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corbins 07-09-2013 01:12 PM

Siding Rotted Lower
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Getting ready to paint our house. The lower part of our siding is rotting away where it touches the patio and landscaping. I think it is a poor design. How can I correct this? Cut away 6" on bottom and install HardiePlank or what would be the simplest fix that would work? See attached photo. Thank you.

Chris 07-09-2013 02:12 PM

There should have been an air gap at the bottom from the beginning. At least around me there always is to keep the water from sitting.

Chris 07-09-2013 02:13 PM

Do you know what is behind the siding at the bottom? Is there concrete for a stem wall or is it just a stud nailed to the foundation? If it has a proper stem wall you may be able to just cut the bottom inch or so away to make an air gap.

WindowsonWashington 07-09-2013 04:29 PM


Needs to be cut back and should have a different trim detail and z-bar flashing.

nealtw 07-09-2013 06:21 PM

You won't know how bad it is until you cut it away, the landscaping and the concrete should not be right to the bottom of the siding, so expect some bad news.

corbins 07-09-2013 08:01 PM

I cut away a little and I feel foundation backing. Looks like it is some type of foam board on top of the foundation with some type of 4x8 sheets on top of foam board (not plywood). I guess I could drill a few holes to determine the top of the foundation. At that point, cut the rotted bottom away lower than the foundation. Do you agree and then what?

Chris 07-09-2013 09:23 PM

I wouldn't cut it too high but an inch or two should be enough as long as there is foundation behind it. A Z-bar won't hurt and will help seal things up but around here they are not used all that often.

nealtw 07-09-2013 09:52 PM

Is this the house or garage? Is this a slab house? Is there areas around the house where there is a different view of the bottom of the wall that might help explain what you have?

corbins 07-10-2013 06:32 AM

1 Attachment(s)
Its not a garage, its an add on to my house where you step down into that room. Here is a photo of the other side of that room. You can see there is foundation exposed. Thank you.

nealtw 07-10-2013 06:46 AM

Compare the hight of the siding from the two sides of the house to sio if you have siding below the level of concrete. Measure down from the soffet.

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