Exterior
Water Management System Exterior waterproofing prevents water from
entering foundation walls therefore preventing the wicking and molding of building
materials. Prior to the 1980's much of the original exterior waterproofing was
actually damp-proofing using a degradable asphalt-based covering. Today, however,
Polymer products such as membranes will completely waterproof an exterior foundation
wall. This material has a half life in the thousands of years which makes it ideal
for a long term exterior waterproofing solution. Asphalt and tar based compounds
are affected by soil pH. and break down after 10-20 years, thus making that type
of waterproofing ineffective over time. Interior
Water Management System Many interior drainage systems are patented
as well as recognized by B.O.C.A (Building Officials and Code Administrators)
as being effective in controlling basement water. They function by draining underground
water from alongside the foundation footers and underneath the basement floor
or from the walls across the footing and into the French drain. The
French drain channels it into a sump pump system, which will then pump the water
from the basement. To simplify:
1.) Water enters the home from the basement wall floor joint, where it would normally
enter into the house. 2.) A perimeter trench drain, such as a French drain,
collects the water from under the floor before it enters into the
basement. 3.) OR Water is then bled from the wall
across the footing to the French Drain in applicable foundations. 4.) The
drain directs the water to a sump pump. 5.) The sump pump directs the water
out of the house. 
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French Drain A French drain or land drain is a ditch filled with
gravel, rock that redirects surface and ground water away from an area. French
drains are common drainage systems, primarily used to prevent ground and surface
water from penetrating or damaging building foundations. Alternatively, the French
drain technique may be used to distribute water, such as that which flows from
the outlet of a typical septic tank sewage treatment system. French drains are
also used behind retaining walls to relieve ground water pressure.
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Battery Back Up Interior basement water management systems should
be prepared to work in the case of a power outage, the failure of a sump pump,
and in the face of overwhelming torrential rain. A proper sump pump, backup sump
and/or battery backup sump pump should be installed in a large sump pit with an
airtight lid for safety and to keep humidity from seeping through to the basement
environment, where it can promote mold growth. Despite widespread sump pump failures,
top-of-the-line sump pump systems are more reliable than ever.
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Sump Pumps A sump pump is a pump used to remove water that has accumulated
in a sump pit. A sump pit, commonly found in the home basement, is simply a hole
to collect water. The water may enter via the perimeter drains of a basement water
management system, funneling into the pit, or may arrive because of rain or because
of natural ground water, if the basement is below the water table level.
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Submersible Pumps Submersible pumps are found in many applications,
single stage pumps are used for drainage, sewage pumping, general industrial pumping
and slurry pumping. They are also popular with aquarium filters. Multiple stage
submersible pumps are typically lowered down a borehole and used for water abstraction
or in water wells.
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Drywells A dry well is an underground structure that disposes of
unwanted water, most commonly storm water runoff, by dissipating it into the ground,
where it merges with the local groundwater. Simple dry wells consist of a pit
filled with gravel, riprap, rubble, or other debris. Such pits resist collapse.
These dry wells are usually buried completely, so that they do not take up any
land area.
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Parging A thin coat of a cementitious or polymeric mortar applied
to concrete for refinement of the surface. The typical parge coat is 1/32"-1/16"
in thickness; this may be less than the minimum thickness allowed by many mortars
types. The intent is to create a contiguous surface by filling surface air voids
and bugholes and to level concrete with extreme rugosity to a level suitable for
topcoating with a high-performance protective coating.
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Foundation Cracks Foundation cracks that are both vertical and horizontal
are often serious. Cracks in a foundation are often caused by poor building method,
from undermining, or resettling. Cracks often indicate an underlying problem.
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Stamped Concrete Stamped concrete is concrete that is patterned and/or
textured to resemble brick, slate, flagstone, stone, tile, wood, and various other
patterns and textures. Stamped concrete is commonly used for patios, sidewalks,
driveways, and floors. The ability of stamped concrete to resemble other building
materials makes stamped concrete a less expensive alternative to using those other
materials.
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