HomeMy WebLinkAboutINSTALLATION GUIDE SHINGLESINSTALLATION GUIDE
Installation with Battens and Direct-to-Deck
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Shingle Plus
04/20 | DECRA.com 1Installation Guide - DECRA Shingle Plus
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . .2
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Estimating Sheets . . . . . . . . . . . . . . . . . . . . .2
Codes & Requirements . . . . . . . . . . . . . . . . .3
Roof Slope . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Underlayment . . . . . . . . . . . . . . . . . . . . . . . .3
Roof Deck Preparation . . . . . . . . . . . . . . . . .3
New Construction . . . . . . . . . . . . . . . . . . . . . . . . .3
Roof Tear-off (Solid Deck) . . . . . . . . . . . . . . . . . .3
Re-Roof Tear-off (Skip / Spaced Sheathing) . . . . .3
Re-Roof Over Even Surfaces
(i .e . Asphalt Shingles) . . . . . . . . . . . . . . . . . . . . .3
Re-Roof Over Irregular Surfaces
(i .e . Wood Shake / Shingles) . . . . . . . . . . . . . . . . .3
Measuring, Cutting, Bending Panels . . . . . .3
Installation with Battens
Roof Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
DECRA Shingle Plus with Battens . . . . . . . . . . 5
Prep for Panel Installation with Battens . . . . . . .6
Counter Battens and Battens . . . . . . . . . . . . . . .6
Steel Hat Sections . . . . . . . . . . . . . . . . . . . . . . .6
Fascia Metal Flashing . . . . . . . . . . . . . . . . . . . . .6
Panel Layout with Battens . . . . . . . . . . . . . . . . . .7
Fastening Panels with Battens . . . . . . . . . . . . . . .7
Valley Applications with Battens . . . . . . . . . . . . .8
Open Valley . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Closed Valley . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Rake / Gable with Battens . . . . . . . . . . . . . . . . . .9
Direct-to-Deck Installation (without Battens)
Roof Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
DECRA Shingle Plus without Battens . . . . . . . 11
Prep for Panel Installation without Battens . . .12
Fascia Metal Flashing . . . . . . . . . . . . . . . . . . . .12
Roof Jacks without Battens . . . . . . . . . . . . . . . .12
Panel Layout without Battens . . . . . . . . . . . . . .12
Panel Layout with Battens . . . . . . . . . . . . . . . . .12
Fastening Panels without Battens . . . . . . . . . . .13
Valley Application without Battens . . . . . . . . . .13
XD® Valley . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Rake / Gable without Battens . . . . . . . . . . . . . . .14
Penetrations . . . . . . . . . . . . . . . . . . . . . . . .15
Roof-to-Wall . . . . . . . . . . . . . . . . . . . . . . . .16
Roof-to-Side Wall with J Channel . . . . . . . . . . .16
Roof-to-Side Wall with Side Flashing . . . . . . . .17
Chimneys . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Short Courses . . . . . . . . . . . . . . . . . . . . . . .18
Hip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Ridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Hip & Ridge . . . . . . . . . . . . . . . . . . . . . . . . .19
Ridge Venting Options . . . . . . . . . . . . . . . .19
High Wind . . . . . . . . . . . . . . . . . . . . . . . . . .20
Freeze/Thaw . . . . . . . . . . . . . . . . . . . . . . . .20
Foot Traffic . . . . . . . . . . . . . . . . . . . . . . . . . .20
Sealants . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Cleaning and Repairs . . . . . . . . . . . . . . . . .20
Table of Contents
DECRA.com | 04/202Installation Guide - DECRA Shingle Plus
Ridge Bender
Base Bender
Bender
Shingle Plus Batten Spacerat 14-1/2”
Introduction
The instructions and drawings included in this guide are intended only as a reference to install DECRA
Roofing Systems’ Shingle Plus profile. The materials and methods specified help maintain the overall
integrity of the roof system. These instructions are not intended to address all aspects of roofing installation,
as a quality installation is ultimately dependent upon the workmanship of the roofing contractor. Information
regarding alternative situations not covered in these instructions can be obtained by contacting DECRA
Roofing Systems.
Safety
Adhere to recommended safe roofing practices. Wear appropriate clothing and use safety equipment, such as
fall protection and protective eyewear. Light, soft-soled shoes are recommended. Use proper tools and keep
the roof clear of debris as you work.
Tools
DECRA Shingle Plus panels may be cut using a cutter / guillotine, tin or aviation snips, or a circular
saw using a metal-cutting blade. A portable brake (combined bender) or hand bender is recommended to
bend Shingle Plus panels for hips, ridges, rakes and valleys. Safety equipment should be worn during the
installation process.
Estimating Sheets
The DECRA Shingle Plus – with Battens Estimating Sheet and the DECRA Shingle Plus – Direct-to-Deck
(without Battens) Estimating Sheet are both available at DECRA.com.
Cutter/Guillotine
Cordless Drill Circular Saw Aviation or
Tin Snips
Hand Bender
04/20 | DECRA.com 3Installation Guide - DECRA Shingle Plus
Codes & Requirements
Refer to local building codes and/or ICC Evaluation Service reports. A link to the DECRA ICC-ES Report
ESR-2901 that covers DECRA Shingle Plus is available at DECRA.com.
Roof Slope
Roof slopes of less than 3:12 are considered decorative, and panels must be applied over a roof system
complying with local codes.
Underlayment
It is required that one layer of underlayment be used before applying the DECRA Shingle Plus panels to a
roof deck or on battens attached to the roof deck in new construction or if the existing roofing material is
removed. If the panels are installed on battens over another roofing material, additional underlayment is not
required unless specified by local code. One layer of underlayment is required before installing all DECRA
products in both new construction and reroofing applications. Underlayment should be placed between the
roof deck and the counter battens or battens. Underlayment shall comply with ASTM D 226, Type I or Type
II, ASTM D 4869, Type I or Type II or ASTM D 1970. Check local code requirements as ice and water
shield and additional requirements may apply.
Deck Preparation
New Construction: Prepare the roof deck to meet local building codes.
Roof Tear-off (Solid Deck): If tearing off an old roof, clean and prepare the roof deck to meet local
building codes.
Re-Roof Tear-off (Skip/Spaced Sheathing): There are two options available when skip / spaced
sheathing is encountered. Use counter-battens and battens without filling, or fill as necessary and install just
battens.
Re-Roof over Even Surfaces (e.g. Asphalt Shingles): Prepare the asphalt shingles by cutting them
back, flush with the fascia or rake, as needed. Remove existing overhang back as needed to install battens
and accommodate flashings.
Re-Roof over Irregular Surfaces (e.g. Wood Shake / Shingles): When needed, install counter-battens
to obtain a level surface for battens when installing over an irregular surface. Additionally, some codes require
a specified underlayment when roofing over wood shake / shingles. Prepare the roof deck by removing all
existing Hip & Ridge. Cut the existing overhang back as needed to install battens and accommodate flashings
Measuring, Cutting, Bending Panels
Measurements are made on the roof – however, the panels are normally marked, cut and bent on the ground.
Panels may be cut with a guillotine, tin snips or circular saw with a metal cutting blade. A portable brake
press or hand bender is used to bend the cut edge of the panel for hips, ridges, rakes and valleys.
If you are installing the Shingle Plus roof system with battens, please continue on this page . If you are
installing the Shingle Plus roof system direct-to-deck without battens, continue on to page 10 of this guide .
Do not use LEAD or COPPER with this steel roofing system. Do not use PRESSURE
TREATED LUMBER in contact with roof system panels or accessories.
DECRA.com | 04/204Installation Guide - DECRA Shingle Plus
Factory Edge
Factory Edge
Back Flange
Overlap
Channel
Nose
Installed Exposure:14-1/2” x 50”
Panels per Square:20
Installed Weight:150 lbs./sq.
Installation with Battens
This section is specific to the Shingle Plus roof system installed with battens. (For Shingle Plus installation
direct to the roof deck, go to page 10.)
Panels: The DECRA Shingle Plus panel is formed from corrosion-resistant aluminum-zinc alloy coated
steel with a ceramic-coated stone granules protective coating that provides an attractive appearance. The
Shingle Plus Hip & Ridge used at the ridge, rake/gable and hip is produced in a similar manner.
04/20 | DECRA.com 5Installation Guide - DECRA Shingle Plus
DECRA Shingle Plus (Installed on Battens)
Shingle Plus Hip & Ridge
Shingle Plus Underpan
Shingle Plus
End Cap
“W” Style Valley
Side Flashing
3.5” or 5” Fascia Metal
DECRA Shingle Plus Panel
DECRA Shingle Plus Panel Vent
DECRA Ridge Vent
DECRA panel vents should be installed
on the last full course below the ridge,
and no more than 4 feet down from
the peak of the roof facet. Panel vents
should NOT be used for air intake.
DECRA.com | 04/206Installation Guide - DECRA Shingle Plus
Starter Batten (2 x 2)
Starter Batten (2 x 2)
Counter-Battens and Battens: Use counter-battens when installing
Shingle Plus panels over an irregular surface or skip / spaced sheathing
(see diagram 2). Position 1 x 4 counter-battens over the framing members
(or no more than 24” on center) and secure using a minimum of 16d
common nail or equivalent into rafters or through sheathing 6” on center.
Proceed with batten installation as described above.
BATTEN SPACING DECRA PANEL
14-1/2” DECRA Shingle Plus
NOTE: BATTEN SPACING IS MEASURED FROM
FRONT OF BATTEN TO FRONT OF NEXT BATTEN
AS YOU GO UP THE ROOF. SEE DIAGRAMS BELOW.
Starter Batten should be
parallel with the ridge.
Adjust placement
of first batten to
accommodate
uneven fascia.
Use tape measure to check batten
spacing accuracy every few rows.
Preparation for Panel Installation with Battens: Set the top front
edge of the first batten flush at the edge of the fascia board, parallel with
the ridge. Install 2 x 2 nominal size battens in standard grade lumber
using a 16d minimum common nail or equivalent at a maximum of 24” on
center into rafters (see diagram 1). Install 2 x 2’s at hips. Batten spacing
for Shingle Plus installation is 14-1/2”. Please note: Batten spacing is
measured from the front of batten to front of next batten as you go up the
roof – refer to diagram drawings.
Steel Hat Sections: As an alternative to wood
battens, steel hat section purlins can be used. Different
configurations of lighter and heavier gauge purlins can
be used for various rafter spans. Fasten steel hat section
through to rafters using minimum #8 by 1-1/2” long
corrosion-resistant screws.
Note: Additional fasteners are required for battens in high wind areas
per local code. Reference wind chart detail on DECRA.com.
Batten Spacerw/ Battens
Batten Spacer
w/ Counter
Battens & Battens
Diagram 1
Diagram 2
20 gauge
thick batten
suitable for rafters
up to 4’ on center.
Fascia Metal Flashing: Flashing is required along the
fascia to cover the build-up at the first batten. Stone coated
Fascia Metal is available in 3.5” and 5” exposures in all
Shingle Plus panel colors.
1-1/2”
1-1/2”
#8 x 2” long screw
3/4”
04/20 | DECRA.com 7Installation Guide - DECRA Shingle Plus
Fastener Positions *
Panel Layout with Battens: Lay full Shingle Plus panels starting with
the first full course down from the ridge. Fasten the first course along the
panel back flange. Start laying the panels by tucking them under the upper
panels. DECRA Shingle Plus panels should be staggered to create an
irregular appearance. The Shingle Plus panels must be laid right to left.
The overlapping panel must cover the overlap channel. Begin fastening
through the nose of the panel, working down the roof. See Fastening
Panels with Battens (below).
Fastening Panels with Battens: Panels are fastened to wood battens
using at least four, minimum #8 hex head corrosion resistant 1-1/2” long
screws (color coordinated heads for fasteners into panel nose).
One fastener is placed near the bottom on the downturn of the panel, 1” from the overlapped edge. The
remaining fasteners are evenly spaced across the panel.
Care must be taken while fastening to avoid striking the finished panel surfaces. Damaged surfaces can be
refinished by using a DECRA Touch-Up Kit matching the panel color being installed. Apply the enclosed roof
sealant to the affected area, followed by embedding it with matching color stone granules.
DO NOT rack panels (DO
NOT line them vertically up
the roof), or use even panel
offsets that will detract from
the appearance of the roof.
DO NOT make a pattern.
Apply downward pressure to “seat” the Shingle Plus panel when fastening.
* Install fasteners to ensure they penetrate the battens
parallel to the roof deck using screws with color-matching
heads for exposed applications to the panel nose.
Left Overlapping Panel Right Panel
2” Minimum
Complete 2 rib keyway must
be covered by overlapping panel.
Fasten nose prior to back
flange. Apply downward
pressure to “seat” panel
when fastening.
DECRA.com | 04/208Installation Guide - DECRA Shingle Plus
Bend Line Cut Line
Make sure the ends of the valley
metal extend beyond the fascia or
onto a lower roof area.
Verify batten spacing along the
valley to ensure accuracy.
Tu rn Down 3/4” to 1”
Make sure the ends of the valley metal
extend beyond the fascia or onto a lower
roof area to ensure proper drainage.
Valley Application with Battens: All valley metal should be minimum 26 gauge pre-finished
aluminum-zinc alloy coated steel. Valley metal should be a minimum 7” wide. XD® Valley may be used
as an option.
In new construction, the metal valley flashing must have one layer of Type 30 felt underlayment, 36” wide –
or, ice and water shield underneath as required by local building code.
Install the valley metal, overlapping the valley pieces
a minimum of 6”. Secure the valley metal in locations
that won’t channel water.
After valley flashing has been fit and secured into
the valley area and full panels have been positioned up to the valley, measure for cut panels. See Open
and Closed Valley Sections (below). Panels are cut and bent down into valleys leaving either an open or
completely covered (closed) valley. If using XD® Valley, measure and cut panels so they fit tight to center of
XD® Valley metal. Finish with XD® Valley Cap.
All measurements need to be taken from the center of
the panel Overlap Channel. Refer to diagram in the
Panel Section (page 4).
See diagrams in Open and Closed Valley Sections (below and next page). Cuts are denoted with dashed
lines and bends are denoted with solid lines.
Open Valley: To create an open valley, snap lines
to desired opening. Working on one side of the valley
at a time, measure, cut and bend panels starting at the
bottom of the valley and working up. Bend the cut edge
of panels down against the up-stand of the valley metal
as indicated in the drawing.
For fast accurate hip and valley angle
measurements, use a T-bevel, which can be
purchased at your local hardware store.
04/20 | DECRA.com 9Installation Guide - DECRA Shingle Plus
Rake / Gable with Battens: When installing Shingle Plus panels along the rake / gable and finishing it
with Hip & Ridge, run a 2 x 2 vertically along the rake. Position the 2 x 2 vertically just back from the edge
of the rake to accommodate the proper look and fit of the Hip & Ridge pieces. In a batten installation the
2 x 2 will sit on top of the battens. Bring the panel up to the 2 x 2 and bend the panel up 1-1/2”. At the fascia,
cover the open end of the Hip & Ridge with the appropriate End Cap. See Hip & Ridge section (page 19).
Please continue to page 15 of the guide to complete the installation of the batten system.
Fascia
Closed Valley:
Find and establish the center of the valley by either
snapping a line or following the existing center rib.
After valley flashing has been fit and secured into
the valley area, start on one side of the valley by
measuring, cutting, bending and installing panels as
accurately as possible to create a clean straight line.
Next – measure, cut and bend panels to fill
in the other side of the valley. Make sure
these panels meet the opposing side of the
valley. The panels from the two sides of the
valley should fit as closely as possible, and
the line between them should run straight up
the valley.
Notch the nose of panels
terminating in a closed valley to
accommodate the width of the valley.
DECRA.com | 04/2010Installation Guide - DECRA Shingle Plus
Factory Edge
Factory Edge
Back Flange
Overlap
Channel
Nose
Installed Exposure:14-1/2” x 50”
Panels per Square:20
Installed Weight:125 lbs./sq.
Direct-to-Deck Installation without Battens
This section is specific to Shingle Plus roof systems installed directly to the roof deck without battens.
Please refer to page 4 of this guide for information on installation with battens.
Panels
The DECRA Shingle Plus panel is formed from corrosion-resistant aluminum-zinc alloy coated steel with
a ceramic-coated stone granules protective coating that provides an attractive appearance. The Shingle Plus
Hip & Ridge used at the ridge, rake/gable and hip is produced in a similar manner.
04/20 | DECRA.com 11Installation Guide - DECRA Shingle Plus
Shingle Plus Hip & Ridge
Shingle Plus Underpan
Shingle Plus
End Cap
DECRA Shingle Plus (Installed Direct-to-Deck)
XD® Valley & Cap
Side Flashing
3.5” or 5” Fascia Metal
XD® Rake/Gable
Channel
DECRA Shingle Plus Panel
DECRA Shingle Plus Panel Vent
DECRA Ridge Vent
DECRA panel vents should be installed
on the last full course below the ridge,
and no more than 4 feet down from
the peak of the roof facet. Panel vents
should NOT be used for air intake.
DECRA.com | 04/2012Installation Guide - DECRA Shingle Plus
Preparation for Panel Installation without Battens
Over a prepared deck, position a 1 x 4 flush with fascia as a starter batten. Install
necessary 2 x 2 battens for hips, ridges and rakes using a 16d common nail or
equivalent, at a maximum of 24” on center.
1 x 4
2 x 2
Starter batten should be installed parallel with the ridge.
Adjust placement of first batten
to accommodate uneven fascia.
Roof Jacks without Battens: In cases where roof jacks will be
installed, apply a 1 x 4 to the bottom of the roof jack (see diagram).
Fasten the front (nose) of the panel when the jack is removed.
Panel Layout without Battens: Panels will be laid out and
fastened as you go along, starting at the fascia and working up
the ridge. Shingle Plus panels must be laid right to left. The
overlapping panel must cover the overlap channel. See Fastening
Panels without Battens (page 13).
BEGIN FASTENING PANELS AS YOU GO. REFER TO FASTENING SECTION (PAGE 13).
Fascia Metal Flashing: Flashing is required
along the fascia to cover the build-up at the
first batten. Stone coated Fascia Metal is
available in 3.5” and 5” exposures that match
the Shingle Plus panel color (3.5” is typical
with direct-to-deck application.
DO NOT rack panels (DO NOT line them vertically up the roof), or use even panel offsets
that will detract from the appearance of the roof. DO NOT make a pattern.
04/20 | DECRA.com 13Installation Guide - DECRA Shingle Plus
Fastener Position s
Fastener Position s
Left Overlapping Panel Right Panel
2” Minimum
Complete 2 rib keyway must
be covered by overlapping panel.
Fastening Panels without Battens: Shingle Plus panels are fastened using at least eight, minimum
#8 corrosion resistant hex head, 1-1/2” long screws (color coordinated hex heads where exposed on the
panel nose). Position four screws through the nose of the panel, at an angle, so as to penetrate the back of
the panel below and into the roof deck. Next, apply fours screws vertically through the back flange of the
panel into the roof deck, as illustrated in the diagram. Fasten the nose of the first panel through the 1 x 4
batten and the back flange as shown. All other panels will be fastened as shown below.
Fasten nose prior to back
flange. Apply downward
pressure to “seat” panel
when fastening.
For fast and accurate hip and valley
angle measurements, use a T-bevel,
available at a local hardware store.
Standard Valley Application without Batten: All valley metal should be minimum 26 gauge pre-finished
aluminum-zinc alloy coated steel. Valley metal should be a minimum of 8” wide to each side of the centerline.
In new construction, the metal valley flashing must have one layer of Type 30 felt underlayment, 36” wide – or,
apply ice and water shield underneath as required by local code. Install the valley metal overlapping the valley
pieces a minimum of 6”. Secure the valley metal to the deck every 12”. Make sure the ends of the valley metal
extend beyond the fascia or onto a lower roof area to ensure proper drainage.
After valley flashing has been fit and secured into the valley area, and full panels have been positioned up to
the valley, measure for cut panels. See diagrams in the Shingle Plus Valley Section (page 14). Panels are cut
and tucked into valleys leaving a completely covered (closed) valley.
All measurements need to be taken from the center of the panel overlap. Refer to diagrams in the Panel
Section (page 10).
DECRA.com | 04/2014Installation Guide - DECRA Shingle Plus
XD® Valley without Battens: DECRA XD® Valley
piece is used here to create the clean look of a closed
valley. First, install the XD® Valley piece along
the center line of each valley. Fasteners should be
positioned outside the last turn-up on each side of the
valley piece. Cut Shingle Plus panels to length and fit
them into the valley (see diagrams right). The Shingle
Plus panels must be laid right to left. When working
into a valley, measure and cut panels to fit tight into
the valley. When working out of a valley, cut random
length panels (with a “factory” left edge) to fill in
along the valley. Continue with full panels as you
work horizontally away from the valley.
Rake / Gable without Battens: When installing Shingle Plus panels along the rake / gable and finish it
with Hip & Ridge, run a 2 x 2 vertically along the rake. Position the 2 x 2 vertically just back from the edge
of the rake to accommodate the proper look and fit of the Hip & Ridge pieces. Bring the panel up to the
2 x 2 and bend the panel up 1-1/2”. At the fascia, cover the open end of the Hip & Ridge with the End Cap
piece. See Hip & Ridge section (page 19).
DECRA XD® Rake / Gable Channel may be used in place of the 2 x 2 and the Shingle Plus Hip & Ridge,
when installing the panels without battens.
Shingle Plus Panel
XD® Va lley Cap
XD® Va lley
Cut line to match valley angle
XD® Rake/Gable Channel
Shingle Plus Panel
Underlayment
Plywood Decking
Fascia Board Drip Edge
2”
XD® Rake/Gable Channel
Shingle Plus Panel
Underlayment
Plywood Decking
Fascia Board Drip Edge
2”
04/20 | DECRA.com 15Installation Guide - DECRA Shingle Plus
Penetrations
Roof penetrations are to be flashed with aluminum, galvanized, or aluminum-zinc alloy coated steel stan-
dard roof jacks and flashings as required by code. DO NOT USE COPPER OR LEAD WITH THIS
ROOFING SYSTEM. Use the correct Underpan for Shingle Plus to properly flash pipe penetrations. Cut
the Underpan to fit tightly around the plumbing stack. The Underpan must lap over the lower field panel
when positioned around the pipe. Cut the pipe-flashing apron so it will fit onto the Underpan. Apply
roofing-grade sealant on three sides (both sides and top portion). Finish with field panel by measuring and
cutting panel to fit snugly around the pipe flashing. Cut hole according to the flashing profile. Align roof
panel and seal around the opening using a roofing grade sealant – finish with the Touch-Up Kit granules
embedded in the sealant.
Care should be taken to adequately weatherproof the flashings and to support them with additional blocking
or roof framing as necessary.
Paint pipes and flashings prior to
installing panels if desired.
The following information applies to installations both
with battens and direct-to-deck without battens.
DECRA.com | 04/2016Installation Guide - DECRA Shingle Plus
Roong Grade Sealant/Adhesive
Side Flashing
J Channel
2 x 2
Roof-to-Wall
Roof to Side Wall w/ J Channel (Tile Pan) for Batten and Counter-batten Installation: Slide
J Channel under existing sidewall flashing. Turn panel down into J Channel (Tile Pan). If you cannot get
the J Channel up under the existing flashing, slide the J Channel up under the existing siding.
Penetrations (cont.)
For larger flashings,
an Underpan may
not be required.
Roll the vertical edges
of flashing to properly
channel water.
04/20 | DECRA.com 17Installation Guide - DECRA Shingle Plus
Roong Grade Sealant/Adhesive
Side Flashing
Underlayment to Top of Flashing Minimum
Roof to Side Wall w/ Side Flashing: If no
existing flashing is present (with or without battens),
turn the panel up 2” and counter-flash with Side
Flashing. Seal turn-up against the wall and seal
Side Flashing before applying to wall with a
roofing grade sealant.
Add 2” to all measurements
to accommodate bend up.
Chimneys
The following steps detail the procedure for
installation around a chimney (with or without
battens). Run full panels up to the chimney as noted
in the chimney illustration. All the open areas will
be filled in with cut panels that have been bent up
2” toward the chimney.
Start by measuring from the full panel
below the chimney up to the base of the
chimney. Cut panel(s) to fit this area.
Add 2” to all of the measurements to
accommodate for the 2” bend up.
Panels to fit the left and right sides of
the chimney will be measured and cut
the same way.
Finally, measure the width of the
chimney – cut, conform and install the
chimney saddle to fit above the chimney.
For brick and stucco, counter-flash over
the top of the chimney saddle. For
siding, tuck the chimney saddle up
under the siding. For proper drainage,
chimney saddle must drain.
Roong Grade
Sealant/Adhesive
Roong Grade Sealant/Adhesive
Side Flashing
Chimney Saddle conform to t
DECRA Roong Panel
Underlayment to top
of ashing minimum
Underlayment to top
of ashing minimum
Underlayment
Side Flashing
Roong Grade
Sealant/Adhesive
Roong Grad e
Sealant/Adhesive
Optional blockingfor support
1
2
34
1
2 3
4
DECRA.com | 04/2018Installation Guide - DECRA Shingle Plus
3/4” turn down
Short Course
In some instances, a short course will be necessary.
A short course is needed when a section of the
fascia steps out and is not an even panel width
difference from the main fascia. Start battening
at the fascia with the longest width (or if installing
without battens start laying panels), and work up
to the course above or down to the course below
the stepped fascia. Next, measure the first course
of the stepped section and treat it like a ridge.
Finish the short course by measuring the panel
from the back and cutting the excess from
the front of the panel. Be sure to allow for a
3/4” turn-down at the fascia.
Hip
When installing Shingle Plus, run a 2 x 2 vertically up the hip.
In direct-to-deck installations (without battens) the 2 x 2 will
rest directly on the decking. In batten installations, the 2 x 2
will rest on top of the battens. Bring the panel to the 2 x 2 and
turn the panel up 1-1/2”. Measurements for hip cuts are made
much like the valley cuts.Bend Line Cut Line
Measuring Points
Optional Blocking
Bend full panels
before cutting.
Ridge
Measure from the front of the back flange of the last full course
to the front of the 2 x 2 at the ridge (see diagram right). This will
be the bend line. Bend the panel at the bend line. Add 2” to the
bend line and cut the panel (see Cutting and Bending diagram
below). Install the panels along the ridge and fasten. Next, install
the panels along the other side of the ridge. Keep panels straight
and level along the ridge as this is the foundation for the Hip &
Ridge pieces.
Cut Line
Bend up 2”
Bend Line
Cutting & Bending Ridge Panels
04/20 | DECRA.com 19Installation Guide - DECRA Shingle Plus
Hip & Ridge
Once panels are in place, install Hip & Ridge cap pieces along hips, ridges and rakes. For Shingle Plus
roofing systems applied direct-to-deck, you may elect to use XD® Rake/Gable channel in place of using Hip
& Ridge pieces to trim out rake edges.
Hip & Ridge pieces are overlapped and fastened in 2x2’s on both sides along the ridges, rakes / gables and
hip boards with the same color-matched hex head screw fasteners used for securing the panels on the ex-
posed bottom nose edge. Bend and fold exposed ends of Hips & Ridges neatly and finish with an End Cap.
At the Hip & Ridge transition, miter into place. Apply roofing grade sealant to joints and finish with the
Touch-Up Kit granules embedded into the sealant.
Fasteners on both sides of Hip & Ridge
Shingle Plus Hip & Ridge End Cap
2
3
1
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1
3
Shingle Plus Hip & Ridge
Ridge Venting Options
Ridge Venting – No Center Beam: Install Shingle Plus panels up to the last full course (before the
ridge) to the edge of the opening that has been cut for the ridge vent. Install 2 x 2 wood battens along the
ridge. Align the top edge of the 2 x 2 along the edge of the plywood on both sides of the ridge attic opening.
Measure, cut, bend, and install the final course of panels to allow for a 1-1/2” bend. Roll out the vent
material along the tops of the battens.
Remove the white paper while
unrolling to expose the adhesive dots.
Apply pressure over the adhesive dots
to hold the material in place during
installation (see diagram 1). Install
Shingle Plus Hip & Ridge pieces
over the vent material. Fasten the
screws through the vent material
into the battens.
DECRA Ridge Vent
Material
Shingle Plus
Panel
Shingle Plus
Hip & Ridge
2 X 2 Battens
Rafter
Plyw
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D
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Underla
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Min. #9 Hex (1/4” diameter) x 1-1/2” longcolor coordinated corrosion resistant screw
Diagram 1
DECRA.com | 04/2020Installation Guide - DECRA Shingle Plus
On slopes 7/12 and less, plan on three 2 x 2’s. On slopes greater than 7/12,
plan on two 2 x 2’s. Only applicable to roofs “With Center Beam”.
High Wind
In areas prone to hurricanes and high winds, installation must meet local standards and codes. Visit
DECRA.com /technical/wind-charts for specific details. Generally speaking, full panels on the top three
courses and bottom three courses should be fastened with 14 fasteners total per Shingle Plus panel – seven
fasteners evenly spaced along the panel nose, and seven fasteners evenly space across the panel top flange.
Also, panels along the perimeter and directly along the hips and gables must be secured with the same high
wind fastener count and placement.
Freeze/Thaw
Use ice and water shield as recommended for cold climatic conditions. Screws should be used in
freeze/thaw areas.
Foot Traffic
Avoid walking on side laps. If installing over battens, walk directly over the battens. See further walking
instructions at DECRA.com
Sealants
A high grade roofing sealant is recommended for use with this roofing system. Where possible, the sealant
should be covered by the roofing system or by embedding color-matched stone granules.
Cleaning & Repairs
After installation is complete, be sure to clean the roof of all debris – especially any metal shavings. In
cases where it is necessary to touch up or repair a panel, DECRA Touch-Up Kits are available in a color
that matches your Shingle Plus panel finish color. For answers to questions not covered in this guide, call
(877) 463-3272, or go to DECRA.com. Architectural details, product specifications and Shingle Plus
estimating sheets are available online at DECRA.com.
Ridge Venting – With Center Beam: Install Shingle Plus panels up to the last full course before ridge. You
may install 1 x 4 wood battens along both sides of the ridge to support the last course of panels. Measure, cut,
bend and install the last course of panels. Allow for a 1-1/2” bend. Stack the needed number of 2 x 2 and 1 x 2
lumber to the roof center beam to allow the attachment of the Hip & Ridge pieces. The exact number needed
depends on the roof slope and configuration. Ensure that the 2 x 2 and 1 x 2 boards provide enough height for a
3/4” to 1”clearance between the Hip & Ridge piece and top panel. Roll the vent material to the bend up on the
last course of panels while removing the
white paper to expose the adhesive
dots. Apply pressure over the
adhesive dots to hold the vent
material in place during installation.
Install the Hip & Ridge pieces,
making sure the vent material is
slightly compressed between the
bend on the last course of panels
and the Hip & Ridge pieces.
DECRA Ridge Vent
Material Shingle Plus
Panel
Shingle Plus
Hip & Ridge
2 X 2 Battens
Rafter
Min. #9 Hex (1/4” diameter) x 1-1/2” long
color coordinated corrosion resistant screw
Underla
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Rafter
Plyw
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Diagram 2
877-GO-DECRA [463-3272] | DECRA.COM