Warm roof systems are commonly chosen for their thermal, structural, and hygrothermal performance, but they also offer significant advantages in managing building acoustics.

By positioning the control components (including insulation) above the LinerDeck, warm roof systems can incorporate either a continuous mass layer to reduce external noise transmission or utilise a non-reverberant cavity with lofted insulation. Acoustic performance can be further enhanced by selecting higher-performing materials to suit specific project requirements. This approach is particularly effective in urban environments or areas exposed to elevated environmental noise, such as near airports, railways, or busy roads.

It’s important to note that not all warm roofs offer the same acoustic benefits. Systems using PIR insulation alone will not provide meaningful sound attenuation unless paired with a suitable mass layer.

Standard RoofLogic warm roof systems can achieve Sound Transmission Class (STC) ratings in the high 30s to low 40s, with the potential to improve this further through tailored specification. In addition to airborne sound control, the systems also offer excellent rain noise reduction, which is an essential consideration in roof construction. Independent testing reports confirming rain noise performance are available from Canterbury Acoustic Testing.

However, the benefits extend beyond reducing external noise. A key acoustic advantage of a RoofLogic warm roof system is its ability to incorporate a perforated LinerDeck. When the interior-facing metal deck is perforated and combined with acoustic insulation, the system can achieve a Noise Reduction Coefficient (NRC) of 0.7 to 0.95. This dramatically reduces internal echo and reverberation particularly in large, open spaces such as school halls, gyms, auditoriums, and sports centres, where hard surfaces and high ceilings often contribute to poor acoustics. Controlling this reverberation is essential for occupant comfort.

Furthermore, integrating acoustic absorption directly into the roof system offers both practical and aesthetic advantages. It eliminates the need for suspended ceilings or hanging baffles, preserving the sense of openness while simplifying the construction process. The exposed perforated surface is also highly durable, cost-effective and capable of withstanding repeated impacts (such as ball strikes) making it ideal for high-use environments like gyms.

In summary, warm roof systems offer a range of benefits including superior thermal insulation, effective condensation control, and enhanced acoustic performance. When paired with a perforated LinerDeck, they offer both an aesthetic and practical solution for reducing reverberation in noise-sensitive spaces.