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Article Date: 19th January 2017

ARDEX UK - Controlling Moisture for Fast Track Flooring Installations with a Moisture Vapour Suppressant

Fast Track Flooring - Moisture Vapour Suppressant - Levelling Compound

Ardex - Moray Anderson

Moray Anderson, Technical Services Representative from ARDEX UK, offers his advice on speeding up the application of flooring for new build projects, whilst dealing with residual moisture.

As a rule of thumb, cement/sand screeds in good drying conditions will dry at 1mm per day up to 50mm in thickness, meaning the final floorcovering can’t be installed for months. If you’re using an Ordinary Portland Cement, and not an ARDEX Rapidry Screed Cement such as ARDEX A 38, which allows floorcoverings to be installed in as little as 4 hours, the next best option to ensure a quicker turnaround for your client, is a moisture vapour suppressant.

Q: What is a Moisture Vapour Suppressant?

A: A moisture vapour suppressant, such as ARDEX MVS 95, is ideal for use in new construction or refurbishment projects where a structural damp proof membrane is present and the relative humidity of the floor does not exceed 95%. A moisture vapour suppressant (MVS) is designed to control the passage of moisture that comes from water used within the construction process i.e. the water added to the screed cement, and allows the early application of the subsequent levelling and smoothing compound, and final floorcovering.

Q: What are the benefits of using ARDEX MVS 95?

Fundamentally; ARDEX MVS 95 speeds up the flooring installation. For example, if you installed a traditional Portland cement and sand screed mix up to 50mm you could be waiting over a month and a half for it to dry. ARDEX MVS 95 can be applied to this screed in as little as 10 days under reasonable drying conditions and when the relative humidity is below 95%. Allowing you to continue the flooring application and complete the project faster, which can be a crucial factor for the satisfaction of your clients.

  • You can apply ARDEX Levelling and Smoothing compounds direct to ARDEX MVS 95, without the need to prime, in as little as 2 hours
  • ARDEX MVS 95 comes in a one component tub which is ready to use, resealable and reusable.
  • Its water-based with low VOC (volatile organic compound) technology
  • ARDEX MVS 95 is suitable for use on heated screeds.

For more information about ARDEX Fast Track systems, and how you could complete jobs in less time, contact our Technical Services Department by email below.  Always refer to the product datasheets before installation.

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