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  King Pavilion Iowa State University, College of DesignKing Pavilion Iowa State University, College of Design


RDG Planning & Design
301 Grand Avenue, Des Moines, IA 50309

General Description

Location: Ames, Iowa
Date Bid: Apr 2008 Construction Period: Aug 2008 to July 2009
Total Square Feet: 22,000 Site: .9 acres.
Number of Buildings: One.
LEED® Platinum
Building Size: First floor, 11,000; second floor, 11,000; total, 22,000 square feet.
Building Height: First floor, 15’; second floor, 15’; light monitor, 6’; total, 36’. Basic Construction Type: Addition/Structural steel/Cast-in-place.
Foundation: Cast-in-place, slab-on-grade, re-used existing concrete site walls. Building envelope: CMU, curtainwall, metal panels. Roof: Membrane, vegetated. Floors: Concrete, polished concrete exposed. Interior Walls: CMU, metal stud drywall, cast concrete exposed. Projected and/or modeled energy usuage KBTU/SF/yr: 80.

Construction Team

Structural Engineer: Charles Saul Engineering - 4308 University Avenue, Des Moines, IA 50311
General Contractor: Miron Construction Company, Inc. - 9440 Atlantic Drive S.W. #3, Cedar Rapids, IA 52404
Mechanical & Electrical Engineer: MEP Associates, LLC - 2900 43rd Street, #100, Rochester, MN 55901
Cost Estimator: Stecker-Harmsen, Inc. - 510 S. 17th Street, #110, Ames, IA 50010

The project challenge was to create a relatively small addition to the rear of the existing six-story College of Design facility.

The building program includes housing Iowa State University's Freshman Core Design program and second year Architecture, Landscape Architecture, and Interior Design studio classrooms that would be able to facilitate student interaction, and exploration of ideas.

The project is sustainably designed and has achieved a LEED® Platinum certification. One of the project's main goals is to create a "living laboratory" that will demonstrate sustainability to the students learning in the facility.

The design solution presented is of a "Pavilion" design, pulled slightly away from the main building and organized as a two-story form. Open studio classroom environments are efficiently organized around a central core space that function as flexible experimentation space. The center volume allows natural daylight to penetrate deep into the center of the building to the lower level. Clerestory and full height corner perimeter windows captures daylight into each studio classroom.

The building will essentially require no electric lighting during daytime hours. The use of a vegetated roof on the facility reduces heat island affect and storm water management needs on the property.

The building was built on existing concrete site walls that became the foundation walls for the addition. Concrete foundation walls, footings, and floor slab are insulated with 2-inches of rigid insulation. As the building is depressed into the site, a soil berm is also providing additional passive insulation for two sides of the building. Concrete was chosen as a material because it is a regional material, and it also provided recycled content. Floor slabs were polished and left exposed as the interior finishes for increased life cycle value to the owner, lower maintenance requirements, and no VOC's to impact IAQ.

The building utilized PPG's Solarban® 60 glazing, Low-E insulated panels. This provided great solar heat gain value and also has high visibility rate for daylight potential. A ceramic frit and metal sunscreen were implemented to protect glazing with a west exposure helping to reduce solar heat gain. The rest of the facade was constructed of 2-inch insulated metal panels over continuous rigid insulation with building wrap, fastened to 6-inch metal studs. The stud cavity was filled with 6-inch cotton bat insulation. The cotton bat insulation is 100% recycled cotton material and is also a rapidly renewable material. The building's envelope had a significant contribution to daylight and view, energy efficiency, as well as recycled content percentage.

The roof is an acoustic composite deck system. The metal deck is left exposed, eliminating the need for additional ceiling finish materials. The deck/structure is flat and has a minimum of 4-inch rigid insulation with additional built up insulation to provide drainage slope. The pavilion has an extensive vegetated roof system that is applied over an 80mil PVC membrane. A green roof was chosen as it provides multiple benefits to the project: reduces storm water runoff, reduces summer cooling load, and provides a "teaching tool" and research opportunity for students and faculty.  

Product Information
Metal Panels: Kingspan Benchmark Roofing: Sarnafil Polished Concrete: Retroplate Tile: American Olean
Lighting: Architectural Lighting Works, Edison Price
Curtainwall, Entrances & Storefronts: Kawneer
Windows, Daylighting: Wausau Glass: PPG Solarban® 60

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