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Socially & environmentally conscious homeowners certify in SE Michigan

Designed by Young & Young Architects, the contemporary “green” house is constructed of stone, cement plaster, copper, and glass. A bridge connects two sections of the home. The landscaping consists of indigenous, drought-resistant plants and grasses. all the materials used to build an ultra-green home in Bloomfield Township came from within a 500-mile radius, to meet LEED (Leadership in Energy and Environmental Design) requirements. But the idea for the house took root thousands of miles away.

“We travel to South America a lot, and when we’d fly over the jungle, we’d notice large swaths being clear-cut and burned,” says Art Roffey, who owns the home with his wife, Gail Danto.

“We spent time with the tribal people, and they would talk in terms of being custodians of their land, but they were seeing it disappear,” he says. “That was a big influence for wanting to build our home.”

The couple also noticed the recession of glaciers in the Andes. So, when they decided to build their house on Indian Pond, they were keenly aware of the environment.

The 1950s-era home formerly on the site was deconstructed, and all the materials were recycled and donated to the non-profit Architectural Salvage Warehouse of Detroit.

“We wanted to build a house that was beautiful and elegant and also honor the environment at the same time,” Danto says.

By all accounts, they accomplished that, with the assistance of Bloomfield Hills-based Young & Young Architects (Don Paul Young was the principal architect); LEED consultant Jim Newman, from Newman Consulting Inc. in Bloomfield Hills; Joseph Maiorano, from the Artisans Group in Royal Oak; and interior designer Diane Hancock, of Diane Hancock Designs.

At press time, the house was under review by the U.S. Green Building Council for Platinum certification — the highest level. The design also resulted in five 2011 Detroit Home Design Awards last March.At press time, the house was under review by the U.S. Green Building Council for Platinum certification — the highest level. The design also resulted in five 2011 Detroit Home Design Awards last March.

The home, which Roffey and Danto moved into in January 2010, is green as grass: Heating and cooling is geothermal; electricity is supplemented by 30 solar panels; a graywater system filters and stores water for non-drinkable reuse; the roof is recycled copper; and all appliances are Energy Star compliant.

Sustainability harvested teak was used extensively, as was lyptus wood. “You cut it at the trunk, and it grows a new trunk, which is the ultimate in recycling,” Roffey says.

Some of the furniture was designed by Hancock, who used recycled materials for fabric. Several Hancock-designed pieces were made by local artisans, Danto says.

Wherever possible, recycled or repurposed materials were employed. A circa 1900 leaded-glass window, bought at Materials Unlimited in Ypsilanti, is in the kitchen. Several Art Deco light fixtures and grates were also repurposed.

“We like integrating old and new,” Roffey says, and that sentiment extends to their extensive art collection.

“We have a lot of old Peruvian art,” Danto explains, “but we also have a large art glass collection, which is very contemporary.”

Weavings from Bolivia, Ecuador, and Peru mingle with Asian art. Several of the artworks are displayed in lighted niches throughout the 7,500-square-foot house.

“A natural swale cuts through the middle of the property and actually bisects it,” Roger Young says. The solution was to create two sections, eastern and western pods, linked by a bridge. Echoing Frank Lloyd Wright’s organic-architecture philosophy of bringing the outdoors in, the architects created the home so that it’s flooded with natural light from copious windows and skylights.

Young also strove for an organic flow, “to create spaces that aren’t rooms. There’s a big difference.” That effect was achieved by fewer walls and doors, which delineate space.

The outdoor property was also designed with an eye toward the environment.

“The whole landscape is indigenous materials, and all the plants are drought-tolerant,” Young says. But, he adds, it was a tough sell to local officials.

“In Bloomfield Township, as in most municipalities, you have to have lawn,” he says. “So we had to convince them that these hedge grasses grow to a certain height and then stop growing. Eventually, they got on board.”

For Young, that victory was sweet, because it’s paying dividends.

“When you walk into the Bloomfield Township building department, there’s a huge LEED wall with testimonials on how others can go green,” he says. “They use this house as a case study.”

More details http://leedforhomesusa.com/drc/roffey.pdf

BY GEORGE BULANDA
http://www.detroithomemag.com/Detroit-Home/Summer-2011/Taking-the-LEED/

 PHOTOGRAPHS BY JUSTIN MACONOCHIE

 

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Qualified Allocation Plan (QAP) MSHDA LEED & Green Verification

can serve Michigan based affordable developers looking to secure funding for Single and Mult – family projects through out the state. MSHDA now has Low Income Housing Tax Credits (“LIHTC”) for developments that are promoting safe, decent, affordable housing. Integral to this effort are specific policies within the QAP that pertain to healthy, green, and sustainable building practices.

can consult, provide technical assistance and third party verification for those seeking to complete the MSHDA Affordable Green Standard criteria, Green Communities Certification and/or LEED for Homes Certification. will help project teams meet criteria, obtain tax credits and ensure a healthy, affordable, durable and efficient living situation for Michigan citizens.

Please contact us today and to learn more about this initiative or see MSHDA’s Green Policy  or Qualified Allocation Plan (QAP) Details.

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Free Webinars on LEED Homes. CEUs available!

, a leading LEED for Homes Provider working internationally, has partnered with Eco Achievers and developed an online educational offering available anytime, anywhere for no cost.

  • Introduction to LEED for Homes
  • LEED Multifamily Certification Options

Introduction to LEED for Homes (1 hour)

The US Green Building Council (USGBC) has developed the LEED for Homes rating system, which covers major home renovations and new construction of single-family homes, multi- family apartments and condos, and mixed-use residential buildings. In this class, the LEED for Homes rating system will be introduced, and then applied to case studies relevant to the local market. Common myths regarding level of documentation, cost, and credit requirements will be dispelled.

Available as an online course with CEUs – Register Now
The course is $10.00, but you can receive it free using the coupon code: LEED101

Alternatively, if you are interested in the Introduction to LEED for Homes presentation but do not need/want continuing education credits, you can view the recording anytime.

LEED Multi-Family Certification Options (1 hour)
LEED offers a number of options for the certification of multi-family housing. Trends in multi-family housing show an increased interest in high-density green urban living. This discussion will present the various LEED options and help participants choose the most appropriate certification path.

Available as an online course with CEUs – Register Now
The course is $10.00, but you can receive it free using the coupon code: LEED171

Alternatively, if you are interested in the LEED Multifamily Certification Options presentation but do not need/want continuing education credits, you can view the recording anytime.

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LEED for Homes OUTSTANDING PROGRAM COMMITMENT Winner.

Habitat for Humanity Kent County has won this years Green Build 2011 Award for Outstanding Program Commitment to LEED for Homes.   is proud to have served Habitat for Humanity in Kent County since their commitment in 2007 to Build all LEED for Homes Silver certified projects. Habitat Kent County has been raising the bar and is completing Gold LEED certified projects and they are on their way to complete a platinum.  Currently they have achieved

  • 85 Registered LEED Projects
  • 70 Certified LEED Projects
  • 61 Average HERS Rating

The spotlight project for their award was a  110-year-old single-family home in the historic Wealthy Heights neighborhood in southeast Grand Rapids. This home represents a beautiful example of affordable, sustainable, historic preservation. Along with the typical Habitat for Humanity volunteer labor force, a core team of four recent graduates of the Grand Rapids Public Schools Academy of Design & Construction assisted from start to finish. These young people learned how to rehab an historic home in the context of a challenging LEED for Homes project which achieved LEED Gold.

The 53 HERS score for this home was, at the time, the most energy efficient home built by Habitat Kent. This is noteworthy since the home is over a century old and was originally built to “breathe” so achieving such air-tightness wasn’t easy. This success is even more impressive considering the untrained, inexperienced labor-force of volunteers who rehabbed the home. Simply being located in a historic district also invited numerous challenges including usingwood windows (which are notoriously inefficient). Despite these challenges, the project team hit a home run with this home. Their recent dedication to be restorative to the Wealthy Heights Community  has lead to several projects that involved painting, remodeling, gut rehabbing, as well as building several new homes and creating community gardens. Habitat is completely revitalizing the area. Their highest achievement here is their commitment to constructing a net zero or near zero (currently) 5 bedroom home. This home features, ICF and SIP panel construction and has a solar hot water heater attached to the house. The homes HERS score tested out to be 35, one of the lowest in Michigan. They are still missing the Solar PV making a perfect promotion opportunity for any company willing to supply solar to this project.  Please contact Chris Hall if you are interested. CJHall@habitatkent.org. Due to Habitat for Humanity of Kent Countie’s commitment to LEED certification, they have been able to attract many more sponsors, donors and volunteers. They have also been able to achieve some great accomplishments. Deconstruction of homes literally saves tons of usable materials and items from heading to the landfill. These materials are re-sold at the HabitatReStore for a profit to build other homes. Habitat discovered that it costs approximately $8000 more to incorporate green building and zero-step entry into a Habitat home building per house, and that the long-term benefits to the family and the environment easily justify the expense. It is estimated (based on their earliest LEED Homes) that annual savings costs for electric, water, and heating will be at least $1,000 per home per year.  The extra money available every month eases the hard decision “food or heat?” for families who live close to the poverty line. Over the life of each homebuyer’s 25 year mortgage, the savings equates to $25,000 at minimum – money a family is able to invest into strengthening their future.Looking to start a LEED for Homes or a Green Building project within your Habitat Affiliate? Please contact today. We work with over 20 other Habitat Affiliates including Detroit, Chicago, Cincinnati and Indianapolis.

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Greenwood Green Home

View and Download complete project profile

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Design Charrette Grants for LEED for Homes

Pre-planning is critically important when designing and constructing a green building. encourages projects to use integrated design, bringing key members of the project team together often in the schematic design phase to discuss the project, set goals and accountability, and solve potential problems up front rather than during construction when its often more costly. Thanks to Green Communities, those who are pursuing LEED for Homes and participate in a Design Charrette, may be eligible for up to a $5,000 grant prior to the charrette.

Eligible Applicants

  • Open to 501(c)(3) nonprofits, tribally designated housing entities; and for-profit entities participating through joint ventures with qualified organizations.
  • Please note that applications for joint ventures must identify the nonprofit 501(c)(3) organization as the legal entity to receive the grant, if awarded funding.
  • The applicant and the development team must demonstrate their qualifications to successfully carry out the proposed development.

Target Projects

  • Projects must be subject to firm site control or evidence that site control is imminent. Applicant must identify whether proposed project site is an occupied or unoccupied property.
  • Projects must involve new construction of residential units or rehab at an estimated cost of $3,000 or more per unit.
  • Projects applying for pre-development Charrette funds must be in the early stages of planning or schematic design phase of development.

Intended Uses of Funds

Funds may be used to cover the cost of conducting a Green Communities Charrette. Expenses include: pre-qualified consultant fee for facilitation; consultant travel costs, not to exceed $1,000; meeting preparation costs, such as creating invitations, meeting and follow-up materials, venue and program support time all not to exceed a combined total of $800. Food is not an allowable expense.

Please note that consultants selected must adhere to the rate policy established by the federal provider of these dollars.

Grant Amounts

Grantees will be required to provide a match of 3:1 in private dollars. Match must be achieved at the beginning of the grant period of performance. Back up documentation must also be submitted to provide confirmation of these sources.

Grant Application and Approval Process

  • Submit Charrette Grant application. At application stage, applicants must identify the development goals, intended outcomes, and facilitator information. Please consult your Green Rater and/or LEED APH to discuss outcome of Charrette.
  • Receive acknowledgement from Enterprise regarding whether the grant has been approved, denied or approved with conditions. Because funds are limited, Enterprise will reserve the right to negotiate with grant applicants to determine the highest and best use of Green Communities grants in a specific project.
  • Execute a Charrette Grant Agreement with Enterprise.
  • Charrette Grant applications are reviewed once per month. Applicants will be notified within 4-6 weeks after submission.

More details at http://www.greencommunitiesonline.org/tools/funding/grants/charrette.asp?mkt_tok=3RkMMJWWfF9wsRokv63KZKXonjHpfsX64usqW7Hr08Yy0EZ5VunJEUWy24AIS

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South East Michigan LEED Gold Certified Home

‘It’s not that easy being green,” sang Kermit the Frog. While that’s often true when it comes to green building, it is definitely getting easier, say Lynn and Charlie Arnett of Grosse Pointe Park. The Arnetts and their four children, three of whom still live at home, recently moved into one of the Detroit area’s first new LEED (Leadership in Energy and Environmental Design) certified, green-built houses.

The family had been living in a nearby 1950s house and needed more space. They thought seriously about building, but empty lots are hard to find in older, established neighborhoods such as Grosse Pointe, and they weren’t sure they wanted to trade in the frustrations of an older house (asbestos, lead paint, wet basements) for the different but equally challenging issues of newer ones (formaldehyde, medium-density fiberboard).Both have long been interested in environmental issues. Lynn worked in environmental law in Washington, D.C., and Charlie, a teacher, jokes that he recently found a button for the first Earth Day in a box when they moved.

After much thought and plenty of research, they decided to look for a lot where they could build an environmentally conscious new home. Ultimately, that search led them to a 60-by-175-foot corner lot where a condemned 1920s Tudor had been torn down.“We decided we wanted to walk the walk, not just talk the talk,” says Charlie of their decision to build. Doing so had its challenges. Green building has been in the forefront of the news, but mainly in the commercial arena. Green residential building is still fairly uncharted territory, say the Arnetts, especially in Michigan. Still, they were determined to make it happen.

Once they found their lot, they enlisted the help of Joel Peterson of Insignia Homes, a Grand Rapids-based builder whom Lynn had worked with on a former house and who had experience in LEED-certified homes. He led them to Wayne Visbeen, a Grand Rapids-based architect known for designs that successfully blend past and present.

The Arnetts wanted the house to be green but also to blend with the older Tudors and colonials on the block. “It was very important to us that the house fit into the neighborhood,” Charlie says. “We had the architect and builder do a Grosse Pointe field trip before we started.”Priorities included a vintage-style screened porch off the kitchen as well as a large open living space encompassing the kitchen and great room. The house would have six bedrooms and 41/2 baths and the kind of detail — wood trim, glass-knobbed doors, a stucco fireplace, exterior shingles — often found in older homes. Underneath, however, the infrastructure would be green.

LEED-certified houses include things such as geothermal heat, an air recovery system and a long list of environmentally approved materials, including insulation, windows, carpet, even landscaping. “Indoor air quality is very important to us, so we opted for no-VOC paints or finishes, and insulation made of shredded newspapers,” Lynn says. LEED certification is awarded in levels, with points given for each area of compliance. (For more information, visit the U.S. Green Building Council’s website at www.usgbc.org.) The Arnetts are waiting to hear if they have achieved platinum status, the highest level given, and have been investigating the idea of installing cutting-edge solar shingles, a product Dow is pioneering.

Lynn spent hours researching materials and contractors. They struggled to find cabinetry for the kitchen that was formaldehyde-free, ending up with an Indiana company. “You really have to ask a lot of questions,” she says. “It was a big education for us, too.”It took less than a year to build the Craftsman-influenced home. Now that the house is done, they’ve been working with Grosse Pointe Park-based interior designer Fatima Beacham and trying to fill it with “green” furniture — another area that hasn’t quite hit the mainstream yet.

“The problem with a lot of new furniture is that it is built with medium-density fiberboard that contains formaldehyde,” Lynn says. Formaldehyde has been linked to many health ailments. They admit there were times they were tempted to give in and take the easier way. “Staying on track and not letting ourselves be pressured to compromise was challenging,” Charlie says.“There were times I was tempted to cave, but Lynn kept me going.”

While building green is a bit more expensive than standard construction, tax credits and governmental rebates help, and prices should decrease as demand goes up, the Arnetts say. For their family, going green has been the right choice. “Once you get started, you want to do it 100 percent,” Lynn says.“When it comes to residential construction, LEED is still in its beginning stages. We’d love to be a resource for other homeowners. Hopefully our experience will make it easier for the next folks who want to do this. Even choosing a low or no-VOC paint for your next project is a good start.

View complete project profile here

”The Arnetts recommend the following contractors and manufacturers:

Architect: Wayne Visbeen (www.visbeen.biz)

Builder: Joel Peterson, Insignia Homes (www.insigniahomes.us)

Kitchen cabinets: Mutschler Kitchens, Karen Rozanski (www.mutschlerkitchens.com)

Flooring: Chelsea Plank Flooring (www.plankflooring.com)

Carpeting: Mohawk SmartStrand (www.mohawkflooring.com/smartstrand)

Custom cabinetry: Dutch Made Cabinetry (www.dutchmade.com)

Paint: Sherwin-Williams no-VOC “Harmony” paint (www.sherwinwilliams.com)

Toilets: TOTO Dual Flush Toilets (www.totousa.com)

Landscaping: James Leamon Landscape Design, (313) 407-8137

Khristi Zimmeth is a Metro Detroit freelance writer and Homestyle’s Trash or Treasure? columnist.

From The Detroit News: http://detnews.com/article/20110218/LIFESTYLE01/102180306/Grosse-Pointers-build-certified-earth-friendly-home#ixzz1EOaEKWMz

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“River Escape” Home Tour – Pending LEED Platinum

n 11.11.11 come see an affordable home that was built to be 88% more energy efficient than and standard new code built home. This home is a Zero-Energy home that is projected to be a LEED for Homes “Platinum” project. The home is also a finalist for Green Builder Magazines 2011 Home of the Years.
Pending AIA Approval
Please RSVP with us at.
616.957.LEED (5333) or at
ehughes@imagedesignarch.com
“River Escape” Home Tour

November 11th at 10:00 am and 1:00 pm
7121 River Escape
Stanwood, Mi.
Sponsored by
Eric Hughes of Image Design, LLC
Adam Eerdmans of Turtle Walls
Tim & Dawn Gruss Home Owners

The “River Escape Project”

Resting in Western Michigan’s vacation wonderland, this home is located near the Muskegon River in Stanwood, Michigan with river access, thus the project name. This home is a site specific, 1,267 square foot Passive Solar Contemporary Style home built with BuildBlock ICF (Insulated Concrete Forms) from frost protected shallow foundation to the SIP roof. The exterior elevations of the home were designed with deeper roof overhangs, determined by using solar calculations, to both maximize and minimize the sun exposure based on the time of year. The exterior used two of our favorite products James Hardie FiberCement Siding and MiraTec trim. The interior of the home has stained concrete floor on the main level which makes for great thermal mass. The home was also designed with lifetime design principles and has zero step entries.

Part of the passive solar design is to have very few windows on the non-south sides of the home, to keep heat from escaping through them. That is why this homes attention to detail is spent on the Southside of the home, where most of the homes windows face south. The windows in this home are made by North Star (Canadian made) which uses a transparent low-E film between the panes of glass with a foam spacer to get a triple pane effect without the weight or waste of extra glass. The window U-value is .24 with a much higher Solar Heat Gain Coefficient (SHGC) on the South windows. In the winter, the sun will warm the living space during the day and shine on the concrete floors which will store some of the heat gained, for gradual release. The roof overhang will shade the house from excessive solar heat gain in the summer, and west-facing glass is minimized to reduce cooling needs in the summer. ICF construction was perfect for this project because with ICF’s there are no concerns with noise and wind. It is wonderful to quietly contemplate the winter storms swirling through the open fields and feel pleasantly comfortable. The “River Escape” project is a Zero Energy Home (ZEH) thanks to the Passive Solar Design, 4.1 kW of Photovoltaic, Solar Hot Water and a 98% efficient boiler for the radiant floor heat and hot water backup. The home is also pre-wired for future installation of a Wind Generator. This home only uses about 600 kWh of electricity per month and has been generating a minimum of 20 kWh of electricity per day and net-metering backwards every day since the home was completed in June. The home was built for $142.00 per square foot (before the 30% rebates from the Solar Hot Water, and Photovoltaic systems) making it more affordable for the general public. Besides the LEED for Homes “Platinum” certification (this project scored 32.5 points above “Platinum”) this home received 5+ Energy Star certification and a HERs score of 12. This is the lowest score ever tested in the State of Michigan making it the most energy efficient house in Michigan. This home is 88% more efficient than a conventional code built home. The home is also ZeroStep “Silver” Certified (Lifetime Design or Barrier Free) from Disability Advocates of Kent County Michigan. In addition this homes toilets, faucets and shower heads are super low-flow for superior water efficiency. The home also has low-VOC paints, adhesives and finishes and uses recycled content for the flooring, foundation, exterior walls, trim and siding. Every possible piece of unused material used in construction was recycled.

Key Sustainable/Green Features

• Rain Permeable Gravel Driveway.
• Lifetime Design (Barrier Free)
• Zero step entries.
• Energy Star North Star Triple Pane Windows.
• Energy Star LED & CFL lighting.
• Energy Star Ceiling Fans.
• Energy Star Appliances by Frigidaire.
• SIP Panel Roof
• Frost Protected Shallow Foundation (with R-20 Dow Insulation beneath it.)
• BuildBlock ICF Construction (with 40% Fly-Ash)
• Advanced Framing (Studs @ 24” o.c.)
• James Hardie FiberCement siding (with recycled content)
• MiraTec Trim (formaldehyde free, SCS Certified)
• Central Vacuum System (Greatly reduces in-door air pollutants)
• Concrete Floors through-out main floor. (Colored in the concrete mix)
• FSC certified Bamboo Flooring on second story.
• FSC certified stud interior walls.
• No-VOC Paints and primers.
• Low-VOC caulks and sealants.
• Amish Built Kitchen Cabinets from wood within 5 miles from the project site.
• Dual-Flush toilet by American Standard.
• Low flow shower heads and faucets.
• Pex Plumbing.
• Radon Venting.
• Radiant Heat Through-out Home.
• Life breath HRV (heat recovery ventilator)
• Passive Solar Design.
• Solar Hot Water. (30% Tax Rebate)
• 4.1kW of Photovoltaic (30% Tax Rebate)
• Pellet Stove (Back up Heat System)
• Pre-wired for a future Wind Generator.
• Pre-wired for future battery backup.

By Eric A. Hughes of Image Design, LLC

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10 Common Failures in LEED for Homes Projects

Avoid these errors to make sure you ace your final inspection but also these are just great all around tips for Green Building. LEED or not.

1. Manual J Equipment Sizing Calculations. Builders use Manual J calculations to determine the proper size of heating and cooling equipment based on a home’s size and tightness. Using the calculation properly is important in ensuring the equipment works efficiently in high-performance homes. Foss sees several common errors, however. One issue is when the calculation doesn’t reflect the home actually being built—the contractor just uses the defaults, or forgets to update the calculation even though the building has changed. Sometimes contractors will do the calculation retroactively, after the equipment is installed, or make one calculation that they use and another one “for the LEED people.”

“You lose the benefit if you’re just doing it for the paperwork,” Foss said. If you have questions, simply ask your rater—they’ve been through the LEED process before. “It’s better to ask questions before ordering the HVAC equipment,” she said.

Some common calculation errors to avoid: Make sure you have the right city listed, that the home’s infiltration is rated as “tight,” and that the insulation values of the walls and windows are accurate. And don’t try to mislead your green rater—it’ll just add time and frustration to the certification process.

2. Duct Leakage. LEED for Homes requires certified projects to reduce duct leakage to 6%, so it’s important to pay attention to detail. Look for duct boots that aren’t sealed to the drywall and places where the top of the duct is not sealed. Make sure installers seal connections with tape or mastic adhesive in addition to using a mechanical fastener—a zip tie won’t seal.

To avoid running into any problems, Foss suggested builders work with HVAC installers to make sure they know both how to properly install the equipment and how the testing will be performed. Seal the mechanical unit before it’s set in place, and test the system before close-in, especially if it’s the installer’s first time working on a LEED project.

3. Air Flow. Proper air flow around the home is important for even and efficient distribution of conditioned air, so these LEED credits help builders ensure their homes are comfortable throughout. Foss said one common problem is poor duct installation—kinked or sagging ducts, long runs, or too many bends. Another is missing air flow return pathways in the bedrooms.

Foss suggested some fixes to avoid any issues during certification. First, use the duct design. Ducts are a commonly changed site-built item, but following a plan can avoid errors. Second, discuss what type of start-up the HVAC contractor will perform and how they’ll be on the hook for the design they gave you. Third, install dedicated return jumper ducts or transfer grilles in rooms with a door. Using the Energy Star Version 3 HVAC installer checklist and companion guidebook can help ensure installation is completed properly.

4. Air Filters. Be ready for inspection by walking the site and looking for any of the original blue air filters that weren’t replaced with higher-MERV versions. Foss said green raters often see this issue as an indication the builder may have missed other details. “If the builder isn’t clear on it, how will the homeowner know?” she asked.

5. Bath and Kitchen Fan Exhaust. Foss said a common problem is that homes don’t meet the exhaust fan testing requirements of 50 CFM for bath fans and 100 CFM for kitchen fans. The most common reason is that the builder buys a bath fan with too low of a nominal rating. You can’t just buy a 50-CFM fan to meet the requirements, she said, because the rating doesn’t take into account the ducting or other obstacles. You’ll often need an 80- or 100-CFM bath fan to meet the testing requirements. A common issue in the kitchen is improper installation of the microwave, preventing the dampers from opening. Make sure different trades are communicating to double check that the fans work after installation.

To diagnose potential problems, turn on the fans and listen. If it sounds wrong, Foss said, something is going on. Try the toilet paper test—the exhaust fan’s air flow should be able to hold up a square of it. And finally, double-check to make sure dampers aren’t painted shut at the exterior.

6. Ventilation and Exhaust Controls. LEED requires mechanical ventilation, and the homeowner must know how to use it. Some buyers have an expectation that today’s green homes can be completely run from a smart phone, so ask them about their expectations. Think about how they’ll be using the system.

The right controls will be contingent on the ventilation strategy. Is it exhaust, supply, or balanced? Continuous or intermittent? Are other systems involved, such as the bath fan or air handler? For exhaust-only systems, a delay timer is helpful in the bathroom. And even if the bath fan is running continuously to meet ASHRAE requirements, you’ll probably need a boost switch to kick it into a higher mode after showers. If you’re using central ductwork with an energy recovery ventilator or heat recovery ventilator, make sure the ventilator interlocks with the air handler.

7. Air Sealing. Foss said the common issue she sees with air sealing is penetrations through the air barrier. “Make sure you think about what is the air barrier, and relay that to the trades so they know when they make penetrations,” she said. Decide who is responsible for penetrations. Will the plumber seal any holes he makes? Are you hiring an air sealing company? Also remember that spray foam is not a total air sealing package. You still need to seal between studs, for example. In multifamily projects, make sure there is no air movement between units, as well as between units and the hallway. Don’t assume fire stopping is the perfect air barrier.

To avoid issues, include the air sealing details in your plans. Assign responsibility and train all crews. Do a mock-up unit that the green rater can pre-inspect—this is often used as a training opportunity for the crews. Finally, consider purchasing a blower door test for yourself, and start testing.

8. Insulation. There are a number of easy ways for builders to go wrong with these LEED credits: missed insulation in tricky areas, differing R-values, batts compressed at the corners, and missed bays that are hidden by other batts are all common problems.
With spray foam insulation, look for even installation with no valleys in the middle. Measure the depth of the insulation while the truck is on site so subs don’t have to come back to correct any problems. Leave enough time before hanging the drywall to make corrections.

9. Project Team Communication. A common problem builders face, Foss said, is not updating project team members on any changes. On LEED homes, in particular, you need bottom-up understanding of what’s happening with the project. A change in one part of the house might affect the mechanical equipment selection, for example.

Write the LEED requirements into your specifications and follow them, Foss suggested. Assign responsibilities down to the last half point. Also decide upfront who will pay for fixes or re-inspections to avoid being left on the hook for the cost of a contractor’s error.

10. Documents and Submittals. Some LEED points require documents and records, such as product details and waste. Include documentation requirements in subcontractors’ scope of work or contract. Tying those requirements to payment can be an effective way to ensure the requirements are met, Foss said.

Presenting at an educational session at the recent Greenbuild Conference, Foss, managing partner of Washington, D.C.-based green building consulting company Everyday Green, recounted the inspiration for her presentation.

“The developer was upset because she had failed some of the items,” Foss said. “She said, ‘I wish I had known to look for these things beforehand.’ ”

To help other green building professionals avoid making that developer’s missteps—as well as the mistakes she made while rehabbing her own home to LEED standards—Foss listed the 10 most common issues she’s found during her LEED inspections:

Jeffrey Lee is Managing Editor of EcoHome.

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Numbers, Know-how and navigating LEED in affordable housing

Join USGBC for a free 3-part webinar series exploring the green affordable housing movement.

– Examine market examples to discover factors driving green affordable housing, as well strategies for success and the benefits to going green when tackling affordable housing projects.
– Explore the synergies between keeping design and construction costs down and building in a responsible, sustainable fashion.
– Identify tools and strategies to finance retrofits of existing multifamily developments while taking an in-depth look at affordable housing and LEED.

All sessions will be held from 1:00 to 2:30 PM EDT.

Oct. 20, 2011

Driving Smart Decisions in Green Affordable Housing

Nov. 3, 2011

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Dec. 8, 2011

LEED Certified Affordable Housing: It gets better every time

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Each session in this series will be registered for 1.5 hours of continuing education with AIA/CES SD/HSW, and GBCI CMP hours for LEED professionals.