Some people will buy expensive carpets but then skimp on the underlay. After all, you can’t see it so what does it matter? Well, it matters a lot! A good quality underlay can increase the life of your carpet, improve the feel of your carpet underfoot, provide insulation against heat loss, improve soundproofing, as well as act as a barrier against moisture, dust and grit in the sub-flooring.

Types of Underlay

As with carpet, underlay should be chosen to suit its application - where it will be installed and what wear and tear it will endure. Your Andersen's consultant can advise you on the best underlay for your requirements. Below is some information on the different types available.

Rubber Waffle

Made from natural sponge rubber, rubber waffle underlay offers strength and durability and provides firm support for carpet. Thanks to the cellular construction, air can circulate. This minimises dampness and condensation under the carpet. This is one of the more expensive underlay options.

Foam Underlay

There are various qualities of foam underlay. The more expensive ones will improve the feel and extend the life of your carpet, whereas the cheaper foam underlays will provide minimal protection for your carpet. These forms of underlay are also environmentally friendly, as they are made from recycled materials.

Felt Underlay

Felt underlay is usually made from fibres such as wool, waste textiles or jute - sometimes a combination of these fibres. In the past this underlay was basically the only type available. Today it is used rarely in home installations.

Underlay Tips

• Carpets with built in underlays are usually a poor substitute for the combination of a good carpet and good underlay.

• If you have in-floor heating, you need to take this into account when choosing your underlay (as well as your carpet). For the best advice, ask your Andersens consultant.

• Never lay a good quality carpet on a worn underlay. Your new carpet will not feel anywhere near as good as it should underfoot. And the few dollars you save will be a short-term saving, as your expensive new carpet will wear far more quickly.

• Try a range of underlay types before buying. Combine your preferred carpet with various underlays to find the feel that’s right for you.

• Take professional advice. The best person to help you select your underlay is an Andersens consultant.