During a prairie restoration project, we had to cut a number of trees down that had grown up along a former fenceline. The farm fields had been planted to prairie in the 90’s, but they were still separated by a straight “treeline” edge. Such unnatural edges decrease the overall diversity of the species that live in the prairie. Instead of creating habitat brush piles and cutting firewood for maple syruping, we had the irregular log sections sawn on-site into 2″ thick boards.
We took the boards to a kiln. This allowed the wood to dry quickly, with minimal warping, and killed any insects in the process. The kiln recut and planed some of the boards for us to create 3/4″ live edge baseboard.
Volunteers took the bark off and sanded down the live edge to create a smooth finish.
A master craftsman from Ryan Companies than installed the baseboard. Lining up the live edge with the studs was a labor of love and caring.
The Living Building Challenge sets a number of Imperatives for creating a sustainable building, and #8 is Civilized Environment. This recognizes that people are healthier, happier, and more productive if they have access to fresh air and daylight. For Amazing Space, the upper portion of every window is operable, allowing guests and staff to enjoy the fresh air and sounds of nature.To maintain a continuous air and moisture barrier between the inside of the building and the outside, after installation the windows frames are sealed with an expandable foam, creating a water-tight barrier.
The U-Factor of a window measures the heat loss. The lower the number (on a scale of 0-1), the less warm air leaks out through the windows during the winter. Our U-Factor is 0.28, and contributes to our overall envelope of R-30. The Solar Heat Gain Coefficient of 0.27 is a measure (on a scale of 0-1) of how much solar heat the window allows into the building. The low SHGC will help keep the building cool in the summer. The 10th Imperative of the Living Building Challenge is biophilia, which focuses on designing a building that “includes elements that nurture the innate human attraction to natural systems and processes.” The viewscapes provided by Amazing Space take advantage of the existing natural woodlands to the north and prairies to the south. This is the view out of a newly installed office window.
An apiary must be more than a wooden box in an ecological desert. The honeybee is imperiled not because we cannot make enough wooden boxes to house them in but because we are all too prolific at creating and maintaining ecological deserts. From the corn field in which we are unwilling to share space for milkweeds, to the Kentucky bluegrass lawn in which we are unwilling to share space for clovers, our meticulously maintained monocultures create the ecological desert that cannot support bees and most other creatures. Save the bees, and we will be well on our way to sustaining the ecology of our planet.
For this earth day, I have the rare opportunity to celebrate our ecology and life by dynamically increasing the diversity of Indian Creek Nature Center-a place that has incrementally been making such positive changes since it started in 1973. The bare ground from the Amazing Space construction zone is ours to create a new sustainable ecology for both the wildlife and the people.
The foundations of a good landscaping plan:
Relationship to place. All of the species selected are native to Iowa. This recognizes and celebrates the value of the natural ecology. Having evolved here, the species will be self-sustaining, able to handle Iowa’s harsh winters and summer droughts. They will support the wildlife that lives here.
Relationship to people. From the linden trees that will shade the driveway to the New Jersey tea plants that border the walkways, the plants and trees are species well suited for urban landscaping. They were selected to demonstrate how native plants and trees can enrich yards, providing beauty, shade and pollination. They also have edible nuts, flowers, and fruits, creating a multilayered edible landscape.
Relationship to plants. Nature is a mosaic of diverse vertical layers. The lindens will provide some shade for the sassafras and bladdernuts. Sunny areas will be dominated tallgrass prairie species. Taller plants will rely on shorter plants for support.
When I was nine, my grandfather would let me mow the hayfield with the tractor. He would supervise from the edge of the field, wearing a long-sleeved plaid shirt and straw hat, eating an apple fresh from the tree.
31 years later, I wear long-sleeved plaid shirts and a straw hat to protect me from mosquitos, thorns, ticks, and the sun. I inherited a McCormick Farmall Cub tractor older than I am. The only thing missing was the apple tree.
My friend Craig has been trying to give me a pair of apple trees for about two years now. I have always demurred, because apples need sun, and that’s not something I have a lot of living under the canopy of an oak savanna. But this spring I was watching the cardinals and chickadees in the thicket of mulberries, multiflora rose, and honeysuckle that had grown up under the dead oak tree, and I realized that I do, indeed, have a sun spot.
The oak tree died back in 2000, before we moved onto the land. It is gradually crumbling in place. Woodpeckers are aiding its decomposition, and more small twigs and bark slough off each year. If enough sunlight in the area is allowing the birds to plant and grow a thriving orchard of invasive trees and shrubs, its enough sunlight for a few more desirable trees as well.
Armed with a chainsaw and a shovel, I started clearing and planting. Since I had no idea what kind of apple tree I wanted (the kind that tastes good?), Craig started me with a lovely variety of heirloom eating apples: a Chestnut Crab, a Yellow Hardin, a Golden Russet, a Ribston Pippin, a Rhode Island Greening, and a Yates.
More ductwork arrives regularly. Often, ductwork inside a building is hidden above drop ceilings. In Amazing Space, we are deliberately leaving the ducts exposed. This helps guests understand the heating and cooling systems in the building, and allows us to highlight the natural beauty of the pine trusses and the integrity of the architectural design.
The glass walls and doors that invite people into the building and entice them back outside are being installed. With the exterior stonework finished and windows letting natural light inside, the biophilic beauty of the building is starting to emerge.
At same time the glass curtainwall system is being erected, the siding is being installed. The yellow insulation foam is being covered by the rich brown of the hardieplank panels.
Amazing Space is made of locally sourced wood and stone. Initially, lapped cedar seemed like a logical choice of siding to compliment the stone. Despite being a rot-resistant wood, cedar still follows a natural decomposition path over time. The cedar on our existing building is being destroyed by woodpeckers, as they dig out the insect larvae burrowing in the wood. In contrast, the hardieplank siding is made from cement board, has a 30 year warranty, and will last indefinitely. The longevity and low-maintenance of this material weighed heavily in its favor as being the more sustainable option.