Does anyone have a decent method for properly flashing vinyl siding/J-channel above a roof plane? This is a very common application, yet it is one which leaks very easily when water is channelled behind the siding far enough to get above the step flashing. Currently I am applying weatherguard above the step-flashing which is costly and tedious. I am interested in any creative soultions which keep the water from pooling and flowing behind the siding.
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Currently I am applying weatherguard above the step-flashing which is costly and tedious.
Often, doing something the right way is; counterflashing is exactly what you need
I am interested in any creative soultions which keep the water from pooling and flowing behind the siding.
Creative often is the most costly way to do things
Not sure exactly what situation you're talking about.
Do you mean where a roof slope up to a vertival surface ? (Like the front of a dormer)
Or where a roof sloped up alongside a roof? (Like the side of a dormer)
You are such a good friend that if we were on a sinking ship and there was only one life jacket....
I'd miss you a lot and think of you often."
Much like the side of a dormer. My situation is where a one story garage roof meets the side wall of a two story colonial.
Thanks
My thought would be doing things in this order:
1. Shingles with step flashing
2. Felt or Tyvek on the vertical wall, making sure it laps OVER the top of the step flashing.
3. Then the siding
You! - Out of the gene pool
Put the flashing and tarpaper for the roof plane down before you put up the siding. Run the tarpaper a foot or so up the roof. Make sure that the tarpaper/housewrap/whatever-u-use on the vertical sided surface overlaps in shingle-style fashion the step flashing (you are using step flashing, right?) coming up onto the sided portion.
Another thing you can do is put a continuous wide piece of flashing (the length of the wall/roof joint) over the step flashing, start from the joint going up the wall for the width of the flashing. Then lap the housewrap or whatever over that.
This reminds me of the new house I saw the other day in which the center portion was framed and housewrapped first, and the two half height wings on either side done a bit later. . .the housewrap from the center portion wall above the wing roof extended down into the living space. I can only imagine the leaks!
Everybody covered it, as far as I can tell . Step flashing. I bet ice and water sheild would work under the step flashuing , up the wall part way.
Edited 7/25/2002 9:08:07 PM ET by Edgar76b