Professional 27 mm Direct-to-Wall Soundproofing Panel for Stud Walls – Part E Capable

**SilentBoard™ Pro

27 mm Direct-to-Wall Soundproofing Panel for Stud Walls (Part E Capable)**

SilentBoard™ Pro is a high-performance, direct-to-wall soundproofing panel engineered to significantly improve the acoustic performance of low-mass stud walls. It is designed to increase wall mass and control vibration using multiple layers of acoustically effective materials combined into one factory-laminated panel.

Low-mass walls allow airborne sound to pass easily. SilentBoard™ Pro addresses this by adding substantial density, damping sound energy, and improving low-frequency performance — all within a slim, space-saving design that is straightforward to install.

Slimline Design with Real Acoustic Mass

Despite its compact profile, SilentBoard™ Pro delivers serious performance:

• Total thickness: 27 mm

• Weight: 30 kg per panel

• Weight per m²: 20.85 kg

This combination allows meaningful sound reduction without the depth penalty associated with independent wall systems, making it ideal for refurbishments, conversions, and internal upgrades where space is limited.

Three Layers of Soundproofing in One Integrated Panel

SilentBoard™ Pro combines three complementary acoustic layers, each performing a specific role within the system:

1. 15 mm Acoustic Plasterboard

A dense plasterboard layer that is heavier and more rigid than standard plasterboard. This increases wall mass, helping to block airborne sound transmission. The exposed face provides a standard plasterboard finish suitable for skim plastering or wallpapering.

2. 3 mm Mass Loaded Vinyl

A high-mass acoustic barrier designed to resist airborne sound, particularly at lower frequencies where lightweight constructions typically underperform.

3. 9 mm Closed-Cell Acoustic Foam

A resilient damping layer that absorbs sound energy and vibration, reducing re-radiation of noise through the wall structure.

Total system thickness: 27 mm

Acoustic Performance

SilentBoard™ Pro has been tested on a 100 mm timber stud wall incorporating 100 mm acoustic mineral wool and one layer of plasterboard on each face.

Measured airborne acoustic performance:

• 49 dB (DnT,w)

• 38 dB (DnT,w + Ctr) including low-frequency correction

Untreated stud wall performance:

• 35 dB (DnT,w)

• 26 dB (DnT,w + Ctr)

Improvement achieved with SilentBoard™ Pro:

• +14 dB (DnT,w)

• +12 dB (DnT,w + Ctr)

As a general reference, a 10 dB improvement is typically perceived as a halving of noise.

UK Building Regulations – Part E

SilentBoard™ Pro can be used to meet UK Part E Building Regulations when installed as part of an appropriate wall build-up.

Typical compliant applications include:

• Installation on both sides of a stud wall, or

• Installation on a secondary stud frame

Correct construction detailing is essential to achieving compliance.

Technical Specification

• Panel size: 1200 mm × 1200 mm

• Coverage: 1.44 m² per panel

• Total thickness: 27 mm

• Weight: 30 kg per panel

• Weight per m²: 20.85 kg

Thermal Conductivity

• Plasterboard: 0.25 W/mK

• Mass loaded vinyl: 0.037 W/mK

• 9 mm closed-cell foam: 0.039 W/mK

Thermal Resistance

• 15 mm plasterboard: 0.060 m² K/W

• Mass loaded vinyl: 0.095 m² K/W

• 9 mm closed-cell foam: 0.23 m² K/W

Fire Performance

• Plasterboard: EN 13501-1 – A2-s1, d0

• Mass loaded vinyl: Surface spread of flame tested to ISO 3795 and FMVSS 302 (self-extinguishing)

• Closed-cell foam: FMVSS 302

Do Soundproofing Panels Have Fire Protection?

Yes. The plasterboard layer within SilentBoard™ Pro achieves an A2-s1, d0 fire rating, suitable for use in regulated building environments.

Do Soundproofing Panels Work?

On low-mass stud walls, soundproofing panels such as SilentBoard™ Pro are effective when used correctly. This product is specifically intended for stud wall constructions and for applications where achieving Part E compliance is required.

Performance will vary depending on wall construction, installation quality, and noise type.

Best Practice for Soundproofing a Stud Wall

Effective stud wall soundproofing follows four key principles:

1. Increase mass – heavier, denser walls are harder for airborne sound to pass through

2. Use multiple materials – different densities block different sound frequencies

3. Add resilience – systems must flex slightly to absorb vibration

4. Reduce structural transmission – limiting direct vibration paths improves overall performance

SilentBoard™ Pro is designed around these principles within a single, practical panel system.

Installation, Handling & Delivery Information

• Panels must be stored flat upon delivery

• Each panel weighs approximately 30 kg and requires two people to lift

• Drivers are unable to assist with carrying materials indoors

• Delivered palletised as close to the property as access allows

• Standard delivery window: 9 am – 6 pm (signature required)

• If employing installers, fitting should be scheduled after materials are delivered

Finishing & Decoration

SilentBoard™ Pro features a 15 mm acoustic plasterboard finish, allowing standard plasterboard decorating techniques.

• Skim plastering is recommended to cover joints and fixings

• Heavy-duty lining paper can be used prior to wallpapering if required

Important Notes

• Handmade laminated product with a tolerance of ±2–3 mm

• Minor odour from the mass layer may occur initially; ventilate the room for 24 hours

• Detailed installation instructions and guidance are supplied

• Support is available should technical advice be required

Summary

SilentBoard™ Pro is a professional, space-efficient solution for reducing airborne noise through stud walls. It combines mass, damping, and resilience into a single, slimline panel designed for real-world performance and regulatory compliance.

Minimum order 10 boards