Public questions and answers for The British Carpet Company

Question 1

Why should I consider a moisture-barrier carpet underlay if I have pets or children?

Accepted Answer

A moisture-barrier underlay can be useful in homes where spills, pet accidents or other liquids are a realistic risk. Manufacturer material from Airstep explains that liquid can pass through the carpet into the underlay, where contamination may remain even after the carpet surface has been cleaned. A barrier layer is intended to reduce the amount of liquid reaching the absorbent part of the underlay, which can make recurring stains and odours less likely. It is still important to clean spills promptly and to choose an underlay that is suitable for the carpet, subfloor and room. Product construction and warranty conditions vary, so the exact moisture-protection claim should be checked for the underlay being quoted.

Question 2

Why can pet urine or a liquid stain smell come back after the carpet has been cleaned?

Accepted Answer

A recurring smell can happen when the original liquid travelled through the carpet and reached the underlay or subfloor. Cleaning the visible carpet fibres may remove the surface contamination while leaving material underneath, and moisture or humidity can allow that odour to become noticeable again. Airstep's underlay guidance specifically highlights this risk and is one reason moisture-barrier underlays are considered in homes with pets or frequent spills. If an odour keeps returning, the practical next step is to have the carpet, underlay and subfloor assessed rather than repeatedly treating only the carpet face.

Question 3

What is Airstep Pet Defence underlay designed to do?

Accepted Answer

Airstep's Pet Defence material is aimed at homes where pet accidents and liquid penetration are a concern. The key idea is to add underlay protection beneath the carpet so liquid is less able to soak into the cushioning layer and contribute to persistent stains or odours. Airstep also promotes a product-specific performance guarantee on this type of underlay. That does not mean every stain, pet accident or installation issue is automatically covered, so the current product specification, warranty terms, carpet compatibility and installation requirements should be confirmed before purchase.

Question 4

Can a good carpet underlay reduce flattening and loss of pile height?

Accepted Answer

Yes, underlay can contribute to how well a carpet keeps its appearance because it supports the carpet as people walk across it and helps absorb repeated impact. Airstep's published performance material says its testing found that carpet used with its underlay showed improved life and reduced loss of pile height. The effect will still depend on the carpet construction, traffic level, underlay density and resilience, installation quality and maintenance. For a busy room, stairs or hallway, the better question is not simply whether the underlay feels soft, but whether it provides the right support for that particular carpet and level of use.

Question 5

Is thicker carpet underlay always better, and what should I compare instead?

Accepted Answer

No. Thickness by itself is not a reliable measure of underlay quality or suitability. A better comparison looks at density, resilience, construction, intended traffic level, the carpet manufacturer's requirements, acoustic and thermal performance, relevant testing and the way the underlay behaves under load. A very soft or thick product can feel impressive in a sample but may not be the right support for every carpet, staircase or commercial application. The underlay should be selected as part of the complete flooring system rather than as a separate comfort upgrade.

Question 6

What does it mean when Airstep says its carpet underlay is tested to Australian Standards?

Accepted Answer

It means the manufacturer is referring to formal performance testing rather than relying only on how the underlay feels in a showroom. Airstep states that its carpet underlays are scientifically tested to perform in accordance with relevant Australian Standards guidelines. For a customer, the useful follow-up is to ask which standard and test result applies to the exact product being quoted, because different underlays can be designed for different residential, commercial, acoustic or other performance requirements. Current certificates or technical data should be used where a project has a specific compliance requirement.

Question 7

What does a 'lifetime of the carpet' underlay guarantee actually mean?

Accepted Answer

Some underlay manufacturers describe selected products as being guaranteed for the life of the carpet installed over them. Airstep uses this wording in its product material, but it should be read as a product-specific warranty rather than a promise that every underlay problem will be covered in every situation. Warranty conditions can depend on correct installation, compatible carpet, normal use and other exclusions. Before buying, ask for the current written warranty for the exact underlay so you can see what 'life of the carpet' covers and what evidence may be needed if a claim is ever made.

Question 8

How do I choose acoustic carpet underlay for an upstairs room or apartment?

Accepted Answer

Start with the building and floor construction, not with a single advertised acoustic number. Dunlop's acoustic guidance notes that every building is different and that site information is needed to interpret impact-sound results properly. The same underlay can perform differently over concrete, timber or other floor systems, and the finished result also depends on the carpet and installation. For an upstairs room, apartment or strata project, identify the required acoustic target first, then compare test data for a flooring system that is relevant to that construction and confirm the proposed specification with the installer, building manager or other responsible party where required.

Question 9

Why can the same carpet underlay give different acoustic results in different homes?

Accepted Answer

Acoustic performance comes from the complete floor assembly rather than the underlay alone. The subfloor material, slab or timber construction, ceiling below, carpet type, fixing method, room geometry and installation details can all influence impact noise. Dunlop's guidance specifically warns that building information is needed because acoustic results are site-dependent. That is why an underlay test result should be treated as evidence for a tested system, not as a guarantee that every home will achieve exactly the same result.

Question 10

What are CRF and CHF floor fire ratings, and why can they matter when choosing carpet and underlay?

Accepted Answer

Dunlop's technical material refers to CRF and CHF floor-fire testing in the context of Australian NCC and BCA requirements. These ratings form part of the way flooring systems can be assessed for fire performance in buildings. The important point for a buyer is that carpet and underlay should not be considered in isolation where a project has a specified fire requirement: the relevant current test evidence for the proposed flooring system should be checked. The required result can vary with building type and use, so a current manufacturer certificate or project specification is more reliable than relying on a generic product description.

Question 11

Is environmentally friendly or recycled carpet underlay available?

Accepted Answer

Yes. Underlay manufacturers now offer products and programs focused on recycling, lower-waste manufacturing and reduced reliance on virgin materials. Dunlop's EnviroFirst material, for example, describes recycling and sustainability initiatives across its flooring-underlay business, and its Renu material is positioned as a lower-footprint underlay option. When comparing products, look beyond the word 'eco' and ask what the underlay is made from, whether recycled or renewable content is used, what happens to manufacturing waste, and whether any environmental certification applies to the exact product. Current certification should always be checked because product ranges and programs can change.

Question 12

Why is sugar cane used in some Dunlop carpet underlay?

Accepted Answer

Dunlop's Renu material explains that sugar-cane-derived content is used as a renewable alternative to some conventional plastic-based material. The sustainability argument is that sugar cane is renewable and can reduce dependence on fossil-derived feedstocks in the product's manufacture. That does not mean the entire underlay is made from sugar cane or that every Dunlop underlay uses the same construction. If renewable content is important to you, ask for the current Renu product specification so you can see exactly where the sugar-cane-derived material is used and what other environmental attributes apply.

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