Pinewood Elementary School
Marysville, Washington

ImageThis project involves the side by side comparison of two existing portable classrooms at Pinewood Elementary School in Marysville, Washington. The classrooms were already built and sited when BAIHP became involved, and neither are built to BAIHP standards. PS 5 is a newer unit and represents the most energy efficient current practice unit available on the market and was constructed and sited in 2000. Unlike other school districts who use heat pumps this school district uses electric resistance heating and economizer cooling. PS 2 is the 1985 model portable. Construction differences between the standard classroom and the more energy efficient classroom are listed in the table below.

 

 

 

 

 

 

 

 
wg
infoAll data is downloaded daily to FSEC via modem. Data summaries can be accessed online at the InfoMonitors web site. Detailed data queries and graphs can also be generated through FSEC's WebGet database.

Marysville, Washington Portable Classrooms
Construction Comparison of Standard and Energy Efficient Classrooms
Characteristic
Standard Classroom PS2
Energy Efficient Classroom PS5
Floor Insulation
R-11
R-30
Wall Insulation
R-11
R-19
Ceiling Insulation
R-19
R-38
Windows
Double Pane with Al Frame
Double Pane Low-e with Vinyl Frame
Exterior Doors
Metal
Metal
Lights
T-12/Mech
T-12/Mech
Heating System
Electric Resistance 2-5 kW
Electric Resistance 12.25 kW
Cooling System
SEER 8
N/A
Ventilation
450 cfm
500 cfm
Outside Dimensions
32 X 26
32 X 26
Outside Square Footage
832 SF
832 SF
Inside Dimensions
30' 9 X 24' 4"
30' 9" X 24' 4"
Inside Square Footage
746 SF
746 SF
Volume
6341 CF
6714 CF
Infiltration at 50 Pa
9.4 ACH
19 ACH