A Better Blog

ICF CONSTRUCTION: GOOD FOR YOUR HEALTH

When weighing the many benefits of insulated concrete form (ICF) homes, the primary focus tends to be on the more tangible financial aspects resulting from such energy-efficient construction.  While that is extremely noteworthy, another feature not to be discounted is the vast improvement in quality-of-life.  We spend approximately 90% of our time indoors, therefore the substances with which we surround ourselves should be given a great deal of consideration. The healthier living environment created as a result of ICF construction is noticeably significant, especially to those who suffer from allergies, asthma, and other respiratory issues, as all of those issues are alleviated.

ICF materials are the most hypo-allergenic available.  A common misconception regarding ICF blocks is that they are made of Styrofoam, though they are actually made from expanded polystyrene, which contains no chlorofluorocarbons (CFC’s).  No organic materials are used, therefore it does not decay, degrade, or off-gas any volatile organic compounds (VOC’s). Concrete is composed of recycled materials and natural minerals off-putting the least amount of VOC’s when compared to other construction resources.  Mold and mildew can only exist and grow on organic matter.  Given that ICF blocks contain no organic compounds, it is impossible for any mold or mildew to cultivate on such structures.  In and of itself, ICF construction promotes the healthiest indoor air quality, making it the most favorable alternative to traditional wood buildings.

In addition to its very makeup, ICF construction is the most effective in preventing outdoor allergens from penetrating the walls and getting trapped indoors.  The solid, poured concrete walls form an extremely tight seal, and the electronic recovery vents (ERV’s) installed allow a low-velocity flow of fresh air inside while exhausting an equal amount of stale air.  The amount of airflow is controlled, and pollen and various other irritants are filtered out, a feature particularly appreciated during summertime, thus creating a much more pleasant, breathable living space.   Even time spent dusting is greatly reduced!

While the bottom line is generally the first concern when even considering building a new home, quality of life on a daily basis should also be a top priority.  The advantages of ICF are unparalleled by any other construction methods and positively affect nearly every aspect of living, from physical health and safety to saving money through energy-efficiency.

Posted in 2011 | Tagged , , , | Comments Off

THANK YOU!

For the last ten years, we have attempted to keep our clients and loyal readers of our newsletters informed of the latest trends and information in the energy efficient market.  This month, I have decided to write a different article after attending the funeral of a friend.  I realized we have a tendency to take many things for granted, such as life itself.  Not only our lives, but those of other people including our spouses, family, friends, coworkers, and the smiling faces at the local Starbucks.  However, I realized it does not stop with people and possessions.  For instance, I consistently take my monthly utility bill for granted as well.  When I first started paying the utility bills on my ICF home, I would smile and be glad I wasn’t paying twice as much as my neighbors.  Since I built my house ten years ago, I went back to review my utility bills and realized I have saved over $30,000 in expenses, without accounting for inflation, interest earned, or interest not paid.  Amortized at 10% this would be $47,812.  This is a substantial amount which has allowed my family to take vacations and purchase items which normally we would not have been able to afford.

In the future, energy will become more of a luxury than ever before.  The cost of energy will continue to rise faster than wages and inflation.  The U.S. will see an electrical usage growth of approx. 2% each year.  Rapidly expanding countries, such as China, will triple their current usage over the next 15 years.  In the U.S. alone, this means we will be utilizing 50% more electricity in 2025 than in 2011.  Half of the electricity generated in America comes from coal plants, however, their pollutants can be extremely harmful.  Approximately 20% of electricity comes from nuclear plants, which create hazardous waste.  After Japan’s tragedy this year, we are all more aware than ever of the dangerous amount of unknowns involved in nuclear power.  In order to keep up with world-wide population growth and ensure a cleaner world in the future, energy must be harnessed from natural resources.  Furthermore, since we will continue to create products for our personal comfort which utilize electricity, we must analyze how to reduce our usage without eliminating our comfort and convenience.

The homes we build today are at least 50% more energy efficient than we were building ten years ago.  As our staff is well aware, we are a triple impact company.  Our homes actually have a financial, social and environmental impact.  We reduce expenses and energy consumption for our homeowners, infrastructure expenses for society and we have a positive effect on the environment.  We look forward to advances to increase our progress over the next ten years.

I would like to thank all of our past and current clients for forcing us to look into the future and allowing us to reduce your carbon footprint. Our clients continue to be well studied and very knowledgeable on energy efficiency.  I would also like to suggest, as energy bills continue to rapidly rise, not to take your monthly  utility bills for granted.  Be thankful you pay considerably less than your neighbors.

I appreciate all of you and thank you for your assistance in our company’s growth!

Tim J. Hawbaker

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WIRING FOR THE FUTURE

Imagine the control of your home being at your fingertips.  One click of a switch turns on bright task lighting, perfect for preparing a meal for guests. And the moment the doorbell rings and the guests arrive, a second click sets a more dramatic, softly lit scene for entertaining.

Going to be out for the day? Let your home know. Click a single switch to set the air conditioning to eco-mode and switch off power to outlets connected to energy-draining devices such as TVs or game systems.

Wake up in the middle of the night and, with the click of a switch, activate a subdued lighting pathway from your master bedroom to your child’s room; or arrive home at night and, with the click of another switch, light a pathway from your garage to your front door.

Not only are these scenarios possible, they are a reality for many homeowners!  Verve Living Systems provides a plethora of wireless options with its whole house lighting control system.  Just program the wireless switch with the 10-channel controller to activate scenes based on your preferences and, because each switch uses energy-harvesting radio frequency technology, the simple act of turning a switch generates enough energy to transmit radio signals across distances as great as 300 feet.

Wireless switches allow for seemingly endless flexibility and can be placed anywhere you want. Mounted on a wall. Sitting on a bedside table. Even in the car. And, because they are wireless, you can move the switches easily without rewiring or damaging walls.  Every light in the house is now dimmable and every switch a dimmer!  Dimming lights can save a surprising amount of energy, and occupancy sensors can help save energy by switching off lights and adjusting the temperature automatically if a room is unoccupied for a set amount of time.  Switched outlets also make it easy to turn off energy-draining “phantom” loads like TVs, stereos and DVDs in standby mode.

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Staving Off The Flames

These ICF homes in a San Diego neighborhood survived a wildfire virtually untouched!

2011 seems to be the year mother nature is showing us that she is still in control.  Tornadoes have destroyed entire communities in states from Alabama to Missouri.  Iowa is currently struggling with relentless flood waters and Arizona is desperately trying to contain three wildfires, one which is the largest in the state’s history and has burned more than 519,000 acres to date.  The homes and buildings in the unfortunate pathways are doomed to go up in flames, leaving many to wonder if there is anything that may be done to minimize the damage or even save the structures.

The best defense is a good offense.  These wildfires all started with a single flame that spread, and while those that occur in nature are less likely to be prevented, there are measures that can be taken with those that are man-made.  The most effective, proven way to save your home from going up in smoke and risking the lives of your family is to have an ICF (insulated concrete forms) house.  Whether the fire starts inside your home or is sparked elsewhere,   these structures have withstood fiery conditions time and time again.  Fire wall tests have shown them to withstand 2000 degrees for up to four hours and still be structurally sound, allowing them to be the only structures left standing in areas where fires have swept through neighborhoods.  Should an interior fire start, it is quickly snuffed out due to its inability to draw air through the walls to feed the flames thanks to a completely sealed envelope.  The benefits of ICF homes extend far beyond this one aspect, but none exceed the importance of having the total peace-of-mind that your family and prized possessions are the safest they can possibly be in such an event.

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Can Your Home Be Too Airtight?

Newspaper articles and trade journals dramatizing indoor air quality problems in new airtight houses have begun to alarm many homeowners.  The question on many minds these days is, “how tight should my house be?” After more than two decades of sealing up houses to make them more energy efficient, many people are wondering whether we have gone too far. The answer may be that we have not gone far enough.

It used to be that builders rarely worried about the air tightness level of the houses they built.

By leaving houses with a significant level of air leakage, builders were actually incorporating a passive ventilation system into every house.  Unfortunately, the “build it leaky” approach has a number of serious drawbacks.

The most sensible approach is to build the house as airtight as possible and install mechanical ventilation to bring in a controlled amount of fresh air and to remove moisture and other pollutants.

This begs the question “why go to all the expense and trouble to build a tight house if it then has to be ventilated?”  The answer is simple – this approach puts the homeowner in control of the house instead of depending on random holes in the building.

Controlled ventilation, where the air change per hour (ACH) drops below 3 ACH is recommended by the proposed 2012 IECC (International Energy Conservation Code) for this area’s climate zone.  Testing is the only way to actually know the tightness of the house.  The most common testing method is with a “blower door,” a large calibrated fan that can be used to measure the tightness of a home.  With the adoption of the 2012 codes, blower door testing will then become mandatory to verify compliance.

Some of the benefits of an airtight home include:

  • smaller HVAC system required for heating/cooling
  • reduced physical ailments including allergies, asthma, sinus infections, coughing, frequent sneezing, shortness of breath, irritation of the eyes, nose, or throat, digestive problems, etc.
  • lower utility bills
  • quiet, more comfortable living space
  • virtually eliminating transference of dust particles-no dusting!

How, then, is air tightness attained? By using Insulated Concrete Forms (ICF) for the outer structure of the house and energy-efficient windows it is easy to make the house airtight.

For more information on building an airtight home, please contact us at (615) 833-9171, come see our showroom at: 5511 Edmondson Pike, Nashville, TN 37211, or visit our website www.iwantabetterhouse.com.

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