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How to
Replace a shingle roof Part 1 Of 3 |
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Tearing Off The Old Shingles.
With many older homes, you are often faced with the
decision as to whether you should repair or replace
an older roof. Replacement can be expensive, but
consider this. A repair job can end up costing you
more than you save. Roofing materials vary widely in
price. Clay tiles are the most expensive, with the 3
tab asphalt shingle being the least. Roofing
materials also change a lot depending on locale. In
southern California you will often see ceramic and
clay tile, which is not appropriate to areas such as
New England, where winters can raise havoc with this
type of material. There, you will see slate roofs
which last for decades. In every instance, there
comes a time when the roof needs to be either fixed
or repaired.
This
house was built around 1950s. There were two layers
of shingles on the roof. The low-pitched roof
measured about 14' x 42' on each plane or just less
than 1200 square foot.
This small ranch house had a simple gable roof with
no valleys, no hips, no dormers... just two
low-pitch planes. The homeowner chose architectural
shingles, which cost considerably more than basic
three-tab shingles, but which have a longer life and
a more interesting, textured appearance.
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Step-8 Picture-8
It took about an hour to scrape the shingles from
one side, with 4 people working. But there were
still lots of tiny pieces of shingle stuck to the
wood, and many roofing nails that needed to be
removed or pounded down.
Step-9 Picture-9
The plumbing vent stack had an old metal flashing
around it, and it was sealed with gobs of roofing
tar. We removed that and scraped off the tar.
Step-10 Picture-10
This is a typical scrap of shingle that was left
behind by the shovels and scrapers.
Step-11 Picture-11
You can use a claw hammer or a flat pry bar to yank out the nails.
I went over the roof on my hands and knees and wiped
the small chunks of debris downhill with my gloves,
and pulled out any nails I found. This process took
about 30 minutes per side.
Step-12 Picture-12 & 13
There were many boards with loose nails. This roof
was sheathed with 1x10 planks, as was common before
the widespread use of plywood for roof and floor
sheathing. We hammered down the nails.
Step-14 Picture-14
The ends of the roof boards told us where the
rafters lay... not to mention the rusty nails that
were popping out.
I drove in some 8-penny nails to secure the roof
sheathing boards to the rafters. I used one or two
nails per 10 inch wide board, at each rafter.
Now that you have got the tear off done it is time
to put on the drip edge and felt. Click here to get
too part 2 of three
How to replace a shingle
roof Part Two |
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