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RetroNose™

Traditionally, stair nosings are associated with new construction projects, since they are secured by an anchor that is cast into the stair when the material is poured. RetroNose™ Series 331/341 introduces a unique solution to interior and exterior stair renovation problems: the industry's first retrofit nosing.

Amstep's RetroNose Series 331 (3" wide) and 341 (4" wide) nosings) can be installed at any time. This makes it ideal for applications where metal nosings were not specified during construction, or where adhesive stair treads have begun to peel or crack.

RetroNose offers an attractive and cost-effective answer to the serious hazard of worn or damaged stairs. New construction specifications often call for adhesive rubber stair treads. Rubber stair treads wear over time and, unfortunately, they can also crack, peel, or even roll down over the leading edge of the stair. Other stairways may not feature any non-slip treads or nosings, and older stairs or those subjected to heavy foot-traffic or abuse may even be cracked or severely worn. Amstep Series 331/341 retrofit nosings solve all of these problems.

Amstep RetroNose features the same, super-hard, non-slip abrasive material found on Amstep's replacement treads and new construction nosings, permanently bonded to a sturdy base of heavy-duty, extruded aluminum. The walking-surface provides a coefficient of friction of 1.02 dry and 0.98 wet to comply with ADA, OSHA, and most local building codes and insurance requirements. The design also features a gently radiused edge that's flush with the riser and a minimum of exposed aluminum.

• Easy to install on existing stairs
• Retrofit nosings provide years of non-slip performance
• Ideal for interior stairs in educational, health care, commercial, and industrial facilities
• Meets ADA, OSHA, and most building code requirements
• Choice of colors to match any decor
• Can be maintained with routine cleaning products

RetroNose Series 331/341 nosings are a snap to retrofit. In many cases, stairs need only to be cleaned in preparation. If stairs are severely worn, you must first level them with a quick-set leveling compound. Amstep RetroNose nosings are then secured with stainless steel flat head screws drilled into the stair material. They work with virtually any stair material including poured or precast concrete, terrazzo, steel pan cement-filled, or wood stairs. Once installed, stairs equipped with RetroNose Series 331/341 nosings can be maintained with routine cleaning products.

The abrasive material bonded to the heavy-duty aluminum base of the RetroNose flyer is offered in your choice of seven attractive colors. These colors can blend with any decor, for improved esthetics. The color pigment is incorporated into the abrasive material itself, so the color will never fade or peel.

RetroNose Series 331/341 nosings can be secured to virtually any stair material:

• Poured or precast concrete stairs
• Terrazzo stairs
• Wood Stairs
• Steel pan cement-filled stairs

Tread ¼" thick. Lip ¼" from underside.

341A: 4"wide

331A: 3" wide

The tread base shall consist of heat treated 6063-T6 Amstep Products, LLC extruded aluminum. The abrasive filler material shall be bonded and locked into the channels provided in the extruded tread base. Treads will have a coefficient of friction 1.02 dry, 0.98 wet per ASTM F609-79. Tread shall be ¼" thick and secured by means of at least three, stainless steel flat head bolts to a depth of ¾".