Waffle rubber underlays gain their name from the pattern on the underside of the underlay, which creates small air pockets that help to provide both comfort and insulation. Whilst waffle underlays make use of trapped air, crumb-rubber underlays like Duralay Treadmore are constructed from small particles of rubber moulded together to produce dense and highly resilient carpet underlays. Crumb-rubber is produced by recycling old car tyres that are then granulated and re-processed which makes it great on the environment.
We would recommend to stick with PU Foam underlays such as Plushwalk as these are the latest to-date underlays giving your carpets the best feeling and softness underfoot.
Duralay Treadmore