How to Soundproof In-Between Joists

How to Soundproof In-Between Joists

Soundproofing Joists

In projects featuring timber or steel floors it is important to soundproof in-between the joists. When installed as a part of a complete acoustic floor system, the soundproofing material contributes to the overall acoustic performance of the floor and helps the development meet Part E Building Regulations.

Soundproofing Existing Joists

When working on a refurbishment project the existing floor should be removed to reveal the timber joists below. In a typical scenario the ceiling below is replaced with new acoustic plasterboards and resilient bars. The void that is created between the joists should then be filled with soundproofing wool. An OSB Chipboard is then laid on the top of the joists, followed by an acoustic floor board and a suitable acoustic flanking strip to complete the system. If the ceiling below cannot be replaced a direct to joist acoustic floor board may be installed on the sub-deck instead.

ResoDeck acoustic chipboard laid on a solid joist timber floor

Soundproofing New Build Joists

Soundproofing rolls should be installed in-between joists during the floor construction. It is appropriate to install the soundproofing rolls once the ceiling and joists have be constructed. An OSB chipboard should then be installed on to the timber joists followed by an acoustic floor board and acoustic flanking strips. The floor is now ready to accept floor finishes such as carpets and vinyl.

GYPDECK dry screed boards laid on an I-joist timber floor

Soundproofing Specialists

Installing soundproofing materials between joists will help your project meet Part E Building Regulations and provide optimum living conditions for occupants. For advice on soundproofing between timber joists and soundproofing your project as a whole speak to our technical experts today. Call us on 0116 464 7212 or email us today here.