What is the difference between waffle rubber and crumb rubber?
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 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 granulised and re-processed.