Regular sealants lead to cracks and shrinkages- which will result in sound coming in, ruining your soundproofing dreams. If your window frames perform poorly, or you have structural issues, acoustic glazing can be ineffective.

The insertion of new windows that are similar in appearance to those you already have in your property. The ROCKWOOL FIREPRO® Acoustic Intumescent Sealant is a fire stopping resource for thin linear joints and sealing penetrations where they pass through fire rated divisions. I began looking at ways to improve the sound quality of my home and to make a soundproof office for myself.

It holds its elasticity and pliability when cured to prevent sound wave penetration, helps to decouple partitions, thus improving soundproofing. The caulking prevents sound leakage by remaining flexible and sealing openings where noise transfer occurs. It’s applied to cracks, gaps, and crevices just as you would with standard caulk, but as well as being a sealant, it provides a barrier against sound.

Another option, although I have never heard of it being done, might be to glue Mass Loaded Vinyl over the new tiles. This is glazing that has been specially designed to prevent noise intrusion and is layered with PVB to further dampen sound.Acoustic caulk is most commonly used in conjunction with other soundproofing materials, such as acoustic foam or fiberglass insulation. Used around wall perimeter joints and seams and to seal the vapor barrier, it will damp noise transmission and improve the STC of a wall system up to a rating of 60. It also absorbs the vibration that’s created from the sound in the room as well, giving it a two-pronged attack when used for soundproofing.

The best acoustical sealant stays flexible and pliable permanently, sticks to everything, seals wall perimeters around utility boxes, and is easy to clean up. A single layer of acoustic plasterboard will reduce noise by around 35db as long as you seal all the gaps. In most conservation areas you will be allowed to upgrade to soundproof windows as long as the new frames are the same style, design and material as the old windows.As a specialized acoustic sealant, STOPGAP Acoustical Sealant may be relatively more expensive compared to standard sealants.

However, the glass used in windows is relatively thin, meaning that it will not do much to soundproof your home.Another option (not as good) is to get a good, non-cracking, non-shrinking, paintable caulking and fill the gap.