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Chimney Rebuild

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					If you need chimney repair and it is beyond the point of repair for chimney
tuckpointing it must be tore down and rebuilt, and there are a few things that you must
do to ensure that your new chimney will last for years to come.

The first thing you must do is select the proper building materials. You should use a
brick that is solid with no holes in it this will increase its durability. Bricks that are
cored (with holes) tend to have a much shorter life because moisture can build up in
the hole cavities and break down the brick and mortar joints from the inside out, this
is especially a problem in colder regions. So be sure to pick out a solid brick if you
can.

Next the chimney needs to be tore down. You first must protect your roof from falling
debris, do this by placing a cloth tarp down over it around the chimney. You should
really use cloth tarps because plastic vinyl ones can be slippery and you dont want to
slip and fall, it could result in serious injury or death. After your tarps are in place
start by removing the concrete cap first, the concrete cap must be first or you risk a
avalanche of heavy masonry units falling all over the place and possibly through your
roof. You may have to use a partner saw to cut it in sections first before picking it up,
they can be very heavy.

Next thing after the concrete cap has been removed is to start removing brick. It is
best to use a small hammer drill for this with a pick attatchment on it and just focus
the pick on the joint below the brick you are removing till it breaks free and you can
grab it. Depending on the roof pitch and placement of the chimney you should use a
bucket to put debris in or if you are confident it is safe below you can throw the brick
down to the gound in a designated roped off area below. Be sure to remove the center
clay flu liner if there is one, as well as you work your way down, but try not to break
it, odds are you will send debris down your chimney shaft which is not a good thing
and it will have to then be cleaned out. The brick should be removed down to just
inside your roof line unless its really bad you may have to reach down further or do a
little work inside the attic to get it to a secure rebuild point.

Now that your ready to rebuild be get your new building materials up to your work
station and start laying in brick. it is very important to keep the courses level and
plum to ensure a good looking and lasting chimney. If you are using clay flue liners
put one in place as you go, once it is secured by brick all the way around it up to the
top then place your next one in place and continue the process till you hit your desired
height. code for most areas is 10 foot from nearest roof line and then 2 foot above that
for proper drafting of fumes, Generally in most cases if you build it to the same height
it was you should be ok, but be sure to check your area code just to be sure.

After all your brick and flu liners are in place you need to pour a concrete cap, this is
one on the most important features of your chimney and it should be done correctly to
ensure a long lasting chimney. Yor flu liner should be sitting about 6 inches above
your last course of brick, next build a form out of 24s around the top course of brick,
fill your form up with concrete till you reach the top of your form, Put a slight slope
on the cap from the liner down to the edge of form for good water shedding. Also tap
your form lightly as you fill it to help reduce bubbles in the pour. After it sets up for a
bit say a few hours pull the form and smooth off the edges of it with a small concrete
float to seal all holes and to also make the cap look nice.

After that is complete install a draft cap, or also called a bird cap to finish off the
chimney. One of these is needed to reduce the chance of back drafts pushing fumes
back into your house and they also serve to rain out and to keeps small animals out as
well. They can be picked up at just about any home improvement store and are
relatively cheap. You must also install your flashing around the base of chimney as
well to ensure that is is sealed and water tight.

				
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