SECTION 07 61 16 Batten Seam Copper Roofing
SECTION 07 61 16 Batten Seam Copper Roofing
SECTION 07 61 16 Batten Seam Copper Roofing
SECTION 07 61 16
BATTEN SEAM COPPER ROOFING
PART 1 - GENERAL
1.1 DESCRIPTION:
A. This section specifies the installation of batten seam copper roofing.
1.2 RELATED WORK:
//A. Sustainable Design Requirements: Section 01 81 13, SUSTAINABLE
CONSTRUCTION REQUIREMENTS. //
B. Sealant: Section 07 92 00, JOINT SEALANTS.
1.3 SUBMITTALS:
A. Submit in accordance with Section 01 33 23, SHOP DRAWINGS, PRODUCT DATA,
AND SAMPLES.
//B. Sustainable Design Submittals, as described below:
//1. Postconsumer and preconsumer recycled content as specified in PART
2 - PRODUCTS.// //
C. Fabricator’s qualifications.
D. Installer qualifications.
E. Manufacturers literature, data, for copper, underlayment, sealant and
accessories.
F. Submit shop and erection drawings containing data necessary to clearly
describe design, materials, sizes, layouts, seam configuration,
construction details, provisions for thermal movement, line of panels,
fastener sizes and spacings, sealants and installation procedures. Show
waterproof connections to adjoining work; show obstruction and
penetration details.
G. Samples consisting of 152 mm (6 inch) or 305 mm (12 inch) square
specimens of specified copper roofing material.
1.4 WIND UPLIFT LOADS:
A. Provide roof assemblies meeting uplift pressures using a basic wind
speed of // // km per hour (// // miles per hour), an importance
factor of // //, and an exposure of // //.
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2.9 UNDERLAYMENTS:
A. Felt Underlayment: No. 30 felt in compliance with ASTM D226/D226M,
Type II.
B. Self-Adhering Modified Bitumen Underlayment:
1. Self-adhering modified bitumen membrane underlayment material in
compliance with ASTM D1970/D1970M, and suitable for use as
underlayment for copper metal roofing.
2. Membrane resistant to cyclical elevated temperatures for extended
period of time is to be used in high heat service conditions.
3. Membrane is to have integral non-tacking top surface of polyethylene
film or other surface material to serve as separator between
bituminous material and copper metal products.
SPEC WRITER NOTE: Confirm vapor retarder
requirements has been shown on the
drawings when required for local climatic
conditions. A self-adhering modified
bitumen membrane underlayment can act as a
vapor barrier. Delete this paragraph if
not required.
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buckling, and tool marks, true to line and levels indicated, with
exposed edges folded back to form hems.
B. Roofing surface:
1. Clean, dry, and debris free before application.
2. Remove protrusions from the deck area.
3. Verify substrate has no voids, damaged, or unsupported areas.
4. Repair voids or unacceptable area before installing membrane.
SPEC WRITER NOTE: Most substrate
conditions require underlayment and slip
sheets. Provide either self-adhering sheet
underlayment or felt underlayment. Delete
below only upon recommendation of metal
manufacturer for specific project
condition. Review roof assembly with
underlayment types to avoid creating
double vapor barrier in the
roof/insulation assembly.
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//D. Install vapor retarder over the entire roof substrate support surface.
Use tape to seal the edges of the sheets to the support surface, or to
the sheet below. Sheet edges to be lapped not less than 152 mm (6
inches). Provide sufficient material to avoid inducing stresses in the
sheets due to stretching or binding. All tears or punctures that are
visible in the finished surface at any time during the construction
process to be sealed with the tape. //
SPEC WRITER NOTE: Slip sheets are required
for installations. Slip sheets must be
installed over vapor retarder when vapor
retarder is specified.
E. Slip Sheet:
1. Apply specified slip sheet at time of roof panel installation when
underlayment is used that may be in direct contact with and adhere to
or adversely impact the underside of roof panels, and as otherwise
recommended by the roof panel manufacturer.
2. Paper slip sheets must be installed over the underlayment. Use
adhesive for temporary anchorage, where possible, to minimize use of
mechanical fasteners under copper roofing.
3. Lap joints 50 mm (2 inch) minimum.
F. Form tapered wood batten 76 mm (3 inches) wide at top, 57 mm
(2-1/4 inches) wide at bottom and 38 mm (1-1/2 inches) high unless
otherwise indicated in construction documents. Secure battens to roof
deck construction with lag bolts or wood screws having the heads
recessed below the top of the batten. Space battens to suit width of
pans.
G. Fabricate:
1. Fabricate pans to create center to center standing and batten seam
spacing as indicated on construction documents.
2. Lay sheets of copper formed into pans with sides turned up to top of
batten and out 13 mm (1/2-inch) for locking to cover.
3. Form cross seams by forming folds on upper and lower ends.
4. Stagger cross seams. Slit cross seam at each corner to form a tab.
G. Form cleats of 50 mm (2-inch) wide 450 g (16 ounce) copper. Place cleats
at center of each cross seam and along battens at 305 mm (12 inches) on
center.
H. Eaves and Rakes:
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1. At eaves and rakes which do not abut vertical surfaces, turn roofing
sheets over edge of roof sheathing and hook 19 mm (3/4-inch) over a
560 g (20 ounce) cold rolled copper edge strip.
2. Form edge strip from 2438 to 3048 mm (8 to 10 foot) long pieces with
ends butted together.
3. Secure edge strip to roof deck with nails 101 mm (4 inches) on
center.
4. Do not face nail roofing.
I. Cover batten with copper. Lock edges together with flanges of pans and
mallet down against side of battens.
J. Ridges and Hips: Provide copper covered battens similar to roof battens.
K. Cover exposed ends of battens with copper caps locked in place.
3.2 JOINING:
A. Solder seams where required to produce water tight joints. Remove flux
after soldering is completed.
B. Tin edges of copper required to be soldered with solder for a width of
38 mm (1-1/2 inches).
C. Joints in copper up to 560 g (20 ounce) weight may be soldered.
D. Make joints for copper over 560 g (20 ounces) weight by lapping,
riveting, and soldering. Space rivets 76 mm (3 inches) on center in two
(2) rows in a staggered position.
3.3 SEALING:
A. Where dowels, fastening devices and similar items penetrate roofing,
make penetrations watertight by means of sealing compound. Sealing
compound is specified in Section 07 92 00, JOINT SEALANTS.
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