NBS Source
List your products
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
Specification data
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
PlatformCompatibleVersionCertified to
Revit
Revit 2017 1 1.3
Download now from NBS National BIM Library
Literature