» Eco friendly

More about air sealing walls

Cory — Tue, 08 Feb 2011 04:37:49 +0000

In the last posting I started the conversation about Air Sealing walls. The idea of air sealing is simple enough, the more air you prevent from leaking through the walls, the less your home will feel drafty. The less drafty, the more comfortable your house will feel and the less energy it will take to maintain the temperature of the home. The best way we have found to do this is to air seal on the inside of the wall or right behind the sheetrock. By sealing the wall at this point, we are still able to build a wall that can allow moisture to escape to the exterior side of the wall.

So how do we do it. One method is to use plywood or OSB on inside of all exterior walls, floors and ceiling joist. Then using tape we seal all the joints and seams were the individual sheets of plywood meet. We then fir out the ceiling and walls to allow for all of the electrical wiring and HVAC duct work. We design the plumbing so its on the interior walls as much as possible. This does add to both the framing materials and labor, and has to be accounted for in the budget. In the design we strive to have as few of penetrations in our air seal as possible. Each penetration is taped to prevent air leaking past. I know this sounds like a lot of extra work, and it is, however the long term payback will more then offset this cost, and remember the home will feel much more comfortable.

The tape we use is from SIGA. (http://www.siga.ch/Home.20.0.html?&no_cache=1&L=1) remember to hit the english button on the right of the home page..They are a company in Switzerland, who have been involved in air sealing for many years. They have fabrics and tapes for all kinds of air sealing. Their American distributor is The Small Planet Workshop. (http://www.smallplanetworkshop.com) locate right here in Thurston County in the Oyster Bay area.

South Sound Green Tour April 16th & 17th

Cory — Thu, 03 Feb 2011 00:29:20 +0000

The Eco Builders Guild, South Sound chapter is proud to announce the second annual South Sound Green Tour coming April 16th & 17th. We started the Green Tour last year and it was huge success. Just like last year, we will feature houses and commercial sites that represent the best in green building and sustainable practices. The homes are located through out Thurston County, including Tumwater, Olympia, and Lacey. We will also have workshops at each site demonstrating many of the features of each site. This year we have also added an expo which will be located in the new Lott buildings parking lot. It will house lots of vendors offering a huge array of green products and services.

Another big addition to the tour is that the Seattle chapter has joined in with us and will have a tour of their own on the same weekend. For more information, or if you would like to be a vendor or site sponsor please visit http://www.ecobuilding.org/events/2011-green-home-tour.

Dont miss the Tour of Homes October 2nd &3rd and Oct 9th &10th

Cory — Tue, 28 Sep 2010 03:39:09 +0000

Laupen homes LLC. is proud to showcase two homes in the OMB tour of Homes. First we will feature the Cooper home. This is the same home we had in last spring’s Green Tour. If you didn’t get a chance to see it the first time, come out this weekend and be amazed. This home was a challenge to say the least, but we persisted and the outcome is incredible. You can view photos of it on our project page and read the owners comments on our referral page.

The second home we are featuring is the Bouvier/Rogers house, also known as the hobbit house. Now we could really call it a hobbit house without a round door, so a round door it has. Handcrafted out of mahogany wood, the door has a tree carved into it. Master carpenter Mike Anderson was the inspiration behind the door. It is a must see. This home also features a “Floating Loft” over the main entrance and living room. With lots of curves and whimsical features this home is a must see.

Still being painted

But don’t let the playfulness of the home fool you. It has state of the art energy efficient systems including radiant heat and a Heat Recovery Ventilator. Six operable ski lights make for wonderful natural lighting and at the same time allow the summer heat to escape keeping the interior of the home cool without the need for air conditioning. The outstanding blower door score of 1.23, (most new homes receive a 5 or higher) made it easier to received a Built Green level 5, and Energy star certifications.

Cory in front of Mike's beautiful door

Come out this weekend and see these wonderful homes. I look forward to meeting you
Cory Eckert

Making your home water-wise 2

Cory — Sat, 10 Apr 2010 08:43:56 +0000

How you maintain your garden is also as important as planning when it comes to conserving water. If you’re looking at limiting the amount of water you put into your garden, you will also need to limit the amount of water that flows out of your garden. You can do this is many ways:
• Pick plants, shrubs and grass that are known to develop good root systems and employ gardening techniques that improve roots. One way to do this is to mow the lawn tall, but do it frequently. The other way to do it is to pick plants that go well with your climate and soil and water them well for the first few weeks before you reduce the frequency. Keep looking out for leaves that go yellow and new shoots that look weak and pale.
• Mulching is an excellent way to ensure that your soil remain well hydrated and does not loose moisture, especially if you live in dry weather. Mulch can be conveniently prepared in your backyard using organic waste from your kitchen. A healthy dose of nitrogen fertiliser is also recommended, provided you know what you’re doing.
• Irrigation techniques are the most crucial aspect of conserving water in the backyard. In regions frequent watering is required most homeowners opt for irrigation to keep it convenient. Drip irrigation saves much more water than sprinklers which water a lot of things other than the grass. Gray water systems are another great option. Gray water is ‘wash water’ i.e. water used in the bathrooms, kitchen sinks and laundry, which is treated and then used in gardens. Gray water does not include water from toilets (which is called black water) and is perfectly safe, with few chemicals and pathogens once it’s treated and is used by a large number of families for irrigation. A gray water system is simple enough to be installed in your backyard. However, make sure you are familiar with your locality’s policies on gray water systems.

Making your home water wise

Cory — Mon, 05 Apr 2010 08:40:36 +0000

A pretty home in a quiet suburb, kids playing on the porch, toys littering the driveway and a large backyard with a pretty garden. This is usually the picture most homeowners want when they are remodeling their homes. In particular, the large backyard with a pretty garden is very common, especially for those with kids. While it may seem to be the perfect addition to a green home, a garden that is not well-planned can actually do more harm than good to the environment, by causing you to waste water.
Going water-wise is not just limited to toilets and faucets. If you have a garden, a large amount of water goes down there too, sometimes much more than is necessary to keep your garden green. Thus, we often suggest water-efficient landscaping and gardening when we remodel homes. This does not mean tearing up your garden from hearth. Although it is always easier to do over the entire garden, water efficient practices can also be integrated with the way your current garden is. And this can be done quite simply:
• The first way to limit the amount of water you put into your garden is to choose the plants you water carefully. Some plants tend to survive longer with little water and ideally these should be your first choice. This does not mean you turn your garden into a cacti exhibit. Most of the plants that grow naturally in your surroundings are your best option. Trying to grow and maintain an exotic garden can prove to take up a lot of water and money and effort.
• Soil preparation is an important part of creating a water-efficient garden. After the climate, your soil is what will determine what kind of plants will grow best, with less water. Planting ones that suit your soil or treating the soil accordingly before you plant will ensure that your garden works well with the natural weather and minimal water supply.

Low flow water fixtures

Cory — Wed, 31 Mar 2010 08:36:24 +0000

Installing water efficient fixtures can definitely bring in savings over the long term, for your pocket as well as the planet. Water efficient toilets save close to 4000 gallons of water per year and water efficient faucets and showerheads too, save large amounts of water as compared to conventional fixtures. However, that is not all. Most water boards and utility providers also offer you rebates on water efficient products.
The amount of rebate depends on the type of product you buy, your water board or utility provider and where you live. For instance products and accessories marked with the EPA’s Watersense label are eligible for rebate in almost all states. A list of utility specific rebates available can be found on the EPA’s Watersense website, here.
What if you’re not buying a WaterSense labelled product? There are quite a few other reputed manufacturer that offer great products and services at the residential, commercial and community level to help reduce water consumption and energy savings. For instance American Standard has been manufacturing products and services to help tackle water scarcity since the past 100 years. Their rebates page offers an exhaustive list of states where you can make savings + get your money back.
Depending on your geographic location, your county, district or state will have their local authorities and programs that work at water conservation. These partner with local water suppliers, manufacturers and state authorities to offer attractive discounts on water efficient products, systems as well as rebates. Check the websites of your local utility provider to know more about how you can save water, save energy as well as money.

Making your home water-wise

Cory — Sun, 21 Mar 2010 13:29:44 +0000

Saving water is more often than not, the introductory phrase to environmental awareness. Ask anyone how they plan to save the environment and “Turn off the tap while brushing” is on their list of top three ways. However, saving water and using it efficiently is one of the most basic ways in which we can ensure our homes are green. While most of us will conscientiously try and maintain water saving habits in the house and encourage others to do so, a lot of water wastage happens in other, not so obvious ways. Therefore, while remodeling homes we often ask homeowners to look beyond turning their taps off to replacing them altogether with water efficient taps.
A sure-shot way of looking for faucets that can help save water is to look for EPA’s ‘Watersense’ label, a certification given to bathroom fixtures and accessories that use minimum water, no more than 1.6 gallons per minute, as per federal regulations. The Watersense label, a program by EPA, is an independent third party certification given to products that clear the strict federal requirements.
Water efficient bathroom fixtures are not just limited to faucet, they also extend to showerheads that provide the comfort, and ‘feel’ of a regular shower head while using only a fraction of the water. In fact, there is a range of products that have the Watersense label and can greatly limit your water usage and wastage. These products cost a little more than the regular products, however, are worth it when you consider their quality and reliability as well as efficiency and lifetime value. Replacing your current fixtures with water efficient, or even better, Watersense fixtures is bound to bring in large savings in your annual water bill. To know exactly how much, you can use the savings calculator on the EPA’s Watersense website.

Windows and insulation

Cory — Sun, 24 Jan 2010 08:58:11 +0000

Sometimes getting the U-Factor, SHGC and VT values right is not enough. Often, the installation of the window itself, i.e. the entire window assembly can have flaws. These flaws result in air leakage – one of the main obstacles in trying to achieve energy efficiency with the help of windows.
If your house is built on the Passivhaus principles; or you are looking at seriously reducing your HVAC requirements (and thus the bill) then air leakages through windows can punch a large through your plan. Some energy efficient windows specify the AL value (expressed in cubic feet of air passing through for every square foot of the window assembly) between 0-1. The lower the value, the lesser the leakage. The industry-accepted value is 0.30.
Another problem for insulation is condensation. If you live in cold areas, you’ve probably seem frost or dew on the edges of the windows. Looks quite ‘Christmassy’ but it only means that much more heating load. Condensation happens when inside warm air comes into contact with cold panes and glass, which essentially means your windows are not doing such a good job insulating.
With condensation and air leakage, there aren’t fixed ratings to go by. However, certain materials and window technologies work better. For example, if you’re opting for multiple pane windows, looks for stainless steel spacers, or thermally improved spacers made from silicon foam or butyl tape. These spacers might be more expensive, but they are better are insulating, sealing and thus preventing unwanted heat transfer, while at the same time allowing from seasonal expansions and contractions in panes. Similarly, opting for energy efficient windows with two or more panes or glazing reduces condensation even at indoor humidity levels of 45-60%. This is especially true of windows with argon/krypton glass filled windows.

What makes windows eco-friendly?

Cory — Thu, 14 Jan 2010 13:38:32 +0000

No, we are not switching to promoting green software – we’re going to stick to good ole’ hardware and home building. For a long time, windows have been thought of just as basic necessities to a house, or as ornamental and status-symbols. However, windows are a big factor in terms of our electricity bills, keep us healthier, make our homes last longer, save energy and essentially, save the planet. However, they can do all this and more.
Eco-friendly windows are essentially energy efficient windows. The make, material, frame, size and positioning of windows has a great impact on interior lighting, indoor temperature, heating & cooling systems and indoor air quality. Energy efficient windows work at maintaining optimal levels of all these aspects and thus significantly reducing our bills and our carbon footprint. And with the new eco-friendly wave taking the construction industry by storm, energy star certified windows are easily available. Also, the certification system is such that it works well for different kinds of windows that are made for different home requirements and weather conditions.
Yet, it can still get quite confusing and most of us are not quite familiar with scientific window terminology. Essentially, when you buy energy efficient windows, you will come across a lot of numbers and ratings. There are five things you need to look at:
1. U-Factor (Level of heat transfer)
2. Solar Heat Gain Co-efficient (Heat capturing capacity)
3. Visible Transmittance (Light Transfer)
4. Air Leakage and
5. Condensation Resistance
And that’s why we have a series of how to understand and buy energy efficient windows – without wishing you’d done more math in high school.

Geothermal heat pumps are quite a viable option for many reasons.

Cory — Sun, 27 Dec 2009 08:00:23 +0000

1. Adaptability: GHP can be used in a variety of climates and conditions. With air-source pumps, the general external temperature matters quite a bit. However, regardless of surface temperature, the temperature beneath the earth’s surface remains more or less warm, constantly. This makes it possible to use GHP in different geographical regions with different temperatures. Add to this, there are four different types of GHP installations available, depending on different soil, climate and installation costs. The local installer will be able to guide you to the best option for you.
2. High Efficiency: Because the earth’s temperature is more or less constant, GHP provide you with better heating cooling without having to create any heat in the first place. For moving heat, GHPs use only 50-75% of the electricity used by other heat pumps. This makes them extremely efficient, with a rate of 300-400%. They’re also very efficient at controlling humidity, which works great for a wet weather like ours.
3. Durability: GHPs have no moving parts, and the parts are rarely exposed to weathering or destructive elements. As such, with a proper installation, the entire system can last up to 25 years (and certain parts up to 50)
4. GHPs are much quieter that other heat pumps, require less space and can be configured for use in a new home or old one. Plus, it is also possible to control the heat supply and therefore the temperature of different rooms with GHP.