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Light workLoren Abraham
1993-2013
Loren AbrahamTimeline
Past Present Future
loren abrahamarchitecture with WM+P
School of architecture | Adjunct Slam 2012College of Design | University of Minnesota
HERMAN MILLER “GREENHOUSE” OFFICES & FACTORY William McDonough + Partners
Business Week/Architectural Record Awards 1996-1997
School of architecture | Adjunct Slam 2012College of Design | University of Minnesota
901 Cherry GAP Office Building
William McDonough + Partners
• Green Roof• Raised Floor – Displacement
Ventilation• Daylighting• Life Cycle Cost Analysis Model
School of architecture | Adjunct Slam 2012College of Design | University of MinnesotaLoren Abraham, AIA, LEED AP
Adjunct Assistant Professor
School of architecture | Adjunct Slam 2012College of Design | University of Minnesota
Life Cycle Cost Analysis
Loren Abraham, AIA, LEED APwith William McDonough + Partners
Summary of Cost Benefit Analysis
InitialCosts
$
Reduced
HVAC Costs
NetFirstCosts
AnnualEnergySaving
s
AnnualOperati
onSavings
Simple
Payback
Years
Green Roof 434,550
4,250 430,300
24,000 4,250 11
Underfloor Plenum
532,000
75,000 457,000
19,000 155,400 2.6
Daylighting 414,392
2,035 412,357
19,070 3,430 18
Combined 1,380,942
81,285 1,299,657
62,070 163,080 5.8
School of architecture | Adjunct Slam 2012College of Design | University of Minnesota
Gap Probable Productivity Gains
Loren Abraham, AIA, LEED APwith William McDonough + Partners
Wor
st
Mos
t Like
ly
Best Productivity $
Absenteeism $
10000100000
100000010000000
100000000
Most Likely Productivity Gains Benefit to Owner Productivity
% ImprovedAbsenteeism% Improved
Cost Benefit $
Underfloor air distribution (UFAD)
4 9 1,581,000
Daylighting 4 9 1,581,000
Combined 8 18 3,162,000
School of architecture | Adjunct Slam 2012College of Design | University of MinnesotaLoren Abraham, AIA, LEED AP
Adjunct Assistant Professor
A.J.L. CENTER FOR ENVIRONMENTAL STUDIES William McDonough + Partners
Net-Zero Energy building
Living Machine
Full Daylighting
Building as Teaching laboratory
Indoor and outdoor relationships
integrated green infrastructure
School of architecture | Adjunct Slam 2012College of Design | University of Minnesota
loren abraham 2001-2013abraham + associates architects
School of architecture | Adjunct Slam 2012College of Design | University of MinnesotaLoren Abraham, AIA, LEED AP
abraham + associates architects
abraham + associates architects public architectureHennepin County Brookdale Regional
CenterBrooklyn Center, MinnesotaIn association with Buetow & Associates, Inc., St. Paul,
Minnesota
School of architecture | Adjunct Slam 2012College of Design | University of MinnesotaLoren Abraham, AIA, LEED AP
abraham + associates architects
School of architecture | Adjunct Slam 2012College of Design | University of MinnesotaLoren Abraham, AIA, LEED AP
abraham + associates architects
School of architecture | Adjunct Slam 2012College of Design | University of Minnesotaabraham + associates architects
Celebrating light
School of architecture | Adjunct Slam 2012College of Design | University of Minnesotaabraham + associates architects
Daylighting Strategies Implemented
Figure A: Schematic Section showing the daylighting strategies employed.
Figure C: Small punched openings positioned high along mainstreet allow direct sunlight into non-critical task areas and the resulting light and shadow create movement and interest. The openings are beveled to optimize light and minimize uncomfortable contrasts between window and wall.
Figure D: The condition at the new and existing building interface presents an opportunity to create clerestrories at the high-low roof intersection. The clerestory on the left faces north and brings in soft diffuse light while the clerestory on the right faces west.
Figure E: Existing clerestories in the renovated portion of the regional center were retained and re-glazed with new higher performance glazing for improved daylighting performance. They allow daylight in the areas of the building core that would otherwise be windowless.
Figure B: Prismatic glass redirects intense rays of light coming from the West up onto the plaster scoop.
School of architecture | Adjunct Slam 2012College of Design | University of Minnesotaabraham + associates architects
Daylighting Strategies Implemented
Figure 1: Shafts of daylight stream into West Rotunda Interior providing a feeling of well-being as well as valuable information.
Figure 2: High clerestories in the library at”Mainstreet” provide glare free abundant light to the room below without the problems of direct light. The vertical surfaces bounce and diffuse the light
Figure 3: Sloping the ceiling has the same effect as maintaining the higher level throughout the space with the added advantages of greater clearance above the ceiling for mechanical systems where it is needed and the ceiling is brighter than it would be if flat because it reflects incident horizontal light much better.
Figure 4: A highly efficient reflective film called SOLF (short for solar optic lens film) made by 3M, optimizes the effectiveness of these light shelves in the Library which bounce light up onto the sloped ceiling providing more even illumination in the space. They also reduce glare near the windows
Figure 5: By providing a graduated “frit” pattern on the glass above the light shelf instead of using the solar shade, we ensure that there will always be illumination for the light shelf and the frit reduces heat gains similar to the shade system but with far less cost.
Figure 6: The molded plaster light “Scoop” in the Courts waiting area effectively softens and distributes light not only to this space but the adjacent rooms as well.
School of architecture | Adjunct Slam 2012College of Design | University of MinnesotaLoren Abraham, AIA, LEED AP
abraham + associates architects
abraham + associates architects green roof architecture
School of architecture | Adjunct Slam 2012College of Design | University of MinnesotaLoren Abraham, AIA, LEED AP
abraham + associates architects
Minneapolis Central Library Green RoofArchitects: Pelli and Architectural Alliance Landscape Architect: Kestrel Design Group
Loren Abraham, AIA, LEED APabraham + associates architecture
School of architecture | Adjunct Slam 2012College of Design | University of Minnesota
Green Roof Interpretive Center and Garden Classroom
Loren Abraham, AIA, LEED APabraham + associates architecture
School of architecture | Adjunct Slam 2012College of Design | University of Minnesota
Final Design Scheme
GREEN ROOF PLAN
Loren Abraham, AIA, LEED APabraham + associates architecture
School of architecture | Adjunct Slam 2012College of Design | University of Minnesota
Grand Opening 2010
Loren Abraham, AIA, LEED APabraham + associates architecture and planning
Design Team::Dewey Thorbeck, Design ArchitectESG Architects, Managing ArchitectAbraham + Associates Architects, Sustainable Design ArchitectKestrel Design Group, Landscape Architect
Loren Abraham, AIA, LEED APabraham + associates architecture and planning
MASTERPLAN
Loren Abraham, AIA, LEED APabraham + associates architecture and planning
Loren Abraham, AIA, LEED APabraham + associates architecture and planningLower Level
Touch and SeeGreenHouse
Researching Nature
SunkenCourt
Unexcavated
Main Entry Level
Upper Level
Roof Top Plan
Offices
Green Roof Terrace
Loren Abraham, AIA, LEED APabraham + associates architects
abraham + associates architects religious architectureRiver of Life Church Renovation and AdditionHastings, Minnesota
Loren E Abraham,, RAabraham + associates
Interior buildout and furniture design build project
Brightech Conference Room and TableMinneapolis, MN
Loren Abraham, AIA, LEED APabraham + associates architecture and planning
Zero Impact Sustainable Strategies
Showcase Home
Barott HouseColumbus Township, Minnesota
Loren Abraham, AIA, LEED APabraham + associates architecture and planning
Zero Impact Sustainable Strategies
Showcase Home
Barott HouseColumbus Township, Minnesota
Loren Abraham, AIA, LEED APabraham + associates architects
abraham + associates architects residential architecture
loren abraham, aia with dgp architects, Charlottesville, VA
residential architectureTall Oaks, Charlottesville, VA
Loren AbrahamInitiatives and Service
• Zero+ Campus Design Project 2010-2013
• Minnesota Renewable Energy Society Board 2007-2009
• Sustainable Buildings Industries Council Chair 1991-1993
• Initiated ASTM Green Buildings Committee (E51) 1992
• AIA National COTE scientific advisor ERG 1990-1992
• Greening of the White House Initiative 1992-1996
• Founding member US Green Building Council 1993
• LEED Guidelines Committee 1993-1995
School of architecture | Adjunct Slam 2012College of Design | University of Minnesota
Loren AbrahamDesign Research and Product Development• Product Design - 9 Patents• Ecological Product
Development– C2C Protocols, MBDC, 1996– Designtex Fabric, MBDC, 1996
• Software and Publications– Energy 10 Software, 1996– DOE Energy Design Tools, 1996– Sustainable Building Technical
Manual, USGBC, PTI, 1996– Living Spaces: Ecological
Building and Design, 1999– Whole Building Design Guide
Loren Abraham, AIA, LEED APAdjunct Assistant Professor
1991-1999 Other Work
C2C designtex fabric