QuietRock Advantage
QuietRock results in lower cost, additional sellable floor space, improved performance, and unsurpassed field reliability over any other traditional methods.
Installed Cost Comparison for Common Demising/Party Wall Assemblies
| |
| | QuietRock | Double Gypsum | Resilient Channel | Soundboard | Staggered Studs | Double Studs |
| Side A |
QuietRock 525 |
5/8" Type X
&
5/8" Type X |
5/8" Type X
&
RC 24" OC |
5/8" Type X
&
Soundboard |
5/8" Type X
&
5/8" |
5/8" Type X |
| Frame Construction |
Sgl. Wd. 2x4
24OC
&
3-1/2" Insul. |
Single Wood 2x4
24" OC
&
3-1/2" Insul. |
Single Wood 2x4
24" OC
&
3-1/2" Insul. |
Single Wood 2x4
24" OC
&
3-1/2" Insul.
|
Staggered
Wood
&
6" Insul. |
Double Wood
&
2X 3-1/2"
Insul. |
| Side B |
5/8" Type X |
5/8" Type X
&
5/8" Type X |
5/8" Type X |
Soundboard
&
5/8" Type X |
5/8" Type X
&
5/8" Type X |
5/8" Type X |
| STC1 |
51 |
42 |
49 |
49 |
52 |
59 |
| Typical Field STC (FSTC) |
49 |
41 |
43 |
44 |
47 |
53 |
| Thickness of wall (inches) |
4.8 |
6.0 |
5.3 |
6.0 |
7.4 |
9.3 |
Floor area, 30' demising wall
(sq feet) |
11.9 |
15.0 |
13.1 |
15.0 |
18.4 |
23.1 |
| Lost sellable space per 30' party wall |
0.0 |
3.1 |
1.3 |
3.1 |
6.6 |
11.3 |
Weight
(lbs per SF) |
5.5 |
9.7 |
5.5 |
10.1 |
8.5 |
6.6 |
| National Average, Costs |
| Materials |
$2.55 |
$1.83 |
$1.37 |
$3.03 |
$1.63 |
$1.78 |
| Labor |
$3.31 |
$4.28 |
$4.26 |
$4.40 |
$3.83 |
$4.40 |
| Total Labor and Materials, $/SF |
$5.86 |
$6.11 |
$5.63 |
$7.43 |
$5.46 |
$6.18 |
| Lost sellable floor space, at $200/SF |
$0.00 |
$2.60 |
$1.04 |
$2.60 |
$5.47 |
$9.38 |
| Total Assembly Cost, $/SF |
$5.86 |
$8.71 |
$6.67 |
$10.03 |
$10.93 |
$15.56 |
| Urban Construction, Costs* |
| Materials |
$2.86 |
$2.05 |
$3.39 |
$2.40 |
$1.83 |
$1.99 |
| Labor |
$4.57 |
$5.91 |
$6.07 |
$6.31 |
$5.29 |
$6.07 |
| Total Labor and Materials, $/SF |
$7.43 |
$7.96 |
$9.47 |
$8.70 |
$7.11 |
$8.07 |
| Lost sellable floor space, at $250/SF |
$0.00 |
$3.26 |
$3.26 |
$3.26 |
$6.84 |
$11.72 |
| Total Assembly Cost, $/SF |
$7.43 |
$11.21 |
$12.72 |
$11.96 |
$13.95 |
$19.78 |
|
Source: RSMeans Building Construction Cost Data, 66th Annual Edition 2010, for volume purchases
1 STC values provided are based on testing according to the ASTM standard E-90 at accredited laboratories
* Using a materials factor of 112 (112% of national average) and a labor factor of 138
About Serious Materials
QuietRock Drywall 
