Page 4 • July 31, 2019 • • Georgia...
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Page 4 • July 31, 2019 • www.constructionequipmentguide.com • Georgia State Supplement • Construction Equipment Guide The Details The building will consist of approximately 47,000 sq. ft. of programmable space, which includes nearly 37,000 sq. ft. of enclosed space. Public outdoor learning space includes an outdoor porch area (2,618 sq. ft.) and an accessible roof deck (1,000 sq. ft.). The roof garden (4,347 sq. ft.) will contain the honeybee apiary, pollinator garden and blueberry orchard. The remaining space (1,905 sq. ft.) is for loading and bike storage. The estimated cost per square foot is $397, based on total programmed space. Exactly 915 solar panels are being installed on the canopy over the building’s roof as the permanent power source. The projected energy use intensity is 34 kBTU/SF/YR, which is 66 percent more efficient than the average building of the same size and occupancy. The 330 kW (DC) solar array is expected to provide more than 450,000 kWh per year, which is more than 105 percent of the power needed for the building. The photovoltaic array is designed to generate 40 EUI, which will offset the build- ing’s 34 EUI. By producing more energy than the building consumes, the systems generate a net-positive energy facili- ty, making this one of the first net-positive buildings in the Southeast. A potable water system will collect rainwater on the roof and send it to the basement for treatment, after which it will be stored in a 50,000-gal. cistern until needed. By the Numbers Georgia Tech manages the project on its campus, welcom- ing input from The Kendeda Fund, architects Lord Aeck Sargent of Atlanta and Seattle’s Miller Hull Partnership, and the construction team headed by Skanska USA. Additional input comes from landscaper Andropogon; mechanical, electrical and plumbing engineer PAE and Newcomb & Boyd; greywater systems specialist Biohabitats; civil engi- neer Long Engineering; and structural engineer Uzun & Case. Subcontractors include Dennis Taylor and Company for excavation, Greater Georgia Concrete, Batchelor & Kimball for HVAC and plumbing, Southeastern Steel and Universal Timber Structures. Work began in February 2018 on the Atlanta campus, with a daily average of about 50 workers on site and a peak of 100, according to Matthew Williams, Skanska project man- ager. Skanska used a 120-ton road crane to set the rooftop air handling unit, and a smaller crane to set the structure, Williams reports. Several telehandlers were used, ranging from 60-ft. booms to a 120-ft. boom for installation of skin elements around the tight project site. Additional equipment utilized on the site for excavation and concrete activities included compactors, excavators, a front loader, concrete trucks, pumper trucks and skid steers. One of the challenges of the project has been space, of which there is little on site. “To overcome this challenge, we’ve coordinated subcon- tractors to share lifts and equipment on site to reduce the clut- ter of large machinery and scheduled the logistics of bringing equipment in and out constantly,” Williams said. Wet site conditions also have been a challenge. “We’ve isolated areas after rain events and utilized stone as much as possible to minimize de-mucking tasks,” Williams added. Timeline Fortunately, wet weather has not impacted the timeline of the Living Building. Work proceeds on schedule, with sub- stantial completion expected in 2019. Classes begin in January 2020 and certification is expected in 2021, or after at least 12 months of consecutive performance after full occupation. “There were no requirements for work around university classes,” Williams said, “but we were asked to perform site tours for Georgia Tech staff and public groups who signed up through Georgia Tech. We’ve worked long hours and week- ends to complete the project.” Materials In order to meet Living Building Challenge requirements, the team is following Materials Petal guidelines in sourcing Red List-free materials. The intent of the Materials Petal is to use non-toxic, ecologically restorative supplies. In addition to avoiding Red List items, imperatives include tracking embodied carbon from construction; using salvaged materi- als and responsibly sourced wood and stone; striving to elim- inate waste during construction; and sourcing materials from local industries. Thus, the Kendeda Building intentionally selected a limited materials palette — mostly wood, with limited use of steel and concrete — and chose to leave sev- eral systems exposed in order to limit unnecessary and potentially harmful materials. The Red List is a list of 22 worst-in-class materials or chemicals that pose the greatest risk to human and ecosystem health. Some commonly recognizable items include asbestos, formaldehyde, lead, mercury and PVC. The goal is to eliminate their use. Living Building Challenge-certified projects cannot contain Red List materials or chemicals. To avoid the use of these materials, the design-build team thoroughly vetted the proposed materials during design phases by selecting and specifying products that are docu- mented as being free of Red List materials or chemicals. Ga. Tech Anticipates 3.1 Living Building Challenge Cert see TECH page 6 TECH from page 1 Work began in February 2018 on Georgia Tech’s Atlanta campus, with a daily average of about 50 workers on site and a peak of 100, according to Matthew Williams, Skanska project manager. Nearly complete, the “Living Building” at Georgia Tech University is set to become the first structure in the state certified under the Living Building Challenge, the world’s most rigorous green building certification standard. Wood is the primary structural element of the building because it has one-sixth of the embodied carbon of steel or concrete.
Transcript of Page 4 • July 31, 2019 • • Georgia...
Page 4 • July 31, 2019 • www.constructionequipmentguide.com • Georgia State Supplement • Construction Equipment Guide
The DetailsThe building will consist of approximately 47,000 sq. ft.
of programmable space, which includes nearly 37,000 sq. ft.of enclosed space. Public outdoor learning space includes anoutdoor porch area (2,618 sq. ft.) and an accessible roof deck(1,000 sq. ft.). The roof garden (4,347 sq. ft.) will contain thehoneybee apiary, pollinator garden and blueberry orchard.The remaining space (1,905 sq. ft.) is for loading and bikestorage. The estimated cost per square foot is $397, based ontotal programmed space. Exactly 915 solar panels are being installed on the canopy
over the building’s roof as the permanent power source. Theprojected energy use intensity is 34 kBTU/SF/YR, which is66 percent more efficient than the average building of thesame size and occupancy. The 330 kW (DC) solar array is expected to provide more
than 450,000 kWh per year, which is more than 105 percentof the power needed for the building. The photovoltaic arrayis designed to generate 40 EUI, which will offset the build-ing’s 34 EUI. By producing more energy than the buildingconsumes, the systems generate a net-positive energy facili-ty, making this one of the first net-positive buildings in theSoutheast.A potable water system will collect rainwater on the roof
and send it to the basement for treatment, after which it willbe stored in a 50,000-gal. cistern until needed.
By the NumbersGeorgia Tech manages the project on its campus, welcom-
ing input from The Kendeda Fund, architects Lord AeckSargent of Atlanta and Seattle’s Miller Hull Partnership, andthe construction team headed by Skanska USA. Additionalinput comes from landscaper Andropogon; mechanical,electrical and plumbing engineer PAE and Newcomb &Boyd; greywater systems specialist Biohabitats; civil engi-neer Long Engineering; and structural engineer Uzun &Case.Subcontractors include Dennis Taylor and Company for
excavation, Greater Georgia Concrete, Batchelor & Kimballfor HVAC and plumbing, Southeastern Steel and UniversalTimber Structures.
Work began in February 2018 on the Atlanta campus, witha daily average of about 50 workers on site and a peak of100, according to Matthew Williams, Skanska project man-ager. Skanska used a 120-ton road crane to set the rooftop air
handling unit, and a smaller crane to set the structure,Williams reports. Several telehandlers were used, rangingfrom 60-ft. booms to a 120-ft. boom for installation of skinelements around the tight project site. Additional equipment utilized on the site for excavation
and concrete activities included compactors, excavators, afront loader, concrete trucks, pumper trucks and skid steers.One of the challenges of the project has been space, of
which there is little on site. “To overcome this challenge, we’ve coordinated subcon-
tractors to share lifts and equipment on site to reduce the clut-ter of large machinery and scheduled the logistics of bringingequipment in and out constantly,” Williams said.
Wet site conditions also have been a challenge. “We’veisolated areas after rain events and utilized stone as much aspossible to minimize de-mucking tasks,” Williams added.
TimelineFortunately, wet weather has not impacted the timeline of
the Living Building. Work proceeds on schedule, with sub-stantial completion expected in 2019. Classes begin inJanuary 2020 and certification is expected in 2021, or afterat least 12 months of consecutive performance after fulloccupation.“There were no requirements for work around university
classes,” Williams said, “but we were asked to perform sitetours for Georgia Tech staff and public groups who signed upthrough Georgia Tech. We’ve worked long hours and week-ends to complete the project.”
MaterialsIn order to meet Living Building Challenge requirements,
the team is following Materials Petal guidelines in sourcingRed List-free materials. The intent of the Materials Petal is touse non-toxic, ecologically restorative supplies. In additionto avoiding Red List items, imperatives include trackingembodied carbon from construction; using salvaged materi-als and responsibly sourced wood and stone; striving to elim-inate waste during construction; and sourcing materials fromlocal industries. Thus, the Kendeda Building intentionallyselected a limited materials palette — mostly wood, withlimited use of steel and concrete — and chose to leave sev-eral systems exposed in order to limit unnecessary andpotentially harmful materials.The Red List is a list of 22 worst-in-class materials or
chemicals that pose the greatest risk to human and ecosystemhealth. Some commonly recognizable items includeasbestos, formaldehyde, lead, mercury and PVC. The goal isto eliminate their use. Living Building Challenge-certifiedprojects cannot contain Red List materials or chemicals. To avoid the use of these materials, the design-build team
thoroughly vetted the proposed materials during designphases by selecting and specifying products that are docu-mented as being free of Red List materials or chemicals.
Ga. Tech Anticipates 3.1 Living Building Challenge Cert
see TECH page 6
TECH from page 1
Work began in February 2018 on Georgia Tech’s Atlanta campus, with a daily averageof about 50 workers on site and a peak of 100, according to Matthew Williams, Skanskaproject manager.
Nearly complete, the “Living Building” at Georgia Tech University is set tobecome the first structure in the state certified under the Living BuildingChallenge, the world’s most rigorous green building certification standard.
Wood is the primary structural element of the buildingbecause it has one-sixth of the embodied carbon ofsteel or concrete.
