MasterFibre Matting - Rubber Matting (Commercial)

Fibre Under Lay

Fibrelay underlay’s have excellent sound impact attenuating properties for both new and old buildings. Various densities and thicknesses are available to suit ceramic tiles, vinyl, carpet and timber flooring applications. Each density is specifically engineered to meet the acoustical requirements of specifiers and the product is suitable for all common construction and installation methods.

Higher density Fibrelay products are recommended for ceramic tiles and vinyl to provide good stability under point loading. For applications requiring extreme point loading stability granulated cork is added to the product [at no extra cost which acts as stabilizing piers. Permanent resilient elasticity at a recycled price ensures Fibrelay is the right choice for every application.


Suitable for new and old buildings requiring impact sound insulation under timber, vinyl or ceramic floors. Can be used in wet areas when used in conjunction with a waterproof membrane.

 Product Overview 

Impact sound insulating underlay

Material: Polymer bound recycled rubber

Appearance: Black

Thickness: 3mm, 4mm, 5mm, 6mm, 8mm, and 10 mm with other thicknesses on request

Dimensions: Tiles: 1m²

All Rolls:  0.3 - 2.4 m wide with various length options

Roll length ± 1.5%

Thickness ± 0.5mm

Density ± 5.0%


Impact: ΔLw = 22dN with 2mm sheet vinyl

ΔLw = 18dB with timber

ΔLw = 18 dB with ceramic tiles


Temperature range: -25ºC to 80ºC

 Thermal Insulation

Fibrelay provides excellent thermal insulation, keeping rooms both cooler in summer and warmer in winter - this helps reduce energy costs and counteract global warming.