www.mrca.org  —  Midwest Roofer
21
TECHNICAL & RESEARCH
their designs. Considerations for structural loading, wind 
uplift resistance, roof drainage, insulation values, and 
building occupancy have always been required; however, 
they are not often accurately analyzed or calculated.
Balancing design and practicality
In recent years, increased demands have also risen 
from the way roofs are used. Some view roofs as prime 
opportunities to implement landscaping, additional building 
mechanical and operational equipment, stormwater 
retention systems, and energy production equipment (solar 
and wind). Some of these have become requirements 
and are included in municipal codes to “green” the roof 
surfaces and reduce the negative aspects of large, low-
slope roof spaces. How roof design and construction are 
with these new demands on roof space is a challenge from 
a roofing design and engineering perspective. Providing 
viable solutions to roofing contractors to accommodate 
these innovations in the roof space must be the objective 
of the roof design professional.
Looking to the future of roof construction practice, 
designers must be able to continuously identify solutions 
that balance roof installation with sound building science 
and engineering principles. With the most recent demands 
by governments for decarbonization, CO2 reductions, 
energy consumption reductions, and sustainable land and 
building stewardship, owners are more motivated than 
ever to engage professionals with proven experience in 
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Completed modified bitumen membrane built-up roof 
replacement at a municipal fire hall.membrane built-up 
roof replacement. 
Continued on page 22

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