![]() Can I do this and still use your Iso-Wall system?Ī: Yes, and, in fact, we can even help make your cable pass-through better suited for use in combination with the Iso-Wall system. Q: I have a recording studio and I want to have a cable pass-through built into the wall. We have at least one confirmed case of a building inspector approving our Iso-Wall system as an acceptable vapor barrier in a new construction home. This is what is required for an acceptable vapor barrier. If you are using the 2 layers of wallboard, including moisture resistant board, 1/2" gasket, and acoustic sealant as directed in the installation instructions, you have built an air/moisture-tight seal on that surface. ![]() If you are applying a vapor barrier to conform to building code, you may be able to get the Iso-Wall system itself to be considered an acceptable vapor barrier by your building inspector. Be sure to tuck the material far enough into the cavity so that it is no closer than 1 inch away from the resilient channel at any point (see FAQ immediately above). This leaves the stud faces exposed for placement of the Iso-Wall system. ![]() If you must place the material on the interior side of the frame, place it separately over each stud cavity, tucking the edges into the interior of the cavity and attaching it to the sides of the studs . Second, if you need to use a sheet of visquine or other material to cover the entire wall, place it on the opposite side of the frame from the side for which you are applying the Iso-Wall system. If you must place the backing toward the interior of the room, use wire insulation supports (as suggested in the instructions for wall installation step ) to hold the backing at least 1inch away from the resilient channel. First, if you can use insulation blanket with foil or paper backing, place the backing away from the interior of the room (see the FAQ immediately above) for which the Iso-Wall system is being applied. Q: What if I need to have foil or paper backing on my insulation or use a separate type of membrane as a vapor barrier?Ī: If you need to have a vapor barrier, you have several options. This allows deeper breathing ability and, hence, greater overall effectiveness. Second, we want to keep the air-flow chamber as large as possible directly behind the wall. This could create a situation where there may be a slapping sound heard from the vibration of the channel against the thin membrane. First, it is best to avoid the possibility of the paper or foil surface ever coming in contact with the resilient channel. Q: Your instructions state that I should use insulation blanket with no paper or foil backing. This will give you a continuous framed perimeter for attaching the ceiling Perimeter Gasket. Q: The installation instructions require that I attach the ceiling Perimeter Gasket to the nailer plate above the top plates on the wall, but what if my walls don't have a nailer plate above the top plates?Ī: In this case, you will need to place blocking between the ceiling joists at the perimeters of the ceiling. If you are planning on using 5/8" moisture resistant board on the ceiling, then you will need to adjust your system to place the resilient channels no more than 16" apart to be sufficiently close. If you are using 1/2" moisture resistant board as currently recommended in our instruction booklet, then placing the resilient channels no more than 12" apart, as stated in the ceiling instructions, is sufficiently close according to the 2000 USG Construction Handbook. In the case of the Iso-Wall system, the framing members for the wallboard are the resilient channels. ![]() Is this true?Ī: You can use MR board (green board) on ceilings as long as the framing members are sufficiently close to one another. Q: I've heard you're not supposed to put moisture resistant wallboard on ceilings. Q: Can I use different types and thickness of wallboard than those listed in the instruction booklet?Ī: Yes, but be sure to use different types and/or thicknesses for each of the two layers so that you don't double-up on any natural resonances associated with a particular wallboard. Soundproofing & Sound-Conditioning Frequently Asked Questions
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