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Basement Waterproofing. |
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What Causes Basement Leaks?
Crack In Basement
Wall?
How To Keep A Basement Dry
Basement
Waterproofing
Basement Drainage
Crawl Space |
Basement
Waterproofing refers to techniques used
to prevent water from entering the
basement of a house or other building.
Effective below ground waterproofing
will include both drainage and sealers.
Waterproofing is needed anytime a
structure is built at ground level or
below ground. Waterproofing and drainage
considerations are especially needed in
cases where ground water is likely to
build up in the soil and raise the water
table. This higher water table causes
hydrostatic pressure to be exerted
underneath basement floors and against
basement walls. |
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Hydrostatic pressure forces water in
through cracks in foundation walls,
through openings caused by expansion
and contraction of the
footing-foundation wall joint and up
through floor cracks. Hydrostatic
pressure can cause major structural
damage to foundation walls and is
likely to contribute to mold, decay
and other moisture related problems.
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In poured
concrete foundations, cracks and pipe
penetrations are the most common entry
points for seepage. These openings can be
readily sealed from the interior. Epoxies or
urethanes are pressure injected into the
openings, penetrating the foundation through
to the exterior, thereby cutting of the path
of the seepage. These repairs will last for
a long time. Many contractors provide 10
year to lifetime warranties on these
repairs.
In masonry foundations, interior sealers
will not provide permanent protection from
water infiltration where hydrostatic
pressure is present. Interior sealers are
good for preventing high atmospheric
humidity inside the basement, from absorbing
into the porous masonry and to prevent
spalling.
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Spalling is a
condition where
constant high
humidity or moisture
break down masonry
surfaces causing
deterioration and
shedding of the
concrete surfaces.
When the foundation
is constructed of
concrete blocks, an
interior drain tile
system, described
below, can capture
the water entering
the block system and
drain the water into
a sump. Typically,
weep holes are
drilled into the
lowest course of
block, allowing the
drainage to occur.
This system will
provide a dry and
moisture free
basement for years
to come.
Call today to have a Certified Technician solve your problems.
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604-739-2000 |
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