Tackle Noisy Neighbours With JCW Acoustic Supplies

How Soundproofing Can Help Reduce Noise from Neighbours

Noise from an adjoining property can be frustrating, particularly when conversations, music, television or footsteps are heard regularly in bedrooms and living areas.

The person creating the noise may not realise how clearly it travels between the properties. Normal household activity can become noticeable when a separating wall, floor or ceiling provides limited acoustic resistance or contains gaps and other weak points.

Home soundproofing can help reduce noise passing between neighbouring properties, but it is important to identify the type of noise and its main transmission route before selecting a system.

Installing products on the most obvious surface without considering the wider construction may produce limited results. A successful project needs to take account of the building, weak points, flanking transmission and the quality of the installation.

Speak to Your Neighbour Where Appropriate

Where it feels safe and appropriate, a calm conversation may be a useful first step. Your neighbour may be unaware that their television, speakers, footsteps or furniture movement can be heard so clearly.

Small changes can sometimes make a useful difference, such as:

• Moving speakers or televisions away from a shared wall
• Using isolation pads beneath speakers or exercise equipment
• Adding rugs or suitable underlay to hard floors
• Avoiding furniture movement during quieter hours
• Closing doors more carefully
• Reducing music volume at particular times

These measures may not resolve a weakness in the building itself, but they can complement a soundproofing system. Acoustic treatment should support considerate behaviour rather than be seen as a substitute for it.

Identify Whether the Noise Is Airborne or Impact-Based

Neighbour noise generally falls into two main categories: airborne noise and impact noise. Some problems involve both.

Airborne noise

Airborne noise travels through the air before reaching a separating wall, floor or ceiling. Common examples include:

• Conversations and raised voices
• Televisions and radios
• Music and home entertainment systems
• Dogs barking
• Kitchen appliances
• Children playing

Reducing airborne noise typically involves increasing mass, improving airtightness and introducing separation between layers of the construction.

Impact noise

Impact noise is produced when an object makes direct contact with the building. Examples include:

• Footsteps from a flat above
• Furniture being moved
• Objects being dropped
• Doors closing
• Exercise equipment
• Children running on a hard floor

The impact creates vibration that can travel through joists, concrete slabs, walls and ceilings. It generally requires resilient layers or greater structural separation rather than relying solely on additional board.

Find the Main Sound Path

The area where noise is heard most clearly is not always the surface through which it first entered. Sound may travel through several connected parts of a property.

Possible transmission routes include:

• Party walls
• Floors and ceilings
• Timber joists and structural beams
• Chimney breasts and fireplaces
• Loft spaces and suspended ceiling voids
• Pipework and ventilation ducts
• Electrical sockets and service penetrations
• Internal doors and communal corridors

Sound that bypasses the main separating surface is known as flanking transmission. For example, noise may travel around an upgraded wall through the floor, ceiling or adjoining side wall.

This means that treating the party wall alone may not address every route. Listening at different locations and considering the complete room construction can help identify which areas require attention.

Reducing Noise Through a Shared Wall

Voices, television and music from an adjoining house are often heard through the party wall. A suitable wall soundproofing system may combine acoustic insulation, resilient separation, additional mass and carefully sealed joints.

The correct system will depend on whether the existing wall is solid masonry, lightweight blockwork, timber stud or another form of construction.

Creating separation between the new lining and the existing wall can help reduce direct vibration transfer. Resilient bars, isolation clips or independent frameworks may be used within suitable systems, depending on the space available and the required level of treatment.

JCW Silent Board Plus may form part of certain wall or ceiling build-ups, but one acoustic board should not be treated as a complete answer. The board, supporting structure, cavity treatment, perimeter details and surrounding sound paths must work together.

Reducing Footsteps and Noise from Above

Noise from an upper flat or room may include both impact and airborne sound. Footsteps and dropped objects generate impact vibration, while conversations and television noise travel through the air.

The most effective place to control impact noise is normally at the floor above, close to the source. A floor soundproofing system may incorporate an acoustic underlay, resilient deck or floating floor, depending on the construction.

Where the floor above cannot be accessed, ceiling soundproofing may help reduce both airborne sound and some impact noise.

Options may include:

• Acoustic insulation between timber joists
• Resiliently mounted ceiling boards
• Isolation clips and channels
• An independent ceiling beneath the existing structure

An independent ceiling can provide greater separation but will reduce the available room height. Ceiling treatment from below may also be limited by impact vibration travelling through surrounding walls and structural elements.

Noise Travelling Up Through a Floor

Music, voices and household activity from a lower property can pass upwards through the ceiling and floor construction. Gaps between floorboards and openings around heating pipes or cables may contribute to the problem.

A suitable treatment may involve insulation between joists, added mass, resilient floor layers or a combination of these measures.

Floor work can affect doors, skirting boards, fitted furniture, thresholds and finished floor height. More substantial systems may therefore require an experienced installer or competent tradesperson.

Check Gaps, Sockets and Service Openings

Small openings can weaken the acoustic performance of a wall, floor or ceiling. Areas worth inspecting include:

• Gaps around pipes and cables
• Board edges and perimeter joints
• Cracks around skirting boards
• Back-to-back electrical sockets
• Openings into floor or ceiling voids
• Poorly sealed junctions between different surfaces

A flexible acoustic sealant can be used around suitable joints and perimeters as part of a complete system.

Acoustic sealant does not add enough mass or separation to soundproof a surface by itself. Its purpose is to close air paths that could otherwise reduce the performance of the main construction.

Service penetrations may also need suitable fire-stopping treatment. Acoustic improvements should not compromise the fire resistance of a separating wall, floor or ceiling.

Are Doors Part of the Problem?

Noise may sometimes enter a flat through a communal hallway or pass between rooms through an internal doorway. However, a replacement door should only be recommended where the doorway has been identified as a significant weak point.

The performance of a soundproof door depends on the door leaf, frame, perimeter seals, threshold and installation quality.

Installing a specialist door will offer limited benefit if most of the noise is travelling through a shared wall, floor or ceiling. The doorway must therefore be assessed as part of the complete sound path.

Soundproofing Flats, Apartments and HMOs

Noise transmission can be particularly complicated in flats and converted buildings. Several homes may share structural beams, floor slabs, ceiling voids and service routes.

A sound heard through one wall may have entered through the floor above or travelled along a connected partition. Conversions can also contain hidden voids, incomplete partitions or lightweight separating structures.

Our guidance on flat and HMO soundproofing explains some of the common issues affecting multi-occupancy buildings.

Before carrying out work in a leasehold property, check whether permission is required. Changes to shared structures, floors and fire-resistant constructions may be subject to lease conditions or building requirements.

Soundproofing Is Different from Sound Absorption

Soundproofing helps reduce noise passing between separate spaces. Sound absorption controls echo and reverberation within a room.

Acoustic foam and absorption panels can make an internal space sound less reflective, but they should not be relied upon to block voices, music or footsteps from next door.

Carpets, curtains and soft furnishings may reduce reflections within a room. A carpet and suitable underlay may also reduce some impact noise at its source, but these materials do not replace a properly designed wall, floor or ceiling soundproofing system.

Installation Quality Is Essential

An acoustic system can be weakened by relatively small installation errors. Common problems include:

• Rigid fixings bridging resilient layers
• Unsealed board edges
• Compressed acoustic insulation
• Untreated pipework and sockets
• Gaps at wall, floor and ceiling junctions
• Incorrect spacing of bars, clips or supporting frameworks

Some straightforward systems may be suitable for experienced DIY installation. More complex independent walls, suspended ceilings and floating floors may require a competent tradesperson familiar with acoustic construction.

Set Realistic Expectations

Soundproofing can reduce noise from neighbours, but it cannot guarantee complete silence or remove every disturbance.

The improvement achieved will depend on:

• The source, volume and frequency of the noise
• Whether the sound is airborne, impact-based or structure-borne
• The existing building construction
• The number and severity of weak points
• Flanking transmission
• The products and system selected
• The quality of installation

Low-frequency music and heavy impact noise are often more difficult to control than ordinary conversation. A realistic objective is usually to achieve a meaningful reduction rather than to make an adjoining home completely inaudible.

Choose the Right Soundproofing Products

Before ordering soundproofing products, identify the main source and transmission route. Effective systems generally combine mass, resilient separation, cavity absorption and careful sealing.

Applying products to every available surface is not always necessary and can add cost, reduce room dimensions and make installation more disruptive. A targeted system based on the building construction is more likely to provide useful results.

Call Acoustic Supplies on 01204 548400 or contact the team online to discuss your soundproofing project.