK

A. Commencement of Work: Commence work once membrane air barrier substrates are adequately protected from weather and will remain protected during remainder of construction.

B. Sequencing of Work: Coordinate sequencing of work with work of other sections that form portions of building envelope air barrier to ensure that flashings and transition materials can be properly installed.

C. Subsequent Work: Coordinate work with work of other sections installed subsequent to membrane air barrier to ensure complete inspection of installed membrane air barrier and sealing of membrane air barrier penetrations necessitated by subsequent work.

3.3 AIR BARRIER INSTALLATION

A. General: Prepare substrates and install and apply air barrier components in accordance with air barrier manufacturer's written instructions consistent with manufacturer's qualifying tested assemblies and following manufacturer’s warranty requirements.

B. Moisture Air Barrier Sheet:

1. Weather barrier shall be installed before window and door installation. Do not install on saturated sheathing. Weather barrier can become slippery and should not be used in any application where it may be walked on.

2. Begin by affixing weather barrier extending at least 6 inches

(152 mm) around a building corner. Unroll horizontally (with print side facing out) around the building covering rough window and door openings.

3. Fasten to studs or nailable sheathing material with galvanized construction grade staples a maximum of 18 inches (457 mm) in the vertical and horizontal direction.

4. Attach weather barrier so that it is taut and flat. The vertical overlap shall have a minimum of 6 inches (152 mm) and the vertical seam shall be taped.

5. Assure that the bottom edge of the weather barrier extends over the sill plate and foundation interface by at least 1 inch (25 mm).

6. Overlap upper layers of weather barrier (in shingle lap fashion) by a minimum of 6 inches below the horizontal edge, and tape the horizontal seam line.

7. At roof to wall intersection (or wall to deck), affix wrap to

07 27 27 - 8 the wall such that it overlaps any step flashing already in place on the wall by at least 2 inches (51 mm).

C. Flexible Flashing:

1. Windows and Doors: Weather barrier is not designed nor guaranteed as a flashing material to prevent moisture or air from intruding behind weather barrier. Verify that flashing has previously been installed around all windows and door openings.

Install flexible flashing per manufacturer's instructions.

a. Use the inverted "Y" cut method at rough window and door openings. Do not place fasteners within 9 inches (229 mm) of the rough opening, door or window heads. This area shall not be fastened to allow for proper head flashing installation. At the top corners of the rough opening, cut the weather barrier at 45 degree to extend 9 inches (229

mm) past the joint.

b. Fold the top flap up and out of the way and fasten temporarily.

c. Fold the remaining three flaps in through the opening fastening them inside the opening with staples.

2. Rough Electrical and Plumbing Penetrations: Seal with a double layer of flashing. Install the top flashing piece over the bottom flashing piece overlapping flashing layers to cover flashing cut-out necessary for placement around penetration.

D. Repairs: For minor punctures or tears, less than 3 inches (76 mm), cover and completely seal with seam tape. For larger holes, greater than 3 inches (76 mm), use slit flashing technique.

a. Slit flashing requires making a horizontal slit above the damaged area and placing a cut piece of weather barrier into the slit, covering the damaged area. Tape the perimeter of the patched area.

3.4 PREPARATION

A. Prepare and treat substrate in accordance with membrane air barrier manufacturer's written instructions.

B. Mask adjacent finished surfaces.

C. Remove contaminants and film-forming coatings from concrete.

D. Remove projections and excess materials and fill voids with substrate patching material.

E. Prepare and treat joints and cracks in substrate per ASTM C 1193 and membrane air barrier manufacturer's written instructions.

F. Apply primer to substrates.

07 27 27 - 9

3.5 APPLICATION OF TRANSITION STRIPS

A. Install transition strips and accessory materials according to membrane air barrier manufacturer's written instructions.

B. Connect and seal membrane air barrier material to adjacent components of building air barrier system, including, but not limited to, roofing system air barrier, exterior glazing and window systems, curtain wall systems, door framing, and other openings.

C. Flexible Opening Transition: Prime concealed perimeter frame surfaces of windows, storefronts, curtain walls, louvers, and doors. Apply flexible opening transition and attach or adhere in accordance with air barrier manufacturer's written instructions.

1. Fill gaps at perimeter of openings with foam sealant.

D. Penetrations: Fill gaps at perimeter of penetrations with foam sealant. Seal transition strips around penetrating objects with termination mastic.

E. Flashings: Seal top of through-wall flashings to membrane air barrier with continuous transitions strip of type recommended by membrane air barrier manufacturer for type of flashing.

3.7 TESTING:

A. Testing Agency: Owner will engage a qualified testing agency to perform tests and inspections, including documenting of membrane air barrier prior to concealment.

1. Inspections: Air-barrier materials, accessories, and installation are subject to inspection for compliance with requirements, including the following:

2. Continuity of air-barrier system has been achieved throughout the building envelope with no gaps or holes.

3. Continuous structural support of air-barrier system has been provided.

4. Masonry and concrete surfaces are smooth, clean, and free of cavities, protrusions, and mortar droppings.

5. Site conditions for application temperature and dryness of substrates have been maintained.

6. Maximum exposure time of materials to UV deterioration has not been exceeded.

7. Surfaces have been primed, if applicable.

8. Laps in strips and transition strips have complied with minimum requirements and have been shingled in the correct direction (or mastic has been applied on exposed edges), with no fishmouths.

07 27 27 - 10

9. Termination mastic has been applied on cut edges.

10. Strips and transition strips have been firmly adhered to substrate.

11. Compatible materials have been used.

12. Transitions at changes in direction and structural support at gaps have been provided.

13. Connections between assemblies (air-barrier and sealants) have complied with requirements for cleanliness, surface preparation and priming, structural support, integrity, and continuity of seal.

14. All penetrations have been sealed.

15. Inspections and testing shall be carried out at the following rate:

a. Up to 10,000 square feet (930 square meters) – one inspection

b. 10,001 – 35,000 square feet (931 – 3,250 square meters) – two inspections

c. 35,001 – 75,000 square feet (3,251 – 6,970 square meters) – three inspections

d. 75,001 - 125,000 square feet (6,971 – 11,610 square meters) – four inspections

e. 125,001 – 200,000 square feet (11,611 – 18,580 square meters) – five inspections

f. Over 200,00 square feet (18,580 square meters) – six inspections.

16. Forward written inspection reports to the Resident Engineer within

5 working days of the inspection and test being performed.

17. If the inspections reveal any defects, promptly remove and replace defective work at no additional cost to the Owner.

B. Inspections shall include:

1. Compatibility of materials within membrane air barrier system and with adjacent materials.

2. Suitability of substrate and support for membrane air barrier materials.

3. Suitability of conditions under which membrane air barrier will be applied.

4. Adequacy of substrate priming.

5. Proper application and joint and edge treatment of transition strips, flexible opening transitions, and accessory materials.

6. Continuity and gap-free installation of membrane air barrier, transition strips, and accessory materials.

07 27 27 - 11

3.8 CLEANING AND PROTECTION

A. Clean spills, stains, and overspray resulting application utilizing cleaning agents recommended by manufacturers of affected construction.

Remove masking materials.

B. Protect membrane air barrier from damage from subsequent work. Protect membrane materials from exposure to UV light in excess of that acceptable to membrane air barrier manufacturer; replace overexposed materials and retest.

- - - E N D - - -

VAMC DES MOINES VA PROJECT NO. 636-123 APRIL 2018

COMMUNITY LIVING CENTER SCHEMMER NO. 06054.032

07 31 14 - 1

SECTION 07 31 14

STONE COATED METAL ROOF SHINGLE

PART 1 - GENERAL

1.1 SUMMARY

A. Related Documents: Provisions established within General and

Supplementary Conditions of the Contract, Division 1 – General

Requirements, and the Drawings are collectively applicable to this

Section.

B. Section Includes: Formed metal roofing panels with colored stone chip finish.

C. Associated metal flashings.

D. Related Sections:

1. Division 7 Section "Sheet Metal Flashing and Trim" for metal flashing, gutters, and downspouts.

2. Division 7 Section "Joint Sealants" for field-applied sealants.

3. Division 9 Section “Painting” for painting of roof accessories.

1.2 SUBMITTALS

A. Submit in accordance with Section 01 33 00, SHOP DRAWINGS, PRODUCT

DATA AND SAMPLES.

B. Product Data: Include construction details, material descriptions, dimensions of individual components and profiles, finishes, fasteners, accessories, and manufacturers written installation instructions.

C. Shop Drawings: Include roof plans and elevations; sections at hips, ridges, gables, valleys, and eaves; and details of components, accessories, and attachments to other work.

D. Samples for Initial Selection: Manufacturer's color charts and samples consisting of units or sections of units showing the full range of colors, textures, and patterns available for each type Shingle indicated.

1.3 QUALITY ASSURANCE

A. Regulatory Requirements:

1. Conform to applicable building code for roof assembly fire hazard requirements.

2. Conform to building code for minimum wind uplift resistance.

1.4 REFERENCES

A. Fire-Test-Response Characteristics: Provide Shingle with fire-test-response characteristics indicated, as determined per test method ASTM

07 31 14 - 2

E108 – Test for Fire Resistance of Roof Covering Materials, for application and slopes indicated.

1. Fire-Test Exposure: Class A.

B. ASTM A792/A792M: Sheet Steel, Aluminum-Zinc Alloy Coated by the Hot

Dip Process, Structural (physical) Quality.

C. UL 1897 and UL 580: Wind Uplift Resistance of Roof Assemblies.

D. ASTM C920: Specification for Elastomeric Joint Sealants.

E. Impact Resistance: UL 2218, Class 4.

F. Appraisal Certificates:

1. International Code Council (ICC), Whittier California, Report No.

ESR 1483.

2. Underwriters Laboratories, Inc., Northbrook, Illinois, USA File

No. R14710.

1.5 DELIVERY, STORAGE, AND HANDLING

A. Store and handle roofing materials to ensure dryness. Store in a dry, well-ventilated, weather tight place. Protect from corrosion, staining and traffic and wind damage. Store rolls of felt and other sheet materials on end on pallets or another raised surface.

1.6 WARRANTY

A. Manufacturing Warranty: Written, transferable, limited warranty, covering manufacturing defects/excessive granule loss. Refer to warranty for specifics.

1. Warranty Period: 50 years from date of Substantial Completion.

2. Wind Warranty: 120 mph winds, full warranty period.

3. Hail Penetration: full warranty period.

PART 2 - PRODUCTS

2.1 MATERIALS

A. Metal Shingle: carbon alloy steel core, with hot-dipped G90 Zinc

Phosphate anti-corrosion coating, plus an exterior PVDF Paint System.

1. Material: Rolled and pressure formed, Aluminum-Zinc Alloy Coated

Steel with Slate Tile Look

2. Finish: PVDF paint system

3. Thickness: 26 gauge (0.019” thick)

4. Steel: Grade 37 (Grade 255).

5. Size: 21” wide by 48” long (uninstalled)

6. Exposure: 18-3/16” wide by 47-1/4” long

7. Weight: 96 pounds per square.

8. Color: See Section 09 06 00 Schedule for Finishes.

B. Flashing:

07 31 14 - 3

1. Valley: Shingle Valley and Cap, Aluminum-Zinc Alloy coated Steel sheet 0.0165 inches (.455 mm). Pressure formed into a valley with a stone coated valley cap. Finish: Match upper exposed stone coated surface of the valley cap to the shingle material/color.

2. Fascia Metal: Shingle Starter Clip w/ Drip Edge, Aluminum-Zinc

Alloy Coated Steel sheet, 0.0165 inches (.455 mm). Pressure formed to fit along the leading edge of roof panels at eave/fascia.

3. Rake / Gable Channel: Shingle Rake/Gable Channel, Aluminum-Zinc

Alloy Coated Steel sheet, 0.0165 inches (.455 mm). Pressure formed to match roofing material to be applied along rakes and gables. Pre-paint to match as needed prior to installing panels.

4. Short Course Clip: Shingle Short Course Clip, Aluminum-Zinc Alloy

Coated Steel sheet, 0.0165 inches (.455 mm). Pressure formed for use with starting a short course or when Shingle Starter Clip w/

Drip Edge will not conform to existing eave/fascia.

5. Pipe Jack Flashing: 0.0165 inches (.455 mm) galvanized or

Aluminum-Zinc Alloy Coated Steel, clean, prime and paint to match roof material.

6. Underpan: Aluminum-Zinc Alloy Coated Steel sheet, 0.0165 inches

(.455 mm), pressure formed to counter flash roof penetrations matching Shingle material profile.

C. Hip & Ridge: Shingle Hip & Ridge covers hips and ridges matching shingle material, color, and finish.

1. Hips / Ridges: Shingle Hip & Ridge, Aluminum-Zinc Alloy Coated

Steel sheet, 0.0165 inches (.455 mm). Pressure formed to match roofing material, color, and finish to be applied along hips and ridges.

2. Screws: Minimum No. 9 hex (1/4” diameter) by 1-1/2” long (38.1

mm) minimum, corrosion resistant, color coordinated to match the panels.

2.2 ACCESSORIES

A. Sheet Metal Materials: Aluminum-Zinc Alloy Coated Steel sheet: ASTM A

792/A 792M, Class AZ50 (AZ150) coating designation; minimum Grade 37

(Grade 255).

B. Felt Underlayment: ASTM D 226, Type I, No.15 or ASTM D 226, Type II, No.30, non-perforated, asphalt-saturated organic felt.

07 31 14 - 4

C. Perimeter Underlayment: ASTM D 1970; self-adhering, polymer-modified, bituminous sheet underlayment; 40 mils (1 mm) thick. Provide primer when recommended by underlayment manufacturer.

D. Sealant: One-part elastomeric polyurethane, sealant as recommended in writing by panel manufacturer. Where sealant will be exposed, provide in color to match panels.

1. Standard: ASTM C920-86.

E. Fasteners: Screws: Minimum No. 9 hex (1/4” diameter) by 1-1/2” long

(38.1 mm) minimum, corrosion resistant, black or color coordinated to match the panels where visible.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine substrate and conditions for compliance with requirements for maximum moisture content, soundness of roof deck and other conditions affecting performance of metal roofing.. Proceed with installation only after unsatisfactory conditions have been corrected.

3.2 PREPARATION

A. Clean substrate of any projections and substances detrimental to metal panel roofing. Cover knotholes or other minor voids in substrate with sheet metal flashing secured with roofing nails.

B. Coordinate installation of metal shingles with roof deck, flashing and other adjoining work to ensure proper sequencing. Do not install roofing until vent stacks and other penetrations through roofing have been installed, are securely fastened and flashing is in place.

C. Inspect and verify exterior stucco and EIFS wall enclosures are completed.

3.3 INSTALLATION

A. General: Comply with manufacturer’s written instructions for products and applications indicated, unless more stringent requirements apply.

B. Underlayment: Apply number of plies required by governing code, but at least one ply, with each ply overlapping the ply below at least 6 inches (152 mm) and ends lapped at least 18 inches (457 mm).

1. Omit felt underlayment at areas of perimeter underlayment. Lap felt underlayment over perimeter underlayment as recommended by manufacturer, but not less than 2 inches (51 mm).

C. Perimeter Underlayment: Apply minimum 24 inches (609 mm) wide layer of perimeter underlayment along entire perimeter of surface to receive metal shingles, including at eaves, ridges, edges, hips, valley, 07 31 14 - 5 skylights, dormers, and around projections through roof. Extend perimeter underlayment a minimum of 36 inches (914 mm) inside exterior wall line at edges.

D. Valleys: Install in accordance with manufacturer’s instructions with a minimum 6 inch (152 mm) overlap in direction of flow.

E. Flashing: Install as indicated on approved submittals and in accordance with manufacturer’s written instructions.

F. Shingle Panels: Install Shingle, accessories, flashing, and hip & ridge level and plumb. Use fasteners per above specifications.

1. Using the recommended offset, the first course of panels lock into the Shingle Starter Clip w/ Drip Edge.

2. The second course of panels start at the rake edge, valley or hip with a panel that is 28 inches (711 mm) in length, panel exposure is 25 inches (635 mm), measured from the left side of the panel.

3. Position the panel into the top clip of the panels on the course below. The center of each field panel will be placed directly above the overlap of the panels on the previous course.

4. Make sure the top clips of each panel are flush. The maximum allowable gap should be 3/16 inches (76 mm).

5. Once the panel is in position, firmly push (by hand or foot) on the panel in the area that overlaps the joint of the two panels below. This will help position the panel for fastener placement.

6. After positioning the panel, firmly push (by hand or foot) on the left side of the panel until it is locked firmly into the clip-lock of the panel on the course below.