Atch_2_Technical_Specs.pdf

Technical Specifications

RETROFIT ROOF FRAMING SYSTEMS 054610 - 1

SPECIFICATION 054610 – ROOF RETROFIT METAL FRAMING SYSTEMS

PART 1 – GENERAL

1.1 DESCRIPTION

A. General

1. The retrofit framing system shall provide support for a new metal roof panel system over the existing building roof and shall accommodate the irregularities of the existing roof to form a structural framework for supporting the new metal roof panels at a specified slope.

The metal roof panel system manufacturer shall supply all components required for a complete retrofit framing roof system including base members, clips, purlins, purlin supports, bracing and structural member-to-member fasteners as well as panels, panel clips, trim/flashing, fascias, ridge, closures, sealants, fillers and any other required items as specified in related sections.

1.2 QUALTITY ASSURANCE

A. Applicable Standards: All following referenced publications shall be the most current edition in effect on the date of solicitation.

1. American Institute of Steel Construction (AISC)

a. AISC - Specification for Structural Steel for Buildings

2. American Iron and Steel Institute (AISI)

a. AISI CF00-01 – A Design Guide for Standing Seam Roof Panels

3. American Society of Civil Engineers (ASCE)

a. ASCE-7-16 - Minimum Design Loads for Buildings and other Structures

4. American Society for Testing and Materials (ASTM)

a. ASTM A 36/A 36M - Structural Steel

b. ASTM A 307 - Steel Bolts and Studs

c. ASTM A 446 - Steel Sheet, Zinc Coated (Galvanized) By The Hot-Dip Process

d. ASTM A 525/A 525M - Steel Sheet, Zinc-Coated by the Hot-Dip Method

e. ASTM A 529/A 529M – Structural Steel with 42 KSI Minimum Yield Point

f. ASTM A 653/A 653M – Specification for Steel Sheet, Zinc Coated (Galvanized) or Zinc-Iron Alloy - Coated (Galvannealed) By Hot-Dip Method

g. ASTM E 1514 –Structural Standing Seam Steel Roof Panel Systems.

h. ASTM A792 – Specification for Galvalume Coated Steel

5. Metal Building Manufacturers Association

a. MBMA – Metal Building Systems Design Practices Manual

6. Factory Mutual

a. FM-4471 – Wind Uplift Test for Metal Roof Panel Systems

7. American Welding Society

a. AWS D1.1 Structural Welding Code – Steel

b. AWS D1.3 Structural Welding Code – Steel Sheet

8. Underwriters Laboratories, Inc. (UL)

a. UL 580 - Tests for Uplift Resistance of Roof Assemblies

9. American Society Of Heating, Refrigerating And Air-Conditioning Engineers (ASHRAE)

a. ANSI/ASHRAE Standard 90.1, Energy Standard for Buildings

B. Manufacturers Qualifications

140P5423R0013 Attachment 2

Attachment D – Technical Specifications

RETROFIT ROOF FRAMING SYSTEMS 054610 - 2

1. Manufacturer of the retrofit framing system shall be experienced in fabricating complete metal roof systems of similar size and scope to this project for a minimum of five (5) years.

C. Installing Contractor Qualifications

1. Installer shall be experienced in installation of structural light-gauge retrofit framing and metal roof panel systems for a minimum of five (5) years and shall meet the following minimum criteria.

a. Shall be a factory-authorized installer of the manufacturer trained in the installation of the retrofit framing system specified.

b. Will provide a full-time project foreman/superintendent at the jobsite that has been trained by the metal retrofit roofing system manufacturer for the supervision of the installation of all materials.

D. Installation Quality Control

1. The metal roof panel system manufacturer shall conduct inspections of the retrofit framing system:

a. Prior to metal roof panel installation to ensure straightness and proper alignment and to confirm the system components have been installed in accordance with the installation documents.

b. A minimum of four (4) times throughout the project

c. At the completion of the retrofit installation prior to final inspection to confirm the system components has been installed in accordance with all installation guidance.

1.3 EXISTING ROOF SYSTEM AND TESTING

A. The existing roof assembly consists of a tar and gravel built up roof that has been analyzed for polyurethane fluid applied system with parapets and full roof drainage system.

B. Prior to any work on the retrofit truss system, the contractor shall have an inspection and report by a structural engineer licensed in the state of Florida. The inspection is required as part of the existing roof to retrofit roof fastening design to ensure that load paths and bracing is completed appropriately as part of the retrofit. The report shall directly address the structural soundness of alternative possible attachment points to meet the ASCE 7-16, IBC and FBC wind loads for the building’s location and category. Report shall also consist of pull out testing for evaluation and selection of framing system anchors to attach the new retrofit framing base members to the existing roof support system. The testing shall be conducted at multiple locations of the existing roof area using a calibrated pullout tester. Pullout values shall be recorded at each location for each specific anchor used. All anchors shall penetrate and attach to existing structural support members. The contractor shall have the attachment connection designed by the structural engineer to satisfy wind load and uplift values. The attachments shall connect to the retrofit truss system with details as provided and recommended by the retrofit system manufacturer. The report shall also address field compressive strength testing performed for evaluation of the existing roof substrate and membrane assembly. These values, recorded in pounds per square inch (PSI), shall be analyzed to determine if each retrofit framing system base member’s bearing surface area is adequate in size, to distribute the imposing positive loads as to not exceed the compressive strength of the existing roof substrate and membrane assembly. If the values exceed the compressive strength, then an additional bearing component of sufficient size shall be added

RETROFIT ROOF FRAMING SYSTEMS 054610 - 3

between the base member and the existing roof.

C. The contractor shall obtain accurate field measurements and forward them to the retrofit system manufacturer for coordination and integration into the installation documents and submittals. This shall be done prior to commencing any engineering and design work.

D. With the assistance of a structural engineer licensed in the State of Florida, attachment connections shall be designed to meet or exceed the Florida Building Codes. This analysis and design with signed and sealed attachment point shop drawings shall be submitted for review and approval.

1.4 DESIGN REQUIREMENTS

A. General

a. Design shall meet Florida Building Code and ICC International Building Code requirements for the Building’s location and category, in accordance with the ASCE 7-

16.

1.5 SUBMITTALS

A. Detail drawings shall consist of catalog cuts, design and installation drawings and other data necessary to clearly describe design, materials, gauges, sizes, layouts, construction details, fasteners and erection. Detail drawings shall be accompanied by engineering design calculations for the structural properties of the retrofit framing components and metal roof panel system, signed and sealed by a Professional Engineer licensed in the State of Florida.

B. Manufacturer’s product literature and materials specifications for retrofit framing system components including purlins and supports, clips, bracing and connection fasteners.

C. A minimum of five (5) project references of similar use and size listing the Architect, owner, location, scope and name of project as provided by the manufacturer.

D. All submittals shall be approved prior to ordering, fabrication, or installation.

1.6 DELIVERY AND STORAGE

A. Materials shall be delivered to the site in a dry and undamaged condition and stored out of contact with the ground. Materials shall be covered with weathertight coverings and kept dry.

PART 2 – PRODUCTS

2.1 RETROFIT SYSTEM

A. Shall be: McElroy-Flat/Low Slope Roof Retrofit System; Varco Pruden-Slope Build Up

System; MBCI NuRoof Retrofit Roof System; or approved equal.

B. Supply all products specified in this section from the same manufacturer as for Specification

074100.

2.2 FRAMING SYSTEM COMPONENTS

RETROFIT ROOF FRAMING SYSTEMS 054610 - 4

A. The retrofit framing manufacturer shall engineer the framing system to comply with the

“Design Intent” of the existing roof’s supporting structure to ensure that all new load-bearing or load-transferring members are anchored to and located directly over existing secondary or primary load bearing support members. The retrofit framing system shall consist of any of the following components based on the Manufacturer’s design and in accordance with the specifications herewith.

1. Base clips for purlin supporting member attachment shall be a minimum

4”x4”x3½”x14-guage steel angle having of 14.0 square inches of bearing surface area.

2. Base channel members shall be a minimum 4-3/16”x2”x16-guage x 12” long having

50.25 square inches of bearing surface area.

3. Continuous base members shall be a minimum of 16-gauge formed steel channel, cee or zee shape.

4. Purlin supports (vertical members) shall be a minimum 4”x2”x18-guage formed steel channel or cee shape.

5. Purlins shall be a minimum 3½”x1½”x16-guage formed steel zee shape.

6. Purlin clips shall be a minimum 16-gauge formed steel angle shape.

7. Perimeter elevated wall framing members shall be a minimum of 16-guage formed steel, channel, and cee or custom shapes to satisfy conditions.

8. Transverse and longitudinal angle bracing shall be a minimum of 18-guage formed steel with a minimum 4” pre-formed girth.

9. Purlin stabilization shall be a minimum 0.023” thick x 2” wide x 55 KSI steel strapping.

10. Hat channels used for bracing, girts, struts or other members shall be a minimum of 22-gauge steel with galvanized, G-90 coating, in accordance with ASTM A 525.

2.3 MATERIALS

A. Steel sheet for roll-formed or press-broke members of the gauge indicated herein, conforming to ASTM A 1011 and minimum yield strength 55,000 PSI.

B. Structural shapes if required for special conditions shall conform to ASTM A 36 and minimum yield strength of 36,000 PSI.

C. Cold form steel framing system members of the minimum gauge indicated herein shall have a protective shop primer coating conforming to FS TT-P-646 with base steel prepared in accordance with SSPC-SP10.

D. Supply all hardware items required for installation of retrofit framing system in accordance with manufacturer’s installation instructions and other indicated items.

2.4 MISCELLANEOUS PRODUCTS

A. Fasteners and Anchors

1. Anchors used for the attachment of the new retrofit framing system to the existing roof structural support system shall be of the type and size that is appropriate for secure attachment to satisfy the required wind uplift pressure values at each location, as specified by the retrofit system manufacturer. All anchors shall attach directly into existing structural members. A minimum of two (2) anchors shall be used for base clips and channels.

2. Fasteners used for the retrofit framing system shall be a minimum ¼” diameter with 14 threads per inch having a stress relief head and a corrosion resistant coating.

RETROFIT ROOF FRAMING SYSTEMS 054610 - 5

B. Anchor Penetration Sealant

1. Temporary construction sealant shall be used at each anchor penetration at attachment locations of the new retrofit framing system to the existing roof structural support system. The Installer shall select the appropriate sealant type that is compatible with the existing roof membrane, which will provide a leak-free condition throughout the erection of the framing and the completion of the metal roof panel system installation.

The installing contractor is responsible for any and all leaks including damage to the building contents.

C. Insulation

1. Insulation shall be 2” vinyl backed type condensation control blanket of sufficient thickness to provide a minimum “R” value of 6 when tested in accordance with ASTM

C 177. Insulation shall have a vinyl backing providing permeability of 0.02 perms or less when tested in accordance with ASTM E 96. Vinyl backing shall have a flame spread rating of less than 25 when tested in accordance with ASTM C 84. Insulation shall conform to ASTM C 665, Type ll, Class A or Type lll, Class A.

2. Shall be included to ensure the building is upgraded to ASHRAE recommendations to meet the National Energy Standard. Unfaced fiberglass insulation can be installed directly over the existing roof to assist in meeting the National Energy Standard.

Thickness shall be calculated and submitted for approval prior to installation

D. Ventilation

1. Unless ventilation is provided by the standing seam roof cladding or other approved means, the contractor shall design and install ventilation components, accessories and/or assemblies that provide a minimum of 3-airchanges per hour for the cavity space between the existing and new roofs. Airflow calculations with appropriate literature shall be submitted for review and approval.

PART 3 – EXECUTION

3.1 DEMOLITION OF EXISTING ROOFING MATERIALS

A. Only as needed shall the contractor remove the existing roofing materials. It should be expected that some roofing material will require removal in order to install the attachment hardware for the retrofit roofing system, or to facilitate the installation of the insulation required to upgrade the building with ASHREA recommendations to meet the National Energy

Standard.

3.2 FRAMING SYSTEM INSTALLATION

A. General

1. Installation shall be as specified and in accordance with the retrofit systems manufacturer’s approved installation documents and erection drawings.

2. Install the retrofit framing system with consistent purlins erected without waves, warpage, buckles, fastening stresses or other distortion. Every care should be taken in the installation of the retrofit framing to minimize oil canning in the metal roof panel system.

RETROFIT ROOF FRAMING SYSTEMS 054610 - 6

3. Field cutting of framing members shall be done in a safe manner preventing damage to the existing roof or adjacent materials. The retrofit framing contractor shall use sound construction practices to minimize scrap and to utilize the material as provided by the retrofit system manufacturer.

4. Dissimilar materials that are not compatible when contacting each other shall be insulated from each other by means of gaskets or insulating compounds.

B. Erection Tolerances

1. Variation from plumb: 1/8 inch, maximum

2. Variation from level: 1/8 inch, maximum

3. Variation from true plane: 1/8 inch, maximum

4. Variation from true position: 1/4 inch, maximum

5. Variation of member from plane: 1/8 inch, maximum

3.3 EXTENSION OF EXISTING COMPONENTS

A. Extension of Electrical Service: When power vents are removed and reinstalled on curbs on the new metal roof panel system, the contractor shall extend the electrical service as required to render the power vent operational. Extensions shall be made with like gauge and type wire.

If the original service is run in conduit, conduit shall be installed on the extension. Junction boxes shall be provided at splices in wire or conduits. Junction boxes and conduit shall be secured to the steel framing structure. All work shall be accomplished to comply with the local electrical code.

B. Extension of Existing Plumbing Vents: During the installation of the specified metal roof panel system, the extension and flashing of existing plumbing vents shall be required. The contractor shall extend existing plumbing vents through the metal roof panels, as required and provide flexible vent pipe flashings at the roof panel penetration. Plumbing vent extensions shall be made with material of like composition of the plumbing vent being extended, and shall be securely braced within the attic space to ensure continued, uninterrupted service of the vent. As often as possible, when extending plumbing vents, the contractor shall ensure that the roof penetration is located between the side seams of the metal roof panels such that the malleable ring on the flexible vent pipe flashing will lay flat against the roof panel around it’s entire circumference. The contractor shall install elbow fittings to horizontally displace the pipe if necessary. The metal roof panel system manufacturer must approve plumbing vents that do not fall between side seams.

C. Extension of Existing Hot Flue Stacks: During the installation of the specified metal roof panel system, the extension and flashing of existing hot flue stacks shall be required. The contractor shall extend existing hot flue stacks through the metal roof panels, as required and provide flashings at the roof panel’s penetration. Flashings shall be flexible vent stack type or rooftop equipment curb type depending on the size of the existing stack. Hot flue stack extensions shall be of double wall construction made with material of like composition of the hot flue stack being extended, and shall be securely braced within the attic space to ensure continued service of the vent. Hot flue stacks shall be extended to be 3-feet higher than the elevation of any roof within a 10-foot radius of the hot flue stack penetration.

D. Extension of Existing Ductwork: When existing gravity vents, power vents, gooseneck fresh air make-up, and other vents are installed on curbs on the new metal roof panel system, the extension of vent ductwork will be required. The contractor shall extend existing ductwork through the metal roof panel system, as required to ensure the continued service of the vent.

RETROFIT ROOF FRAMING SYSTEMS 054610 - 7

Ductwork shall be securely attached to new rooftop equipment curb and joints shall be sealed tight to provide a leak-proof assembly. Ductwork extensions shall be made with material of like composition and gauge of the ductwork being extended.

3.4 REINSTALLATION OF EXISTING COMPONENTS

A. Reinstallation Of Existing Vents: During the installation of the specified metal roof panel system, the removal and reinstallation of existing power vents, gravity vents, and gooseneck vents shall be required. The contractor shall remove and reinstall vents indicated to extend through the metal roof panel system. The contractor shall have the responsibility to remove such vents without damage, and reinstall the vents on new rooftop equipment curbs. Vents shall be securely fastened to the equipment curb to prevent displacement and to provide a weathertight installation. In the case of power vents, the electrical service shall be extended to ensure continued service of the vent.

3.5 CLEAN UP

A. The Contractor shall protect installed products from damage by subsequent construction activities until final acceptance. The contractor shall collect and dispose of all framing system cuttings and debris including unused anchors, framing fasteners, sealant and associated material from the jobsite.

END OF SPECIFICATION 054610

Attachment D - BICY 251133 Specs

ROUGH CARPENTRY 061000 - 1

SPECIFICATION 061000 - ROUGH CARPENTRY

PART 1 - GENERAL

1.1 SUMMARY

A. Specification Includes:

1. Rooftop equipment bases and support curbs.

2. Wood blocking, cants, and nailers.

3. Wood sleepers.

1.2

ACTION SUBMITTALS

A. Product Data: For each type of process and factory-fabricated product.

1.3

INFORMATIONAL SUBMITTALS

A. Material Certificates: For dimension lumber specified to comply with minimum allowable unit stresses. Indicate species and grade selected for each use and design values approved by the ALSC

Board of Review.

B. Evaluation Reports: For the following, from ICC-ES:

1. Wood-preservative-treated wood.

2. Fire-retardant-treated wood.

3. Engineered wood products.

4. Power-driven fasteners.

5. Post-installed anchors.

6. Metal framing anchors.

PART 2 - PRODUCTS

2.1 WOOD PRODUCTS, GENERAL

A. Lumber: DOC PS 20 and applicable rules of grading agencies indicated. If no grading agency is indicated, comply with the applicable rules of any rules-writing agency certified by the ALSC

Board of Review. Grade lumber by an agency certified by the ALSC Board of Review to inspect and grade lumber under the rules indicated.

1. Factory mark each piece of lumber with grade stamp of grading agency.

2. For exposed lumber indicated to receive a stained or natural finish, mark grade stamp on end or back of each piece or omit grade stamp and provide certificates of grade compliance issued by grading agency.

3. Dress lumber, S4S, unless otherwise indicated.

ROUGH CARPENTRY 061000 - 2

B. Maximum Moisture Content of Lumber: 15 percent for 2-inch nominal thickness or less; 19 percent for more than 2-inch nominal thickness unless otherwise indicated.

2.2 WOOD-PRESERVATIVE-TREATED LUMBER

A. Preservative Treatment by Pressure Process: AWPA U1; Use Category UC3b for exterior construction not in contact with ground.

1. Preservative Chemicals: Containing no arsenic or chromium.

B. Kiln-dry lumber after treatment to a maximum moisture content of 19 percent. Do not use material that is warped or that does not comply with requirements for untreated material.

C. Mark lumber with treatment quality mark of an inspection agency approved by the ALSC Board of Review.

D. Application: Treat items indicated on Drawings, and the following:

1. Wood cants, nailers, curbs, equipment support bases, blocking, stripping, and similar members in connection with roofing, flashing, vapor barriers, and waterproofing.

2. Wood sills, sleepers, blocking and similar concealed members in contact with masonry or concrete.

2.3 FIRE-RETARDANT-TREATED MATERIALS

A. General: Where fire-retardant-treated materials are indicated, materials shall comply with requirements in this article and with fire-test-response characteristics specified as determined by testing identical products per test method indicated by a qualified testing agency.

B. Fire-Retardant-Treated Lumber and Plywood by Pressure Process: Products with a flame-spread index of 25 or less when tested according to ASTM E 84, and with no evidence of significant progressive combustion when the test is extended an additional 20 minutes, and with the flame front not extending more than 10.5 feet beyond the centerline of the burners at any time during the test.

1. Exterior Type: Treated materials shall comply with requirements specified above for fire-retardant-treated lumber and plywood by pressure process after being subjected to accelerated weathering according to ASTM D 2898. Use for exterior locations and where indicated.

2. Interior Type A: Treated materials shall have a moisture content of 28 percent or less when tested according to ASTM D 3201 at 92 percent relative humidity. Use where exterior type is not indicated.

C. Kiln-dry lumber after treatment to maximum moisture content of 19 percent.

D. Identify fire-retardant-treated wood with appropriate classification marking of qualified testing agency.

ROUGH CARPENTRY 061000 - 3

E. Application: Treat items indicated on Drawings, and the following:

1. Concealed blocking.

2. Roof construction.

2.4 DIMENSION LUMBER FRAMING

A. Framing Other Than Non-Load-Bearing Partitions: Construction or No. 2 grade.

1. Application: Framing.

2. Species:

a. Hem-fir (north); NLGA.

b. Southern pine; SPIB.

c. Douglas fir-larch; WCLIB or WWPA.

d. Southern pine or mixed southern pine; SPIB.

e. Spruce-pine-fir; NLGA.

f. Douglas fir-south; WWPA.

g. Hem-fir; WCLIB or WWPA.

h. Douglas fir-larch (north); NLGA.

i. Spruce-pine-fir (south); NeLMA, WCLIB, or WWPA.

B. Exposed Framing: Hand-select material for uniformity of appearance and freedom from characteristics, on exposed surfaces and edges, that would impair finish appearance, including decay, honeycomb, knot-holes, shake, splits, torn grain, and wane.

1. Species and Grade: As indicated above for load-bearing construction of same type.

2.5 MISCELLANEOUS LUMBER

A. General: Provide miscellaneous lumber indicated and lumber for support or attachment of other construction, including the following:

1. Blocking.

2. Nailers.

3. Rooftop equipment bases and support curbs.

4. Cants.

5. Furring.

B. Dimension Lumber Items: Construction or No. 2 grade lumber of any species.

C. Concealed Boards: 15 percent maximum moisture content and any of the following species and grades:

1. Mixed southern pine or southern pine; No. 2 grade; SPIB.

2. Eastern softwoods; No. 2 Common grade; NeLMA.

3. Northern species; No. 2 Common grade; NLGA.

4. Western woods; Construction or No. 2 Common grade; WCLIB or WWPA.

ROUGH CARPENTRY 061000 - 4

2.6 FASTENERS

A. General: Fasteners shall be of size and type indicated and shall comply with requirements specified in this article for material and manufacture.

1. Where rough carpentry is exposed to weather, in ground contact, pressure-preservative treated, or in area of high relative humidity, provide fasteners with hot-dip zinc coating complying with ASTM A 153/A 153M.

B. Power-Driven Fasteners: Fastener systems with an evaluation report based on ICC-ES AC70.

C. Post-Installed Anchors: Fastener systems with an evaluation report based on ICC-ES AC01, ICC-

ES AC58, ICC-ES AC193 or ICC-ES AC308 as appropriate for the substrate.

2.7 METAL FRAMING ANCHORS

A. Manufacturers

1. Simpson Strong-Tie Co.

2. USP Structural Connectors

3. KC Metals Products, Inc.

4. Approved equivalent

B. Allowable design loads, as published by manufacturer, shall meet or exceed those indicated.

Manufacturer's published values shall be determined from empirical data or by rational engineering analysis and demonstrated by comprehensive testing performed by an approved qualified independent testing agency. Framing anchors shall be punched for fasteners adequate to withstand same loads as framing anchors.

C. Galvanized-Steel Sheet: Hot-dip, zinc-coated steel sheet complying with ASTM

A 653/A 653M, G60 coating designation.

1. Use for interior locations unless otherwise indicated.

D. Hot-Dip, Heavy-Galvanized Steel Sheet: ASTM A 653/A 653M; structural steel (SS), high-strength low-alloy steel Type A (HSLAS Type A), or high-strength low-alloy steel Type B

(HSLAS Type B); G185 coating designation; and not less than 0.036 inch thick.

1. Use for wood-preservative-treated lumber and where indicated.

2.8 MISCELLANEOUS MATERIALS

A. Sill-Sealer Gaskets: Glass-fiber-resilient insulation, fabricated in strip form, for use as a sill sealer; 1-inch nominal thickness, compressible to 1/32 inch; selected from manufacturer's standard widths to suit width of sill members indicated.

B. Sill-Sealer Gaskets: Closed-cell neoprene foam, 1/4 inch-thick, selected from manufacturer's standard widths to suit width of sill members indicated.

ROUGH CARPENTRY 061000 - 5

C. Flexible Flashing: Composite, self-adhesive, flashing product consisting of a pliable, butyl rubber compound, bonded to a high-density polyethylene film, aluminum foil, or spunbonded polyolefin to produce an overall thickness of not less than 0.025 inch.

D. Adhesives for Gluing Furring and Sleepers to Concrete or Masonry: Formulation complying with

ASTM D 3498 that is approved for use indicated by adhesive manufacturer.

PART 3 - EXECUTION

3.1 INSTALLATION, GENERAL

A. Framing Standard: Comply with AF&PA's WCD 1, "Details for Conventional Wood Frame

Construction," unless otherwise indicated.

B. Framing with Engineered Wood Products: Install engineered wood products to comply with manufacturer's written instructions.

C. Set rough carpentry to required levels and lines, with members plumb, true to line, cut, and fitted.

Fit rough carpentry accurately to other construction. Locate furring, nailers, blocking and similar supports to comply with requirements for attaching other construction.

D. Install shear wall panels to comply with manufacturer's written instructions.

E. Install metal framing anchors to comply with manufacturer's written instructions. Install fasteners through each fastener hole.

F. Do not splice structural members between supports unless otherwise indicated.

G. Comply with AWPA M4 for applying field treatment to cut surfaces of preservative-treated lumber.

H. Where wood-preservative-treated lumber is installed adjacent to metal decking, install continuous flexible flashing separator between wood and metal decking.

I. Securely attach rough carpentry work to substrate by anchoring and fastening as indicated, complying with the following:

1. Table 2304.9.1, "Fastening Schedule," in ICC's International Building Code (IBC).

2. Table R602.3(1), "Fastener Schedule for Structural Members," and Table R602.3(2), "Alternate Attachments," in ICC's International Residential Code for One- and Two-

Family Dwellings.

3. ICC-ES evaluation report for fastener.

ROUGH CARPENTRY 061000 - 6

3.2 PROTECTION

A. Protect wood that has been treated with inorganic boron (SBX) from weather. If, despite protection, inorganic boron-treated wood becomes wet, apply EPA-registered borate treatment.

Apply borate solution by spraying to comply with EPA-registered label.

B. Protect rough carpentry from weather. If, despite protection, rough carpentry becomes wet enough that moisture content exceeds that specified, apply EPA-registered borate treatment. Apply borate solution by spraying to comply with EPA-registered label.

END OF SPECIFICATION 061000

PREPARATION FOR REROOFING 070150 - 1

SPECIFICATION 070150 - PREPARATION FOR REROOFING

1. Repairs and full tear-off of roof system as indicated by the required engineering survey.

2. Re-cover preparation of roof areas as indicated by the required engineering survey.

3. Removal of flashings and counter flashings.

1.2 PREINSTALLATION MEETINGS

A. Preliminary Roofing Conference: Before starting removal or repair work, conduct conference at

Project site. Contractor shall provide Contracting Officer Representative with not less than 72 hours' notice for coordination of attendence.

1.3 INFORMATIONAL SUBMITTALS

A. Photographs or Videotape: Show existing conditions of adjoining construction and site improvements, including exterior and interior finish surfaces, that might be misconstrued as having been damaged by reroofing operations.

1. Submit before Work begins.

1.4 QUALITY ASSURANCE

A. Installer Qualifications: Approved by manufacturer of proposed roofing system to work on existing roofing. Shall also be approved by the CO through submittal.

1.5 FIELD CONDITIONS

A. Existing Roofing System: Built-up asphalt, SBS-modified bituminous, and asphalt shingle.

B. Owner will occupy portions of building immediately below reroofing area.

1. Conduct reroofing so Owner's operations are not disrupted.

2. Provide Contracting Officer’s Representative with not less than 72 hours' written notice of activities that may affect Owner's operations.

3. Coordinate work activities daily with Contracting Officer’s Representative so Owner has adequate advance notice to place protective dust and water-leakage covers over sensitive equipment and furnishings, shut down HVAC and fire-alarm or detection equipment if needed, and evacuate occupants from below work area.

PREPARATION FOR REROOFING 070150 - 2

4. Before working over structurally impaired areas of deck, notify Contracting Officer’s Representative to evacuate occupants from below affected area.

a. Verify that occupants below work area have been evacuated before proceeding with work over impaired deck area.

C. Protect building to be repaired and reroofed, adjacent buildings, walkways, site improvements, exterior plantings, and landscaping from damage or soiling from reroofing operations.

D. Maintain access to existing walkways, corridors, and other adjacent occupied or used facilities.

E. Conditions existing at time of inspection for bidding will be maintained by Owner as far as practical.

F. Protect existing roof by limiting construction loads on existing roof areas to remain, and existing roof areas scheduled to be reroofed.

G. Weather Limitations: Proceed with reroofing preparation only when existing and forecasted weather conditions permit work to proceed without water entering existing roofing system or building.

1. Remove only as much roofing in one day as can be made watertight in the same day.

2.1 AUXILIARY REROOFING MATERIALS

A. General: Use auxiliary reroofing preparation materials recommended by roofing system manufacturer for intended use and compatible with components of existing and new roofing

3.1 PREPARATION

A. Seal or isolate windows that may be exposed to airborne substances created in removal of existing materials.

B. Shut off rooftop utilities and service piping before beginning the work.

C. Test existing roof drains to verify that they are not blocked or restricted.

D. Coordinate with Contracting Officer’s Representative to shut down air-intake equipment in the vicinity of the work.

1. Cover air-intake louvers before proceeding with reroofing work that could affect indoor air quality or activate smoke detectors in the ductwork.

E. During removal operations, have sufficient and suitable materials on-site to facilitate rapid

PREPARATION FOR REROOFING 070150 - 3

installation of temporary protection in the event of unexpected rain.

F. Maintain roof drains in functioning condition to ensure roof drainage at end of each workday.

3.2 ROOF TEAR-OFF

A. Notify Contracting Officer’s Representative 72 hours prior to starting a proposed roof tear-off and obtain authorization to proceed.

B. Partial Roof Repair: Where indicated from the Engineering Roof Survey of the existing roofs for structural soundness repair in order to proceed with installation of approved reroofing

1. Remove components required to make the repairs

2. Repair and replace the unusable roofing components as indicated by the Engineering

Roof Survey.

C. Full Roof Tear-off: Where indicated on Drawings, remove existing roofing and other roofing system components down to the existing roof deck.

1. Remove all components of the roof down to the deck, and replace decking as indicated by the

Engineering Roof Survey.

3.3 DECK PREPARATION

A. Inspect deck after tear-off and repairs are complete.

B. If broken or loose fasteners that secure deck panels to one another or to structure are observed, or if deck appears or feels inadequately attached or there is another noted problem with the deck or repair, immediately notify Contracting Officer’s Representative. Do not proceed with installation until directed by Contracting Officer’s Representative.

3.4 BASE FLASHING REMOVAL

A. Remove existing base flashings as noted as required by inspection.

B. Do not damage metal counter flashings that are to remain.

1. Replace metal counter flashings damaged during removal with new counter flashings.

C. Inspect parapet sheathing, wood blocking, curbs, and nailers for deterioration and damage.

1. If parapet sheathing, wood blocking, curbs, or nailers have deteriorated, immediately notify

Contracting Officer’s Representative.

END OF SPECIFICATION 070150.19

STANDING SEAM METAL ROOF 074100 - 1

SPECIFICATION 074100 - STANDING SEAM METAL ROOF

PART 1 GENERAL

1.1 SPECIFICATION INCLUDES

A. Standing seam metal roofing system.

B. Metal roofing accessories.

C. Metal roofing edge metal and flashing.

1.2 RELATED SPECIFICATIONS

A. Specification 076200 - Sheet Metal Flashing and Trim.

B. Specification 077100 - Roof Specialties

C. Specification 079200 - Joint Sealants

1.3 REFERENCES

A. ASTM A 653/A 653M - Standard Specification for Steel Sheet, Zinc-Coated (Galvanized) or

Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process.

B. ASTM A 792/A 792M - Standard Specification for Steel Sheet, 55% Aluminum-Zinc Alloy-

Coated by the Hot-Dip Process.

C. ASTM B 209 - Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate.

D. ASTM E 1592 - Standard Test Method for Structural Performance of Sheet Metal Roof and

Siding Systems by Uniform Static Air Pressure Difference.

E. ASCE 7 - Minimum Design Loads for Buildings and Other Structures.

F. UL 580 - Standard for Tests for Uplift Resistance of Roof Assemblies.

G. UL 790 - Standard Test Methods for Fire Tests of Roof Coverings.

H. UL 1897 - Uplift Test for Roof Covering Systems.

I. I. ICC-ES AC166 - Test Procedure for Wind Driven Rain Resistance of Metal Roof Coverings.

J. J. Miami-Dade Building Code Compliance - N.O.A. (Notice of Acceptance).

1.4 DESIGN / PERFORMANCE REQUIREMENTS

A. Standing Seam Roofing System:

1. Thermal Expansion and Contraction:

a. Completed metal roofing and flashing system shall be capable of withstanding expansion and contraction of components caused by changes in temperature without buckling, producing excess stress on structure, anchors or fasteners, or reducing performance ability.

b. Interface between panel and clip shall provide for unlimited thermal movement

STANDING SEAM METAL ROOF 074100 - 2

in each direction along the longitudinal direction.

c. Location of metal roofing rigid connector shall be at roof ridge unless otherwise approved by the Contracting Officer. Metal ridge connector may require design as per job conditions by specified manufacturer.

2. Uniform Wind Load Capacity:

a. Installed roof system shall withstand negative (uplift) design wind loading pressures complying with the following criteria.

1) Design Code: ASCE 7-16, for the site location for wind speed and other parameters.

2) Safety Factor: 1.67 after any load reduction or material stress increase.

3) Category II Building with an Importance Factor of 1.

b. ASTM E 1592: Capacity shall be determined using pleated airbag method in accordance with ASTM E 1592, testing of sheet metal roof panels. Allowable safe working loads shall be determined by dividing the ultimate test load by the safety factor specified above.

c. Shall be approved through the FBC for uplift pressures and rated for the ASCE

7-16 established wind loads.

3. Capacities for gauge, span or loading other than those tested may be determined by interpolation of test results within the range of test data. Extrapolations for conditions outside test range are not acceptable.

4. Water penetration (dynamic pressure): No water penetration, other than condensation, when exposed to dynamic rain and 70 mph wind velocities for not less than 5-minutes duration, when tested in accord with principles of AAMA 501.1.

5. Wind and wind driven rain resistance: No water penetration or panel movement when exposed to 110 mph wind velocities when tested in accordance with TAS 100.

6. Water penetration in low slope applications: No water penetration or panel movement when subject to 6-inch head of water for 6 hours when tested in accordance with the

ASTM E 2140 and when subject to 6 inch head of water for 7 days when tested in accordance with the TAS 114 appendix G.

1.5 SUBMITTALS

A. Provide the following upon bid submittal.

1. Written certification from the roofing system manufacturer corporate officer certifying that the applicator is approved for installation of the specified roofing system.

2. Sample copy of contractor’s workmanship warranty.

3. Sample copy of specified Manufacturer’s warranty.

4. Copy of Florida Building Code Acceptance for the Standing Seam Roofing System.

B. Product Data: Submit brochures, literature, and illustrations to indicate the performance, fabrication procedures, product variations, and accessories.

1. Within four (4) weeks of award of contract, submit:

a. Manufacturer’s specifications and other independent test data according to needed to prove compliance with specified requirements.

e. All warranty requirements and information applicable to the project.

C. Design Loads: Submit manufacturer's minimum design load calculations according to ASCE

7-16. In no case shall the design loads be taken to be less than those specified herein.

D. Dead Load Evaluation: Provide documentation from a licensed structural engineer of a structural evaluation of the roof structure and its suitability for the new imposed roofing loads.

STANDING SEAM METAL ROOF 074100 - 3

E. Shop Drawings: Prepared specifically for this project; showing dimensions of metal roofing and accessories, fastening details and connections and interface with other products. Shop drawings shall be stamped or sealed by a professional engineer licensed in the state of

Florida. Shop drawings shall have all design loads listed with the performance of the roofing system’s ability to meet design loads in the tables.

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

G. Closeout Submittals:

1. Provide manufacturer's maintenance instructions that include recommendations for periodic checking and maintenance of installed roof system.

2. Provide executed copy of manufacturer's warranty.

1.6 QUALITY ASSURANCE

A. Manufacturer Qualifications: Manufacturer’s representative shall be on-site at key installations points to ensure the roofing system is installed to meet warranty requirements. Presence of the manufacturer’s representative or inspector shall be the responsibility of the contractor and included in the contract cost.

B. Installer Qualifications: Certified and approved installer by the sheet metal roofing manufacturer.

1.7 PRE-INSTALLATION CONFERENCE

A. Convene a pre-roofing conference approximately 2-weeks before scheduled commencement of roofing system installation and associated work.

B. Require attendance of installers of deck or substrate construction to receive roofing, installers of rooftop units and other work in and around roofing which must precede or follow roofing work including mechanical work, Contracting Officer’s

Representative, and roofing system manufacturer's representative at the cost of the contractor.

C. Objectives include:

1. Review foreseeable methods and procedures related to roofing work, including set up and mobilization areas for stored material and work area.

2. Tour representative areas of roofing substrates, inspect and discuss condition of substrate, roof drains, curbs, penetrations and other preparatory work.

3. Review structural loading limitations of deck and inspect deck for loss of flatness and for required attachment.

4. Review roofing system requirements, Shop-Drawings, Specifications and other

Contract Documents.

5. Review and finalize schedule related to roofing work and verify availability of materials, installer's personnel, equipment and facilities needed to make progress and avoid delays.

6. Review required inspection, testing, certifying procedures.

7. Review weather and forecasted weather conditions and procedures for coping with unfavorable conditions, including possibility of temporary roofing.

8. Record conference including decisions and agreements reached. Furnish a copy of records to each party attending.

STANDING SEAM METAL ROOF 074100 - 4

PART 2 PRODUCTS

2.1 MANUFACTURERS

A. Roofing Manufacturer of the metal over shingle roofing system shall be:

1. McElroy Roofing

2. Tremco Roofing

3. Approved equal

B. Manufacturer of standing seam panels shall be the same manufacturer of standing seam of metal product fasteners.

2.2 STANDING SEAM METAL ROOFING

A. Specifications:

1. Width of Standing T-Seam Panel: 16 inches

2. Panels designed to be used on roof slopes that vary from very low slope bituminous rolled roof at ½:12, to very steep, nearly vertical mansard style double slope roofs.

3. Flashing and flat stock material: Fabricate in profiles of same material, thickness, and finish as roof system, unless indicated otherwise.

4. Panel material: 22-gauge

5. Color/coating: Galvalume

6. Flashing and flat stock material: Fabricate in profiles indicated on Drawings of same material, thickness, and finish as roof system, unless indicated otherwise.

7. Accessory Components:

a. Anchor Clips:

1) Concealed Standard Anchor Clips: Clips 16-gauge stainless steel, alloy

316L, 1-piece clip with projecting legs for additional panel alignment and provision for unlimited thermal movement in each direction along the longitudinal dimension.

b. Provide all miscellaneous accessories for complete installation.

2.3 STANDING SEAM METAL ROOFING ACCESSORIES

A. Sealant:

1. Concealed Applications: Non-Curing Butyl Sealant - Schnee-Morehead, Inc. SM5430 Acryl-R, or equal.

2. Exposed Applications: UV Resistant Tripolymer Sealant - Geocel Corporation, 2300

Tripolymer Sealant, or equal.

PART 3 EXECUTION

3.1 EXAMINATION

A. Examine surfaces to receive metal roofing. Notify the Contracting Officer’s Representative in writing of any defective conditions encountered.

B. Structural Deck Substrate:

STANDING SEAM METAL ROOF 074100 - 5

1. Inspect roof deck to verify deck is clean and smooth, free of depressions, waves, or projections, and properly sloped.

2. Verify deck is dry and joints are solidly supported and fastened.

3. Verify wood nailers are installed and correctly located. Do not use pressure-treated wood containing salt-based preservatives or materials corrosive to steel.

C. Structural Framing Substrate:

1. Verify primary and secondary framing members are installed and fastened, properly aligned and sloped.

2. Verify damaged shop coatings are repaired with touch up paint.

D. Verify roof openings, curbs, pipes, sleeves, ducts, or vents through roof are solidly set, reglets are in place, and nailing strips located.

E. Correct defective conditions before beginning work.

3.2 INSTALLATION

A. Install metal roofing and accessories in conformance with the approved manufacturers installation instructions and stamped or sealed shop drawings, in order to maintain uplift and design standards.

3.3 PROTECTION

A. Protect installed products until completion of project.

B. Touch-up, repair or replace damaged products before Substantial Completion.

3.4 FIELD QUALITY CONTROL

A. Inspection: Provide manufacturer's field observations at intervals of two times per month or more frequently if required to meet manufacturer’s representative requirements for warranty of the materials and installation. In addition, as key milestones for the project, the manufacturer’s representative shall provide a project pre-evaluation proposed installation summary as well as a final inspection upon completion of the Work.

1. Warranty shall be issued upon manufacturer's acceptance of the installation.

2. Field observations shall be performed by a manufacturer’s representative employed full-time by the manufacturer and whose job description is to assist, inspect and approve installations for the manufacturer.

3. Provide observation reports from the manufacturer’s representative indicating procedures followed, weather conditions and any discrepancies found during inspection.

4. Provide a final report from the manufacturer’s representative, certifying that the roofing system has been satisfactorily installed according to the project specifications, approved details and good general roofing practice.

END OF SPECIFICATION 074100

FIBER-CEMENT SOFFIT 074646 –1

1/2

SPECIFICATION 074646 - FIBER-CEMENT SOFFIT

A. Specification includes fiber-cement soffit.

A. Product Data: For each type of product.

A. Product certificates.

B. Product test reports.

C. Research/evaluation reports.

D. Sample warranty.

1.4

CLOSEOUT SUBMITTALS

A. Maintenance data.

1.5 WARRANTY

A. Product Warranty Period: 10 years from date of Substantial Completion

2.1 FIBER-CEMENT SOFFIT

A. General: ASTM C 1186, Type A, Grade II, fiber-cement board, noncombustible when tested according to ASTM E 136; with a flame-spread index of 25 or less when tested according to

ASTM E 84. Shall have Miami-Dade Notice of Approval for impact hazards.

1. Manufacturers:

a. James Hardie Hardisoffit

b. Allura soffit

c. Or approved equal

B. Nominal Thickness: As per Miami-Dade NOA.

FIBER-CEMENT SOFFIT 074646 –2

1/2

C. Pattern:

1. Continuous vented with smooth texture for vented attic

2. Non-vented with smooth texture for unvented attic.

D. Factory Priming: Manufacturer's standard acrylic primer.

2.2 ACCESSORIES

A. Fasteners:

1. Use 316 Stainless Steel ribbed bugle-head screws of sufficient length to penetrate a minimum of 1.5 times the thickness of the soffit, into substrate.

B. Soffit Vents: Vented Panels

1. Provide fiberglass (ortho-phthalate free) insect screen fastened to rear of fiber cement panel at areas of penetrations. Insect screen shall be tight fitted to fiber board as to prevent small insects (no-see-ums, gnats, sand flies, etc…) from entering the attic / soffit areas. Install with joint sealants on the back side of the soffit to ensure a tight installation.

3.1 INSTALLATION

A. General: Install soffit in accordance with the approved Miami-Dade NOA or Florida Building Code requirements.

B. Install joint sealants as specified in Specification 079200 Joint Sealants to produce a weathertight installation.

3.2 ADJUSTING AND CLEANING

A. Remove damaged, improperly installed, or otherwise defective materials and replace with new materials complying with specified requirements.

B. Clean finished surfaces according to manufacturer's written instructions and maintain in a clean condition during construction.

END OF SPECIFICATION 074646

SHEET METAL FLASHING AND TRIM 076200 - 1

SPECIFICATION 076200 - SHEET METAL FLASHING AND TRIM

1. Formed roof-drainage sheet metal fabrications.

2. Formed low-slope roof sheet metal fabrications.

1.2 PREINSTALLATION MEETINGS

A. Preinstallation Conference: Conduct conference at Project site.

1.3 ACTION SUBMITTALS

B. Shop Drawings: For sheet metal flashing and trim.

1. Include plans, elevations, Specifications, and attachment details.

2. Distinguish between shop- and field-assembled work.

3. Include identification of finish for each item.

4. Include pattern of seams and details of termination points, expansion joints and expansion-joint covers, direction of expansion, roof-penetration flashing, and connections to adjoining work.

C. Samples: For each exposed product and for each color and texture specified.

1.4 INFORMATIONAL SUBMITTALS

A. Product certificates.

B. Product test reports.

C. Sample warranty.

1.5 CLOSEOUT SUBMITTALS

A. Maintenance data.

SHEET METAL FLASHING AND TRIM 076200 - 2

1.6 QUALITY ASSURANCE

A. Fabricator Qualifications: Employs skilled workers who custom fabricate sheet metal flashing and trim similar to that required for this Project and whose products have a record of successful in-service performance.

2.1 PERFORMANCE REQUIREMENTS

A. General: Sheet metal flashing and trim assemblies shall withstand wind loads, structural movement, thermally induced movement, and exposure to weather without failure due to defective manufacture, fabrication, installation, or other defects in construction.