3 Focus Areas for Effective Noise Isolation in Multifamily Units

Today’s renters are more cautious than ever and look for various factors when searching for a multifamily unit. In addition to usual considerations, such as amenities, location, building size, and parking facilities, “indoor noise” is another factor ruling their decisions. That is the primary reason owners and stakeholders need to think on the lines of noise isolation when planning to give a makeover to their properties. Moreover, all new and remodeled multifamily properties need to measure the sound privacy in between the multifamily apartments according to the various Building Codes of the United States. Leading the conversation further, in this post, we look at the three key areas to check in a multi-family apartment when planning a renovation project. Read on.


Airborne noise leaks are the easiest to detect. By standing close to the walls and checking whether there is any sound coming from the wall, anybody can check if the walls of a multifamily property are soundproof. If any wall has leaks, you may hear a louder sound when you stand close to the wall. If sound comes from the base of the apartment, check if the floor is caulked or there is a gypsum board. If the base is not caulked, ensure that you caulk it to make the apartment sound-proof. If you have a carpeted floor, the baseboard needs to be positioned above the carpet to insert a knife blade. In case the blade is approximately ⅜” or hits something hard and doesn’t have any caulking, it implies the floor is not caulked.


Windows are one of the prime areas through which sound waves enter any apartment. If the apartment has operable type windows, for instance, you need to check if the windows close tightly and the weather stripping is intact. If the windows have cracks or gaps through which air can enter, ensure that you get the cracks sealed. In addition, check wall insulation and the frames of the window for gaps. Before the window casings are installed, ensure that there is proper insulation between the wall and frame. To detect whether the space is well insulated, place your ears close to the frame. If you don’t find any of the problems mentioned already in the blog and the room is still not soundproof, the problem may be with the type of glass you are using.

Floor and Ceilings

Floor and ceilings can be a pathway for airborne sound transmission. As a result, it may be wrong to assume that the floors and ceilings have been constructed and designed to provide airborne isolation and noise could still be a problem. Carpeting provides a good amount of sound isolation. Install an impact sound absorbing floor underlayment to isolate the floor and subfloor structure.

Last Few Words

Those are some of the effective ways to control noise, especially if you have a multifamily property. Before you make your property sound proof, you need to take the help of multifamily property contractors who specialize in internal and external renovations. If you are planning to renovate your property, hire an exterior renovation specialist with an in-depth understanding of all aspects of exterior renovations, starting from minor repairs to repainting, and from roofing to landscaping.