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Old 02-28-2019, 10:36 AM   #1
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New building will adjoin mine. Should I waterproof my siding?


A new house is being built next to my mother's Victorian, which will completely cover one side of her house and make it inaccessible. Developer will install flashing and water gutter at roof seam.

* Should we still be concerned about water invasion getting into our siding?

Some factors:
Paint is peeling in some places.
The siding was improperly cut below the window leaving a vertical seam - a potential leak point (see pics below)?

Thanks in advance,
Max

* Can we just put plywood and flashing over the window?
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Last edited by maxim1685; 02-28-2019 at 10:41 AM.
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Old 02-28-2019, 10:54 AM   #2
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Re: New building will adjoin mine. Should I waterproof my siding?


There is flashing above the window that you will leave in place, One piece of plywood to match the sheeting behind the siding and flashing on the bottom out over the lower siding and then another plywood to match the siding thickness.
I would clean the siding and touch up where paint is missing.
I would be more worried about under the window where the dirt is against the siding.
That is a good area for rot and any problem there is best fixed from the outside..
Then I would cover the whole wall with house wrap and call it a day.
What about the electrical conduit.
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Old 02-28-2019, 11:10 AM   #3
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Re: New building will adjoin mine. Should I waterproof my siding?


Quote:
Originally Posted by maxim1685 View Post
A new house is being built next to my mother's Victorian, which will completely cover one side of her house and make it inaccessible. Developer will install flashing and water gutter at roof seam.
What will be the space between walls? A zero-lot-line build, meaning about 1" away? Taller than your house so the builder will put flashing over the gap onto your roof? Is that a gutter on yours so the roof slopes to this shared side?

My OCD would want to remove the siding completely, but you never know when they'll build or if it gets canned. If a zero-line build, it doesn't matter what is on your wall, if the shared roof flashing fails it will leak.
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Old 03-01-2019, 12:22 PM   #4
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Re: New building will adjoin mine. Should I waterproof my siding?


@Nealtw : Good eyes, and thanks for your comments. Yes there's an electrical conduit that runs vertically along the siding, about 10 feet in length.

* Should we cut open the siding and pull the conduit into the wall?

@3onthetree : Yes, to your questions. It's a zero-lot-line-build and the gutter/flashing will be as you say.
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Old 03-01-2019, 12:28 PM   #5
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Re: New building will adjoin mine. Should I waterproof my siding?


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Originally Posted by maxim1685 View Post
@Nealtw: Good eyes, and thanks for your comments. Yes there's an electrical conduit that runs vertically along the siding, about 10 feet in length.

* Should we cut open the siding and pull the conduit into the wall?
.
Ask that question in electrical, you diffidently don't want a junction out there.
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