scarsdale high school

System: Staycell ONE STEP® 255 Intumescent Spray Foam Insulation (MONOLITHIC System)
Application: Concrete Ceiling in Attic
Location: Scarsdale, NY
Project Size: 8,000 square feet

The Scarsdale High School renovation was part of the district’s school-wide energy efficiency initiative to improve building performance and reduce energy consumption. In addition to upgrades made to the lighting and HVAC equipment, detailed building envelope analysis identified significant heat loss thru uninsulated concrete roof panels and air leakage at the roof/wall transition. To control air leakage and insulate the roof panels, Staycell ONE STEP® 255 intumescent spray foam insulation was applied 2” thick to the sloped portions of the roof sealed to the top of the masonry wall.

Staycell ONE STEP® 255 is the ideal product for this application as it provides efficient thermal insulation, moisture/condensation control and air infiltration control in a single product.


 Provides superior R-value compared to other traditional materials such as fiberglass and cellulose
 Creates seamless air barrier that eliminates energy loss through air leakage
 Will not peel or flake
 Provides vapor retarder that controls moisture problems
 Environmentally friendly, containing no ozone depleting materials
 Installed by PSI certified Authorized Applicators 

Staycell ONE STEP® 255 was specified as it complies with the code and fire safety requirements of the International Building Code (IBC) when left exposed in occupied spaces without thermal barriers, providing the lowest installed cost of any spray foam system available.