Replace shingles
which have
completely blown
off. For
shingles with
tabs blowing up
and down, hand
seal the
shingles with an
asphalt plastic
cement, commonly
referred to as
flashing cement.
This roofing
cement must
comply with ASTM
D4586 -- Type I
or Type II which
is the standard
specifically for
asbestos-free
asphalt plastic
roof cement.
(Some products
meeting this
standard may
involve
hazardous
materials. This
bulletin does
not purport to
address all of
the safety and
health problems
associated with
the use of
materials
meeting this
specification.
It is the
responsibility
of the user to
observe the
safety and
health practices
as determined by
the manufacturer
of the product
and stated on
the label,
instructions and
Material Safety
Data Sheet (MSDS).
To hand seal,
lift each tab of
a 3-tab shingle
and apply two
spots of the
cement under
each tab. Each
spot should be
approximately
the size of a
quarter and
placed 1" to 2"
from each end of
the tab and near
the bottom.
Laminated
shingles require
4 spots of
cement per
shingle. After
application,
press the tab
down firmly to
start the bond.
Be careful not
to apply the
cement too close
to the bottom of
the tab. This
causes the
cement to
squeeze out when
the tab is
pressed down.
