Top 3 Soundproofing Solutions for Timber Joist Floors
Soundproofing timber floors requires limiting impact noise transfer with a cushioning layer to absorb impact vibration. Proven acoustic insulation solutions like SoundMats act like a floating floor, which help to absorb impact vibration before it enters the structure of the floor.
Add mineral wool between joists to reduce sound amplification and increase floor mass to block unwanted airborne noise by using different types of mass to block different frequencies.
Timber floor soundproofing solutions such as the Reverso SoundMat and SoundMat 3 Plus combine all of the above in one simple to install solution and perform well at reducing both impact and airborne noise. The recommendation would be to use the Reverso SoundMat for hard floor final finishes and the SoundMat 3 Plus for soft carpet finishes.
How to soundproof a timber joist floor
The 3 main principles of soundproofing:
Insulate Cavities
Add acoustic mineral wool within joists. This helps to prevent sound resonating and amplifying within cavities
Cushioning
Absorb impact vibrations at the source before they have chance to enter the structure
Mass
The addition of mass helps to create a barrier to block sound waves.
Using different types of mass also helps to block different frequencies of sound
Considerations when soundproofing a timber joist floor
3 criteria to help determine the correct soundproofing solution:
Final Floor Finish
Different solutions are more suited to different final floor finishes. Choose the most suitable solution depending not only on the noise you are trying to block, but also your final floor finish
Noise Issue
Is the unwanted noise impact vibration (e.g. footsteps) airborne (e.g. talking) or a combination of both? This will determine which soundproofing solution is most suited to your individual situation
Noise Source
Where is the noise coming from? Is the noise coming from above or below? If it's coming from above, do you have access to the floor above? It's always easier to soundproof at the source of the noise before it enters the structure
We don’t expect you to become an overnight soundproofing expert, that’s what we’re here for.
Timber Joist Floor FAQs
Visit the Knowledge Hub for more in depth info about how soundproofing works