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Alispar

Alispar Tread close up
Alispar anti-slip on external stairs

Alispar Nosings and Treads are designed to take heavy foot traffic and are suitable for use on external stairs where a high degree of slip resistance is required, even in wet conditions.

They are manufactured to order from high quality tensile aluminium and come fully assembled and drilled for fixing

Typical applications are Railway Station Footbridges and Subways, Hospitals, Schools and High Rise Housing blocks.

Alispar brochure (pdf)
Slip resistance test results

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Technical Specification

  • High tensile aluminium extruded to B.S. 1474 in 6063 T6.
  • Front rows of abrasive available in yellow powder coat to highlight step edge.
  • 6mm radius to front edge complies with section 2.2.7 of the Code of Practice for Disabled Passengers issued by the Office of the Rail Regulator.
  • Colours: Black, Red, Blue, Green. Yellow, Brown.
  • Full installation service available nationwide.
  • Typical applications: Railway Stations, Hospitals, Schools, Subways - any heavily trafficked external staircase.

Alispar Nosings and Treads diagram

MOD1
90° nosing available in mill finish or yellow powder coated aluminium. Interlocks with MOD 4 and MOD 5 sections.
View MOD1 technical diagram (pdf)

MOD2
81° nosing available in mill finish or yellow powder coated aluminium. Interlocks with MOD 4 and MOD 5 sections.
View MOD2 technical diagram (pdf)

MOD3
90° nosing with extended riser incorporating 55mm yellow or white tonal variation strips. Interlocks with MOD 4 and MOD 5 sections.
View MOD3 technical diagram (pdf)

MOD3R
An 81° rakeback version of the MOD3.
View MOD3R technical diagram (pdf)

MOD4
90mm wide body section can be used in multiples to cover full tread and landing depth. Interlocks with MOD 1/2/3/55 and MOD 5 sections.
View MOD4 technical diagram (pdf)

MOD5
Chamfer section for use on top and landing treads. Interlocks with MOD 1/2/3/4/55 sections.
View MOD5 technical diagram (pdf)

MOD55
Stair tile replacement nosing, with 55mm tonal variation infill. Interlocks with MOD 4 and MOD 5 sections.
View MOD55 technical diagram (pdf)

MOD6
75° nosing with riser incorporating 55mm yellow or white tonal variation strips. Interlocks with MOD 4 and MOD 5 sections.
View MOD6 technical diagram (pdf)

MOD7
MOD7 90° nosing with riser incorporating 55mm yellow or white tonal variation strips. Interlocks with MOD 4 and MOD 5 sections.
View MOD7 technical diagram (pdf)


DWG files (for use with Autodesk software) are available from our Downloads Page

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Fixing Recommendations

Fitting of Alispar on concrete stairsFor fixing onto stone or concrete stairs, ensure that surface is sound and level. Make good any worn or broken areas with rapid cement or epoxy repair mortar.

Position Alispar on step. Spot through to mark with a 4mm dia masonry drill. Lift off Alispar and drill 6mm dia hole where indicated to take a red plug. Apply a layer of bedding compound (e.g. exterior grade tile adhesive) to step and relay Alispar. Screw down with 4mm dia stainless steel countersunk screws.

For steel stairs position Alispar on step, spot through with 4mm HSS drill bit. Lift Alispar off and drill steel through with 5mm HSS bit. Apply layer of insulation membrane (e.g. Bituthene). Use Countersunk machine screws, nyloc nuts and washers to fix.

For timber stairs ensure surface is flat and level. Use 4mm woodscrews.

Metal stairs before Alispar fitting
Before

Metal stairs with Alispar fitted
After


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