What's underneath a planted roof? Well, for the new fourth-
story plaza green roof deck built over the parking garage of the
condominium building at 1000 Lake Shore Drive in Chicago, the
architect/engineer, Wiss, Janey, Elstner and Associates, specified
installation of 5,000 sq. ft. of EPS insulation (Foam Control
Plus+ tapered 600 EPS) over rubberized asphalt waterproofing.
EPS, or expanded polystyrene, is a rigid plastic made from
petrochemicals in the form of "preexpanded polystyrene beads."
EPS is used for disposable trays, bowls, plates and those to-go
white plastic hinged-lid containers, plus for shipping "peanuts."
For building insulation purposes, EPS comes in rigid sheets 2x8 or
4x8 known as "bead-boards." The EPS boards insulate the garage
roof, provide compressive strength and create a slope for drainage.
According to the building contractor for this project, Eric Dexter of
Berglund Construction, the EPS large 4x8 sheets from ACH Foam
Technologies sped up the construction significantly.
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LASN Marketplace, April 2014
Decorative
Water
Features
I n f o r m a t i o n R e q u e s t # 4 3 4
I n f o r m a t i o n R e q u e s t # 7 0 7
I n f o r m a t i o n R e q u e s t # 7 6 4
I n f o r m a t i o n R e q u e s t # 4 4 6
I n f o r m a t i o n R e q u e s t # 4 6 2
I n f o r m a t i o n R e q u e s t # 2 1 6
aCh Foam technologies' tapered Foam
Control Plus+ 600 ePs insulation was specified
for the foundation for the green roof plaza deck
for this Chicago condominium building on Lake
shore drive.
Beneath the Green
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