Warmfloor Super - Diagram
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Warmfloor

Prestressed Concrete T beams manufactured in 150mm or 225mm depths in 50mm increments with high strength expanded polystyrene insulation blocks.

Insulated Flooring products are manufactured from environmentally friendly expanded polystyrene. EPS is a very sustainable product and an efficient use of natural resources, for every 1 kilogram of oil used in the manufacture of EPS, 150 kilograms can be saved in heating oil over a fifty year period.

  • Ground floors in domestic and residential buildings
  • Highly insulated floor
  • Flexible ‘U’ values as low as 0.10w/m²K (depending on Perimeter/Area ratio)
  • Easy and quick to install EPS blocks, mechanical lifting equipment not required
  • No skilled trades required to install
  • No waste
  • Underfloor heating can be incorporated into the concrete finish
  • Non toxic, non irritant and chemically inert.
  • A+ BRE Green Guide rating.
  • Zero ODP
  • Certified by BBA (Agrément Certificate 17/5431 - S and B Warmbeam)

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U Values

Lynx warmfloor will help to enhance the thermal performance and efficiency of a building and can achieve ‘U’ values as low as 0.10 The “U” value is a measure of how easy it is for heat to pass through the fabric of a building measured in W/m²K, that is heat (watts) passing through each square metre (m²) for each 1⁰C of temperature difference. Warmfloor can be specified with a range of “U” values that will ensure the building meets its thermal efficiency target. The table gives the U values based on Perimeter/Area (P/A) using either standard white EPS or grey EPS. Grey EPS has added graphite which improves its insulating properties. The thermal performance of the floor can be improved by simply increasing the thickness of the topsheet.

Thermal Bridging

A thermal bridge is an area of building construction which has a significantly higher heat transfer than the surrounding materials, this can occur at the junction between the floor and the wall reducing the thermal efficiency of the building. The measure of this heat loss at the thermal bridge is known as the PSI (Ψ) value measured in W/mK The use of Lynx warmfloor can result in reduced PSI values much less than Accredited Construction Details of 0.16 W/mK increasing the thermal efficiency of the building.

Concrete

Standard Concrete: 75mm min depth C28/35 with maximum aggregate size 20mm and reinforcement selected from the options below. Slump should be Class S3 (100 to 150mm) or S4 (for spot samples taken from initial discharge, 140 to 230mm). Aggregate to comply with BS EN12620: 2013.
Self Compacting Concrete: 75mm min depth C28/35 with maximum aggregate size 10mm and reinforcement selected from the options below. Slump flow class should be SF1 (550 to 650mm) or SF2 (660 to 750mm). The sand content should be greater than 45%. Aggregate to comply with BS EN1260:2013.

 

Reinforcement

Steel Mesh One layer of A142 mesh (to BS 4483:2005) with a characteristic yield strength of 500N/mm² set at mid-point to the depth of the concrete topping.
Steel Fibres Novomesh B&BA: Dosage rate 17.5kg/m³, steel flat end, steel fibres, 50mm long, 1mm diameter, tensile strength of 1150N/mm².
Steel Fibres Adfil SF86: Dosage rate 13.33kg/m³, 60mm long, 0.75mm diameter, modulus of elasticity of 200000N/mm², tensile strength of 1225N/mm².
Macro-Polymer Novomesh B&BA: Dosage rate 3.84kg/m³, continuously deformed, 60mm long, 0.56mm diameter, modulus of elasticity of 7000N/mm², tensile strength 600N/mm².
Macro-Polymer Durus Easy Finish: Dosage rate 3kg/m³, 40mm long, 0.7mm diameter (equivalent), modulus of elasticity of 6000N/mm², tensile strength of 470N/mm².

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