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JeanAnn 10-10-2013 04:52 PM

J Channels and Certainteed Perfection Shingles
Does anyone know the minimum with of J channel to use as a starter strip and the last row of shingles (installing undersill trim as well) with Certainteed Perfection shingles. On the same note will it chang on a gable as it appears the shingle is about 1/2 inch thick at its thickest point.
Thanks to everyone in advance.

kwikfishron 10-10-2013 05:08 PM

It's all in here.

joecaption 10-10-2013 05:14 PM

You really need to go on the CertainTeed web site and down load there install direction and read them from start to finish on this style siding.
You post is a little confusing to me. ( a few miss spelled words is not helping)
Under sill can not be used with that style siding, it's to thick to lock in.
If memory serves me you going to need 1" J moulding on the rakes and 5/8" at the top and bottom. Each piece may be 1 thick but when you lock two together it's far thicker.
Why are you using J as a starter and not a real starter strip?

JeanAnn 10-11-2013 06:55 AM

J Channel
Thanks to all for the help. A J channel was used as the starter strip because there is stone leading up to the house and I was told there was not enough clearance to put a starter strip up and lock the shingle.
Long Island, NY

joecaption 10-11-2013 08:56 AM

Can you post a picture?
If it's the way I think it may be your going to need some form of Z moulding before the J goes up to keep water from getting in under the trim.
And no, caulking is not the right thing to use.

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