GIMBBYs aren’t worried about seeing wind turbines or transmission lines from their backyards as are the NIMBYs. It’s the guy next store that they don’t want to see. And GIMBBYs number many among us. A recent study conducted for the National Association of Realtors found privacy to be very important in selecting a home for nearly half of the Americans surveyed.

What’s this got to with energy efficiency? To gain privacy we move to homes that are further from work, schools and stores, suburban and rural outposts that offer us bigger backyards. By way of disclosure, before I go any further let me confess that I am a GIMBBY. I’d probably give up my lights, heat and air conditioning before my five acres of trees shielding me from others.

The Environmental Protection Agency calls big-backyard neighborhoods like mine “automobile dependent locations” and contrasts them with “transit-oriented” neighborhoods, places where you can hop a bus or easily walk to regular destinations. The agency recently looked at which kind of neighborhood uses the most British Thermal Units (BTUs), taking into account size and type of house, its energy efficiency, and vehicle use of its occupants. This is known asLocation Efficiency.

The EPA’s findings indicate that location really is everything. Transit-oriented neighborhoods offered up more energy savings whether the houses were single family detached, single family attached or multi-family. This is significant because homes that share walls typically require less energy for heating and cooling. But that advantage was not significant enough to overcome driving distance for the big-backyard neighborhoods. Travel requirements pretty much trumped all, indicating that a home’s location is “a major variable for household energy consumption,” the EPA said.

Even though she’s a very technically-minded person (she works on nuclear non-proliferation and carbon sequestration issues), but, like most people, she doesn’t know what she should expect when it comes to an assessment of her home’s energy efficiency. A good home energy audit these days will cost from a few hundred dollars to over $1000, depending on the size and complexity of the house, so homeowners of course want to know what they’re going to get for that investment.

Well, let’s dive in and take a look.

Who’s Qualified?

Although it may be hard to find someone with one of these certifications in every part of the country, you should look for a home energy auditor who’s certified as either a BPI (the Building Performance Institute) Building Analyst or a RESNET certified HERS Rater. Last year I wrote an article about these being the main certifications to look for, and it’s still the case.

What Should They Do?

1. Combustion Safety
2. Building Envelope
3. HVAC
4. Moisture Problems
5. Detailed Report
6. Extras

The first thing to know is that there are different levels of assessment. For simplicity, I’ll focus mainly on the comprehensive energy audit, but a seasoned home energy auditor can tell a lot just by walking through the house. The key is that it’s got to be someone who’s already done plenty of comprehensive audits and knows what to look for.

1. Combustion Safety

The motto of BPI is, “First, do no harm…to life, limb or property.” If your house has any combustion appliances in it, assessing their safety and suitability should be the first thing the energy auditor does. Often, a home energy auditor is the only person who looks at your house as a system and can tell you if there might be problems such as backdrafting that could put carbon monoxide in your home. A good combustion safety test will include checking for spillage of natural draft combustion appliances, the content of the exhaust gases in furnaces and water heaters, and worst case depressurization of the combustion appliance zone (CAZ).

2. Building Envelope

The building envelope is the boundary between conditioned and unconditioned spaces. It has two key components: the air barrier and the insulation, which need to go completely around the house and be touching each other. The home energy auditor you choose check all three parts of the building envelope:

• Integrity of the air barrier
• Adequacy of insulation levels
• Alignment of insulation with air barrier

When insulation is installed without an air barrier, it won’t do its job. Most types of insulation do not stop air leakage, so one thing the energy auditor will do is look for proper alignment of insulation and air barrier throughout the house.

The energy auditor will also look for proper levels of insulation (wherever visible) and check for the existence of insulation behind walls. They’ll check the integrity of the air barrier in two ways: a visual inspection and a Blower Door test. The former tells where the big air leaks are, and the latter quantifies the total amount of air leakage in the house. The auditor can use the Blower Door as a diagnostic tool to locate air leaks, too.

3. HVAC

Most homes use more energy for heating and cooling than for anything else, so assessing how well the heating and cooling systems are doing is vital. One thing that a home energy auditor will do that your HVAC contractor may not, though, is look at the quality of the distribution system. It’s one thing to heat or cool the air with high efficiency equipment, but if you put that high SEER air conditioner or high efficiency furnace on a crappy duct system, the money spent on the equipment is wasted.

The energy auditor should look at both the equipment and the distribution system. If it’s a forced air distribution system, they probably will also measure the amount of duct leakage in each system, especially is the ducts are outside the building envelope. Unless the auditor is also an HVAC technician, they probably won’t give you a full assessment of the equipment, but they can tell you, based on the age of the equipment, how soon you might need to replace it.

4. Moisture Problems

There are three things that cause buildings to fail more often than anything else:

• rain
• moisture
• condensation

In other words, water causes a lot of problems. Energy auditors often look for moisture problems in your home and will help find the source so you can eliminate the problem. Most of the moisture problems originate from drainage issues on the outside of the house and should be solved on the outside (e.g.,by fixing gutters that dump water at the foundation). Vented crawl spaces are a category unto themselves, and the good news is that we know how to fix themnow.

5. Detailed Report

Once the home energy auditor has finished with the onsite assessment of the house, which generally takes three to six hours, they’ll write up a report for the homeowners. Some companies have their templates set up and portable printers in their trucks and can deliver the report before they ever leave your house. Most, I believe, will do the report back at their office and then schedule an appointment to deliver it.

The report should cover all the items above (if applicable). It should give the results of the inspections and testing and put them in perspective by comparing what the auditor found in your house to what’s required by code (in the case of insulation mainly). In the case of infiltration and duct leakage, the comparison is usually to a scale showing what’s good and what’s bad. With the former, they may also tell you what size hole you have in your house.

Finally, with a good home energy audit report, you should get a scope of work that prioritizes the improvements you could make based on their cost effectiveness. Air sealing and duct sealing are usually at the top of the list of energy improvements, though combustion safety issues trump energy efficiency.

The report may also list any rebates and tax incentives that you can qualify for by improving the energy efficiency of your home. These vary by location, and not every home energy auditor can qualify you for every rebate. For example, Georgia Power has a generous rebate program, but you have to use one of the approved assessment contractors to qualify for them. To find out what’s available in your area, you can check the DSIRE or Tax Incentive Assistance Project websites.

6. Extras

Some other items that your home energy audit may include are a look at your home’s:

• Water efficiency
• Lights and appliances
• Dryer vent
• Energy bills
• Financing options

Some energy audit companies will check the flow rates of your faucets, toilets, and shower heads and make recommendations for improvement. Some check your lights and appliances and can even measure energy use of items like refrigerators with devices like the Kill-A-Watt or the WattsUp. I wrote about the dangers of underperforming dryer vents a while back and gave somerecommendations for improvement there. Some energy auditors will check that as well.

When I was doing energy audits (or home performance assessments, as I called them), I included an analysis of the homeowners’ energy bills. If they could give me 12 months of their bills, I could plug it into a spreadsheet I’d put together and calculate their energy intensity, the energy use per square foot of conditioned floor area per year.

If your intention is to use a home energy audit as a guide to improving your home, then hiring an auditor who can help you with financing options could be a big plus, too. Perhaps the best one available, in my opinion, is the Energy Efficient Mortgage, which you can use either for a purchase or a refinance.

Choosing a Home Energy Auditor

So there you have it. You can use the above information as a guide to choosing a home energy auditor and making sure you get the most bang for your buck. As with any other contractors you bring into your home, you should also ask for references and check them. I’m sure the comments below will have even more good advice.

Two things to be wary of are the ‘free energy audit’ (usually offered by companies who just want to get into your house to sell you their product or service) and the yahoo who bought an infrared camera and thinks it can find everything. Use the guidelines above to choose a home energy auditor, and you’ll get a much better audit.

If you’re in the Southeast, check our list of certified home energy raters to see if there’s one in your area. Many of them have both the HERS Rater and BPI Building Analyst certifications.

“Just like you to know I’m glad you aren’t in charge. If you stood between me and my freedoms of choice or others you wouldn’t be standing there long.”

Turns out he’d read two of the articles I wrote last week - The McMansion Penalty in ENERGY STAR Version 3 and Kick the Can! – No Recessed Lights in the Building Envelope. Looking at this fellow’s website, I found that he does nice remodeling work, focusing on kitchens and baths.

But why did he feel the need to send me that message? I reread the articles and nowhere did I call for any kind of government intervention to ban can lights or large houses. The McMansion article was about a voluntary program that aims to foster increasing home energy efficiency. The latter was about the problems with can lights from a building science perspective.

Freedom isn’t a black-or-white issue, though, and it doesn’t mean that we’re all free to do whatever we want. We’re not free to walk into someone’s house and help ourselves to their belongings, for example. We’re not free to yell ‘Fire’ in a crowded auditorium. We’re increasingly less free to smoke in buildings. Heck, in many neighborhoods, we’re not even free to use the color of paint we want on our house.

So what exactly is the issue with this reader? Does he send such emails to homeowners’ associations and governing bodies, too? Or are building science, green building programs, and building codes especially incompatible with freedom? Let’s explore that last question further, splitting it into three separate questions.

Is building science incompatible with freedom?

Science is science. Anyone who works on buildings is free to ignore the principles of building science to the extent that they can get away with it, but someone’s going to pay the price. Maybe it’ll be the occupants, who suffer with comfort problems, poor indoor air quality, frequent maintenance, or high energy bills. Maybe it’ll be the remodeler or builder who has to face constant callbacks.

That’s the point I was trying to make with my article on can lights. To the extent that program guidelines or building codes allow can lights, a remodeler or builder can use them. If they’re part of the building envelope, however, and create a problem with the air barrier or insulation, the contractor is giving their client an inferior product. That’s just building science.

Are green building programs incompatible with freedom?

This one’s also a no-brainer. If it’s a voluntary program, how can it interfere with anyone’s freedom? (Well, OK, there’s Henry Gifford and his lawsuit against the USGBC and its LEED program, but I doubt the courts will let it go far.) If anyone has a problem with the new large home penalty in Version 3 of the ENERGY STAR new homes program, they’re perfectly free not to participate. (Although ENERGY STAR is an energy efficiency, not green building, program, I’m lumping them all together here.)

Are building codes incompatible with freedom?

OK, the first two questions were easy, but this is the one, I believe, where the real friction is happening. Building codes contain a lot of prescriptive requirements, mostly to ensure safety and structural stability. Although some contractors may complain about  the details or enforcement of some requirements, I think most people understand the need for these measures.

In recent years, though, energycodes have been gaining a toehold and are even starting to be enforced. For example, we now have a new energy code in Georgiathat requires all homes to meet thresholds for infiltration rates and duct leakage. This requires someone to test the house with a Blower Door and duct tester. Is that an example of the state standing between builders and their freedom of choice? Some argue that it is and that builders should be allowed to build leaky, inefficient, energy hog houses if they want to.

In my opinion, though, we have a serious energy problem, globally and in the US, and energy codes are one way to help us meet the challenges. With thepeak of global oil production (peak oil) being upon us, the price of oil is rising. This is leading to the electrification of transportation, which puts pressure on the electric grid and causes prices to rise there, too. Efficient houses are going to be a necessity, whether we like it or not.

If we’re going to live in a civilized society, we always have to consider not only the needs and rights of others around us, but also the bigger picture of what’s happening globally. Am I saying we all need to live in yurts and ride bicycles? No. But we are facing some serious problems that demand a new way of doing things. Freedom demands a certain amount of responsibility, too.

What do you think? Do the demands of building science, green building programs, or building codes infringe on our freedom of choice?

Your ability to communicate effectively with the unique personalities of your customers affects your project’s success. There are several personality typing systems to explore. Check out the CAP Model at Speechmastery to learn about the 4 types: The Controller, The Analyst, The Supporter and The Promoter. Identifying your client’s personality type will help you better understand what motivates their interest. For instance, engineers are typically ‘analyst types’ who will ask infinite questions. They love gathering information before acting. So with an analyst type you want to be as prepared as possible to provide answers, or know where to find them. For instance, if you are designing or building an energy efficient home, you want to be well-versed on the latest information and ready for their questions.

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Susan Kramer-Pope Communication Practices that Make a Difference

We each have a reaction to uncertainty. Some find it exhilarating. Some find it terrifying. In all cases there is an element of stress. If you are a custom builder, you are intimately involved with managing stress-your own as well as the effects of your customer’s stress upon you.

As the builder you come to the table with years of experience in a field your client usually knows little or nothing about. Without addressing this disparity in the way you communicate, you are setting yourself up for almost certain misunderstandings throughout the life of the project.

Consider wearing the hat of an “educator” when interacting with your customer. Educate them about how you do business. When it comes to the contract, create a summary sheet with bullet-points of the most critical pieces that you need to stress, and make sure to use stories from your experience as examples.

Educate them about why you prefer the subcontractors that you use. Educate them on the implications of delayed decision making on the project time-line, their budget and your business, especially if you have other jobs in the pipeline ready to start.

Continue to be an educator to minimize misunderstanding all the way through the project. The worst thing you can do is assume the customer knows your business! If you are stumped as to what topics to cover in this education effort, look no further than the communication breakdowns in your past and ask yourself, ‘What did I learn from that situation that will make a difference for me and this new client?”

This stance may seem elementary to some or bothersome to others. But the question remains the same. What are you doing to create mutual understanding and reduce uncertainty throughout your projects? Your reputation depends on it.