Sonic Gold Sound Reduction Underlay 15Mx1Mx5mm (15sqm Roll) is a metallic foil-faced underlay that reduces impact noise by up to 24 decibels. This underlay is also a vapour barrier. Suitable for use with underfloor heating. During installation, the gold foil faces down.

• Integral gold foil vapour control layer to help protect against moisture - up to 3% MC
• 22 Micron (approx.) PETM foil layer - 200mm joint overlap
• Excellent impact sound insulation - 22 to 24dB
• Lightweight and easy to handle. Simple, quick & easy to install
• CFC & HCFC free
• Suitable for use over underfloor heating