Posted by: kdakin
on Jan 16, 2010
Tagged in: Untagged
In gathering information about current best practices in renovating buildings to make them green, I came across a number of articles about new home building by Habitat for Humanity. Since these are ‘affordable’ homes where every effort is made to control costs, I thought there may be some lessons to be learned.
For those of you who may not know of Habitat for Humanity, it is a charitable organization that builds low cost homes and provides financing for low income individuals. It is a charity that I support. I respect their approach, which is a sustainable business model. Every home is built and sold with the revenues going to build and sell more homes.
More information about this great organization can be found at their website: http://www.habitat.org/
Different chapters of Habitat for Humanity are working on development of a green building model. The Portland East Metro recently received the 2010 Energy Value Housing Award (EVHA), the nation’s preeminent energy efficiency award honoring builders who voluntarily incorporate energy efficiency into all aspects of new home construction. See http://habitatportlandmetro.org/habitat-for-humanity-leed-homes-in-portland-to-receive-national-award/. Completed in April 2009, these homes were the first LEED-certified Habitat homes in Oregon, and were the result of a unique opportunity and collaboration between the Cascadia Region Building Council, Walsh Construction Co., Bank of America and Habitat for Humanity.
Some features of these homes include:
● FSC Certified framing lumber from local sources.
● Standing seam metal roofing from Taylor roofing.
● Faswall, a wood-chip Insulated Concrete Form (ICF) locally produced with recycled wood fiber is used in the low walls of both homes.
● American Clay interior plaster produced from local clay by local craftsmen.
● Yolo Colorhouse provided locally produced, organically based paint product.
● SIPs panels and standing seam metal roof manufactured in Oregon.
● Marvin Integrity Fiberglass windows and patio doors.
● Owens-Corning Blown-in fiberglass insulation and rigid foam insulation.
● Fly-ash in concrete.
● Concrete from demolition re-used for landscape pavers.
● Decks constructed from reclaimed discarded wood.
● Paperstone countertops in one unit, Urea-Formaldehyde free laminate counters in the other.
● Urea-formaldehyde free composite woods and cabinets.
● Marmoleum floors in kitchen, bath, and utility areas.
● 100% wool carpets with 100% jute backing in sleeping areas.
This demonstration project was an opportunity to utilize many non-traditional products and systems that Habitat wished to learn about. A large amount of the materials and labor for this project were donated, which allowed the homes to be affordable for low-income families. The families will purchase the homes at cost and pay a 0% interest mortgage. While building green can be more expensive, the long-term benefits of lower-energy cost help make these additional up front costs worthwhile.
Not all of these items may be used in a low cost renovation, but still good knowledge to have.