Weatherization- More than Comfort, Safety, and Saving Money

Sherry Cuthbertson is a recent weatherization client in La Plata County. She is a single woman who has health issues that prevent her from being employed. She read in the local paper and was also told by her social worker about the Weatherization Assistance Program. She made a call to 4CORE and was approved to have her home weatherized. It took about one month from her initial contact (she was out of town) for the work to be initiated. She described the service as being “really fast!” between the first evaluations, repairs commencing the following week, and job completion in two and a half days.

Sherry resides in an older mobile home which is in overall good condition; however, upon the initial audit, it had many areas in need of improvement, which the weatherization crew could provide. The roof had been replaced 2 years ago but the leaks had compromised the indoor ceiling, and there were indoor air quality issues caused by the hot water vent pipe that was not connected properly. “It was a miracle they came”, she stated. Sherry has been on supplemental oxygen for a year and a half due to health concerns, and she did not have a carbon monoxide detector or a functional smoke alarm. There was evidence of carbon monoxide leaking from her furnace, and the weatherization crew rectified the situation.

Sherry’s natural gas forced air furnace was replaced with a more energy efficient one, and both her water heater and furnace were repaired with emphasis on proper venting and safety provisions. The ceiling was structurally re-supported and insulating “burrito” blankets (pictured above) were placed in her crawlspace next to the skirting to insulate the home from convective air loss. “I know my ceiling is not going to fail, and I think the “burritos” will really help with insulation,” Sherry stated. She said the crew explained every step fully, and admitted the roof was a real challenge. “They were so nice!” She was very pleased that the crew completed their job while leaving her home vacuumed, clean, and in the original condition as when they began the work.

Sherry has recommended the service to others. “The crew is working on a friend’s house now. This was nothing but a blessing. It made me feel so humble. It was a pleasant experience, and they were kind. I was so pleased, and I would recommend this to everyone!” She does not know yet what a difference these services will make in her utility bills, but she is hoping for a warmer winter and is very grateful. “They even asked if I wanted them to repaint!” Although she is struggling to get by, she described the free weatherization as “a little ray of sunshine” coming in to her life.

Weatherization provides protection of a building from the elements and helps reduce energy consumption while optimizing energy efficiency. Building energy usage in the United States contributes greatly to air pollutants and energy waste. The US Department of Energy (DOE) Weatherization Assistance Program (WAP), created in 1976, provides assistance to low income families to reduce their home’s energy usage and improve their comfort level and safety. Four Corner’s Office for Resource Efficiency (4CORE) is the WAP source for the five county area  in Southwest Colorado. Not only does this assist our residents by improving their health and safety, it also helps reduce our country’s dependence on foreign oil, and  ultimately, air pollution.


About the Author:

Beverly McAllister has volunteered and worked for 4CORE since May 2010, as an Intern for both the Office and the Weatherization Services. After having been a resident of the region for 30 years and raising her three children here, she considers it her home. Her interests include skiing, camping, music, and many artistic pursuits.

Your House: A Machine for Living

Since starting as an intern at 4CORE on January 4^th I have been on a steep learning curve in the weatherization program. I have been exposed to a wide variety of tasks and gaining on the job training in a number of different aspects of the program. I am gradually finding my niche, and feeling like a member of the 4CORE team with something to contribute.

The part of the weatherization program that I find most fascinating are the investigations of client’s homes. Over the years I have owned several different houses, but I really didn’t understand how the different systems of a house, such as heating, hot water, insulation, the flow of air and moisture (to identify just a few) all interact to form one big system that affects your comfort, health, and energy use. The first thing 4CORE does when weatherizing a home is to investigate all the systems of the house, looking for ways to improve its efficiency. This investigation is called the ‘home energy audit’. If you think of your house as a machine for living and the different systems of the house as its parts, the energy audit is the diagnostic tool used to identify the inefficient and unsafe parts.

An example of an unhealthy condition that is caused by the interaction of the house systems is something called back-drafting. Back-drafting is when combustion exhaust is pulled back into the living area of the house instead of venting up the chimney, resulting in pollution of indoor air. There are many unhealthy gases in combustion exhaust but the gas we are most concerned with is carbon monoxide. Carbon monoxide or CO, is a colorless, odorless gas that can cause sickness or death.

When a furnace starts running, it takes the chimney five minutes or more to heat up enough to start a draft, and small amounts of combustion gas may enter the living space. This temporary back-drafting is called spillage. The type of back-drafting we are more concerned with is continuous, and can be caused by the interaction of other exhaust air systems in a house. In houses with a mechanical room that has the furnace and the water heater next to each other, the stronger combustion of the furnace can potentially pull exhaust fumes out of the water heater vent, creating unhealthy levels of CO.

Another situation is when several exhaust air appliances are operating at the same time and create enough air suction in the house to draw furnace exhaust into the living area. Let’s take a house where a fire place is burning, the hot water heater is operating, the gas clothes dryer is on, and the range exhaust fan is running. All these systems are sucking air out of the house and up the vents. In a case like that there is potential for back-drafting of the furnace combustion exhaust and CO accumulation. It is these types of “worst case scenarios” that energy auditors test for, and correct if necessary.

As a footnote, it is a good idea to install combination smoke and carbon monoxide alarms in bedrooms and hallways.

Learn more about how your house works and ways to make it more energy efficient: check out the book Cut Your Energy Bill Now (150 Smart Ways To Save You Money & Make Your Home More Comfortable & Green), by Bruce Harley, 2008.

About the Author:

Tom Zajicek is interning for 4CORE through the Rocky Mountain Senior Employment in Community Program. His interest in green building and energy efficiency lead him to choose 4CORE for an internship. He is presently getting training in weatherization, including energy audits and inspections. In addition he is working on client utility data, and developing a respiratory safety program.

Tom moved to Durango two years ago from Ithaca, New York. His varied previous experience includes home building, field biology, outdoor education, and industrial roped access inspection. When not working Tom is off to the mountains, canyons and deserts of the four corners area.