Metro DataVac Roman-Tile Installation guide

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Metro Roman Tile Installation 1
These install details are provided to demonstrate the recommended
installation method for Metro Roof products and accessories.
The details and information in this document reflect current roofing prac-
tices used in the United States. Consult with Metro Roof Products for
additional information.
INSTALLATION DETAILS
Issued January 23rd, 2005
Front
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Metro Roman Tile Installation 2
General
Metro Roman Tile panels are Installed on new or existing roofs
pitched a minimum of 2-½:12 (12 degrees). An underlayment is to
be installed as per local code and manufacturers instructions.
1”x4” or 2”x2” panel battens may be used over a solid sheathed
roof deck. For installation using 1”x4” counter battens, 2”x2” panel
battens must be used (see Counter Battens). Panel battens are
installed parallel to the ridge/fascia. The first panel batten is posi-
tioned flush with the fascia or batten build-up. The second panel
batten is positioned 13-¾” from the fascia to accommodate the
“Bird-Stop” metal.
2”x2” ridge battens or double stacked 1”x4” pcs. are used to pro-
vide approximately 1½”of build-up height for hip and ridge pcs. Hip
battens are installed directly on top of each intersecting panel bat-
ten, so that cut panels can be fitted
against the battens.
Battens are fastened to supporting framing members as per code
and Metro instructions.
Wood panel battens can be 2”x2”, 1”x3” or 1”x4”. Consult Metro
regarding approved steel purlin sections. Precise panel batten
spacing is critical because the rear of each Metro panel must fit
snuggly against the batten.
Panel Battens
Ridge Battens
14 ½” o/c panel batten spacing
is critical to allow panels to fit
properly.
13 ¾”
For the 1st course of panels, a spacing of
13 3/4” is used when Metro Roman Bird-
stop is installed at the fascia.
Space Ridge/Hip
battens 5” apart.
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Metro Roman Tile Installation 3
2”x2” Batten
1”x4” Counter Batten
Underlayment
1”x4” counter battens are placed approximately 24” o/c
directly over rafters. Fasteners must penetrate 1” into or
through the roof framing members and be placed 12” o/c.
Counter Battens
When reroofing over wood shingles or shakes, the existing
roof is cut back around the perimeter to allow a build-up
of 1”x4”, 2”x2” or a combination of both, to provide a solid
nailing foundation. Wood is built up to match the underside
of the 1”x4” counter battens placed on top of the existing
roof. Consult local codes for other specific requirements.
Drip Edge
Counter battens (1”x4”) are used when roofing over uneven
surfaces or for additional ventilation, i.e. to create a cold roof
application.
A standard “Drip-Edge” flashing is used along the eave/fas-
cia, and should be installed over the batten, as shown.
Fascia build-up for roofing
over existing roofs.
12”
24”
When counter battens are used, install 1”x4” battens
down both sides of valley flashing as shown.
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Metro Roman Tile Installation 4
Metro Tile Rake metal is installed along the rake edges as
shown. Tile Rake metal aids in positioning Metro Trim Caps,
and is placed on the wood build-up. The Metro Trim Caps
cover battens and folded up Metro panels, as shown.
Rake Metal
1”
Install 20” (508mm) Double ‘V’ Valley metal overlapping a
min. of 4” (100mm). Valleys are attached with site fabricated
clips as shown. Washer and rubber grommet screws are
acceptable at the outside locations, as shown above.
Full panels are laid from the top of the roof (1st full course
from the ridge) down to the fascia. Roman Tile panels are
laid from right to left.
Each Roman Tile panel is fastened to the battens with a
minimum or four (4) .131” dia x 2-3/8” long corrosion resistant
ring shank nails through the front down turn of the panels
as shown. #10 x 2” long 1/4” hex head corrosion resistant
screws may be used in place of nails.
Panel Layout & Fastening
Stagger Metro Roman Tile panels 1-2 “’pan” modules to
eliminate negative visual effects of continuous side-laps.
Fastening
Location
Overlap each panel
over the 2” side-lap
1
2
3
4
20” Double ‘V’ Valley
Extend valley a min of 1” past the
fascia/eave edge.
Metro panels are fastened on the right
side of each overlapped pan as shown.
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Metro Roman Tile Installation 5
Fastening First Course
Valley Panels
Cut line
Bend line
Bend panel down to fit
into valley metal
Start the 1st panel 12” (300mm) from the
valley edge. This allows for a valley cut
section to be securely fastened to the roof
deck without penetrating the valley flashing.
Measure, mark and cut panels to fit
tightly against valley center (reverse
‘V’). Fasten valley section panels to
roof decking similar to the other panels
without penetrating valley flashing.
Mark the bend line
1½” in from the cut
line.
1”
Fasten the first course of panels at the raised panel sec-
tion, through the fascia metal, and into the 1”x4” batten.
This is the only place where it is acceptable to fasten
panels through the top.
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Metro Roman Tile Installation 6
Hip Panels
Bend line Cut line
2”
Hip cuts are measured, cut and bent similarly to valleys. Each hip
panel is bent up a min. of 1½” and fastened against the hip board.
Bird-Stop Metal
The Bird-Stop riser metal creates a ¾”
off-set from the fascia. The use of this
‘Bird-Stop’ requires standard Drip-Edge
metal to be installed on a (1”X4” or
2”X2”) support batten.
Bend Line
Cut line
½” is deducted from the actual measurment when
making hip cuts.
Bird stop metal extends into valleys as
shown.
The second panel batten is
positioned 13-¾” from the fascia
to accommodate the Bird-Stop
metal.
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Metro Roman Tile Installation 7
SIDE-HEAD WALL/CHIMNEY/SKYLIGHT
The following details apply to any square cornered protrusion through a roof.
At front of chimney, measure, cut, and fold
up panel 2”. Cut panels on a 45 degree
angle as shown and fold tabs around
chimney.
On sides of chimney, cut and fold up
panels 2” as shown.
At back of chimney, seal each top corner
section. Keep panel battens away from
saddle as shown.
At back of chimney, install chimney saddle
as shown. Extend saddle a minimum of 6”
past each side of chimney. Hem ends 1” to
keep water on saddle flashing.
Install a section of Metro Roman Foam
Closure across the chimney saddle as
shown (align with Roman profile).
Cut and
flatten
2”
45
CUT
45
NO BATTEN
Roman Foam
Closure
6”
1” Hem
4.
1. 2. 3.
6”
2”
Fold flap down to
fit tight against
saddle bend
2”
Panel
Batten
Saddle
5. 6.
Always start from the bottom of the item
being flashed to ensure correct weather
protection.
Counter Flashing metal or Z-bar covers
bent up edges of panels.
Apply a bead of sealant across Foam
Closure and ‘Seat’ back cut-section panel
onto Foam Closure. Panels are fastened
through the front downturn of the panels,
the Foam Closure and saddle into deck-
ing.
Where applicable, cut and fold panels to
overlap the hand fabricated hem on the
sides of the chimney saddle.
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Metro Roman Tile Installation 8
ALTERNATE FLASHING DETAIL
Side-wall Underpan metal is covered
with counter flashing or standard Z-bar.
Panel front down-turn is flared out
to allow Underpan to exit onto panel
below.
Fold up nose of panel where
underpan metal exits on top of
panels below.
SMARTvent - Roman Tile
8”
30”
Metro Roman Tile SMARTvents are used in place of regular panels where ventilation is required. The vents are installed similar to
panels after cutting ventilation hole in decking (approximately 8” x 30”). A Metro Roman Tile SMARTvent provides approximately
82sq. inches of Net Free Vent Area (NFVA). Care should be taken to adequately ventilate the buliding.
Building codes require a minimum NFVA of 1/300 the area of the space to be ventilated (attic).
Secure SMARTvent with
screws (#10x2” HH)(50mm)
Seal back up-turn prior to
overlaying panel.
The Metro ‘Sandwhich’ method should be used if a
vent location prevents a SMARTjack 3-in-1 from be-
ing folded up and over a panels back flange,
18”
18”
SMARTjack and SMARTsleeve
Metro offers both a SMARTjack and SMARTsleeve for use
with it’s stone-coated roof panels. The Metro 3-in-1 SMART-
jack is a moldable stone-coated roof flashing and is avail-
able in a small(SMARTjack12”x16”) and large (Roman
SMARTjack18”x18”) base size. Apply sealant under 3-in-1
SMARTjacks.
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Metro Roman Tile Installation 9
Cut
Cut panel battens a min. of 6” from the protruding pipe.
Flatten the panel directly below the pipe to avoid a
hump. Cut and hem a lip around the perimeter of the
SMARTjack on the section placed above the panel bat-
ten. Install a block behind the protrusion to support the
back of the SMARTjack.
Slide the SMARTjack into place. Mold base of
SMARTjack to conform with panel.
Measure, mark, and cut Roman panels to cover back section
of SMARTjacks. Seal around flashing.
For added protection and appearance, SMARTsleeves
are cut to conform to the panels and are installed over
pipes. Sleeves are fastened with a screw through the
front of the SMARTsleeve into the SMARTjack.
SMARTjack and SMARTsleeve
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Metro Roman Tile Installation 10
Ridge Panels
The top course of panels require cut and bent panels to complete the ridge line.
Always bend the ridge panels before cut-
ting as they deform slightly and are difficult
to install. Deduct ½” from measurements
and mark both bend and cut lines for each
panel.
Bend all ridge panels using Metro’s top bender.
The following steps should be followed to ensure adequate weather protection along the ridge.
Bend Line
Cut Line
Fasten panels first at bottom right corner. Then fasten panels at bottom far left corner. Panels are then
pushed down and fastened into place.
Push back of panel into position against ridge batten before
fastening.
Additional fasteners are applied as necessary.
After bending and cutting, reshape
panels to match existing panel
courses.
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