Lewis Flooring System MK1

Lewis Flooring System MK1

CDI Innovative Construction Materials Ltd Third party certifications:
  • QA Certificate

    QA Certificate

    Certificate type

Lewis Dovetail Metal Deck concrete composite acoustic floor installed over timber joists. The floor build-up has a number of variables for achieving different acoustic results.

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Application

  • Sound and fire resistant floors separating compartments.
  • Fire resistant floors for high-risk areas.
  • Water resistant floors/ tiled floors on timber in bathrooms, toilets and kitchens.
  • Underfloor heating on timber joists or steel beams.
  • Finished floor ready to accept ceramic tiles, terrazzo, tiles natural stone or other floor coverings.
  • Raised high-stability floors in shops, restaurants and offices.
  • 'Inter-connected structure' for floors with inadequate strength and/ or rigidity.
  • Structural, acoustic and fire rated floors within light gauge steel load bearing framed buildings.
  • Concrete floors within modular buildings, traditional build, timber frame, SIPs or ICF building systems.
  • Load bearing and vibration proof plant room, dance hall and gym floors.

Description

Lewis sheets are rolled, self-supporting, 16mm deep,,dovetailed profile steel reinforcement sheets which are used for shuttering and reinforcing lightweight concrete floors of limited thickness on timber or steel floor framing.

Properties:

  • Simple to use due to special rolled profile.
  • Can be laid directly onto floor joists or steel beams. Timber flooring may be omitted, resulting in savings on floor height and weight.
  • Fire resistance ratings of 60, 90 and 120 minutes.
  • Airborne and impact sound transmission values according to Building Regulations (E&W), Approved Document E.
  • Increased strength and rigidity of the interconnected floor system results in an extra load-bearing capacity of up to 30% for the floor as a whole.
  • Water resistant structural flooring.
  • Profile allows air circulation essential for timber preservation.
  • Total floor thickness as low as 36mm, acoustic floors 50 mm.
  • High load bearing capacity combined with low dead load of 0.9 kN/m² (at 50mm).

Applications:

  • Sound and fire resistant floors separating compartments.
  • Fire resistant floors for high-risk areas.
  • Water resistant floors/ tiled floors on timber in bathrooms, toilets and kitchens.
  • Underfloor heating on timber joists or steel beams.
  • Finished floor ready to accept ceramic tiles, terrazzo, tiles natural stone or other floor coverings.
  • Raised high-stability floors in shops, restaurants and offices.
  • 'Inter-connected structure' for floors with inadequate strength and/ or rigidity.
  • Structural, acoustic and fire rated floors within light gauge steel load bearing framed buildings.
  • Concrete floors within modular buildings, traditional build, timber frame, SIPs or ICF building systems.
  • Load bearing and vibration proof plant room, dance hall and gym floors.

General information

Uniclass 2015

Pr_25_71_51_89 Steel profiled sheetPrimary

CAWS

E20/225 Permanent formwork for suspended floors

E30/240 Proprietary prefabricated reinforcement

E60/210 Floor

G10/176 Profiled sheet for shuttering/ composite floor slabs

G30/110 Metal profiled sheet decking

M10/392 General reinforcement

Specification data - Steel profiled sheet

Product Reference

Lewis Dovetailed Sheeting

Length

1220 mm

1530 mm

1830 mm

2000 mm

2500 mm

Standard stock lengths.

Standard product features

Sheet width:

630 mm.

Steel gauge:

0.5 mm.

Profile height:

16 mm.

Digital objects
Platform Compatible Version Certified to
Revit

Revit 2017

1

1.3
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Literature
Third party certifications
  • TNO Building and Construction Research: CVB – R0059 Structural Fire Behaviour
  • TNO Built Environment and Geosciences: BCS – RO399 Structural Floors
  • TNO TPD: LTR – 030302 – Acoustic Performance
  • KOMO (KIWA): K7470/04
  • CSTB: No 3/01-364
  • ATG: No 04/2096
  • BAM: No z-26.1-36
  • NHBC: GP/em/05/135
  • LANTAC National Approval : No 410-1-7170
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