- Are you interested in learning about the important
components that make up your roof system? Well,
stick around because today we're going to be talking about
flashing
Hi, I'm Bill Reagan with Bill Reagan roofing company.
I've been in the construction industry for over 40 years now
and I've owned Bill Reagan roofing company for
over 30 years.
When our customers are interested in purchasing a new roof,
we want to make sure that they're well-informed so that they
can make the best buying decision. Today.
We're going to be talking about flashing.
What is flashing? What are the types of flashing?
What are the flashing materials and what does flashing cost?
What is flashing?
Flashing is what we use when we're roofing. Anytime,
when a roof meets a vertical surface,
whether it's shingles coming over and meeting a wall or
where the shingles are coming up and budding up into a wall,
or if say it's going around a chimney,
anything that's coming up through the roof.
That's not say what you call a penetration.
In roofing when we, the shingles run into a wall,
every single shingle is going to get a piece of what we call
step flashing. You put a shingle in,
you put a piece of step flashing in,
you put another shingle in,
you put another piece of step flashing in another shingle
gets another one, and that gives it.
That's why it's called step flashing.
And what that does is before the water can run across and
back, it will run down onto the next piece.
That's how we do the flashings,
where the shingles meet a wall or say a chimney.
If it meets a wall coming up the roof and the wall is this
way, then there's a piece of metal shaped like this,
an L kind of an L-shape flashing that we call apron
flashing.
This is used like at the bottom of dormers,
the base of chimneys, or if a roof just butts into a wall,
say on the, where a porch butts into the main house,
you would use apron flashing,
and these can be made up to 14 foot lengths.
Another type of flashing that you'll hear us talk about is
called counter flashing.
Counter flashing is where we saw into the mortar joint.
And a piece of metal is tucked into the mortar joint and
comes down over the top of it.
And that's what they call counter flashing.
And sometimes it's put in, in a step type manner,
and some people confuse that with step flashing,
but if it's flashing that you can see it's counter flashing.
If it's flashing that you can't see,
then it's the step flashing you shouldn't be able to use,
or it shouldn't be able to see step flashing,
but you do see the counter flashing and we try to put it in
a symmetrical step pattern as we're going up the wall.
Another way to do it is just to pop a straight line and just
put maybe a 10, 12, 14 foot long piece of metal in the wall.
And if that's the case,
we're more than likely going to use a much more rigid
material.
What are the materials commonly used for flashing?
The most common types of materials that we use for flashing
are either a pre-finished aluminum or a pre-finished steel.
If we're wanting to do a long run of just say on a wall
where we cut in a straight line and we want to want to do a
14 foot piece and we'll do it out of a pre-finished steel,
because it's a little more rigid or we'll do it out of
copper and copper is going to be the most long-lasting
material,
but it's also going to be the most expensive material.
What is the cost of flashing?
The cost of flashing is going to be based on the application
that you're using and what material you're going to be
using. For instance,
Step flashing out a pre-finished aluminum,
just up a standard wall.
That's going to have siding on it is going to run around $2
per linear foot.
If you're using copper, it would go to $8, a linear foot.
If you're using pre-finished steel,
it would be somewhere in the middle,
probably around $5 per linear foot. Apron flashing is based
on a per linear foot price.
And it's also based on the materials that you're using.
If you're using copper,
it's going to be three to four times more expensive.
A lot of it depends on to the size of the piece of flashing
that you're having to make,
because that determines how much material that you're going
to use.
A chimney flashing is going to run you anywhere from $400
for the step flashing and counter flashing out of aluminum
for a larger chimney that could run up to $2,000.
If you were going to flash it out of copper.
The pre-finished steel,
the main times that we use that is when we're doing a
standing seam roof.
And that is going to probably add somewhere around $8,
a linear foot on the straight pieces for the pre-finished
steel.
So that should give you a good idea on what the cost of
flashing is. In order to ensure you hire a great roofing
contractor, click on our link in the description
below and download our
list of questions to ask a roofing contractor.
If you'd like to learn more about roofing,
stay tuned and watch our next video about penetrations.
That's all for this video.
Hopefully you're feeling a little more informed I'm Bill
Reagan. And remember if a customer of mine has a problem,
then I have a problem.