» Green Building

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.

Air sealing walls, is it the right thing to do?

Cory — Sat, 05 Feb 2011 05:21:47 +0000

It has long been known that without making your home air tight, there is no way for your insulation to perform at it true r value. For example if your walls are built with 2 X 6 studs and insulated with R-21 insulation batts, without the house being airtight, the insulation performs at a reduced R value, something around a R-17. This is caused by gaps between the studs and the insulation which allow air to leak by. The problem in the past with making a home air tight was that the process would also trap moisture in the walls, which would lead to dry rot. Back in the 80′s and early 90′s air tightness was tried by installing 6 mil. plastic on the studs and drywalling over it. With plywood or OSB on the exterior of the wall, this left no place for the water to escape. I remember walking into houses before the drywall was installed and watching the water run down the sheets of plastic. This method of air sealing was quickly dropped and no real alternative was offered. Some minor air sealing of the bottom wall plate to the floor with caulk and foaming around doors and windows is about as far as we’ve gotten with the codes.

Just this year Washington state has adopted a stricter insulation code. It is basically the old Energy Star standards. One part of the code is the requirement that all new home have a blower door test prior to final inspection. Blower door test measures the amount of air leaks a home has. New homes are required to have a blower door score of 7.5 or lower. What this means is that if the air pressure difference between the outdoors and the inside of your house is 50 pascals (50 pound per square inch) then the air in your house will completely exchange itself seven and one half times in an hour. This is still a drafty house but its a start.

By making homes airtight we obviously can cut down the cost of heating these homes. Done correctly we also can build the walls in a manor that will allow moisture to escape. This is the best way to build. In future articles I will talk more about the methods behind this type of construction

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.

Olympia’s Hobbit House

Cory — Mon, 31 Jan 2011 15:29:30 +0000

The February / March issue of South Sound magazine features a story of the Bouvier/Rogers home which we at Laupen Homes LLC. built last year. The article includes some wonderful photos of the home that really capture the fill of this unique house. Of course there is a great photo of the round, hand carved wood door along with others of both the interior and exterior of the house, however one photo in particular is especially impressive. It’s a photo taken of one of the master bath vanity’s and mirror. At first it looks to be just a good picture of the vanity until you look at whats in the mirror. Thats when you notice that the photographer was able to capture the walk in shower, second vanity, and the other mirror. It’s a wonderful photo and worth a look.

Along with a story that talks about the unique aspects and energy efficient features of this home, you’ll also find in the article, the phone numbers and web site addresses of many of the subs and supplies who’s work is featured. You can find the magazine starting tomorrow in news stands and grocery stores throughout the south sound.

These are city’s, places and county’s we work in

Cory — Thu, 04 Nov 2010 01:01:53 +0000

These are city’s, places and county’s we work in; Olympia, Lacey, Tumwater, Shelton, Steam Boat Island, Oyster Bay, Mason County, Thurston County, Rochester, Tenino, Yelm, Tacoma, Dupont, Linwood, Nisqually, Delphi, Gate, Littlerock, Rainer, Lake St Clair, Long Lake, Ward Lake, Black Lake, Elma, Patterson Lake, Johnson Point, Fish Trap Loop, Boston Harbor, Cooper Point, Eld Inlet, Budd Inlet, Summit Lake, Hewitt Lake, Hicks lake, Chamber Lake, Henderson Inlet, Tolmie State Park, Nisqually National Wildlife Refuse, American Lake, Fort Lewis, McChord AFB, Offutt Lake, Ground Mound,

Tour of Homes awards announced

Cory — Fri, 08 Oct 2010 12:47:48 +0000

The Judge’s choice awards for the 2010 Olympia Master Builder’s tour of homes was announced and we are proud to announce that we won two of the awards. Our Hobbit House won for best curb appeal and the Cooper House won Best of Show – Custom Home. We are very excited about the awards and humbled that the judges thought so much of our homes. The people’s choice awards will be announced later this month.

The show continues this weekend. All homes are open both Saturday and Sunday from 11 to 5. If you need a guide for all of the homes on the tour, we will have them at each of our houses. The addresses are 123 West Bay Dr. (near downtown Olympia) or 10621 Katieann Lane, (near Offet Lake off of 103rd Street and Steadman Road.

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.