M**I
发帖数: 491 | | y***j
发帖数: 11235 | 2 playset直接扔地上，不铺点儿啥东西么
【在 M**I 的大作中提到】
: 如果搞掉的话，需要多少钱？
| M**I
发帖数: 491 | 3 不知道啊，正在看这个房子，这是别人的房子。
这几户后院都种了很多树，小区其它家倒不是这样，明明知道树对foundation有影响，
为什么还要种这么多树？是不是因为后面的水渠？要靠树来保持水土流失？进而保护
foundation？
【在 y***j 的大作中提到】
: playset直接扔地上，不铺点儿啥东西么
| l*****o
发帖数: 26631 | 4 说不定这里本来就是树林， 造房子时能不砍的就没砍
【在 M**I 的大作中提到】
: 不知道啊，正在看这个房子，这是别人的房子。
: 这几户后院都种了很多树，小区其它家倒不是这样，明明知道树对foundation有影响，
: 为什么还要种这么多树？是不是因为后面的水渠？要靠树来保持水土流失？进而保护
: foundation？
| L*******7
发帖数: 14902 | 5 远处背景那个三角形的房顶，我以为是湖面上的小岛。。。。
【在 M**I 的大作中提到】
: 如果搞掉的话，需要多少钱？
| M**I
发帖数: 491 | 6 真是头大，好像把树搞掉也会影响foundation，"rebound" effect.
Trees and How They Affect your Home
One of the great things I like about Houston and the surrounding communities
is abundance of trees and not just one kind of tree but many, many kinds of
trees. But one of the main problems with foundation issues of our homes is
trees and their root system. Trees look great, add to the value of our
property, and provide us shade. Some of the very large trees also can pull
out about 200 gallons of water a day! Maybe you don’t have trees that large
on your property or the property next door, but maybe you have two or three
smaller trees and combined, they remove 50 gallons of water a day from the
soil around the perimeter of your home. Are you putting those 50 gallons of
water back into the soil every day? I don’t think so. This is one of the
major contributing factors to foundation movement. So, you ask, ‘Will I
have to spend big bucks on expensive foundation repair?’
Maybe not. But let’s step back a moment and talk about how and why trees
sometime can be bad for our home’s foundation. Here in southeast Texas and
the greater Houston area we have very expansive soils which mean that as
water leaves the soils, the soils contract or shrink. When water is added to
the soils, they rehydrate and swell or expand. This shrinking and swelling
of the soils as the moisture content vary, affects structures that are built
on it including our houses. In a year with normal rainfall, the perimeter
of an average house can move up or down ¾ of an inch, relative to the
center of the structure. The good news is that our home’s foundation should
be engineered to handle this normal movement. The bad news is that if your
home experience movement exceeding industry tolerances for residential
construction, you may have to take actions to correct the problems. (Sounds
like a lot of $$$.) The good news is that if you take action before it gets
to that point, it usually can be cheaper. O.K., enough with the good news –
bad news, what are the issues and what can we do about it?
How Much Area can Roots Pull Water From
Many people say they use the ‘rule of thumb’ that roots will extend a
distance from a tree equal to the distance the longest branch extends from
the tree. Well, I seen roots travel much farther than that and I know some
trees send tap roots down quite a ways but not out very far from a tree so I
’m O.K. with the ‘rule of thumb’ if you are only going to talk about
trees in general and understand the roots of your trees may extend beyond
that point.
Another point that I don’t hear people talking about but is of equal
importance is the area that the tree’s roots pull water from. You don’t
have the soil dry where the roots are and then a couple inches past that
point, the soils can be very moist. Water will not stay in that wet area, it
will flow towards the drier soil. Therefore, the tree is actually affecting
the moisture content of the soil from a much larger radius that just where
the roots system is.
The goal is to keep the moisture content of the soil around the perimeter of
you home consistent. If that moisture content is consistent all around the
structure and stays that way, you greatly reduce the chance of foundation
movement and the issues that come with foundation movement – cracks in the
sheetrock, brick, tile, slab, doors and windows sticking, etc. If you have
some areas that are getting enough water and the soil is moist, with other
areas that are usually dry, you can get differential settling of the
foundation which will cause problems over time if it is not addressed.
There are many actions that a homeowner can take to address trees and the
root system. One option is to increase the amount of water being used by a
water system for the area under the influence of the tree(s). If the tree is
not too close to the structure, a root barrier between the house and the
tree may be useful. Please get help from a tree expert before installing a
root barrier. If the root barrier cuts too many roots, the tree could be
damaged or die. (Killing a tree, either by accident or cutting it down on
purpose can do a lot of damage to your home in some cases. Please look at
the article on my website that has to do with this subject and the affect of
‘rebound’ has on the home’s foundation.) | M**I
发帖数: 491 | 7 Is Tree Removal an Option?
Besides not having to ever shovel snow in Houston, one of the other great
things I like about Houston is all the trees in our area. They look great,
add value to our property, and shade us from the summer sun. Trees and their
root system can sometimes also have a negative effect on our home’s
foundation. Trees can pull a large quantity of water from the soil through a
process called ‘transpiration’. Large trees could pull 200 gallons of
water a day! Now you probably do not have trees that large on your property
or the property adjacent to yours but maybe you have 2 or 3 trees and
combined they pull out 50 gallons of water a day.
Are you replacing those 50 gallons of water every day? What about normal
evaporation of water from the soil? You have a hot, windy day that
evaporation is going full force added with the water used by your trees and
other plants on your property and you soil is drying out very quickly. We
have very expansive soils in this part of southeast Texas which means that
as the clays in the soil becomes wet, they rehydrate and the clays swell or
expand. When the clays in the soil lose moisture, they contract or shrink.
Between the evaporation and the transpiration, the soils around the
perimeter of the house shrink and the perimeter of the home moves lower.
This movement of the perimeter of the foundation relative to the center can
present signs of distress such as cracks in the sheetrock, brick, tile or
concrete. Doors and windows don’t open or close properly. Some of you are
thinking that this is going to lead to expensive foundation repair. You are
heading to the garage to sharpen your ax and you are going to solve this
problem once and for all. Before you start cutting down all your trees, stop
and finish reading this short article.
‘So Foundation Doctor, what is the answer?’
And the Answer is…
If the tree was there before the house was built – leave it. The elevation
of the home’s foundation was placed after the tree already had an effect on
the soil. If the tree is small and was planted after the home was built,
cutting it down may be one of several options. If it is a small tree and it
is very close to the foundation, cutting it down now before it gets big may
be a good course of action. Every situation is different – different kinds
of trees, different sizes of trees, different distances from the home’s
foundation – they all will play a role in the decision process. This is a
time when you will be wise in consulting with a tree expert to get guidance.
They may recommend a root barrier, an adjustment to your watering program,
etc.
In other articles on our website, we will outline other potential
contributors to foundation movement. Do you need expensive foundation repair
if one or more of these problems happen on your property? Maybe not. | f*********s
发帖数: 1881 | 8 这个后院不错，我喜欢
【在 M**I 的大作中提到】
: 如果搞掉的话，需要多少钱？
| d*********8
发帖数: 638 | 9 me too
【在 f*********s 的大作中提到】
: 这个后院不错，我喜欢
| a******7
发帖数: 7936 | |
|
