Re-shingling my roof soon. Need some advice for the flue.

You need to start with what specific model of stove/insert you will be using with this, then buy the flue size the manufacturer recommends, you are probably going to want to replace the inside flue at the same time as the outside chimney. They do sell these parts at the big box stores (Lowes & Home Depot) or local stove shops, or you can order online. Lowes used to have a nice little online tool that you could run to create a detailed list of everything you need to buy based on your specific situation, but for some reason they either moved or got rid of it. Any stove shop should be able to help you though, you'll need to calculate the correct total length using the formula recommended in our stove owners manual or the 10-2-3 rule, and you will need to buy the roof flange that is appropriate for the slope of your roof.

flashing is completely done for, chimney looks pretty nasy, too. what is hooked up to it?

The chimney look all used up . It looks like a old triple wall flue from the cool 60s . You could have a new roof collar made at a metal fab shop.
I would change out the hole thing . down to the stove

need od of your pipe to tell you which flashing needed

if its 9" then http://woodheatstoves.com/6-flashing-flat-to-612-pitch-4-skirt-p-214.html
something like this,
and a storm collar http://woodheatstoves.com/6-storm-collar-p-213.html

if its 11" then http://woodheatstoves.com/8-flashing-flat-to-612-pitch-4-skirt-p-215.html
something like this
and the storm collar http://woodheatstoves.com/8-storm-collar-p-212.html

then a sorm collar

wellbuilt home said:

The chimney look all used up . It looks like a old triple wall flue from the cool 60s . You could have a new roof collar made at a metal fab shop.
I would change out the hole thing . down to the stove

Click to expand...

pre-made flashings are much cheaper....

but i agree, get rid of the entire sytem!!

That chimney distracts from an otherwise lovely home. I'd deal with it before the roof...I suppose something durable that looks like a real brick chimney would look good up there.

the chimney tooks like a prefab, and there is a lot of brick fireplace there... you must have a prefab fp with some veneer of bricks around it. I would rip out the chimney, as it looks scary... especially with the better n' bens insert you got there (those things are rippin soot machines). the whole fp should probably go too, and get a hearth style install going with some metalbestos. I would bet money that there is no piped in connection with that stove, and you have no protected floorspace in front of it.. it has propbaly been that way for a while, and i am suprised you are insured with that going on. most companies will grandfather some of that in for the original owner, but i would not bank on them helping you out if something goes south and there is a chimney (or any other) fire. should you ask them to send an adjustor (or one shows up) they may give that a real hard look.

You might be a little far north for this, but I would look into reflective shingles. They look like regular shingles but there are designed to reflect the radiation from the sun. This lowers summer cooling bills.

No way should you try to shingle around that flashing with a new roof. Looks like they brushed tar around the pipe at some point. That base flashing is shot. Your roof doesn't look THAT bad. I would replace that chimney now before this winter's use and hold off on shingling in a year or two until your funds build back up. A new shiny ss chimney with a probably smaller diameter pipe would give more curb appeal than that mess also. But only you know what your financial situation is. Do you want to continue using a wood stove and burn wood. If you have no real interest or don't plan on burning much wood take that chimney and stove out. Then you would have a nice curb appeal roof. Get dimensional (architectural) shingles also. Well worth the little extra money they cost. By the way, on second look that valley doesn't look too good. Get a closed cut valley also. They look better and are just as good. Tony