Instructions / Assembly
2
Even though ONDUVILLA® is easy to install, it is important to read
through these instrucons to understand how they apply to your roof.
ONDUVILLA®, like all roong materials, should be carefully installed.
Take your me and closely follow these installaon guidelines. If you
require addional assistance, please feel free to call our support team at
800.777.7663 and one of our associates will be happy to help.
INSTALLATION INSTRUCTIONS
Warranty protecon is only applicable when ONDUVILLA® shingles have been installed using ONDUVILLA®
specic installaon guidelines.
GENERAL INSTRUCTIONS: This guide
addresses basic roong pracce and
commonly occurring roof details for
the installaon of ONDUVILLA®. For
addional informaon and details
please call 800.777.7663 to speak with
a representave or refer to the website,
onduvilla-usa.com.
Consult state and local code requirements
prior to installaon. Follow all OSHA and
governmental safety requirements during
installaon.
ROOF DECKS: Use minimum 3/8” (10mm)
plywood or OSB decking as recommended
by APA-The Engineered Wood Assn.
(Refer to local code on framing and
sheathing minimum requirements).
SLOPE: 2:12 minimum. For 2:12 up to
4:12, a double layer of underlayment
is required. For 4:12 or greater, a single
layer is required.
UNDERLAYMENT (LEAK BARRIER): Install
ice and water leak barrier at the eaves
in localies where leaks may be caused
by water backing up behind ice or debris
dams. Consult state and local code for
minimum requirements.
UNDERLAYMENT (ROOF DECK PROTEC-
TION): Underlayment is primarily used
to separate a roof covering from the roof
deck, shed water, and provide secondary
weather protecon for the roof area
of the building. Install a minimum of
one layer of ASTM D226, Type I No. 15
asphalt-saturated felt applied horizontally
in shingle fashion integrated with ice and
water leak barrier as required by code.
Refer to manufacturer’s installaon
guidelines and fastening requirements.
Synthec underlayment can be
substuted for No. 15 asphalt-saturated
felt. Consult manufacturer for suitability
and installaon requirements.
FASTENERS: Use only ONDUVILLA®
approved fasteners to aach shingles
and accessories. Over driving fasteners
will damage the shingle as well as create
alignment issues of corrugaons. Raised
fasteners will interfere with the sealing
of the shingle. Unless otherwise noted,
shingle fasteners should be placed at
apex of each corrugaon and centered
between the two overlapping guides.
VENTILATION: For opmal shingle life and
to help prevent moisture issues, all roof
structures must have proper venlaon
to prevent entrapment of moisture-laden
air behind roof sheathing. Venlaon
must be designed to meet or exceed
current state or local code minimum
requirements.
FLASHING: Corrosion-resistant ashing
must be installed at wall and roof
intersecons, at guers, whereever there
is a change in roof slope or direcon, and
around roof penetraons to help prevent
leaks.
The darker shaded area of the shingle
should be placed at the top.
For correct overlap take care that
overlapping guides of upper and lower
shingles are aligned.
Only use ONDUVILLA® fasteners for
shingles and accessories.
Fasten between overlapping guides
unless otherwise noted in guidelines.
When using Closure Strips, posion so
that fasteners penetrang the shingle
also pass through the closure strip.
Please use extreme cauon on the roof to insure your personal safety at all mes. Be sure that ladders and other such devices are
safely posioned and properly secured. OSHA recommends the use of a safety harness when applying roong. Protecve eyewear is
recommended when applying fasteners or using power tools. When walking on ONDUVILLA®, wear so-soled shoes and place your feet
on the at area of the shingle. All roong is slippery when wet, dusty, frosty or oily...avoid working or walking on the roof if any of these
condions exist. Working on the roof if windy condions exist can be dangerous and should be avoided. And, like any asphalt product,
refrain from walking on in high heat.
IMPORTANT SAFETY INFORMATION