Auralex Product FAQ16-19:Soundproof, U-Boats, Eliminating noise
Question 16~19: What can I use to soundproof the ceiling of my room? & What is the proper spacing for U–Boats? etc.
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Question #16: What can I use to soundproof the ceiling of my room?
The reason we included this question is to address the issue of single partition isolation versus whole–room isolation. www.Acoustics101.com goes into a lot more detail about this – room–within–a–room construction, etc. For the purposes of this FAQ page, we will tell you that isolating one surface of a room will rarely yield the necessary results. This is especially true if you are playing/recording live acoustic drums. In a basement studio, for example, the sound is not only going through the ceiling, but also ''flanking'' to the upstairs via the floor and walls. A complete room–within–a–room is the only way to maximize the sound isolation in a space such as this.
Question #17: What is the proper spacing for U–Boats?
This is asked very often. U–Boat spacing is as follows:
Joist Spacing = 24” o.c.* = U–Boat spacing 16” o.c. along the joist minimum and not to exceed 24” o.c.
Joist Spacing = between 12”–16” o.c. = U–Boat spacing 16” o.c. along the joist minimum and not to exceed 32” o.c.
Most (>99%) of applications will work fine with 16” o.c. spacing of U–Boats along the joist. Spacing further apart will improve low frequency isolation below 40 Hz. However, spacing should never exceed 32” o.c.
*o.c. stands for ”on center” and represents measuring spacing from center–to–center of, say, joists or studs (or U–Boats). This is to prevent confusion caused by sometimes erroneously measuring from edge to edge.
Question #18: How much weight will U–Boats support?
U–Boats have been placed under floors supporting quite a bit of weight. However, testing for compressive tolerances is expensive and to keep U–Boat costs down, we have never verified performance. We have discussed the properties of U–Boats with rubber experts and we have been assured that: “The framing member will fail before the U–Boat will fail.” This is good enough for us!
Question #19: How do I eliminate noise from my PC when recording
There are two companies Auralex recommends for special noise boxes designed to house PCs or MACs:
www.iso-box.com can customize cabinets based on your needs. Auralex products are utilized in box designs to maximize performance.
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