Insulation: Specifying the whole package

by Tania Wannenburg
Insulation specifying the whole

Flooring insulation needs to withstand point loads as well as carry sufficient insulation properties. Insulite explains how to achieve this goal.

Specifying insulation is often a challenge faced by construction professionals because of the fact that the selected product must be able to withstand point loads, as well as encompass the necessary insulation properties.

The benefits of fitting proper insulation in buildings go beyond just saving energy, to also include acoustic advantages and the ability to achieve sustainable building standards and ratings.

Understanding insulation values
To get the specification right, one must first understand what insulation and thermal conductivity actually are. The thermal conductance of a material is measured as (W/m²K), with the U-value referring to a material’s ability to conduct heat, while the R-value (m² K/W) measures the ability to resist heat flow.

The higher the U-value, the more heat can pass through a certain material. A lower value would therefore indicate a better insulator (SANS 204:2011). The values of different materials (as set out in the table) put it into perspective.

An insulation sandwich
With a U-value of only 0,13, iTe Products’ INSULiTe® flooring insulation system has an insulation property equal to that of soft timber. The system consists of different materials making up an insulation sandwich that also has very good load-bearing characteristics.

Closed hollow glass beads make up the bulk of the 50mm-thick insulation screed and are held together with a combination of high-strength polymer modified cement, topped with iTe’s F30 LeveliTe self-levelling floor screed. This is used to penetrate the top 10mm into the sandwich. The topping of 25Mpa is used to distribute point loads that are placed onto the floor. Any floor covering can then be applied over the self-levelling floor screed to achieve the desired aesthetic appeal together with having a solid feeling floor.

INSULiTe® is perfect for applications where under-floor heating needs to be installed due to the fact that only the top 10mm of the self-levelling floor screed will be heated by the under-floor heating application, while the excess heat that is generated will be radiated into the room. This dramatically improves the heating process compared to conventional methods, where a huge amount of heat is lost into the concrete surface bed and ultimately into the sub-base of the concrete.

iTe Products is a one-stop shop for flooring insulation solutions required to achieve high thermal comfort levels, while simultaneously offering the load-bearing performance benefits that are expected of durable flooring materials.

Tel: 011 864 4918
Fax: 011 864 2123
Email: sales@iteproducts.co.za
Website: www.iteproducts.co.za

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