Install
furring strips along hip before slating roof. These
are 3/4" furring strips being used for standard
thickness (3/16" to 1/4") slates. Furring
strips were nailed to roof with 2.5" hot dipped
galvanized common nails. The wood strips should be
approximately 3X the thickness of the slates.
Install first
piece of copper flashing over bottom of furring strips.
This is 20 ounce copper. Flashing is nailed in place
with 1.5" copper roofing
nail.
Fold bottom
of flashing to hide furring strips.
Install slates
over flashing - nail into furring strips. Nails can
be 1.5" copper roofing nails, although 2.5" copper
roofing nails will need to be used in places.
Install next
piece of step flashing over hip slates. A single nail
is sufficient.
Install next
pair of hip slates over step flashing. At least two
nails per slate is required. Three is better. If you're
going to nail through the lower slate, drill first with
a 3/16" masonry bit and use a 2.5" copper
roofing nail.
This flashing
is 10" long x 8" wide on 8"x16" hip
slates.
The flashing
is folded lengthwise in half (4" each side). The
16" hip slates are overlapped 8" (halfway)
by both the overlying slates and the flashings. [The
step flashings then overlap each other by 2".]
Continue up
the hip in this manner, flashing over the top of each
pair of hip slates. Install the slates in pairs, not
one side at a time. The hip slates do not need to be
tapered - most can be installed without cutting.
Finished hip
is leakproof and permanent.
HIP
AND RIDGE JOINT
A ridge is
coming to a hip. Install copper at joint.
Install another
pair of ridge slates cut to fit the valley. Install
next step flashing over these slates. Install loose
(not nailed) strap hanger over this copper step flashing.
Lay pair of
short ridge slates over strap hanger on bed of adhesive.
In this case, GE Silicon II, clear lifetime caulk.
Bottom edge of strap folds up to hold pair of slates
in place while adhesive sets up.
Proceed up
hip with first pair of hip slates cut at an angle to
fit against ridge slates. Install step flashing under
each pair of hip and ridge slates. All ridge slates
should be caulked at joint. Hip slates do not need
caulked at joint.
VENTILATED
SLATE RIDGES
Again, install
furring strips on both sides of ridge opening before
slating roof.
Roll a low-profile
plastic ridge vent material (Owens Corning VentSure
shown above) over the furring strips.
Nail the vent
material to the furring strips. Install ridge slates
and flashings in the same manner as installing slate
hips, except ridge joints should be caulked. You will
need longer nails when installing ridge slates over
vent material. In this case, 2.5" copper
nails were used.
Vertical rod
is a lightning rod.
The above
ridges are ventilated.
For
a more permanent slate roof ridge vent, try Topslate,
ph: 847-806-4540
Castle
Metal Products
Roof
consultation with Joe Jenkins via Email!
Learn
about some of the mistakes people make when installing
slate roofs!
Basic "how
to repair a slate roof" instructions!
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