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Old 08-19-2014, 10:15 PM
 
Location: Oregon
1,458 posts, read 5,112,635 times
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Quote:
Originally Posted by nmws View Post
There are a couple of nice, healthy-looking redwoods growing near the left front of my house (we bought it recently), probably about 8-10 feet from the front-left corner of the house.

A recent home inspection report said that the foundation looked okay, but that there are roots in the crawl-space.

How concerned should I be? What is the the best-case and worst-case scenario here?
You might Google my web page on the Achilles Heel of Coast Redwoods.

Can't post my link, but it's out there to find.

When you read it, keep in mind that one or two roots under a foundation may not be able to lift a single story. But if there ends up being dozens growing and lifting in tandem, heaving may be possible.

Can't quite say without standing there.

If you don't mind blowing the roof off once in a while, it may not be too expensive to modify the foundation to bridge some roots and just let them grow under unimpeded by weight. A home nearby did it for a magnificent Deodar Cedar.

Otherwise, your trees look stellar aesthetically.
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Old 08-20-2014, 09:43 AM
 
Location: WA
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I have seen redwoods close to homes (single and multi family) with no issues. I would just enjoy the trees.
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Old 08-20-2014, 09:56 AM
 
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Redwoods need to live in a community. Their roots are fairly shallow and intertwine with other redwood trees. This keeps them from falling over in high winds. If you live in a high wind area, do not only remove one of them -- you will end up with the other tree toppling over one day.
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Old 08-21-2014, 08:51 PM
 
Location: Oregon
1,458 posts, read 5,112,635 times
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Quote:
Originally Posted by Molli View Post
Redwoods need to live in a community. Their roots are fairly shallow and intertwine with other redwood trees. This keeps them from falling over in high winds. If you live in a high wind area, do not only remove one of them -- you will end up with the other tree toppling over one day.
They grow all over the west coast, including inland, many of them growing single. Some rather large.

Coast Redwood can survive very well as individuals, especially if not watered too much in moderate climate areas. The more they are watered, the more shallow the roots grow. Less water usually means deeper roots.

My work is Certified Arborist, and been doing tree care in Oregon since 1980. So I have seen hundreds of examples, if not more.
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