COMFEN 4.0: IECC 2009 Baseline Energy Performance

► Boston Baseline Energy Performance by Wall Orientation (40% Window to Wall Ratio)

W S E N

COMFEN 4.0: IECC 2009 Baseline Energy Performance

► Boston Baseline Energy Performance by Wall Orientation (40% Window to Wall Ratio)

W S E N

COMFEN 4.0: IECC 2009 Baseline Energy Performance

► Boston Baseline Energy Performance by Wall Orientation (40% Window to Wall Ratio)

W S E N

COMFEN 4.0: IECC 2009 Baseline Energy Performance

33.72kBtu/ft2-yr

-22.86%

43.05kBtu/ft2-yr

-1.51%

40.08kBtu/ft2-yr

-8.32%

43.71kBtu/ft2-yr

Base Case

West Wall South Wall East Wall North Wall

► Boston Baseline Energy Performance by Wall Orientation (40% Window to Wall Ratio)

W S E N

COMFEN 4.0: IECC 2012 Baseline Energy Performance

► Boston Baseline Energy Performance by Wall Orientation (30% Window to Wall Ratio)

W S E N

COMFEN 4.0: IECC 2012 Baseline Energy Performance

► Boston Baseline Energy Performance by Wall Orientation (30% Window to Wall Ratio)

W S E N

COMFEN 4.0: IECC 2012 Baseline Energy Performance

► Boston Baseline Energy Performance by Wall Orientation (30% Window to Wall Ratio)

W S E N

COMFEN 4.0: IECC 2012 Baseline Energy Performance

► Boston Baseline Energy Performance by Wall Orientation (30% Window to Wall Ratio)

32.12kBtu/ft2-yr

-20.11%

39.85kBtu/ft2-yr

-0.87%

38.01kBtu/ft2-yr

-5.45%

40.20kBtu/ft2-yr

Base Case

West Wall South Wall East Wall North Wall

W S E N

COMFEN 4.0: IECC 2012 Baseline Energy Performance

► Boston Baseline Energy Performance by Wall Orientation (40% WWR with Daylighting Controls)

W S E N

COMFEN 4.0: IECC 2012 Baseline Energy Performance

W S E N

► Boston Baseline Energy Performance by Wall Orientation (40% WWR with Daylighting Controls)

COMFEN 4.0: IECC 2012 Baseline Energy Performance

W S E N

► Boston Baseline Energy Performance by Wall Orientation (40% WWR with Daylighting Controls)

COMFEN 4.0: IECC 2012 Baseline Energy Performance

W S E N

► Boston Baseline Energy Performance by Wall Orientation (40% WWR with Daylighting Controls)

30.69kBtu/ft2-yr

-25.60%

41.11kBtu/ft2-yr

-0.35%

40.08kBtu/ft2-yr

-2.86%

41.25kBtu/ft2-yr

Base Case

West Wall South Wall East Wall North Wall

COMFEN 4.0: IECC 2009 vs. 2012 Baseline Energy Performance

► Boston Baseline Energy Performance - Prescriptive Code Comparison for West Wall

W W W W

COMFEN 4.0: IECC 2009 vs. 2012 Baseline Energy Performance

► Boston Baseline Energy Performance - Prescriptive Code Comparison for West Wall

W W W W

COMFEN 4.0: IECC 2009 vs. 2012 Baseline Energy Performance

► Boston Baseline Energy Performance - Prescriptive Code Comparison for West Wall

W W W W

COMFEN 4.0: IECC 2009 vs. 2012 Baseline Energy Performance

► Boston Baseline Energy Performance - Prescriptive Code Comparison for West Wall

40.20kBtu/ft2-yr

-8.03%

41.25kBtu/ft2-yr

-5.62%

31.55kBtu/ft2-yr

-27.83%

43.71kBtu/ft2-yr

Base Case

IECC 200940% WWR

IECC 201230% WWR

IECC 201240% WWR

w/ Daylighting Controls

IECC 2009/2012Opaque

Wall

W W W W

COMFEN 4.0: IECC 2009 vs. 2012 Baseline Energy Performance

► Boston Baseline Energy Performance - Prescriptive Code Comparison for South Wall

S S S S

COMFEN 4.0: IECC 2009 vs. 2012 Baseline Energy Performance

► Boston Baseline Energy Performance - Prescriptive Code Comparison for South Wall

S S S S

COMFEN 4.0: IECC 2009 vs. 2012 Baseline Energy Performance

► Boston Baseline Energy Performance - Prescriptive Code Comparison for South Wall

S S S S

COMFEN 4.0: IECC 2009 vs. 2012 Baseline Energy Performance

► Boston Baseline Energy Performance - Prescriptive Code Comparison for South Wall

S S S S

32.12kBtu/ft2-yr

-4.75%

30.69kBtu/ft2-yr

-8.97%

30.83kBtu/ft2-yr

-8.55%

33.72kBtu/ft2-yr

Base Case

IECC 200940% WWR

IECC 201230% WWR

IECC 201240% WWR

w/ Daylighting Controls

IECC 2009/2012Opaque

Wall

COMFEN 4.0: IECC 2009 vs. 2012 Baseline Energy Performance

E E E E

► Boston Baseline Energy Performance - Prescriptive Code Comparison for East Wall

COMFEN 4.0: IECC 2009 vs. 2012 Baseline Energy Performance

E E E E

► Boston Baseline Energy Performance - Prescriptive Code Comparison for East Wall

COMFEN 4.0: IECC 2009 vs. 2012 Baseline Energy Performance

E E E E

► Boston Baseline Energy Performance - Prescriptive Code Comparison for East Wall

COMFEN 4.0: IECC 2009 vs. 2012 Baseline Energy Performance

E E E E

► Boston Baseline Energy Performance - Prescriptive Code Comparison for East Wall

39.85kBtu/ft2-yr

-7.43%

41.11kBtu/ft2-yr

-4.51%

31.49kBtu/ft2-yr

-26.86%

43.05kBtu/ft2-yr

Base Case

IECC 200940% WWR

IECC 201230% WWR

IECC 201240% WWR

w/ Daylighting Controls

IECC 2009/2012Opaque

Wall

COMFEN 4.0: IECC 2009 vs. 2012 Baseline Energy Performance

► Boston Baseline Energy Performance - Prescriptive Code Comparison for North Wall

N N N N

COMFEN 4.0: IECC 2009 vs. 2012 Baseline Energy Performance

► Boston Baseline Energy Performance - Prescriptive Code Comparison for North Wall

N N N N

COMFEN 4.0: IECC 2009 vs. 2012 Baseline Energy Performance

► Boston Baseline Energy Performance - Prescriptive Code Comparison for North Wall

N N N N

COMFEN 4.0: IECC 2009 vs. 2012 Baseline Energy Performance

► Boston Baseline Energy Performance - Prescriptive Code Comparison for North Wall

N N N N

38.01kBtu/ft2-yr

-5.15%

40.08kBtu/ft2-yr

-0.00%

31.69kBtu/ft2-yr

-20.94%

40.08kBtu/ft2-yr

Base Case

IECC 200940% WWR

IECC 201230% WWR

IECC 201240% WWR

w/ Daylighting Controls

IECC 2009/2012Opaque

Wall