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Building Science Corporation
USG Building Envelope Solutions Symposium Building Science April 16, 2015 2nd Law of Thermodynamics Joseph Lstiburek, Ph.D., P.Eng, ASHRAE Fellow Building Science Adventures In Building Science www.buildingscience.com Building Science Corporation Joseph Lstiburek 2 Heat Flow Is From Warm To Cold Moisture Flow Is From Warm To Cold Moisture Flow Is From More To Less Air Flow Is From A Higher Pressure to a Lower Pressure Gravity Acts Down Building Science Corporation Building Science Corporation Joseph Lstiburek 3 Lstiburek © buildingscience.com Joseph Lstiburek 4 1 of 15 USG Building Envelope Solutions Symposium Building Science April 16, 2015 Water Control Layer Air Control Layer Vapor Control Layer Thermal Control Layer Building Science Corporation Building Science Corporation Joseph Lstiburek 5 Building Science Corporation Building Science Corporation Joseph Lstiburek 7 Lstiburek Joseph Lstiburek 6 © buildingscience.com Joseph Lstiburek 8 2 of 15 USG Building Envelope Solutions Symposium Building Science Building Science Corporation April 16, 2015 Building Science Corporation Joseph Lstiburek 9 Building Science Corporation Building Science Corporation Joseph Lstiburek 11 Lstiburek Joseph Lstiburek 10 © buildingscience.com Joseph Lstiburek 12 3 of 15 USG Building Envelope Solutions Symposium Building Science Building Science Corporation April 16, 2015 Building Science Corporation Joseph Lstiburek 13 Building Science Corporation Building Science Corporation Joseph Lstiburek 15 Lstiburek Joseph Lstiburek 14 © buildingscience.com Joseph Lstiburek 16 4 of 15 USG Building Envelope Solutions Symposium Building Science Building Science Corporation April 16, 2015 Building Science Corporation Joseph Lstiburek 17 Building Science Corporation Building Science Corporation Joseph Lstiburek 19 Lstiburek Joseph Lstiburek 18 © buildingscience.com Joseph Lstiburek 20 5 of 15 USG Building Envelope Solutions Symposium Building Science Building Science Corporation April 16, 2015 Building Science Corporation Joseph Lstiburek 21 Building Science Corporation Building Science Corporation Joseph Lstiburek 23 Lstiburek Joseph Lstiburek 22 © buildingscience.com Joseph Lstiburek 24 6 of 15 USG Building Envelope Solutions Symposium Building Science Building Science Corporation April 16, 2015 Building Science Corporation Joseph Lstiburek 25 Building Science Corporation Building Science Corporation Joseph Lstiburek 27 Lstiburek Joseph Lstiburek 26 © buildingscience.com Joseph Lstiburek 28 7 of 15 USG Building Envelope Solutions Symposium Building Science Building Science Corporation April 16, 2015 Building Science Corporation Joseph Lstiburek 29 Building Science Corporation Building Science Corporation Joseph Lstiburek 31 Lstiburek Joseph Lstiburek 30 © buildingscience.com Joseph Lstiburek 32 8 of 15 USG Building Envelope Solutions Symposium Building Science Building Science Corporation April 16, 2015 Building Science Corporation Joseph Lstiburek 33 Building Science Corporation Building Science Corporation Joseph Lstiburek 35 Lstiburek Joseph Lstiburek 34 © buildingscience.com Joseph Lstiburek 36 9 of 15 USG Building Envelope Solutions Symposium Building Science Building Science Corporation April 16, 2015 Building Science Corporation Joseph Lstiburek 37 Building Science Corporation Building Science Corporation Joseph Lstiburek 39 Lstiburek Joseph Lstiburek 38 © buildingscience.com Joseph Lstiburek 40 10 of 15 USG Building Envelope Solutions Symposium Building Science Building Science Corporation April 16, 2015 Building Science Corporation Joseph Lstiburek 41 Joseph Lstiburek 42 It’s a Case of Black or White Building Science Corporation Joseph Lstiburek 43 Lstiburek © buildingscience.com Building Science Corporation Joseph Lstiburek 44 11 of 15 USG Building Envelope Solutions Symposium Building Science It’s a Case of Black or White Arrhenius April 16, 2015 It’s a Case of Black or White Arrhenius Every 10 degrees C – double the “badness” Building Science Corporation Building Science Corporation Joseph Lstiburek 45 Building Science Corporation Building Science Corporation Joseph Lstiburek 47 Lstiburek Joseph Lstiburek 46 © buildingscience.com Joseph Lstiburek 48 12 of 15 USG Building Envelope Solutions Symposium Building Science Building Science Corporation April 16, 2015 Building Science Corporation Joseph Lstiburek 49 Building Science Corporation Building Science Corporation Joseph Lstiburek 51 Lstiburek Joseph Lstiburek 50 © buildingscience.com Joseph Lstiburek 52 13 of 15 USG Building Envelope Solutions Symposium Building Science Building Science Corporation April 16, 2015 Building Science Corporation Joseph Lstiburek 53 Building Science Corporation Building Science Corporation Joseph Lstiburek 55 Lstiburek Joseph Lstiburek 54 © buildingscience.com Joseph Lstiburek 56 14 of 15 USG Building Envelope Solutions Symposium Building Science Building Science Corporation Building Science Corporation Joseph Lstiburek 57 Lstiburek April 16, 2015 © buildingscience.com Joseph Lstiburek 58 15 of 15
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