Lewis Flooring System B2

Lewis Flooring System B2

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
Download now from NBS National BIM Library

Literature

LEWIS Deck, steel and concrete floors for Acoustic separation, underfloor heating, load bearing and wet rooms

LEWIS Deck, steel and concrete floors for Acoustic separation, underfloor heating, load bearing and wet rooms

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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