Don’t Miss the Metro Denver Green Homes Tour on Saturday, Oct. 1st

If, like many people, you have back-burnered your plans to buy a new home, now might be a good time to think about updating your current home. Making improvements that reduce the cost of ownership might be pretty appealing, too, and that’s what you’ll accomplish by adding solar panels, improving insulation, and maybe getting rid of natural gas or propane. 

This Saturday, October 1st, is your opportunity to visit a dozen metro area homes which have done just that. That’s because the first Saturday in October is the date of the annual Metro Denver Green Homes Tour. I’m on the steering committee for the tour, and I can assure you that you’ll learn a lot from this year’s selections.

The event runs from 9 a.m. to 7 p.m. and includes a “green expo” at the American Mountaineering Center (AMC) at 710 10th Street in downtown Golden.

It’s a self-guided tour. You pay $10 in person at the AMC or at  www.MetroDenverGreenHomesTour.org. If you register online, you can pick up the book describing each home plus a map to find them either at the AMC on Saturday morning or on Friday, Sept. 30th between 10 a.m. and 6 p.m. at the office of Golden Real Estate, 1214 Washington Ave., also in downtown Golden.

The homes themselves are open only until 4 p.m., after which you might want to visit the Electric Vehicle Roundup in the parking lot of The Net Zero Store (Golden Real Estate’s former office) at 17695 S. Golden Road. That event runs from 2 to 6 p.m. (See article below.)

You’ll also want to visit the “Growing Dome” at 509 9th Street, a short walk from the AMC, between 3 and 5 p.m.  There will be a “tiny home” in the AMC parking lot all day for you to visit, too.

All of that is followed by a Reception and Green Expo inside the AMC from 5 to 7 p.m. At the expo you’ll be able to visit with exhibitors who sell and install some of the sustainable upgrades which you learned about during the tour, while enjoying complimentary appetizers, local beverages and live music.

If you’d like to carpool to each of the homes in a Tesla or other electric vehicle, inquire at the AMC between 9 and 10 a.m. and they may be able to set that up for you, thanks to volunteers from the Denver Tesla Club and the Denver Electric Vehicle Council.

Leading up to Saturday’s tour, we have created a series of free lectures, the last of which is this evening, Thursday, Sept. 29th, at Jefferson Unitarian Church, starting at 7 p.m.  The speaker is Conor Merrigan, who is Sustainability Program Manager at Spirit, an environmental consulting firm. His topic is “Scaling Up Green Homes to Green Neighborhoods.”

My own contribution to the tour has been to shoot narrated video tours of each home on the tour.  I haven’t been able to shoot all of them yet, but I’ve done several of them, and you can find them as well as the video tours from prior years at www.NewEnergyColorado.com.

I’ve been committed to promoting sustainability and net zero home construction for as long as I can remember, but each and every year I find that I learn something I didn’t know — a new technology or new use of an older technology — and I get to capture what I learn on those videos so you can learn about them.

The broker associates at Golden Real Estate and I are among the most knowledgeable real estate professionals you will find when it comes to buying and selling sustainable homes as well as making a home you buy more sustainable, so feel free to contact any of us for your real estate needs. We look forward to serving you!

Crested Butte Bans Natural Gas in New Construction — A New Statewide Trend?

Given our commitment to addressing climate change, one of my favorite email newsletters is “Big Pivots,” written by Allen Best of Arvada, The mission of his non-profit is to document, understand and educate about the changes made necessary by climate change.

Among those changes is the transition from fossil-fuel heating of homes and water using natural gas and propane now that electric heat pump units are practical and affordable.

The latest Big Pivots email newsletter (which you can subscribe to at bigpivots.com) was about Crested Butte’s recent decision to outlaw natural gas in new construction. Rather than rewrite what Allen wrote, here is his article with some minor edits:

By ALLEN BEST

Crested Butte, a one-time coal mining town, has now turned its back on natural gas. Town councilors unanimously agreed that any new building erected on the 60 vacant lots cannot be served by gas. Major remodels must be electric-ready. It’s Colorado’s first natural gas ban, although 80 other jurisdictions around the country have taken similar measures.

“There was a lot of talk at council about it being a bold decision, but I don’t see it that way,” said Crested Butte Mayor Ian Billick. “Not only is it what we need to do, but we have all the tools to do it cost effectively.”

Billick arrived at Crested Butte several decades ago as a biologist at the nearby Rocky Mountain Biological Laboratory. Many experiments there have focused on the effects of warming temperatures on existing plants. One experiment involving year-round heat lamps specifically foretells a shift from the showy wildflowers for which Crested Butte is famous to an ecosystem dominated by sagebrush.

Temperatures continue to creep higher, but at more than 8,900 feet in elevation, Crested Butte still has chilly winters. The overnight temperature during January averages 6 below.

The takeaway here is that if Crested Butte is comfortable with the replacement technologies for natural gas, most other places in Colorado should be, too. Instead, builders are still tethering tens of thousands of homes and other new buildings each year to natural gas pipelines.

Denver and Boulder have taken steps to push alternatives. Here and there individual action has occurred. In Westminster, John Avenson in 2017 ordered his natural gas meter removed after maximizing the passive solar potential of his house. (YouTube video tour of John’s home.) In Arvada, Norbert Klebl developed 30 homes without natural gas in a project called GEOS. In Basalt, two affordable housing complexes have been built without natural gas. An all-electric hotel is under construction in Snowmass. North Vista Highlands is slowly taking shape in Pueblo. In Fort Collins, plans have been drawn up for Montava, a  500-unit project.

We have been pivoting slowly, but the transition is accelerating.

Granted, the generation of electricity still causes atmospheric pollution. Emissions will dramatically drop by 2030, however, as Colorado’s utilities close nine of today’s 10 coal-burning units.

Colorado legislators in 2021 passed several laws that collectively seek to squeeze emissions from our buildings. The laws reflect the state’s political makeup. Colorado may be dominated by Democrats, but it’s still a purplish state. In other words, don’t expect a wave of Crested Butte-type mandates such as occurred in California beginning in 2019. We walk on a different balancing beam.

Most important among Colorado’s legislative squeezes is Senate Bill 21-264, which requires Colorado’s four regulated natural gas utilities to incrementally reduce emissions.

The law identifies several pathways. They can, for example, help customers improve efficiency of buildings, so buildings need less gas to provide comfort. They can augment the methane obtained by drilling with methane diverted from sewage plants, feedlots and other sources. The first of their plans will be filed with state regulators in 2023. The bottom line is that the gas companies will have to adjust their business models.

The Colorado Public Utilities Commission has now set about creating rules for evaluating clean-heat plans. In filings beginning last December, real estate agents, home builders and even some municipalities have argued that converting from natural gas will add costs. That was the same message at recent meetings in Montrose and Grand Junction. Their message was simple: Don’t change.

In metro Denver’s more affluent northwest suburbs, Christine Brinker of the Southwest Energy Efficiency Project reports a draft policy would give builders a choice between either all-electric or natural gas with extra energy efficiency.

Unless a way can be found to cost-effectively sequester carbon emissions, natural gas will slowly be phased out in coming decades. Ironically, the arrival of natural gas was one reason that coal mining ended in Crested Butte in 1952 after a seven-decade run.

The Net Zero Store Is Open for Business!  

     Since vacating Golden Real Estate’s original home at 17695 S. Golden Road (across from Taco Bell), we have converted that net zero energy location into — what else? — The Net Zero Energy Store, and it is now open for business weekdays. The concept is simple — to sell products and services that make your home more energy efficient — either step by step, or all the way to being “net zero energy.”

    A net zero energy home is all-electric (no natural gas heating, cooking, grilling or fireplace), has its own solar panels to generate electricity from the sun, and optimizes the use of electricity through super-insulation, heat pump technology, induction ranges, high-performance windows, energy recovery ventilators (ERVs) and other widely available technology.

    The store, which has many such products on display, is manned weekdays by the sales team of Helio Home, Inc., which sells and installs all those products. Stop by to speak with a sales person who can talk knowledgeably about what’s possible in your own home.  They also have a relationship with a credit union (Clean Energy Credit Union) which lends money solely for sustainability projects and the purchase of used or new electric cars.

Arvada City Council Buys Into a Developer’s False Narrative That New Homes Must Have Natural Gas  

It’s sad to see elected officials not taking the time to learn about new technology, especially technology that contributes to abating the effects of climate change.

Such is the story unfolding in the city of Arvada, where the city council — historically super friendly to developers — has bought into a false narrative by a developer/builder team that all-electric homes are not affordable or desired by today’s home buyers.

This is happening despite the fact that Arvada is itself home to a well known model of affordable all-electric homes in the Geos Community located west of Indiana Street and south of 72nd Avenue.

Geos Neighborhood

The Geos Community was partially built out several years ago without any natural gas lines. Home heating is by geothermal and air source heat pumps. Cooking is on induction cooktops. Heat pump water heaters provide the domestic hot water. Solar panels on each home provide all the electricity needed for these and other needs, making all 26 current homes “net zero energy.”

Before the Geos Community could be fully built out, its original developer was forced into selling due to a divorce settlement. Otherwise the remaining 250 homes — a mix of townhomes and single family homes — would have been built to the same net zero standard.  The new developer had promised to do so, as described in a Nov. 17, 2020, post on MileHighCRE.com, but it reneged on that promise and is in the process of installing natural gas lines to the new homes, greatly annoying and angering the owners of the original 26 homes.

The fossil fuel industry duped all of us by promoting methane as a “natural and safe” gas for use in homes. This gas is highly heat-trapping (80-100 times more so than carbon dioxide), prone to explosion and causes many health issues (see Electric4Health.org). During the last decade Colorado added an average of 20,500 residential  gas customers each year. BigPivots.com reports that our state now has 1.8 million residential gas customers. That trend needs to be reversed. There’s no need to keep building home reliant on natural gas.

Geos homeowners appealed to Arvada’s city council to deny the developer a permit for the gas lines, but the city declined to do so. The neighbors, however, are not giving up and have 267 signatures (including my own) on a petition to reverse that decision. The City of Arvada has advised the current Geos residents that this issue is closed.

Arvada should be proud that it is the home of the country’s first “geosolar” community which has, among other honors, been featured several times in the Metro Denver Green Homes Tour. I myself have produced narrated video tours of three Geos homes for that tour, which you can view here, here, and here.

As part of its COP 26 coverage this week in Glasgow, CNN will air a segment on Geos as a home building model to be emulated, essential for addressing climate change.

Our Commitment: Keeping Styrofoam Out of Landfills

One element of Golden Real Estate’s commitment to sustainability is our acceptance of polystyrene in the Styrofoam Corral behind our office on South Golden Road. Perhaps you have wondered what we do with all that Styrofoam.

At least twice every month we fill our truck with what everyone (including us) calls Styrofoam, but that’s a brand name. The generic term is expanded polystyrene foam, or EPS. We take each truckload to Centennial Containers southeast of Peoria Street and I-70. There the material, which is 95% air, is “densified,” compressed into those foot-square bars shown at right, which are then stacked on pallets each weighing over 1,000 pounds. One of our truck loads might make just one of those bars of compressed material! Eventually a semi trailer filled with those pallets is taken to an American company which recycles those bars into new polystyrene or other plastic-based products.

We used to take our loads to Alpine Waste’s recycling facility located northwest of the I-70/I-25 interchange, but they ship their densified polystyrene to China. When China cut down on accepting plastic waste from the United States, we switched to Centennial Containers and have found them easier to work with, too.

Our polystyrene recycling is only one part of Golden Real Estate’s commitment to sustainability which won us our second Sustainability Award from the City of Golden in 2020. Since receiving our first award in 2010, we transitioned our building to Net Zero Energy in 2017 by removing our natural gas meter and installing a heat pump mini-split system to heat and cool our office electrically. Our 20-kW solar photovoltaic system provides all the electricity for powering our office as well as charging our five Tesla vehicles and providing free EV charging to the general public in our parking lot.

Xcel Energy Is Penalizing Small Businesses Which Offer Workplace Charging

Golden Real Estate is justly proud — if I say so myself — of having a Net Zero Energy office, meaning that our solar photovoltaic panels produce all the electricity needed to heat, cool and power our office as well as to the charge the five Teslas owned by our agents and me and offering free EV charging to the general public. (We have four EV charging stations at our office — two for our own use and two for the public.)

Meanwhile, Xcel Energy boasts that it is moving in the direction of 100% renewable energy and facilitating the adoption of electric vehicles. A big part of that is promoting “workplace charging.”

Xcel is right to promote workplace charging over, say, charging stations at retail stores, because cars are parked for up to 8 hours at one’s workplace — long enough to fully charge almost any EV using a standard Level 2 (240V) charging station.

So why is Xcel Energy penalizing small companies like Golden Real Estate which have already installed workplace charging stations for EVs?

As stated above, we generate all the electricity needed at our office on South Golden Road. Until this March, our monthly Xcel bill was under $11 every month — the cost of being connected to Xcel’s electric grid.

But now our Xcel bill is over $300 per month, even though we are still generating all the electricity we use. How can that be?  It’s because one day in March we drew over 30,000 watts of energy during a single 15-minute period, converting us automatically from standard “commercial” service to “demand” service. That means that in addition to the charges for electricity consumption, we are now charged for the highest amount of electricity that we draw during each month.

So our electric bill at Golden Real Estate is now over $300 per month regardless of the amount of actual electricity we consume during any particular month. To put it in numbers, we are charged about $15 per kilowatt for peak demand, and our monthly maximum draw of power is usually about 20 kilowatts.  Thus, we are charged $300 each month even though our net consumption of electricity is zero!

The only way we could draw over 25 kW of electricity at a given time is because we are charging cars at all four charging stations, something Xcel says they want to encourage.

When I communicated my dilemma to Xcel Energy, the response was to tell me that they’re introducing a new EV charging tariff later this summer. Unfortunately, the tariff requires that Xcel install the charging stations and offers nothing to those of us who were early adopters and already have charging stations in place.

Under Xcel’s proposed EV tariff, my penalty would drop to a little over $100 per month. But that’s still a $100 penalty.

The logical solution would be for Xcel to modify its commercial tariff to make the demand threshold 50 or 75 kW instead of 25 kW for forcing small businesses like us into their demand tariffs.

Now some good news.

I made these same arguments during public comments at a May 13th virtual hearing before an administrative law judge (ALJ) adjudicating an Xcel Energy rate case. This Monday, that ALJ published his ruling and cited my own testimony in ordering Xcel to increase its demand threshold to 50 kW.

I had made the same argument a couple years ago during public comments at a regular PUC meeting, but I got no satisfaction at that time, so I wasn’t expecting to be more successful this time, but I was.

Ironically, I had already written this column with no clue that the ruling was about to be handed down. Indeed, this column was uploaded to three Jeffco weekly newspapers Monday morning without this news.

The ALJ’s ruling has a few more steps before it is finalized.  Parties to the case can make final pleas and seek Commission reconsideration, akin to last ditch arguments, but I’m hopeful that my Xcel bill will return to $10.26/month soon.

Golden Real Estate Wins Sustainability Award

Broker/owner Jim Smith and broker associate David Dlugasch pose with the Golden Sustainability Award in front of their two Teslas.

Back in 2010, Golden Real Estate was awarded the “Sustainability Award for Business” from the City of Golden for the brokerage’s solar-powered office. Eleven years later, we have been awarded this recognition a second time because of how much further we have taken our passion for sustainability.

Back in 2010 we had a 5kW solar array on our roof — enough to power our office, but little else. We had a couple other features — sun tunnels to daylight our office reducing the need for artificial lighting, extra insulation to reduce the amount of natural gas needed to heat the office, and we accepted polystyrene (aka Styrofoam) for recycling.

Now, we have 2 ground-mounted solar arrays adding another 15kW of solar power, providing enough electricity to heat and cool our office with heat pumps and to power our five agent-owned Teslas as well as offering free EV charging to the general public. We had our gas meter removed in 2017 and now our Xcel Energy bill is $10 to $11 per month, which is the cost of being connected to the electric grid. We are now a “net zero energy” facility — and we’re taking two truckloads of Styrofoam to a reprocessing center in Denver every month.

Thanks to “net metering,” the electric grid functions like a battery, receiving our excess energy during sunny days and giving it back to us when we need it. We like to consider our office an example that other businesses can aspire to, and we are grateful for this week’s recognition by Golden. Click on the following 2-minute YouTube video tour of our net zero office:

Lakewood Earth Day 2021 features this video tour of Golden Real Estate’s Net Zero Energy office.

Environmental Film Festival Opens Virtually This Weekend: See the Films Online!

With Golden Real Estate’s commitment to sustainability, it’s only natural that we have co-sponsored the Colorado Environmental Film Festival for at least a decade, and we’re happy to co-sponsor it again this year.

The silver lining of the Covid-19 pandemic is that events like this are going virtual, making it possible for many more people (including me!) to see any or all of the films at home and on our own timetable. In past years, I was lucky to see even a few of the films, especially since I also needed to man our company’s table in the festival’s Eco-Expo.

The festival runs from Feb. 12th to Feb. 21st at www.CEFF.net. The three-part mission of the festival, as stated on its home page, is:

Inspire: With a growing public awareness for the environment, CEFF aims to increase this groundswell through inspirational and educational films which help motivate people to make a difference in their community.

Educate: CEFF’s films and  programs help people build the knowledge and skills they need to make environmentally responsible choices.

Motivate: CEFF wants audiences to be a part of the solution to today’s environmental issues and motivates audiences to make a difference in their local environment.

This year’s festival has 75 films in 22 collections. You can buy an all-access pass on their website for $70 (less than $1 per film), a 5-collection pass for $35, or a 1-collection pass for $10.

As I said above, you can view any film at any time during the ten days of the festival, but once you unlock a collection, you need to view its films within 72 hours.

As in past years, the festival’s films include both shorts and full-length films. I’m getting an all-access pass and look forward to seeing as many as possible!

Although most of the films are “on demand,” selected films will be live streamed so that you can watch with the filmmaker and an audience and chat about it during the film and exchange comments, like on Zoom, afterwards. These live streams will be archived and can be viewed on demand later.

There will also be live online “lunch and learns” (one of which is a “Vegan Fusion Cooking Demonstration”) and the Eco-Expo will go virtual too, with live visits to the booths of exhibitors during five “happy hours.”

There will be an “Opening Night Watch Party” featuring a short documentary on electronic waste and a feature film, “The Story of Plastic.” At this event, awards will also be presented for the winning films in each of several categories. Again, if you miss this event, you can stream it later.

The “Closing Night Watch Party” from 7 to 10:30 pm on Feb. 20th is an exception. It can only be viewed live and will not be streamed on demand later. It includes two films, The Catalyst and Beyond Zero, that you cannot pause or rewind. These are summarized on the website. I’m looking forward to these in particular, since the first one is a 6-minute film about going net zero in a home, and the second is a much longer film about a billion-dollar global energy company that committed itself to going beyond net zero by 2020. You can watch a trailer for it on the website.

The festival also has a photography component, and one of the live events (viewable later) is a keynote speech on Feb. 13th by famed photographer Russ Burden, who will show his Serengeti photos.

Of the 22 film collections, several contain films on a variety of different subjects, but there are collections on individual subjects, including: Climate Change; Colorado Issues; International Issues; Oil and Gas; Public Lands and Parks; Rivers; Solar Power; Water Issues; and Wildlife. One collection features various short films. (Each of those links takes you to a page with a list of all the films contained in that collection.)

For the Eco-Expo exhibitors like Golden Real Estate, this year’s virtual format is a big win, because each “exhibitor” has a link you can click on to learn about that company or organization. In our case, you click on Golden Real Estate to view a short video tour of the sustainable features which have made our office a true “net zero energy” facility. You wouldn’t get that opportunity standing at our booth in the physical exhibit hall.

Other exhibitors you’ll enjoy learning about include GoFarm, Metro Denver Green Homes Tour, Citizens Climate Lobby, Luvin Arms Animal Sanctuary, Waste Management Recycling, Population Connection, and Tower Garden by Juice Plus. (These links become active on Friday, Feb. 12th.) I’m looking forward to seeing their videos, because in past years I was too busy manning our own booth to visit theirs!

The festival has always featured films by our youth (18 & under). This year there’s a live stream at 10 a.m. on Saturday the 13th called Filmmaking 101 for Young Filmmakers(also viewable later). Here’s a paragraph from the website: Any young aspiring filmmaker can join experts from Talk to the Camera for a fun, interactive workshop and introduction to the CEFF Youth Filmmaker Festival Challenge. Submit your storyboard to CEFF by Sunday, February 21…. Winner(s) will receive mentoring from a professional filmmaker in 2021 to help you complete and submit your youth environmental film for CEFF’s 2022 Festival!

There are some creative solutions to the lack of in-person events, including “Dinner and a Movie” on Feb. 13th & 19th in conjunction with Tributary Food Hall. You order a 3-course meal-to-go from the online menu for $40 including a ticket to one of the 22 film collections, and pick up your food between 3 and 7 pm to enjoy at home. If you already have the movie ticket, the charge is $35.

Visit the Virtual Festival Home for all the details and to buy tickets — http://ceff.eventive.org — and enjoy all the 15th annual Colorado Environmental Film Festival has to offer from the comfort and safety or your own home! That web page has a useful calendar showing all the events that are live streamed.

If You Want to Buy or Sell a Solar Powered Home, Call Us

Jim Smith and the broker associates at Golden Real Estate are especially knowledgeable about solar powered and sustainably built homes, so consider us first if you are contemplating buying or selling such a home. Between us, we own every model Tesla vehicle — S, 3, X and Y — so we’re experts in electric vehicles, too. Our solar-powered office is “net zero energy,” with no gas service, and our Xcel Energy bill is $10 per month (the cost of being connected to Xcel’s grid), so we know what we’re talking about. Jim’s home is near-net zero (because he still has natural gas service), and he has a large network of friends with such homes, at least one of whom is planning to sell in 2021. Call Jim at 303-525-1851 if you’d like to talk.

A High-Performance Car Can Kill You. A High Performance Home Can Save Your Life.

I have the best assignment on the steering committee of the Metro Denver Green Homes Tour — shooting video tours of the homes we choose to feature. Because of Covid, I’m taking that assignment more seriously than ever, because we may not have an in-person tour this year. (The tour is on October 3rd.)

I post these tours (along with the video tours of our listings) on my YouTube channel. Go there to check out some of the more recent tours.

Those videos, however, are limited in what they can convey in 7 to 10 minutes, so I must leave out a lot of what I learn during the lengthy orientation I get from each homeowner prior to shooting the video.

A good example was my tour last Saturday of Jen Grauer and Josh Renkin’s house in Denver. They scraped a house and built from scratch the best example of a “high performance home” I have come across yet — and I’ve seen a lot of high performance homes.

My 7½-minute tour of the house that Jen completed three years ago could not include a lot of what makes it such a good example of sustainability, so I’ll add to it here.

To be “net zero energy,” a solar-powered home like Jen’s has to be super insulated and super efficient in its use of energy. When a home is that tight, indoor air quality has to be addressed to make the home safe. That job is performed by an Energy Recovery Ventilator (ERV).

The ERV’s job is to bring in fresh air from the outside and to expel bad air while maintaining a healthy indoor humidity level. In the typical home, exhaust fans in bathrooms, kitchens and laundry rooms exhaust air to the outside, thereby drawing fresh air into the house only through whatever leaks exist around doors, windows and other penetrations of the home’s “envelope.” An ERV has one dedicated duct to exhaust air and another to bring in fresh, filtered air. This air is circulated through the house via multiple exhaust and fresh air vents around the home. In addition to maintaining indoor air quality, the ERV transfers some of the temperature (and humidity) of the outgoing air to the incoming air when there is a differential between the two.

Let’s say your home is 70 degrees inside, but it’s 100 degrees outside. The temperature of that incoming air can be reduced to, say, 75 degrees by passing it through a heat exchanger where it doesn’t mix with the outgoing air but acquires some of its temperature. Similarly if the outdoor air is below freezing, the ERV might raise that incoming air to, say, 50 degrees. (I could be way off on these numbers. I’m just trying to convey the concept.)

A conditioning ERV (or CERV) monitors the level of carbon dioxide and volatile organic compounds (VOCs) in the outgoing air. You can set a level that is acceptable (say, 900 ppm maximum) and the CERV will increase the flow of air when those levels are exceeded to bring them back to the acceptable range. Whereas an ERV runs 24/7, the CERV only needs to turn on to bring the levels of CO2, VOCs and humidity down to set acceptable levels. A CERV also has an internal heat pump to add heat or cooling. (See my videos of John Avenson’s and Jim Horan’s homes.)

In Jen’s case, in addition to an ERV, she made sure that the home was built with low-VOC products. For example, instead of using high-VOC particle board, her cabinets are made with zero-formaldehyde birch plywood and her island is solid maple and waterproofed with a zero-VOC oil. Her home has no wall-to-wall carpeting, which typically has VOCs in it. (These items are mentioned in the video of Jen’s house.)

Radon is another pollutant which seeps into every home through their concrete foundation walls and slab-on-dirt. To further improve air quality, Jen installed a radon mitigation system.

In summary, a high performance home can not only save you money in the long run (it costs more to build but nearly eliminates monthly utility bills), it can also create a home than extends your life through improved indoor air quality.