General & Technical FAQ's

In new constructions, the subfloor must have reached the required level of dryness before the floor covering installation can proceed. The moisture content of the subfloor must be tested with a hygrometer. The relative humidity (RH) should be below 75% RH. If the reading is above this level, the floor will be considered unsuitable for a resilient floor covering so other appropriate measures will need to be considered e.g. the application of a surface damp proof membrane (DPM).

Expansion joints in floor covering installations are required where structural movement joints are present in the subfloor. Structural movement joints should not be bridged by any part of the flooring installation, and should be treated with a suitable surface mounted cover strip or proprietary expansion joint profile.

This will depend on the subfloor type and its condition. Advice on suitable subfloors and how they should be prepared can be found in BS8203 for resilient floor covering, BS5325 for textiles and/or Forbo Flooring installation guidance.

Both Forbo Marmoleum and Vinyl products are subject to indicative chemical/stain testing in accordance with European standards. Copies of test results are available on request.

The thermal conductivity value for Forbo Flooring products can be viewed on the individual product Technical Specification.

Download Technical Specifications here

Acoustic underlays such as Corkment and Vinylbase acoustic are available to increase the impact sound reduction performance of our standard linoleum and vinyl floor coverings. If a single stick product with enhanced acoustic performance is required Marmoleum decibel, Sarlon and Surestep wood decibel are available.