3/26/2009: Baffles & Bamboo Flooring
These baffles will keep the cellulose insulation in place. Foam around the edges will prevent windwashing through the baffles.
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Bamboo flooring was brought into the house to adjust to indoor conditions before installation.
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3/26/2009: Duct Chase
This duct chase will be topped with plywood and foam-sealed to prevent attic infiltration through this notorious leakage area.
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3/26/2009: Attic
From the attic, the air sealing and additional foam insulation around the skylight can be seen.
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Drywall joints in the attic and all framing joints are foam sealed in the attic.
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3/26/2009: Skylight
Bathroom skylight is drywalled and ready for paint.
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Foam insulating box for the bathroom skylight, as seen in the attic. Students went a little overboard with the foam insulation and installed it vertically up to the roofline.
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3/26/2009: Cabinetry
Recycled mahogany cabinetry adorns the mud room walls.
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Plumbing rough-in.
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3/26/2009: Retaining Wall
Recycled plastic retaining wall material will be installed soon.
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Trenching has been dug in preparation for the retaining wall in the back of the lot.
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3/26/2009: Spouting
Spouting will bring rainwater from the roof to the rainwater harvesting system.
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Spouting is connected to bring rainwater from the roof into the rainwater storage tanks.
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2/1/2009
Exterior in the snow
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Together with their instructor, two HVAC students mount the HRV unit between two joists in the basement.
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1/26/2009
HVAC installation
An LCCTC student seals a rigid duct with butyl rubber-backed aluminum tape. The tape is heated and a squeegee is used to ensure the butyl rubber fills leakage areas.
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HVAC Instructor Steve Doman helps students complete the ductwork installation.
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1/26/2009 continued
Two students prepare the Heat Recovery Ventilation equipment for mounting.
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1/1/2009
Almost finished…
Exterior in the snow
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The parking pad for the borough park, located across the street from the home, is installed.
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1/1/2009 continued
Although a direct vent fireplace will be installed, a full chimney was constructed to give masonry students the experience.
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Trim work is being completed.
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1/1/2009 continued
Header hangers created some bulging issues with the drywall, which was removed and routed to alleviate the problem.
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Recycled plastic retaining wall blocks awaiting installation.
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6/20/2008
The following posters, detailing the green technologies and practices used in the home, were featured at the Parade of Homes in June. Also see additional posters below.
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06/16/2008: A Sucessful Parade
Tubular skylight bathes upstairs hallway in natural light.
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Finger-jointed trim uses small, fast-growing trees instead of old-growth lumber.
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06/16/2008 continued
Displays throughout the home educate tour participants about the green features of the home.
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A mock-up in the garage highlights some of the green features of the building.
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6/14/2008-6/22/2008: LCCTC on Parade
Everybody loves a parade!
The LCCTC home was a popular stop on the Central PA Parade of Homes. Participants got the unique opportunity to learn more about the various green features of the home, which was part of the reason the project earned the National Green Building Award for Group Research Advocate of the Year.
During the open house, displays throughout the home educate tour participants about the green features of the home.
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A display in the garage highlights some of the green features of the home.
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5/22/2008: Odds and Ends Wrapping Up
Stone facade installation has begun
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Two tubular skylights have been installed. Curbing has been installed for the master bathroom roof window.
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5/22/2008 continued
Jump ducts equalize pressure across doorways and streamline the distribution of air around the house. They are an integral part of the home's high efficiency HVAC system.
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The tank will store solar heated water. If needed, water temperature is boosted by one of two tankless water heaters. Monitoring equipment will help researchers track home performance.
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4/10/08: Chimney & Skylight
Masonry chimney is being installed to give students masonry experience. A direct-vent fireplace will be installed for efficiency and indoor air quality.
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One tubular skylight has been installed.
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4/10/08: Siding, Stonework, & Basement Access
Fiber cement siding and stonework in progress.
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Bilco doors have been installed over ICF basement access.
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2/19/08: Exterior Work, Solar Installation, & Insulation
Windows have been trimmed on the exterior.
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Metal flashing beneath trim at interior corner.
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2/19/08 continued
Siding installation begins at rear of house.
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Solar tubes on ground before installation.
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2/19/08 continued
A special lubricant is applied to the top of the header to facilitate installation and subsequent heat transfer.
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A student worker inserts the tube into the header while instructor Curt Gibble helps guide the tube.
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2/19/08 continued
After the tube is inserted into the header, it is clipped in place by hand with these simple straps.
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Installed solar rooftop panel.
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2/19/08 continued
Rim joist was fitted with leftover 2 inch foam board and then covered with 2 inches of spray foam insulation.
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Caulking at bottom plate helps prevent air infiltration.
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2/19/08 continued
Cellulose insulation in the wall cavity combined with spray foam at rim joist will provide a well insulated wall with good rim joist air sealing. Note insulation at window header.
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Corner detail.
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1/29/08: Exterior
Exterior without students.
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1/28/2008: Deconstruction Complete
Deconstruction complete.
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1/25/08: Baffles
Baffles prevent blown cellulose insulation from getting into the eave area and blocking ventilation.
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1/24/08: Deconstruction
Deconstruction.
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Deconstruction continues.
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1/24/2008 continued
Construction materials are sorted by deconstruction firm.
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1/8/2008: Old House Deconstruction & Metal Roof Installation
Old house deconstruction has started.
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Students and staff work together to install standing seam metal roof.
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1/07/2008: Breezeway & Soffit
Breezeway connects the house and garage.
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Soffit install.
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11/21/2007: Rainwater harvesting system installation is finalized, interior ductwork and plumbing continue
A rainwater scrubber removes debris from water before it runs into the rainwater harvesting tank. Debris flows to the left outlet into the sewer. The lid on the rainwater scrubber will be flush with grade when landscaping is completed.
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The rainwater harvesting tank is in ground and covered with gravel.
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11/21/2007 continued
Two central return ducts will deliver air back to the air handler.
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Jumper ducts will balance pressure across doorways.
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11/21/2007 continued
The framed rear wall of the garage.
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Framed front wall of the garage.
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11/6/2007: Plumbing work continues
Students continue plumbing manifold and supply line installation, and begin installing the rainwater harvesting system.
The completely-installed plumbing manifold. The tankless water heater is shown on right.
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The plumbing system includes a secondary cold-water inlet (at bottom) accepts water from the rainwater harvesting tanks and delivers it to the toilets only.
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11/6/2007 continued
Two students guide the first rainwater harvesting tank into place.
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The second rainwater tank is placed into the ground via crane.
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11/6/2007 continued
As it is installed, the second rainwater tank is guided onto the gravel pad that lines the trench.
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The students and instructor ensure the rainwater harvesting tanks are level.
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10/26/2007: Work resumes
With class back in session, work resumes on the home.
The home features a PEX plumbing system including a plumbing manifold (supplied by Manabloc). After leveling the manifold, students use the manufacturer's template to drill holes for plumbing lines.
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A manufacturer's representative helps students determine where to run hot and cold piping.
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10/26/2007 continued
A student uses a simple tool to connect the PEX supply lines to the manifold.
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Cold PEX water lines are bundled and run neatly through the joist area.
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10/26/2007 continued
The area behind the tub or shower on an exterior wall is a common source of air leakage into walls. This area will be sealed before the tub is set, to minimize this.
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Drilling of a 450-foot well for geothermal system loop begins.
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6/10/2007
The following posters, detailing the green technologies and practices used in the home, were featured at the Framing Tour in June. Also see additional posters above.
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6/9/2007
The home features a ZIP System™ roof.
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6/8/2007: Successful Framing Tour
Local building professionals took advantage of the unique opportunity to get a "behind the walls" look at the various green building products and processes used in the home to date. Instructors and manufacturers were on hand to provide demonstrations, answer questions, and explain the impact of the choices made.
Completely flashed window opening.
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The outside of the home, after foam insulation was applied. Rainwater harvesting tanks can be seen in the foreground.
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5/29/2007: You're Invited!
Framing Tour: A Behind the Walls Look
Friday, June 8, 2007
7AM - 1PM
432 Old Market Street
P.O. Box 537
Mount Joy, PA 17552
http://lcctc.org/mapsdirections.php (follow directions to Mt. Joy campus)
Drop in to see how green building starts! Technical experts, LCCTC instructors, and manufacturers’ representatives will be on-hand from 7AM to 1PM, June 8th to lead tours through the LCCTC Building Green residential project and to answer questions about green home building. This event will introduce to green building products and practices for residential design, development, and construction. Several green building technologies will be on display including advanced framing, concrete forms, jobsite recycling, and rainwater harvesting. The NAHB Model Green Home Building Guidelines which guided the design of the green home project, will be highlighted.
According to the NAHB Model Green Home Building Guidelines, no matter what the climate, energy efficiency is a top priority in most existing green building guidelines/programs. Moreover, as the cost to heat and cool a home becomes more unpredictable, it is advantageous to every homeowner to be “insulated” from inevitable utility bill increases. As with all aspects of these guidelines, the greatest improvements result from an approach that examine the interaction of all the building systems—what the experts call a "systems" approach. Energy performance does not end with increased R-values, the use of renewable energy, and/or more efficient HVAC equipment. Rather, there needs to be a balance between these features and careful window selection, building envelope details, air sealing measures, duct sealing, and proper placement of an air barrier from foundation to attic to create a truly high-performance, energy efficient home that is less expensive to operate and more comfortable to live in than a conventional home.
Bring your framing subcontractors, employees, vendors, and associates for learning and light refreshments. We look forward to seeing you.
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2/22/2007: Framing
Laminated strand lumber (LSL), an engineered wood product made from trees that would not otherwise be large, straight, or strong enough for ordinary dimensional lumber, is used for the rim joist. A foam gasket material is visible between the ICF foundation and the pressure-treated sill plate. A dimpled, hard-plastic membrane attached to to the ICF provides a drainage plane and protection from underground moisture.
Exterior foundation and rim joist.
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Engineered I-joists resting on sill plate.
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2/22/2007 continued
Engineered I-joists are attached to a double Laminated Veneer Lumber beam by joist hangers to form the stair opening.
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An LVL "squash block" is nailed to each I-joist end to help carry loads from the wall above. The squash block could have been made from dimensional lumber, but scrap LVL was available and used instead.
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1/19/2007: ICF construction continues with the concrete pour
Concrete pour begins while students look on. A second concrete truck is ready in the background.
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Three students fill ICF forms with concrete.
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1/19/2007 continued
Student worker helps ensure concrete slumps to bottom of forms by tapping out entrained air.
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Student workers finish area beneath window, which was filled with concrete.
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1/4/2007: ICF installation begins
Insulated concrete forms (ICFs) await installation while students keep busy nearby.
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A group of students prepares a form to fit into the stack.
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1/4/2007 continued
Students use the metal tracking to shim the forms before stacking the full wall.
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Students work with Reward Wall Systems (the ICF manufacturer) representative to install rebar in an ICF corner.
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12/12/2006: Sitework wraps up
Site excavation is complete.
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With the site excavation complete, students prepare site for form-a-drain installation.
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12/12/2006 continued
Students cut form-a-drain to size.
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Students carefully install form-a-drain for footers.
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12/6/2006: Sitework underway
Carpentry students marked the outline of the house in preparation for digging.
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LCCTC instructor Craig Turnbaugh uses new machinery to start excavation.
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12/6/2006 continued
Two student equipment operators excavate temporary driveway and stockpile topsoil for winter storage.
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Student operator piles topsoil on adjacent lot for winter storage. Pile will be covered with wood chips to prevent erosion.
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12/6/2006 continued
Filter fabric is laid on the excavated driveway to control sediment.
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Student equipment operators distribute stone over the filter fabric.
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10/3/2006
About 100 people gathered for a ceremony commemorating the start of construction of this educational green building demonstration project, including:
- Lancaster County Career and Technology Center students, faculty, and administrators
- Lancaster County Commissioner Howard “Pete” Shaub
- Project leaders from the Pennsylvania Department of Environmental Protection, the Lancaster County Building Industry Association, the Pennsylvania Housing Research Center, and the NAHB Research Center
- The Governor's Green Government Council
- Suppliers
- Members of the community
Project organizer Kim Patrick addresses the crowd at the ceremony while LCCTC students and faculty and project leaders break ground.
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You're invited to the groundbreaking!
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