PART 2 – PRODUCTS

2.1 SOURCE LIMITATIONS

A. Obtain roof specialties approved by manufacturer providing roofing-system warranty specified in
Section 07 53 23 – EPDM Roofing.

2.2 PERFORMANCE REQUIREMENTS

A. General Performance: Roof specialties to withstand exposure to weather and resist thermally induced
movement without failure, rattling, leaking, or fastener disengagement due to defective manufacture,
fabrication, installation, or other defects in construction.
B. SPRI Wind Design Standard: Manufacture and install copings and roof-edge specialties tested in
accordance with SPRI ES-1 and capable of resisting the following design pressures:
1. Design Pressure: As indicated on Drawings.
C. Thermal Movements: Allow for thermal movements from ambient and surface temperature changes to
prevent buckling, opening of joints, hole elongation, overstressing of components, failure of joint
sealants, failure of connections, and other detrimental effects. Provide clips that resist rotation and
avoid shear stress as a result of thermal movements. Base calculations on surface temperatures of
materials due to both solar heat gain and nighttime-sky heat loss.
1. Temperature Change (Range): 120 deg F, ambient; 180 deg F, material surfaces.

2.3 COPINGS
A. Metal Copings: Manufactured coping system, including custom coping, consisting of metal coping cap
in section lengths not exceeding 12 feet, concealed anchorage; with corner units, end cap units, and
concealed splice plates with finish matching coping caps.
1. Product/Manufacturer: Basis of design.
a. Permasnap Coping; Hickman an MTL Company.
2. Formed Aluminum Sheet Coping Caps: Aluminum sheet, 0.063 inch thick.
a. Surface: Smooth, flat finish.
b. Finish: Two-coat fluoropolymer.
c. Color: As selected by Architect from manufacturer’s full range.
3. Corners: Factory mitered and continuously welded.
4. Coping-Cap Attachment Method: Snap-on, fabricated from coping-cap material.
a. Snap-on Coping Anchor Plates: Concealed, galvanized-steel sheet, 12 inches wide, with integral
cleats.

2.4 ROOF-EDGE SPECIALTIES

A. Roof-Edge Brackets: Manufactured, two-piece, roof-edge brackets consisting of 16 gauge steel mechanically
fastened base-plate and top-bracket secured to wood blocking and designed to secure roofing membrane.
Continuous rails and panels to be provided by and installed by wall panel installer.
1. Product/Manufacturer: Basis of design.
a. Roof Edge Brackets; Exdesol Inc.
2. Formed Steel Brackets, 0.0635 inch thick.
a. Surface: Smooth, flat finish.
b. Finish: Mill
3. Corners: Factory mitered and mechanically clinched and sealed watertight.
4. Splice Plates: Concealed, of same material, finish, and shape as fascia cover.
5. Receiver: Galvanized-steel sheet, nominal 0.040-inch thickness.
6. Fascia Accessories: Fascia extenders with continuous hold-down cleats.

2.5 REGLETS AND COUNTERFLASHINGS
A. Reglets: Manufactured units formed to provide secure interlocking of separate reglet and counterflashing
pieces, from the following exposed metal:
1. Stainless Steel: 0.0250 inch thick.
2. Corners: Factory mitered and continuously welded.
3. Surface-Mounted Type: Provide reglets with slotted holes for fastening to substrate, with neoprene or
other suitable weatherproofing washers, and with channel for sealant at top edge.
4. Masonry Type, Embedded: Provide reglets with offset top flange for embedment in masonry mortar joint.

B. Counterflashings: Manufactured units of heights to overlap top edges of base flashings by 4 inches and in
lengths not exceeding 12 feet designed to snap into reglets and compress against base flashings with joints
lapped, from the following exposed metal:
1. Stainless Steel: 0.0250 inch thick.

C. Accessories:
1. Flexible-Flashing Retainer: Provide resilient plastic or rubber accessory to secure flexible flashing in
reglet where clearance does not permit use of standard metal counterflashing or where reglet is
provided separate from metal counterflashing.
2. Counterflashing Wind-Restraint Clips: Provide clips to be installed before counterflashing to prevent
wind uplift of counterflashing lower edge.

D. Stainless Steel Finish: ASTM A480/A480M No. 3 (coarse, polished directional satin).

2.6 MATERIALS

A. Zinc-Coated (Galvanized) Steel Sheet: ASTM A653/A653M, G90 coating designation.
B. Aluminum Sheet: ASTM B209, alloy as standard with manufacturer for finish required, with temper to suit
forming operations and performance required.
C. Stainless Steel Sheet: ASTM A240/A240M or ASTM A666, Type 304.

2.7 MISCELLANEOUS MATERIALS

A. Fasteners: Manufacturer’s recommended fasteners, suitable for application and designed to meet
performance requirements. Furnish the following unless otherwise indicated:
1. Exposed Penetrating Fasteners: Gasketed screws with hex washer heads matching color of sheet metal.
2. Fasteners for Aluminum: Series 300 stainless steel.
3. Fasteners for Stainless Steel Sheet: Series 300 stainless steel.
4. Fasteners for Zinc-Coated (Galvanized) Steel Sheet: Series 300 stainless steel.

B. Elastomeric Sealant: ASTM C920, elastomeric polyurethane polymer sealant of type, grade, class, and use
classifications required by roofing-specialty manufacturer for each application.
C. Butyl Sealant: ASTM C1311, single-component, solvent-release butyl rubber sealant; polyisobutylene
plasticized; heavy bodied for hooked-type joints with limited movement.

2.8 FINISHES

A. Comply with NAAMM’s “Metal Finishes Manual for Architectural and Metal Products” for recommendations for
applying and designating finishes.
B. Protect mechanical and painted finishes on exposed surfaces from damage by applying a strippable,
temporary protective covering before shipping.
C. Appearance of Finished Work: Noticeable variations in same piece are unacceptable. Variations in
appearance of adjoining components are acceptable if they are within the range of approved Samples and
are assembled or installed to minimize contrast.
D. Coil-Coated Aluminum Sheet Finishes:
1. High-Performance Organic Finish: Prepare, pretreat, and apply coating to exposed metal surfaces to
comply with coating and resin manufacturers’ written instructions.
a. Two-Coat Fluoropolymer: AAMA 2605. Fluoropolymer finish containing not less than 70 percent
polyvinylidene fluoride (PVDF) resin by weight in color coat. Prepare, pretreat, and apply coating to exposed
metal surfaces to comply with coating and resin manufacturers’ written instructions.
b. Concealed Surface Finish: Apply pretreatment and manufacturer’s standard acrylic or polyester backer
finish consisting of prime coat and wash coat with a minimum total dry film thickness of 0.5 mil.

PART 3 – EXECUTION

3.1 EXAMINATION

A. Examine substrates, areas, and conditions, with Installer present, to verify actual locations, dimensions, and
other conditions affecting performance of the Work.
B. Examine walls, roof edges, and parapets for suitable conditions for roof specialties.
C. Verify that substrate is sound, dry, smooth, clean, sloped for drainage where applicable, and securely
anchored.
D. Proceed with installation only after unsatisfactory conditions have been corrected.

3.2 INSTALLATION, GENERAL

A. Install roof specialties in accordance with manufacturer’s written instructions. Anchor roof specialties
securely in place, with provisions for thermal and structural movement. Use fasteners, solder, protective
coatings, separators, underlayments, sealants, and other miscellaneous items as required to complete
roof-specialty systems.
1. Install roof specialties level, plumb, true to line and elevation; with limited oil- canning and without
warping, jogs in alignment, buckling, or tool marks
2. Provide uniform, neat seams with minimum exposure of solder and sealant.
3. Install roof specialties to fit substrates and to result in weathertight performance. Verify shapes and
dimensions of surfaces to be covered before manufacture.
4. Torch cutting of roof specialties is not permitted.
5. Do not use graphite pencils to mark metal surfaces.

B. Metal Protection: Protect metals against galvanic action by separating dissimilar metals from contact with
each other or with corrosive substrates by painting contact surfaces with bituminous coating or by other
permanent separation as recommended by manufacturer.
1. Coat concealed side of uncoated aluminum and stainless steel roof specialties with bituminous
coating where in contact with wood, ferrous metal, or cementitious construction.
2. Bed flanges in thick coat of asphalt roofing cement where required by manufacturers of roof
specialties for waterproof performance.
C. Expansion Provisions: Allow for thermal expansion of exposed roof specialties.
1. Space movement joints at a maximum of 12 feet with no joints within 18 inches of corners or
intersections unless otherwise indicated on Drawings.
2. When ambient temperature at time of installation is between 40 and 70 deg F, set joint members for
50 percent movement each way. Adjust setting proportionately for installation at higher ambient
temperatures.
D. Fastener Sizes: Use fasteners of sizes that penetrate wood blocking or sheathing not less than 1-1/4 inches
for nails and not less than 3/4 inch for wood screws.
E. Seal concealed joints with butyl sealant as required by roofing-specialty manufacturer.
F. Seal joints as required for weathertight construction. Place sealant to be completely concealed in joint. Do
not install sealants at temperatures below 40 deg F.

3.3 INSTALLATION OF COPINGS
A. Install cleats, anchor plates, and other anchoring and attachment accessories and devices with concealed
fasteners.
B. Anchor copings with manufacturer’s required devices, fasteners, and fastener spacing to meet
performance requirements.
1. Interlock face and back leg drip edges of snap-on coping cap into cleated anchor plates anchored
to substrate at 24-inch centers.

3.4 INSTALLATION OF ROOF-EDGE SPECIALTIES

A. Install cleats, cants, and other anchoring and attachment accessories and devices with concealed
fasteners.
B. Anchor roof edgings with manufacturer’s required devices, fasteners, and fastener spacing to meet
performance requirements.

3.5 INSTALLATION OF REGLETS AND COUNTERFLASHINGS

A. Coordinate installation of reglets and counterflashings with installation of base flashings.
B. Embedded Reglets: See Section 04 20 00 “Unit Masonry” for installation of reglets.
C. Surface-Mounted Reglets: Install reglets to receive flashings where flashing without embedded reglets is
indicated on Drawings. Install at height so that inserted counterflashings overlap 4 inches over top edge
of base flashings.
D. Counterflashings: Insert counterflashings into reglets or other indicated receivers; ensure that
counterflashings overlap 4 inches over top edge of base flashings. Lap counterflashing joints a minimum
of 4 inches and bed with butyl sealant. Fit counterflashings tightly to base flashings.

3.6 CLEANING AND PROTECTION

A. Clean exposed metal surfaces of substances that interfere with uniform oxidation and weathering.
B. Clean and neutralize flux materials. Clean off excess solder and sealants.
C. Remove temporary protective coverings and strippable films as roof specialties are installed.
On completion of installation, clean finished surfaces, including removing unused fasteners, metal filings,
pop rivet stems, and pieces of flashing. Maintain roof specialties in a clean condition during construction.
D. Replace roof specialties that have been damaged or that repaired by finish touchup or similar minor repair
procedures. cannot be successfully