Moisture in Sub Floors

Moisture testing of both new and old concrete sub-floors is recommended before installation of Amtico floor tiles or Spacia floor tiles.

The only acceptable method of test in the UK is that described in BS 8203, using a hygrometer of the hair, paper or synthetic fibre type, or an electronic relative humidity probe, such as the Protimeter Concrete-master.

These instruments measure the relative humidity of the trapped air immediately above the concrete surface. The standard recommends this type of non-destructive surface measurement rather than the use of an invasive method.

• In use the hygrometer should be fixed to the floor and sealed round the edges. Alternatively it can be covered with a transparent polythene sheet, which is taped around the edges to seal it.
• Each hygrometer should always be calibrated before use; this may be carried out by placing the hygrometer over a saturated sodium chloride (salt) solution in a desiccator for 12 hours. The instrument should then be adjusted to 75%.

Guides for Installing Amtico on Various Floor Types:

• Installing Amtico With Underfloor Heating
• Damp Proof Membranes and Amtico Flooring
• Installing Amtico on Concrete Sub Floors
• Installing Amtico on New Concrete Floors
• Installing Amtico on Old Concrete Floors
• Installing Amtico on Existing Resilient Floors
• Installing Amtico on Wood Sub Floors
• Mastic Asphalt and Amtico Flooring
• Moisture in Sub Floors
• Quarry Tiles, Ceramic and Terrazzo Sub Floors

Preparation & Installation

• Amtico Installation Guide
• Amtico FAQs (General)
• Amtico Installation FAQs
• Amtico Adhesive FAQs
• Spacia FAQs (inc Preparation, Installation and Maintenance)
• Spacia Click Installation Guide

Maintenance & Care

• Amtico Maintenance FAQs
• Amtico Safety and Maintenance
• Amtico Wear and Care
• Spacia Click Cleaning and Maintenance
• Ask an Expert

Designs & Calculations

• Amtico Floor Visualiser
• Amtico Flooring Calculator

Warranty Info

• Amtico Warranty