PREPARATION

Ensure that the areas that are to have Fibreglass Stair Tread Covers fitted are clean and dry, and free from loose and defective material. Any damaged surface areas should be patch repaired to provide a reasonably flat and consistent surface. Dry fit all Fibreglass Stair Tread Covers to ensure that they fit freely, and that they sit flat down onto the surface. If required, Stair Tread Covers can be trimmed on site to suit, using an industrial jigsaw and appropriate cutting blades (Bosch T101 A1F or similar). Drill the fixing locating holes in all the panels. Whilst individual circumstances will vary, the following can be used as a guide:

FIBREGLASS STAIR TREAD COVERS

Drill two holes on each side of the Fibreglass Stair Tread Cover, one approx. 15mm in from the back edge and 15mm in from the side. The second one should again be approx. 15mm in from the side, and in line with the black and yellow dividing line. The first drilled Cover can be used as a pattern for the other Covers.

FIBREGLASS PLATE LANDING COVER

The front edge fixing points should again be approx. 15mm in from the side. The remaining fixing points should be 15mm in from the edges, and approx. 500mm centres.

FLAT SHEET

Drill holes 15mm in from all edges at approx. 600mm centres. Depending on the width of the landing covers, it may be necessary to provide fixing points, also at 500mm centres, down the middle.

FITTING STAIR TREAD COVERS

Mechanical fixings are all that is required to secure Tread Covers. However, the application of an appropriate high strength gap filling adhesive (Bostic, Sikaflex, or similar, can be supplied) will provide additional fixing strength and a barrier against any 'drumming' noise that may be created when walking on the Stair Tread Covers.

Apply a 6mm bead of the high strength gap-filling adhesive around the periphery of the panel, and in horizontal stripes at approximately 250mm centres. Press the panel firmly to the substrate immediately, to ensure adequate transfer of the adhesive. Secure with the mechanical fixings, and allow the adhesive sealant to cure before allowing excessive traffic to use the areas. Under normal circumstances and conditions, a firm bond will be achieved in about 1 hour.

GAP FILLING ADHESIVE QUANTITIES

As a guide, one tube (290ml) of adhesive is sufficient for any one of the following:
5 x 600mm wide Tread Covers 2 x 1200mm x 1200mm Landing Covers
3 x 1000mm wide Tread Covers 1 x 1200mm x 2400mm landing Covers
2 x 1500 wide Tread Covers

RECOMMENDED MECHANICAL FIXINGS

Over Timber - 30mm x 5mm zinc plated or stainless steel screws.
Over Steel Plate - No 8 x 20mm self-tapping pan head Pozi stainless steel screws or 8 No 20mm self-drilling pan head Phillips zinc plated screws.
Over Concrete - Zinc Coated Domed headed bolts and anchors - Can be supplied @ 20p each
Over Open Mesh - Stainless steel M saddle clips and dome head bolts, suitable in length for the depth of the existing treads.