Building Science for Architects Introduction
Building Science for Architects
Introduction
Betsy Pettit, AIA
? 2005 Building Science Corporation
PR-0510a: BuildBoston 2005--Building Science for Architects Introduction
Page 1 of 24
Why Do Architects Need to Understand Building Science?
Q: What is Building Science?
A: The study of heat flow, air flow and moisture flow through the building enclosure
? 2005 Building Science Corporation
PR-0510a: BuildBoston 2005--Building Science for Architects Introduction
Page 2 of 24
The requirements for our buildings have changed
? We live in a society where every citizen deserves healthy, affordable, comfortable and durable homes and where the population is steadily increasing
? We demand more comfort and control of our interior environments than we used to so will not tolerate conditions that we used to tolerate
? We have a limited supply of energy (Hubbard's Curve) and so we have to think about energy conservation
? 2005 Building Science Corporation
PR-0510a: BuildBoston 2005--Building Science for Architects Introduction
Page 3 of 24
What is different about the way we build today?
? We have added thermal insulation
? Tigher Building Assemblies
? We have gone from board sheathing to sheet goods, reducing air leakage into and out of assemblies
? We have removed active chimneys and replaced them with power vented sealed combustion furnaces.
? We have become an air conditioning society (and that requires ducted air distribution systems)
? We have more new products to deal with, and these new products are getting combined in new ways
? 2005 Building Science Corporation
PR-0510a: BuildBoston 2005--Building Science for Architects Introduction
Page 4 of 24
What Happens When Buildings Don't Work?
? We waste energy ? We waste materials ? People are uncomfortable ? Conditions are unsafe ? Conditions are unhealthy ? Components or systems fail
? 2005 Building Science Corporation
PR-0510a: BuildBoston 2005--Building Science for Architects Introduction
Page 5 of 24
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