Tighten up
Local builders study up on efficient houses
It was an only-in-Charlottesville scene: a room packed with green-building enthusiasts, eagerly dedicating a day to the topic of spray-foam insulation. The seminar, held on March 22 at the Charlottesville Community Design Center, connected local builders and architects with the NASA-forged expertise of Richard Rue, a Texas-based mechanical/thermal consultant. Rue showed slide after slide of crawlspaces, attics and unfinished walls to demonstrate how spray-foam is best installed in order to maximize its advantages over the traditional pink-fiberglass insulation. Among his pearls of wisdom:
• If an energy-efficient feature will pay for itself (through reduced utility bills) in two years or less, you should definitely do it.
• If it will pay for itself in five years or less, you should probably do it.
• The way to tell if a house is air-tight enough is to flip it upside down and see if it will float.
Of course, Rue offered a host of more technical information as well, from the R-value (that’s the insulation rating) of wood to the proper installation of an under-house vapor barrier. Homeowners interested in the details of energy-efficient building can start by checking out www.energysavers.gov/homeowners.html (a Department of Energy site), or contact the CCDC at 984-2232.—Erika Howsare
Smart as dirt
Nonconformists turn to the earth for affordable, eco-friendly flooring
We never entertained the thought of having dirt floors in our home, probably because we reserved that type of interior decorating for medieval peasants and Frodo Baggins. However, the new energy-efficient and attractive earthen floors being installed in the homes of some left-coast types are a far cry from their archaic counterparts.
Just kidding! Dirt floors are actually quite durable, say proponents. |
Earthen floors, which are made from different combinations of clay, sand, lime, straw and soil, are surprisingly durable: Once sealed, the floors can be swept or wet-mopped and are relatively resistant to stains. More importantly, earthen floor installation produces no construction waste and little or no pollution, and the floors serve as natural heat conductors—reducing your need for conventional heating systems.
However, dirt floors pose some major disadvantages. The floors are highly susceptible to scratches and punctures and flooding can mean sudden death for an earthen room. Although the materials are —excuse us—dirt cheap, earthen floor installation is highly labor intensive and time consuming.
One notable plus is that—even though dirt floors are virtually unheard of in our area—Virginia soil is optimal for earthen flooring. According to Bill Steen, co-author of Earthen Floors, all earthen floors require a percentage of clay in the mixture; Steen supposes the red clay-rich Virginia soil would be great for the job.—Stephanie Woods
So fresh and so green
New guide = no excuse not to eat local
Fact: the distance from farm to fork for your standard dinner is 1,500 miles. If that figure (or the corresponding gas usage and air pollution) disturbs you, there’s a good thing coming your way this spring. The Piedmont Environmental Council’s free “Buy Fresh Buy Local” guide will be a five-county treasure map of farm, winery and market goodies, and if you live in Charlottesville or Albemarle it will show up in your mailbox around the first of May.
Even tastier when it’s local: Your guide to fresh food will be in the mailbox around the first of May. |
Restaurants that cook with local ingredients will also be listed; that’s a double-dose of support for the Charlottesville economy. And there are more reasons to get psyched about this, selfless and selfish:
1. Veggies and fruits to be shipped far distances are bred to withstand travel damage, meaning tough, thick-skinned (as opposed to, say, tender and juicy) crops are favored.
2. The health quotient of fresh food is directly proportional to the time it spends getting to your table—in most cases, nutrient content starts dropping almost immediately after harvesting. Plus, the flavor that comes from harvesting foods at their nutritional peak is unparalleled.
3. If you have environmental or health concerns about how your tomato was grown, you can just call up the farmer and ask; better yet, go see for yourself.—Katherine Cox
The origin of species
Organic gardening begins with seeds
Check the little “organic” label on the upper right: It means “better for the planet.” |
If you’re going green in the garden, you’re likely to start educating yourself about the virtues of Bt and other friendly pest remedies. You might stock up on row covers and get a nice pile of compost ready to add to your soil. All well and good, but don’t forget to consider the tiny packets of DNA that will get your garden started. Many gardeners wouldn’t consider their plots organic if they planted non-organic seeds.
Why? Several reasons. One, seeds that are certified organic are guaranteed not to be genetically modified. Two, they’re often bred to do well under organic growing conditions, so they’ll be more likely to thrive than seeds raised with conventional practices.
Three—and maybe most importantly—buying organic tomato seeds is just like buying an organic tomato in that you’re voting with your dollars for eco-friendly farming. Seeds are a crop raised by agricultural companies, so you’re encouraging those companies to make green choices when you opt for their organic rather than conventional products.
Local sources for organic seeds include Eltzroth & Thompson Greenhouses on Route 29S, Whole Foods Market and Integral Yoga Natural Foods. Online, you can buy them at www.johnnyseeds.com or www.seedsofchange.com.—E.H.
From the ground up
Local interest in permaculture is blooming
Do you mulch your garden? Is there a trellis nearby that gives shade and props up viney plants? You’re already on the road to permaculture—if you want to learn more about it, there’s a new series of courses bring taught at the Rockfish Valley Community Center. The course focuses on designing one’s dwelling and property to harmonize the relationships between buildings, gardens, forests and the surrounding human community. Complex, yes, but with benefits beyond the satisfaction of being environmentally responsible: for starters, large amounts of money saved on energy and food.
Christine Gyovai is teaching locals how to make their houses and gardens truly green. |
Students at the RVCC will receive a 72-hour certificate in the field and lots of hand-on time with a seasoned team of instructors, including Peter Bane and Christine Gyovai. Gyovai, principal of Dialogue and Design Associates, is a local whose current projects include building a straw bale house for herself and her husband. She’s excited about the success of the ongoing course: “We had an amazingly strong interest level for this course—over 35 people. It’s the largest class east of the Mississippi in 15 years.” If you want to sign up for the next series (coming this fall or spring of 2008) or get info on permaculture demonstration sites, workshops, or work parties, contact her at christinegyovai @gmail.com.—K.C.