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Infiltrating the Truth behind Winter Heat Loss
Summer is winding down in the Hoosier state. Whether it's the foliage, football season, festivals, or the fall harvest, with the arrival of autumn comes some of the year's most beloved and festive occasions. It also means that frigid weather is soon to arrive and for many Hoosiers that means a formidable spike in energy bills. Contrary to the beliefs of many, for the typical American home, doors and windows are not the main culprits of heat loss. Rather, infiltration constitutes the primary source of winter heat loss. Infiltration can be defined as the warm air that leaks out of a house through vents and cracks. As the warm air leaves the house, cold air is drawn in. Thus, that cold air has to be heated. This phenomenon is made worse when the entering air is colder or when winter winds hitting a house force cold air in and drive warm air out. In general, infiltration and air leakage can account for over one-third of the heat loss in a house. By comparison, heat loss through a window pane or a door may only account for about 20% of the home's lost heat. A quick online perusal will reveal a laundry list of ways that current homeowners can "winterize" their homes. Everything from caulking around windows and door frames to stuffing insulation into unused fireplaces can have a significant impact on reducing winter heat losses. However, in order to achieve a whole other tier of energy savings from reduced infiltration, our homes need to be designed and built in a manner that is sensitive to this issue. In a severe winter climate such as ours, residential designers should always strive to build tight and insulate right. That means construction should be as airtight as possible, featuring doors and windows of high quality airtight seals. Cracks and gaps around these components, as well as electrical outlets, plumbing vents, and the like, should be caulked and sealed. Designers should carefully examine construction details to ensure that thermal bridging is avoided. And while a high degree of insulation does not directly affect the issue of infiltration, the type of insulation can make a major difference. For instance, spray blown polyicynene foam insulation has about the same R-value as fiberglass batt insulation; however, as the polyicynene expands, it fills the crevices of a house's framing, thus dramatically reducing infiltration compared to that of batt infill. Then there is always the issue of non-porous building materials. Using less porous materials in a building's envelope can reduce air infiltration through the material itself. However, materials with high vapor resistance can prompt interstitial condensation, which could lead to mold and unhealthful indoor air quality. The bottom line: when addressing winter heat loss, designers and homeowners alike should never underestimate the heat losses due to infiltration. In many instances, an additional investment in making one's home airtight will yield more savings than the same investment in additional insulation. For more information regarding this article, please contact Daniel Overbey, LEED AP, at doverbey@bdmd.com.Your feedback and suggestions are always welcome! |
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Indiana Chapter to Revise Web Site
After its successful launch on July 4, The USGBC Indiana Chapter web site will be receiving its first facelift.
The most visible upgrade will be the addition of event registration tools that will allow a person to sign up for chapter meetings and other events, including paying fees, from the chapter website as opposed to sending emails and checks.
One of the more important changes will be "behind the scenes;" a content management system will be added that will allow chapter staff and volunteers to easily and rapidly update the content of the website.
The chapter Board has accepted a proposal from Westlake Design of Carmel, who will continue as web site designer and developer.
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Executive Director to be Sought
As a condition of receiving a Challenge Grant from USGBC National, the Indiana Chapter will create and fill an Executive Director position. The Board is currently creating a job description and RFP.
The Challenge Grant requires that the Chapter have the Director in place by the end of November. __________________________________
Region to Contribute to GIS Database
Future versions of LEED will include credits for addressing regionally-based ecological issues. To that end USGBC has tasked the various regions to create databases that would establish the various ecological zones.
Heartland Region will engage a GIS mapping firm to create a web-based geo-spatial map of the Region, based on zip code and associated environmental zone.
Funding for the project will come through contributions made by each chapter in the region. |
Become a Sponsor!!!!
The Indiana Chapter of the US Green Building Council invites you to support the activities of the chapter by becoming a sponsor. As interest in green building gains momentum in Indiana, there has never been a better time to become involved with and support the Chapter.
Through communications, educational programs, networking events, and advocacy work, we hope to educate and create awareness of green and sustainable building strategies. Please consider becoming an annual or program sponsor and joining our effort for a better built environment.
There are several levels of sponsorships that are available. To receive a Sponsorship Registration Form, please contact Angie Resiak, Chapter Coordinator.
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 USGBC-IN is supported with a 2008-2009 IOED development grant |
From Inside Indiana Business.com
The City of Lafayette is taking a green approach to the redevelopment of a downtown building. Developers, building owners and the public are getting a chance for an up-close view of the environmentally sustainable building project. The city is holding a series of forums before, during and after the construction of the $300,000 to $500,000 reuse project to showcase green design, processes and materials.
"The renovation project of 515 Columbia Street is the City of Lafayette's attempt to inject the idea of sustainable construction into not only their own city's boundaries, but the state as a whole," said Eric Anderson, AIA, LEED AP of AXIS Architecture + Interiors, who is presenting at the event. "Being a renovation of a downtown building, it is setting an example by fostering community connectivity and lowering embodied energy requirements."
Lafayette Mayor Tony Roswarski hopes the project demonstrates how builders, developers, architects, engineers and the public "can build smart for the future cost effectively."
FIRST EVENT: Wednesday, September 17, 4:00 p.m. WHERE: Lafayette City Council Chambers, 20 North 6th Street WHO: Lafayette Redevelopment Director Dennis Carson and Eric Anderson, AIA, LEED AP of AXIS Architecture + Interiors. RSVP: Suggested, but not required. 765.807.1090 or nhendricks@lafayette.in.gov.
INdiana Sustainability Alliance ("INSA") Event in Evansville
INSA is hosting a panel discussion program on Wednesday, September 17, at Vectren Corporation, 211 NW Riverside, Evansville, Indiana, 47708.
At 5:00 p.m. (CST), Mayor Jonathan Weinzapfel will provide a welcome and introduction to the program. Registration and networking will follow his address.
At 6:30 p.m., INSA will host a panel discussion regarding the challenges and opportunities provided by LEED certified buildings and emerging green businesses. The panel will be moderated by Jeffrey W. Whiteside, Vice President, External Affairs and Sustainability, and will feature Bill Brown, Associate Partner, Browning Day Mullins Dierdorf, Brad Morton, Owner, Morton Energy, and Paul Jones, Attorney, Ice Miller LLP.
INSA promotes the growth of the sustainable development, green building, renewable energy, water management, and clean technology industries in Indiana. INSA brings together members of these industries by initially offering educational and networking events. For further information and to register for the event, visit www.indianasustainability.org.
ENERGY STAR NEW HOMES PROGRAM Training Workshops
Two ENERGY STAR NEW HOMES PROGRAM Training Workshops will be held this fall in Muncie and Vincennes. The Workshops will feature details of special interest to builders and their field supervisors, insulators and framers. The program includes:
- Summary of Vectren residential programs/rebates
- Overview of ENERGY STAR Program specifics:
- Window requirements
- HVAC requirements
- Water heating requirements
- Recessed lighting requirements
Third party inspection testing
Promotional/marketing tools
Thermal Bypass Checklist:
- Insulation/framing
- Duct sealing
The programs are sponsored by Vectren in conjunction with the Vincennes Area Builders Association (VABA) and Vincennes University (Vincennes), and the East Central Indiana Builders Association (ECIBA) and Ball State University Center for Energy Research/Education/Service (Muncie).
Muncie WorkshopWHEN: Wednesday, October 8, 2008, 6:00 - 9:00 p.m. WHERE: Ball State University Architecture Building, SE corner of McKinley and Neely, rooms AB-014 and AB-015 REGISTRATION: All builder attendees will receive a complimentary ENERGY STAR plan review. The cost for ECIBA members, associate members and guests is $20 per person. Students and faculty of Ball State University may attend free-of-charge. Refreshments and workbook are included. To register, or for more information, contact ECIBA at (765) 282-9617 or eciba1@comcast.net.
Vincennes Workshop WHEN: Thursday, November 20, 2008, 3:30 - 5:30 p.m. WHERE: Vincennes University Construction Technology Building, 324 W. Red Skelton Blvd. (parking available on the south side of the building) REGISTRATION: The cost for VABA members, associate members and guests is $20 per person. Students and faculty of Vincennes University may attend free-of-charge. Refreshments and workbook included in the cost. This workshop precedes the VABA monthly dinner meeting and annual scholarship awards. We invite you to stay for the dinner and meeting (additional $12 per person). To register, or for more information, contact VABA at (812) 882-5162 or vinshirley@cinergymetro.net.
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After Construction, LEED certification pays for itself.
Author: Claude Solnik Source: Long Island Business News Date Written: 9/4/2008 Russell Albanese loves LEED. "I do believe it works on many different levels," said Albanese, president of Garden City-based developer Albanese Organization. "It's not only good for the environment, it's also good business. Corporate America is more looking to be in green buildings."
Created by the U.S. Green Building Council, Leadership in Energy and Environmental Design sets construction standards for energy efficiency, sparing water usage, and other healthful and nonpolluting features. Such construction often increases the cost of a building, and applying for the LEED designations - ranging from the lowest, certified, through silver, gold and finally, the highest, platinum - adds costly paperwork and requires a fee. But for developers such as Albanese, the LEED cachet, which skeptics brush aside as hype, is becoming the equivalent of the movie critic's thumbs up. Prospective tenants look at LEED and foresee savings on utility bills and a more healthful environment than in a conventional building. Those promises increase demand, Albanese said, and he keeps spending his green to prove it. His Solaire project in Lower Manhattan became the nation's first LEED gold high-rise residential building, and his Verdesian in Manhattan later became the first high-rise residential platinum, according to the USGBC. Albanese's Visionaire, a high-rise condominium also in Lower Manhattan, was built to meet the standards of platinum certification. And every time Albanese's tenants walk through the lobbies of those buildings, they pass the LEED plaques that proclaim his commitment to what he calls "green design and sustainability." Albanese boasts the Verdesian is 40 percent more energy efficient than the standard building code requires. Adding to that practical advantage is the hip factor: Green building is the architectural equivalent of the Toyota Prius. Cristina Salata, a spokeswoman for Albanese, estimates rents at his green-plaque properties are 20 to 30 percent above market value thanks to LEED certification, in part because people expect to save money due to lower energy costs. "There are waiting lists to rent in those buildings," Salata said. "It's minimal turnover." Green building is possible, even popular, without the LEED imprimatur; but the lure of that plaque is becoming difficult to resist. Ronald B. Lanner, an architect at architecture and engineering firm H2M in Melville, said his firm built green for years without obtaining LEED certifications. But such award systems as LEED, he said, attracted clients. "Why are people doing it?" Lanner said. "LEED is a third-party recognition that they're constructing a green project." Although there are other systems such as Green Globes, LEED leads among builders, architects and the general public, and that translates into good marketing. "Rating systems are great," said Jessyca Henderson, research architect for sustainability at the American Institute of Architects in Washington, D.C. "They're a tool for architects and designers. They're a part of the marketplace, helping drive sustainability." She called LEED a "highly comprehensive rating system" that provides credibility and is "making improvements all the time." Jonee Kulman Brigham, research coordinator at the Center for Sustainable Building Research at the University of Minnesota, sees LEED as a flawed but beneficial force. "It's a net good," she said. "It has succeeded in part in transforming the market. "It's created a common language and demand for green buildings. By translating into points and medals and a standard, it made it more accessible to people who didn't understand green." And in the ultra-competitive realm of construction and development, builders and designers are noticing that clients have an altruistic side. Veronica Byrnes, project manager at H2M, said she knows at least one client who was "interested in green architecture and educating the community," and so sought LEED certification for a project. Rising fuel prices probably will make LEED more attractive, increasing the value of all energy-saving practices and certifications. Companies are "looking toward green building to help t hem with energy," Lanner said. "They want a proven standard, and LEED is a proven standard." Oddly, LEED's success rather than its flaws threatens its role as a green-building standard. "Everyone's saying eventually it won't be 'green or not green.' It'll just be good building practice," Winter said. "If eventually all buildings are green, there's no need for this policing. LEED consultants and (other promoters of green building) will have worked themselves out of a job. That's not a bad thing."
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Green Jays Communications can help your organization "go green" through effective communications. Find out more at our web site.
Green Jays Communications supports the work of USGBC-IN through its generous in-kind contribution of services. | |
Chapter launches Emerging Green Builders! EGB Indiana outreaches to students and young professionals
Five young leaders in Indianapolis will market EGB to Indiana students and young professionals about the benefits of the organization and the green building movement. This steering committee will be putting out a call later this month to select local chapter liaisons to help bring EGB to the universities and communities across the state. If you know of any students or young professionals interested in becoming an EGB Indiana local liaison, please email us here. Emerging Green Builders are students and young professionals dedicated to becoming and recruiting the future leaders of the green building movement. EGB groups around the country offer young people the opportunity to get involved in green building locally, gain access to USGBC resources, and participate in local events. EGB Indiana will be initiating state-wide meetings and activity models for local chapters. EGB will also focus on greening high schools and universities by implementing green practice guidelines, best practices, and providing resources to departments and faculty.
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Alexander Karsner, the DOE's assistant secretary for Energy Efficiency and Renewable Energy, announced the formation of the National Laboratory Collaborative on Building Technologies (NLCBT) in conjunction with the launch of the DOE's Zero-Net Energy Commercial Building Initiative (CBI).
The initiative, established by the Energy Independence and Security Act of 2007 (EISA) that President Bush signed into law in December, calls for all new commercial buildings to be so efficient in energy consumption and in on-site renewable energy generation that they offset any energy use from the grid. The target date for that goal is 2025. The initiative sets a zero-net energy goal for all commercial buildings by 2050. New "Daylighting Collaborative" Website and Newsletter Now AvailableFrom www.daylighting.com The Daylighting Collaborative was initiated by the Energy Center of Wisconsin and its sponsoring members as a source of why-do and how-to information for daylighting using windows. The organization's mission is to empower all building designers and owners to incorporate daylighting into every project by providing with them with a single source to locate all information they need: the Daylighting Collaborative advanced design that respects the natural environment and creates energizing spaces for people. The organization's latest bimonthly newsletter is now available at www.daylighting.org/news. It May Be a Jungle Out There, but No Longer in the LobbyFrom the New York Times
Published August 20, 2008
For decades, it has been practically an unwritten rule of office building design that a high-end building should have lushly landscaped lobbies or atriums.Today, though, tastes seem to be undergoing a change, with owners seeking a leaner less-is-more look for their lobbies where the only touches of greenery are often a few cut flowers in a security desk vase.
Published September 5, 2008
Projects to green and repurpose the 84-year-old Florsheim Shoe Company Building, create a striking infill in the heart of a historic district and add eco-friendly elements to two other stately structures have received the Chicago Landmark Award for Preservation Excellence.
The four buildings are among 22 that were honored yesterday at an awards ceremony conducted by the city Department of Planning and Development and its Commission on Chicago Landmarks to recognize outstanding preservation, renovation or rehabilitation of the city's architectural treasures and historic districts.
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September
17: LEED-EB Webinar Session 4: Water Conservation Details
Vectren Corporation 211 NW Riverside Drive Evansville, IN 47708 1PM - 5PM
17: Taking the LEED
What: First in a series of forums that will follow a LEED
renovation from design to completion.
When: 4pm
Where: Lafayette City Council Chambers
20 North 6th Street
Lafayette, IN
Who: Lafayette Redevelopment Director Dennis Carson
and Eric Anderson, AXIS Architecture + Interiors RSVP: Suggested, but not required. 765.807.1090 or
6729 Westfield Blvd, Indianapolis
Minnetrista
1200 Minnetrista Parkway
Muncie, IN
October
10: LEED for Schools Technical Review
Ball State University (tentative)
online registration not yet open
15: USGBC-IN Chapter Meeting
Location: TBD
Topic: Sustainable Sites
Marriott Indianapolis North Clark Room 3645 River Crossing Parkway Indianapolis, IN 46240
Week of the 1st: USGBC-IN Chapter Membership Gala!
5: LEED Technical Review (Rating system TBD)
Please email your event notices to the Editor. Thank you! | |
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From the Editors
Feel free to write us with your questions or comments! Please use the subscription link above for subscription requests. If you wish to modify your account profile or unsubscribe, please use the tools below.
Thanks!
Mark Darrall, LEED AP
Dan Overbey, LEED AP, Assoc. AIA USGBC Indiana Communications Co-Chairs |
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