07410-STANDING_SEAM_MTL_ROOFING_(Per_Addendum_1).pdf

CLAY CO FIRE STATION 24 07410-1 STANDING SEAM

DHA COMM. NO. 22003 METAL ROOFING

SECTION 07410

STANDING SEAM METAL ROOFING

REVISED PER ADDENDUM #1

PART 1 - GENERAL

1.1 SUMMARY

A. This Section covers the, pre-finished, pre-fabricated Architectural standing seam roof system. All metal trim, accessories, fasteners, insulation, and sealants indicated on the drawings as part of this section.

B. Related Sections include the following:

1. Section 06 1000 – Rough Carpentry

1.2 QUALITY ASSURANCE

A. Manufacturer and erector shall demonstrate experience, of a minimum of ten (10) years in this type of project.

1.3 SUBSTITUTIONS

A. The material, products and equipment specified in this section establish a standard for required function, dimension, appearance and quality to be met by any proposed substitution.

1.4 ROOF SYSTEM PERFORMANCE TESTING

A. Water Penetration: When tested per ASTM E-283/1680 and ASTM E-331/1646 there shall be no uncontrolled water penetration or air infiltration through the panel joints.

B. Roof System shall be designed to meet Florida Building Code wind load requirements.

C. Roof System shall be designed to meet a UL Class 90 wind uplift in accordance with UL standard 580 and panel system shall be Miami-Dade NOA® Tested and approved with the current Miami-Dade NOA® Approval number listed and shown clearly in the submittals.

D. Roof system shall have current FLORIDA BUILDING CODE PRODUCT. APPROVAL and shall be supported by ASCE 7 “stamped/sealed” Florida Independent Engineer Calculations from the Roofing System Manufacturer to support the applicable Zone 1, Zone 2 and Zone 3 loads for this particular project. Extrapolations will not be allowed in these calculations, only interpolations by the Engineer to illustrate the clip layout for each Zone listed above.

CLAY CO FIRE STATION 24 07410-2 STANDING SEAM

1.5 WARRANTIES

A. Weathertight warranty: Manufacturer's standard form in which manufacturer agrees to repair or replace standing seam metal roof panel assemblies that fail to remain weathertight, including leaks, within specified warranty period.

1. Warranty Period: 20 Years from date of Substantial Completion

B. Finish Warranty:

1. Manufacturer's standard form in which manufacturer agrees to repair finish or replace standing seam metal roof panels that show evidence of deterioration of factory-applied finish within specified warranty period.

a. Exposed Panels Finish - deterioration includes the following:

1) Color fading more than 5 hunter units when tested according to ASTM

D 2244

2) Chalking in excess of a No. 8 rating when tested according to ASTM

D 4214

3) Cracking, checking, peeling or failure of a paint to adhere to a bare metal.

b. Warranty Period: 20 Years from the date of substantial completion

C. Applicator shall furnish written warranty for a two (2) year period from date of substantial completion of building covering repairs required to maintain roof and flashings in watertight condition.

1.6 SUBMITTALS

A. Furnish detailed drawings showing profile and gauge of exterior sheets, location and type of fasteners, location, gauges, shape and method of attachment of all trim locations and type of sealants, and any other details as may be required for a weather-tight installation..

B. Provide finish samples of all colors specified.

PART 2 - PRODUCTS

2.1 PANEL DESIGN

A. Roof panels shall be standing seam in 16" widths with 1 ¾" high seam with pencil ribs.

B. Panels to be produced with Factory supplied hot melt mastic in the seams.

C. Panels to be designed for attachment with concealed fastener clips, spaced as required by the manufacturer to provide for both positive and negative design loads, while allowing for the expansion and contraction of the entire roof system resulting from variations in temperature.

CLAY CO FIRE STATION 24 07410-3 STANDING SEAM

D. Forming: Use continuous end rolling method. No end laps on panels. No "portable roll-forming machines will permitted on this project, no installer-owned or installer- rented machines will be permitted. It is the intent of the Architect to provide Factory- Manufactured panel systems only for this project.

2.2 ACCEPTABLE MANUFACTURERS

A. This project is detailed around the roofing product of Petersen Aluminum Corporation, Kennesaw, GA "SNAP-CLAD" PANEL, B. Subject to compliance with specifications, equivalent products from the following manufacturers are acceptable. Equivalency is subject to review and confirmation by the architect.

1. Berridge

2. Atas

3. Englert

4. Gulf Coast Supply

5. Tri County Metals

2.3 PANEL MATERIAL AND FINISHES

A. Preformed roofing panels shall be fabricated of 22 GA Steel

B. Finish

1. Finish shall be Kynar 500 or Hylar 5000 Flurocarbon coating with a top side film thickness of 0.70 to 0.90 mil over 0.25 to 0.31 mil prime coat to provide a total dry film thickness of 0.95 to 1.25 mil. Bottom side shall be coated with a primer with a dry film thickness of 0.25 mil. Finish shall conform to all tests for adhesion, flexibility and longevity as specified by Kynar 500 or Hylar 5000 finish supplier.

2. If Strippable coating shall be applied on the pre-finished panels to the top side to protect the finish during fabrication, shipping and field handling. This strippable coating shall be removed before installation.

3. Field protection must be provided by the Contractor at the job site so material is not exposed to weather and moisture

4. Color to be selected by Architect from full range of manufacturer’s options.

C. Trim: Trim shall be fabricated of the same material and finish to match the profiled sheeting and press broken in lengths of 10 to 12 feet. Trim shall be formed only by the manufacturer or their approved dealer. Trim to be erected in overlapped condition. Use lap strips only as indicated on drawings.

D. Closures: Use composition or metal profiled closures at top of each elevation to close ends of the panels. Metal closures to be made in the same material and finish as face sheet.

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E. Exposed Fasteners: (if used) with Approval by Architect, shall be 300 series stainless steel, dished washers stainless steel with bonded neoprene.

F. Zees: Where required by design of primary structural framing system shall be used to span between beams and/or joists. Thermally responsive base and top clips shall be fastened to the zees on 12" centers.

2.4 ACCESSORIES

A. Clips shall be Stainless Steel as recommended by the Manufacturer for the respective wind uplifts for the project.

B. Clip screws shall be Stainless Steel as recommended by the Manufacturer to comply with the Florida Product Approval in place for this panel system.

2.5 ROOFING UNDERLAYMENT

A. On all surfaces to be covered with roofing material, furnish and install a Minimum thickness of 40 Mil "Peel & Stick Membrane” will be required as outlined by the metal panel manufacturer.

B. Membrane to be minimum of 40 MIL Thickness, smooth, non-granular, one of the following manufacturers:

1. W.R. Grace “Ice & Water Shield”.

2. Carlisle: CCW WIP 300HT.

3. Mid States Asphalt : Quick Stick HT.

4. MFM Corp : ‘’Wind & Water Shield’’.

5. Polyguard: Deck Guard HT or Polyglas HT.

6. TAMKO: TW Tile & Metal Underlayment.

C. Underlayment shall be laid in horizontal layers with joints lapped toward the eaves a minimum of 6", and well secured along laps and at ends as necessary to properly hold the underlayment in place. All underlayment shall be preserved unbroken and whole.

D. Ice & Water Shield shall lap all hips and ridges at least 12" to form double thickness and shall be lapped 6" over the metal of any valleys or built-in gutters and shall be installed as required by the Standing Seam Panel Manufacturer to attain the desired 20 Year Weather-tightness Warranty.

2.6 Sealants

A. Provide two part polysulfide class “B” non-sag type for vertical and horizontal joints, or;

B. One part polysulfide not containing pitch or phenolic extenders, or;

C. Exterior grade silicone sealant recommended by roofing manufacturer, or;

CLAY CO FIRE STATION 24 07410-5 STANDING SEAM

D. One part non-sag, gun grade, exterior type polyurethane recommended by roofing manufacturer.

2.7 FABRICATION

A. Comply with dimensions, profile limitations, gauges and fabrication details shown and if not shown and, if not shown, provide manufacturer's standard product fabrication.

B. Fabricate components of the system in factory, ready for field assembly.

C. Fabricate components and assemble units to comply with fire and performance requirements specified.

D. Apply specified finishes in conformance with manufacturer's standards, and according to manufacturer's instructions.

PART 3 - EXECUTION

3.1 INSPECTION

A. Examine alignment of structural steel and related supports prior to installation and do not proceed until the defects are corrected by the responsible contractor.

3.2 FASTENERS

A. Secure units to supports.

B. Place fasteners as indicated in manufacturer's standards.

3.3 INSTALLATION

A. Panels shall be installed plumb and true in proper alignment and relation to the structural framing. The erector must have at least five years successful experience with similar applications.

B. Install metal panels, fasteners, trim and related sealants in accordance with approved shop drawings and as may be required for a weather-tight installation.

C. Remove all strippable coating and provide a dry wipe-down cleaning of the panels as they are erected.

D. Field Inspection of installed panel roof system by Metal Panel Manufacturer Factory- Approved/Authorized inspector will be required for the 20 Year Limited Weathertightness Warranty. Minimum of two (2) inspections by the Factory Inspector will be required with written reports of these inspections.

E. Roofing System Installers must be “pre-approved” by the Roofing System manufacturer, been in business for at least five (5) years and provide evidence of three (3) similar size projects with the specified Weathertightness Warranty.

CLAY CO FIRE STATION 24 07410-6 STANDING SEAM

3.4 DAMAGED MATERIAL

A. Upon determination of responsibility, repair or replace damaged metal panels and trim to the satisfaction of the Architect and Owner.

END OF SECTION 07410