|Re: Sound Class Transmission Rating||<– Date –> <– Thread –>|
|From: R Philip Dowds (rpdowdscomcast.net)|
|Date: Sat, 7 Mar 2015 07:57:44 -0800 (PST)|
Severe budgeting problems forced compromising on Cornerstone construction standards, so our walls and floor/ceilings are of the most basic assemblies: PARTITIONS between units are 5/8” firecode gypsum board each side of 2x4 or 2x6 studs, insulated. We are not happy. US Gypsum manuals put this kind of construction at STC 46. FLOOR/CEILING ASSEMBLIES between units are typically hardwood over structural plywood; 2x10 floor joists; and 5/8” firewood gypsum board on strapping. We are not happy. The manuals say STC 39 and IIC 56. To try to stay happier, we have learned be quiet in our units. A couple of years ago, I retrofitted one of our common room ceilings with an additional layer of 5/8” on resilient channels, and the upstairs occupant is much happier. RPD > On Mar 6, 2015, at 10:19 AM, LESLIE PETERSON <leslie.peterson [at] me.com> > wrote: > > > PLEASE INCLUDE COPY OF REPLY DIRECTLY TO: leslie.peterson [at] me.com > > Can anyone in existing multi-family cohousing tell me: > 1. What sound class rating/s do you have in your living units for a) > floors-ceilings and b) walls: > - Sound Transmission Class (STC, airborne sound), and > - Impact Insulation Class (IIC, impact sound)? > 2. How is this working for you and your fellow cohousers? > > I am looking for a NUMBER - and how satisfied you and/or your fellow > cohousers are. The STC (and possibly IIC) rating number should be in the > architectural plan and in contract/s with the subcontractor/s who built the > floors-ceilings and walls. > > I am NOT looking for info or suggestions on materials and design (e.g. > carpets vs no carpets, number of sheetrock layers, hollow wall designs, wood > vs cement construction, etc). > > I have read Cohousing-L threads on the topic from March, 2008 and February, > 2012 regarding acoustics which include indications of some unsatisfactory > experiences and some varying industry recommendations. However I do not see > specific info on what ratings have been built in multi-family cohousing units > and how cohousers experience their sound insulation. > > I am looking for specific info on: > 1) STC/IIC rating/s (a rating is a number) that have been implemented for a) > floors-celings and/or b) walls, and > 2) How satisfied people are with their acoustics (note that satisfaction > level is meaningful when related to a rating number only). > > Many thanks in advance to those willing to check their records! > Leslie > _________________________________________________________________ > Cohousing-L mailing list -- Unsubscribe, archives and other info at: > http://www.cohousing.org/cohousing-L/ > >
Sound Class Transmission Rating LESLIE PETERSON, March 6 2015
- Re: Sound Class Transmission Rating Jessie Kome, March 7 2015
- Re: Sound Class Transmission Rating R Philip Dowds, March 7 2015
Results generated by Tiger Technologies Web hosting using MHonArc.