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How to
Replace a shingle roof Part 2 Of 3 |
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Covering The Roof With Felt.
Some Hazards
To keep In Mind
Besides the obvious risk of falling off the roof,
there are a number of dangers in roofing work:
Objects can fall off the roof and injure people
below. Warn others of the work overhead, and
keep children away from the work area.
Use caution when carrying bundles of shingles up
ladders. If the shingle bundles are too heavy,
divide the bundle in half (which is the only way
I'll carry these extra-heavy shingles up a
ladder). There's no need to play He-Man and fall
off a ladder, or rip the muscles in your back.
Keep one hand free when climbing up and down the
ladder. An even better way to haul tools and
materials is to place them in a bucket and use a
rope to lift the bucket.
Some lumber yards will deliver the shingles to
the roof top for an extra charge. This is only
practical if the delivery can be timed to the
point where the old roof is removed and the
tar-paper laid down. |
       
After the shingles have been torn off, there are
several steps commonly taken to "dry-in" a roof. New
drip-edge is usually installed, new flashing may be
installed around roof penetrations, and roofing felt
(also known as tar paper) is installed to prevent
leaks while the shingles are installed.
Installing The Drip Edge:
Step-1 Picture-1
After the roof surface has been completely cleaned
of debris and all loose boards have been fastened
down, you can install the drip edge (also called
"edge iron") along the eave. you can nail the drip edge with
1-1/4" galvanized roofing nails.
Step-2 Picture-2
At the corner, the drip edge along the rake (the
sloping edge) is laid over top of the eave's drip
edge and nailed.
Step-3 Picture-3
Butt joints are made by overlapping the pieces a
small amount and forcing them together. The aluminum
bends easily.
Step-4 Picture-4
After you are finished installing the
drip edge you will need to install the
ice and water shield.
This 3-foot-wide strip is extremely sticky... once
applied you can forget about peeling it off. Here
you carefully ad herring the edge of the new
roll. Then he pulled the release paper from the back
and pressed the sheet in place.
Depending on your location
the local building codes
now require an approved ice and water shield be
installed up to a point three feet in from the outer
wall. This is intended to prevent roof leakage from
the inevitable ice dams that form when the snow
melts in late winter.This product is truly amazing. It literally seals
around all nails that penetrate it, forming a
water-tight barrier. It's expensive, around $60 a
square, but far cheaper than the damage from a leaky
roof. I once saw a large hotel building (that had a
history of terrible ice dams and leaks) that was
completely covered in this product before it was
re-shingled. They must have used two hundred rolls
of ice and water shield. Whew! (I'll bet they got a
volume discount.)
How to do your
Hole Patching:
Step-5 Picture-5 & 6
The larger knot holes in the roof were covered with
aluminum flashing, which was stapled in place with a
hammer taker.
Smaller holes like these, just big enough to stick
your thumb through, were left uncovered.
Step-7 Picture-7
& 8
Installing the 15 # Felt:
You roll
out the tar paper and secur it with
staples. The hammer tackier (right) is by far the
fastest tool for this purpose, although an electric
staple gun also works well.
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Step-9 Picture-9
Over the plumbing vent flashing we slipped a scrap
of felt, to be removed when the shingles are
installed.
Step-10 Picture-10
The rows of felt are overlapped by a few inches. It
only took about 10 minutes to cover this side of the
roof.
Step-11 Picture-11
At the chimney, lay a small piece of felt
over the upper edge of the flashing.
Cutting the Hole for the Ridge Vent:
Step-12 Picture-12
To allow the hot attic air to escape through the
ridge vent you plan to install, you cut a thin
strip of roof sheathing from each side of the peak.you
simply set the circular saw blade to exactly the
depth of the roof sheathing planks, and followed the
lines you snapped.
Step-13 Picture-13
you make
the hole a few inches shorter than the total
length of ridge vent.
Step-14 Picture-14
The hole runs almost the entire length of the roof.
Step-15 Picture-15 & 16
The tar-papered roof is a logical stopping point for
the day. This layer of felt is an adequate temporary
roof surface that will stand up to moderate winds if
stapled securely at the edges. Note how we placed
bundles of shingles on the roof, in preparation for
the next day's work.
How To Replace A Shingle Roof
Part Three |
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