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STC DATA

Cavity Walls (Exterior)

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STC Rating

4" Split Face Block

1" Airspace

2" Rigid Insulation

8" Cmu

62

4" split Face Block

1" Airspace

2" Rigid Insulation

8" CMU

1 1/2" wood furring
                            

1 1/2" Fiberglass insulation

4" Split Face Block

3.5" Airspace

2.5" Fiberglass Insulation

8" Cmu

65

79

4" Split Face Block

3.5" airspace

2.5" Fiberglass Insulation

4" C.M.U.

66

 Description

Drawing

STC Rating

8" Cmu

50

8" C.M.U.

2" Z-Bars

1/2" Drywall

51

8" C.M.U.

2" Z-Bars x2

1/2" Drywall

52

8" C.M.U.

1 1/2" Wood furring

1 1/2" Fiberglass insulation

1/2" Drywall

54

8" C.M.U.

3" Steel Studs

1 1/2" Fiberglass insulation

1/2" Drywall

59

8" C.M.U.

3" Steel Studs

1 1/2" Fiberglass insulation

1/2" Drywall

64

8" Hollow Core Floor Systems

STC

 Rating

8" hollow Core Slab

2:" Topping

53

Clay Brick Systems

5 3

STC

 Rating

4" Brick

45

4" Brick

2" Air space

50

6" Hollow Brick

Grouted solid

51

2 wythes of 4" brick

 Description

Drawing

52

 Rating

6" Block

45

6" Solid CMU

50

6" Block1

1/2" Wood furring

1 1/2" fiberglass insulation

1/2" drywall

55

10" CMU Systems

6 1

 Rating

10" CMU

4 7

10" Solid C.M.U.

4 9

 Description

Drawing

 Rating

12" CMU

51

12" Solid C.M.U.

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