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Wall Insulation
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Works Summer AND Winter!!!!
Most homes built before 1972 do not have insulation in the
walls. Also, few homeowners are even aware that their home has
empty walls. During the winter, insulated walls will serve to
hold the heat in and prevent warmth from escaping. Once
insulated, the walls won't feel ice-cold and condensation / mold
is significantly less likely to form.
Wall insulation makes a
huge difference in the comfort of a home.
During the summer, wall insulation will reduce the amount of
heat coming in through the walls and help contain the coolness
within your home. The South & West facing walls are often
referred to as the "hot walls", the sun tends to bake on them
causing the walls to be hot. These heated walls often tend to
radiate heat into the home even well after sundown. Once
insulated, the heat entering the home is dramatically reduced.
How it's done...
Wall insulation is usually done when the home is about to be
re-painted, re-stuccoed or texture-coated. The reason for this
is due to the many holes we must drill on the face of the walls.
Wall insulation can not be injected through the attic area nor
from underneath the home. We have to drill holes on the face of
the wall, from either the exterior or interior.
The process involves drilling 2" holes in each bay, above and
below the fire-block. This generally means one hole about 3-feet
up the wall and another hole about 6-foot up the wall. These
sets of holes are made every 16" across the wall to access each
bay. The walls are then injected with insulation until full. The
holes are then plugged with a Styrofoam plug, stucco patching is
applied and then each patch is floated to match a standard rough
stucco texture.
We can drill from either the interior OR exterior of the home.
When working from the interior it is best when the home is
vacant, being remodeled or prepared for exposure to dust.
Because wall insulation can be a bit dusty, most of our work is
done from the exterior.
We provide an exterior stucco patch as part of our process (some
companies do not). The texture we can best match is a standard
rough finish, typical of most homes. Textures such as a raised
Spanish-lace, texture coating or skip-trowel are not finishes we
can match very well. We have contractors we refer to deal with
this. Our patch typical dries in a day and can be primed &
painted soon after. Some homeowners repaint the entire home,
others just color-match the paint and paint each patch.
Interior patching involves using a spackle or joint compound.
The patching generally looks great when finished, but will tend
to shrink and crack as it dries. We only provide a primary
application of patching material, additional patching (not
provided by us) will be required. The final process of patching
involves some sanding, which can also be quite dusty.
We can insulate the walls of a one-story home from either the
interior or exterior, but when it comes to two-story homes, we
generally need to drill the second-story walls from the
interior. The process of drilling holes in stucco involves the
use of a large power drill, it's rather impractical to work
from a conventional ladder. Because of this, we will ask to
drill the second-story from the interior. Sometimes we can work
on balconies, roofs or patio covers. We deal with each situation
on an individual basis.
The attic is by far the most
important area of your home to be insulated. Often people are
insulating their walls exclusively because they are re-painting
or re-finishing the exterior of their homes. We always suggest
they also check their attic to make sure it's adequately
insulated. Quite frequently people assure us they have a full
12-inches of material in their attic, but when we arrive at the
job they have us check the attic and we discover they have
2-3-inches. The reason we mention this is because wall
insulation will help, but if the attic is not done well, your
home will still lose heat in the winter and gain heat in the
summer, a well insulated attic is critical.
Not all wall insulation
processes are the same!
We drill 2-inch
holes for injecting our insulation. Most other companies are
still drilling 1-11/2-inch holes. The larger hole means a more
expensive drill-bit and certainly more time drilling and
patching, so why do we do it? Well, just like the valves inside
your car's engine, a large opening means we can inject
insulation at a thicker rate and with better coverage. This
typiclay means that we can have 30-40% more insulation in a
given space increasing your home's comfort and reducing your
utility costs.
Wall insulation is something we charge based on a price per
square foot. We deduct for windows, doors, fireplaces and other
areas that can not be done. Keeping it simple, we only charge
for the area we're insulating. We drill, fill, plug and patch
the holes. Some people just insulate particular walls, perhaps
the south and west "hot" walls of the house, while most people
insulate the entire exterior perimeter of their home.
When you insulate the exterior walls of your home it's generally
for thermal purposes, to keep the house cooler in the summer and
warmer in the winter. You are creating a thermal barrier between
the inside of your home and the environment outside your home.
When you insulate walls that are between bedrooms or other rooms
of your home, it's primarily for soundproofing (the reduction of
noise between rooms). Because an entire home is either heated or
cooled, it doesn't make sense to insulate interior walls for
thermal purposes.
The Common Wall
The common wall is the wall between your garage and your home.
Sometimes this wall, in older homes, is open-framing and can not
be insulated using our injection process, but most the time the
common wall has drywall, plaster or some material on it. Most
homeowners will insulate this wall. It helps contain heat within
the home during the winter and also serves to block the heat
that develops in the garage from entering the home in the
summer. Arguably, the common wall may not make as much a
difference as the other exterior walls in your home.
Additionally, sometimes there is cabinetry or other obstructions
in the way, each homeowner just has to decide for themselves if
they want this section of wall done.
Another problem we sometimes run into is when walls already have
existing insulation in them. No matter how thin the existing
insulation, we cannot inject more insulation into a wall that
already has some existing insulation in it. We generally need at
least 3" of depth to inject our insulation. Even if your
existing insulation is light & fluffy, we cannot inject more.
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