> Project Number: AW 2226
>
> Contract Number: TW-0681 Date: May 5, 1995

SPECIAL SPECIFICATION

SECTION 07411

**[MANUFACTURED METAL ROOF PANELS]{.underline}**

[Page]{.underline}

PART 1- GENERAL

1.01 Description of Work 2

1.02 References 2

1.03 System Description 3

1.04 Submittals 3

1.05 Quality Assurance 3

1.06 Warranty 3

PART 2- PRODUCTS

2.01 Materials 4

2.02 Roof System 4

2.03 Finishes 5

PART 3- EXECUTION

3.01 Examination 5

3.02 Installation 6

3.03 Cleaning and Protection 6

SPECIAL SPECIFICATION

SECTION 07411

[MANUFACTURED METAL ROOF PANELS]{.underline}

# PART 1 - GENERAL

## 1.01 [DESCRIPTION OF WORK]{.underline}

A. [This Section includes]{.underline} a manufactured metal roofing
system:

a\. Manufactured metal roof panels.

b\. Installation accessories.

B. [Related Sections]{.underline}: Refer to the following sections for
related work.

1\. Division 5, Sections "Structural Steel," "Metal Decking" and
"Cold-Formed Metal Framing"

2\. Division 7, Section "Manufactured Metal Wall Panels"

3\. Division 7, Section "Flashing and Sheet Metal" for sheet metal,
closures, flashing and trim, sheet metal gutters and downspouts.

## 1.02 [REFERENCES]{.underline}

A. [American Society for Testing and Materials (ASTM)]{.underline}

A792 Standard Specification for Steel Sheet, 55% Aluminum-Zinc
Alloy-Coated by the Hot-Dip Process, General Requirements

D226 Standard Specification for Asphalt-Saturated Organic Felt Used in
Roofing and Waterproofing

D4601 Standard Specification for Asphalt-Coated Glass Fiber Base Sheet
Used in Roofing

B. [Underwriters Laboratories, Inc. (UL)]{.underline}

Roofing Materials and Systems Directory

580 Tests for Uplift Resistance of Roof Assemblies; Underwriters
Laboratories, Inc.

## 1.03 [SYSTEM DESCRIPTION]{.underline}

A. [Environmental Requirements]{.underline}: Provide for expansion and
contraction of system components due to ambient temperature and solar
heat gain. Accommodate movement due to temperature change without
buckling, undue stress on structural elements, reduction of performance,
or other damaging effects.

Anticipated ambient temperature range: Minus 5 to plus 140 degrees F
(minus 21 to plus 60 degrees C).

B. [Wind Uplift]{.underline}: Provide metal roof panel systems which
have been tested in accordance with UL 580 and listed in the UL "Roofing
Materials and Systems Directory" for the following rating: Class 60
minimum.

## 1.04 [SUBMITTALS]{.underline}

A. [Product Data]{.underline}: Manufacturer's written technical
information, including performance data, details, and installation
recommendations, which demonstrate that metal panel assembly components
comply with Contract documents.

B. [Shop Drawings]{.underline}: Drawings which show arrangement and
orientation of panels, roof accessories as well as details of panel
joints, corners, custom profiles, supporting devices, and closure trim
and flashing. Show panel system in relation to adjacent construction.

C. [Samples for Selection of Coated Finishes]{.underline}: Coating
manufacturer's full range of color selection data.

D. [Provide certification]{.underline} that products used are
asbestos-free and lead paint-free.

E. [Warranty]{.underline}: Submit specimen copy of manufacturer's
warranty covering weathertightness and finish.

## 1.05 [QUALITY ASSURANCE]{.underline}

A. [Manufacturer Qualifications]{.underline}: A company with a minimum
of 5 years successful experience in the design, fabrication, and
installation of metal panel systems comparable in size and nature to
those required for this project.

B. [Field Measurements]{.underline}: Measure in-place construction on
which panel system will be installed if possible, before fabrication of
panels. If not feasible, fabricate material to allow in-field trimming
of panels to assure proper fit.

Coordinate field measurements and shop drawings with shop fabrication to
minimize field adjustments, splicing, and mechanical joints.

## 1.06 [WARRANTY]{.underline}

[Provide manufacturer's standard minimum 15 year warranty]{.underline}
for roof weathertightness and standard 20 year warranty on finish.

# PART 2 - PRODUCTS

## 2.01 [MATERIALS]{.underline}

> ["Galvalume" Sheet]{.underline}: ASTM A792; Steel sheet, coated with
> zinc-aluminum alloy.

## 2.02 [ROOF SYSTEM]{.underline}

A. [Manufacturer]{.underline}: Products of the following manufacturers,
provided they comply with requirements of the Contract documents and are
compatible with adjacent materials, will be among those considered
acceptable:

Architectural Panels, Inc.

Butler

Copper Sales, Inc.

Merchant & Evans, Inc.

Varco Pruden Roof Systems

B. [System Type]{.underline}: Standing seam system consisting of roof
panels with concealed attachment clips in panel; clips to rigid
substrate.

1\. Seam type: Factory-formed, field-clinched.

2\. Fabricate panels from "Galvalume" sheet steel, minimum 24 gage
(0.607 mm).

3\. Exterior Finish: "Galvalume."

4\. Interior (underside) Finish: Mill finish.

5\. Panel Width (nominal coverage): 24 inches (610 mm)

6\. Panel Profile: Manufacturer's standard.

C. [Underlayment]{.underline}: Unperforated asphalt-saturated felt; ASTM
D226, Type II or ASTM D4601, Type II.

D. [Concealed Panel Clips]{.underline}

1\. Fabricate from galvanized steel.

2\. Provide roof system manufacturer's standard type clips to suit
project requirements, including but to limited to the following:

a\. Live loads.

b\. Thermal movement; accommodate expansion and contraction without
introducing stress into roof system.

c\. Slope of roof.

d\. Special conditions at transitions, penetrations, and terminations.

E. [Fasteners]{.underline}

1\. Threaded Fasteners: Provide manufacturer's standard
corrosion-resistant fasteners of size and type required for intended
application.

2\. Rivets: Noncorrosive metal, compatible with metals to be fastened.

F. [Accessories]{.underline}

1\. Flexible Closures: Closed-cell neoprene rubber, formed to fit panel
profile with 5 to 10 percent compression when secured in place.

2\. Sheet Metal Closures, Flashing and Trim: Fabricate from same type of
sheet metal used for panel system, but with Fluoropolymer finish.

3\. Flexible Sheet Flashing: Comply with requirements of Contract
documents.

4\. Concealed Sealants and Gaskets: Manufacturer's standard.

5\. Exposed Joint Sealant: Comply with requirements of Contract
documents.

## 2.03 [FINISHES]{.underline}

A. [Mill Finish]{.underline}: All roof panels; As-fabricated, welds
cleaned and dressed, exposed welds ground smooth. Remove oil, grease,
dirt, and weld spatter from finished units.

B. [Flouropolymer Finish]{.underline}: At all exposed sheet metal
closures, flashings and trim.

1\. Pretreatment: Etch and conversion coating, each followed by water
rinse.

2\. Primer: Modified epoxy primer, minimum 0.2 mils (0.00508 mm) thick;
bake to cure.

3\. Finish Coat: 70 percent "Kynar 500" or "Hylar 5000" resin finish
coat, minimum 0.8 mils (0.02032 mm) thick; bake to cure.

Color: Selected from submittals from manufacturer's standard colors.

4\. Protection films provide strippable plastic film.

# PART 3 - EXECUTION

## 3.01 [EXAMINATION]{.underline}

A. [Verify that substrate or structural system]{.underline} to receive
work of this section is complete, properly sized, and is laid out
correctly in plan and elevations.

B. [Correct unacceptable substrate installations]{.underline} before
start of metal panel erection.

C. [Coordinate work]{.underline} with other adjacent elements of
building envelope to ensure watertight construction.

## 3.02 [INSTALLATION]{.underline}

A. [General]{.underline}: Install manufactured metal panels in
accordance with panel manufacturer's recommended practices.

1\. Fasten panels to structure as necessary to comply with performance
criteria, allowing for expansion and contraction due to temperature
variations and building movement.

2\. Install gaskets, sealants, closures, and trim as the work progresses
to ensure airtight and watertight performance of the completed
installation.

B. [Roof System Installation]{.underline}

1\. Underlayment: Install only when recommended by roof manufacturer to
isolate dissimilar materials or to comply with design, code, or warranty
criteria for the proposed assembly.

2\. Roof Panel Installation: Install roof panels using concealed clips
in panel joints.

> Use of exposed fasteners is not permitted unless specifically approved
> by the Sandia Delegated Representative (SDR).

3\. Field Seaming: Close seams using powered seaming tool of size and
type recommended by panel fabricator. Inspect and clean tool regularly
to avoid damage to prefinished surfaces.

## 3.03 [CLEANING AND PROTECTION]{.underline}

A. [Remove protective coverings]{.underline} from prefinished metal
surfaces after each panel is installed.

B. [Touch up or refinish]{.underline} marred or abraded surfaces.
Replace damaged units and units which cannot be refinished to the
architect's satisfaction.

C. [Clean finished surfaces]{.underline} using techniques and materials
recommended by panel manufacturer. Protect cleaned surfaces until
project completion.

END OF SECTION