How Hard Is It To Tie Into Existing Shingles With New?

Dbower

I am about to put an addition on my house and the only thing that is keeping me from doing the shingles myself is the tie in to the existing. I will be creating a new valley on one side and tieing into the existing shingles on the other. Is it hard to do the tie in? If not, how do you go about it? Thanks.

knucklehead

Yes that is the hardest part. But you can do it . A wise man told me once that a roofer is nothing but a reject carpenter. It ain't easy ,but it is pretty simple .

Dbower

I'm sure it is but I have never done it. Thats why I am looking for some advice here.

ChrWright

Peel it off and re-do the plane of roof you're tying to... It's typically not worth it to try and save part of it and still do a decent job on the valley.

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TimelessQuality

Ouch!

Then by that logic, you must be a reject carpenter, that's also rejected as a roofer.

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Dbower

I may just have a roofer do his part for this because i don't want a leak to come about. But if it seems easy enough I may give it a shot. And to redo the two plains that I'm tieing into would have me end up replacing 75% of my roof and its only 3 years old.

tinner666

You have to use a roofster bar to loosen and remove the existing shingles completely for about 3' along the valley line. Install some I&W, then some 14" metal to help keep the valley center even amd maybe keep a nail from coming back up. ( Happens often if a 2x nailer isn't used to secure the sheathing).
Then fully weave the valley according to the instructions on the wrapper.
Use HDD nails, not the EG shiny crap.

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knucklehead

No offense ,man. I did this recently on a screened porch I built. The roofer we had lined up put me off and they were calling for bad weather for like a week. So I did it Once you get past that valley it is all downhill. Last summer I did a room addition and the roofer didn't get ther when he was supposed to and I got blamed for the ruined hardwood floor in the kitchen. I said never again.

RooferJim

I resent that remark about reject carpenters . Roofing is a different trade entirely. A good carpenter can do some roofing as a good roofer should do some carpentry but they are different trades. I have fired plenty of reject carpenters . A journymen roofer can do all types of roofing and flashing work. not just shingles.

RooferJim
www.jbennetteroofing.com

johnk

And a GC is just a roofer with his brains kicked out

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Grumpy

Knucklehead that wise man was a friggin idiot, probably a rejected roofer.

Dbower, It's not impossible but there are some things to consider. First the exposure of the shingles, both new and old. Second the condition of the existing shingles. Making sure everything will line up perfect from new to old will take some fore-thought and may require you to adjust course exposures but isn't impossible.

Persobally in my book, this is a repair and we don;t guarantee repairs. I'd stip what's there if they want a warranty.

Renegade

Your username obviously fits you well.

DBower, for a roof that new tinner pretty much summed it up. If the deck you are tying into is 10 squares, there's no reason to replace the whole thing when you can get by with one square. Carefully remove the shingles 2-3 feet out from where your valley will be tying in.

MALCO.New.York

The hardest part is the "Color Match"!

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Just a Roofer

Yes color match even the same shingle 3 years old is going to be faded lighter than the new ones. It all depends on how much you can see & if you don't mind some noticable color change if the color exists anymore for that matter. You also should consider how well the original was laid out so you don't have to tie into crooked vertical/horizontal shingles.

Lefty H

Hi Knucklehead,

If you would hire reputable roofing contractors, that problem would be elimiated.

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