• The request for extension work
• Ben Weil directed his assistance towards municipal buildings
• Assisted over 20 communities and counting, about 7 each semester
Why We’re the Best
• Students couple prior in class and in field experience surrounding
anything building science related: structure, materials, renewable
technologies, HVAC, and cost estimating.
• Students with a range of backgrounds in building construction
technology, architecture, sustainability science, and more!
• Our suggestions are put to good use.
Shelbourne Falls Overview
-Cowell Gym accounts for 23% of municipal energy
-Is twice as energy intensive as other gymnasiums
-Temperature setpoint is 58 degrees, and gym is
not used very often
-->Should not be using this much energy
Design: Gym area has two large stacks for
ventilation and the basement is a half below grade
and suffering from moisture and mold
Major problems identified: high rate of air
leakage, lack of insulation, steam heating system,
thermostat settings, thermal stratification, and
condensation on basement surfaces
Thermographic image of
steam radiator inside stack
Shelbourne Falls Analysis
-High rate of air leakage: stack designed for no to
lots of ventilation requirement changes. Air
exfiltration via stacks is the assumed air leakage
Heat loss estimation is about 279 MMBtu (approx.
$5,023) per year.
-Thermal Stratification: Operating 6 ineffective fans,
which use about 1577 kWh/year, or about $237.
-Moisture and mold in basement: stack bringing in
28 lbs of water in each hour from May to October,
constant dehumidifier operation would amount to
11,849 kWh or about $1777 per year. To stop mold
and moisture reducing uncontrolled air infiltration,
assuring a vapor barrier between the ground and
the basement space, and insulating the walls and
floor such that they remain above dew point.
Stratification in gym