INTEGRA Engineered
Foundation System
The INTEGRA Foundation System is designed to produce a maintenance free basement that provides the homeowner with a drier,
stronger and more durable alternative to a block foundation.
The INTEGRA Engineered Foundation System is 17% stronger than a poured foundation without vertical rebar or a block foundation built per
code.
View cross
section of an INTEGRA wall.
Click
here to watch our morphing wall presentation. A poured wall from start to
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Concrete Strength: Minimum of 3,000 pounds per square inch. Concrete includes a mid-range water reducer
and a has a maximum slump of 4
½" Minimum Wall
Reinforcement
- Two rows of #4 rebar horizontally (one on top
and one on the middle tie)
- One vertical piece of rebar every
6 lineal feet
- Two diagonal rebar at each window to reduce shrinkage at
bottom corners
- Inside corners have a minimum of 3 rows
horizontally to increase against tensile forces
Control Joints: At
least every 20 ft. At each control joint Waterstop is place in wall or a high grade
caulk (Sikaflex) is put at exterior
Foundation
footings: Minimum of 8" thick by
20" wide
Column pads: Minimum size of 30" x
30" x 12"
Spread footings: Minimum size of 18" x
8"
Foundation Anchors: Choice of Simpson MASZ Straps (zinc-coated for corrosion resistance) or 5/8" galvanized anchor bolts every 6' (code dictates the use of 1/2" anchor bolts every 6', but studies have shown that these will fail when used for basements 9' or taller)
Drainage system: FORM-A-DRAIN with a minimum of 12" of stone
backfill at the time of the footing to prevent soil contamination of system
before backfilling and installing the basement floor. For more information on
FORM-A-DRAIN, click here.
Uniform Brick Pattern: Standard to the
inside of the basement. Smooth basement walls are available upon request.
Windows: All vinyl with insulated glass,
weather stripping and removable screens. For more information on our windows,
click here.
Concrete Strength is determined in Pounds
per Square Inch (PSI). The higher the PSI the stronger the concrete is. The
Uniform Dwelling Code requires a minimum of 2500 PSI. We use a
minimum of 3000 PSI concrete which is the warm weather concrete
mix design. In cold weather the concrete will actually get much stronger.
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Slump is a measurement of how much water is added to the
concrete. The Uniform Dwelling Code requires a maximum of no more than
6 inches. We use a mix with no more than 4 ½".
The more water that is added to the concrete the weaker it becomes and will
cause additional cracking. If there is not enough water, the concrete will be
too stiff to put into the concrete forms, and the appearance will be
compromised. Back to
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Wall Reinforcement refers to the
steel rebar rods that are added to the wall to add strength to the walls. The
horizontal reinforcing reduces shrinkage cracks and the vertical reinforcement
adds the tensile strength to the wall that concrete lacks. The Uniform Dwelling
Code does NOT require any steel rebar reinforcement. Back to top
Control
Joints are a way of controlling where the concrete wall will crack.
Concrete is a product made with water and when the concrete begins to dry it
shrinks which causes cracking. Waterstop is placed behind the control joints.
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Waterstop is a steel plate that runs the height of the wall to
prevent water or other debris from entering in our designated cracks. Back to top
Foundation Footings are the base for the foundation walls. The
minimum footing size required by code is 16" wide by
8" thick. We use a 20" wide by 8" thick
footing. The wider the footing, the sturdier the wall will be and the better it
will distribute the home's weight. Back to
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Drainage system is the system that
drains water away from the foundation. A standard drainage system includes
3" perforated, round plastic tubes. We use a hard plastic drainage
system that is poured directly with the footings. This helps prevent crushing
and movement away from the footings, which are problems associated with the use
of 3" drain tile. Back to
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Brick Pattern is a uniform pattern
that imitates standard size brick. It provides a unique finished look to your
foundation. The concrete mix and a properly maintained concrete form will
provide the best looking finish. Back to
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Windows can vary in shape and
size. There are also many different ways to install them. We use pour in place
windows that use a window "buck" which is nothing more than a form to pour the
windows in the concrete wall. This process provides a smooth finished sill
around the window. Back to
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