Hints and Tips

A range of heavy duty hints & tips from Covers

To maintain the strength of readymixed concrete delivered to site, never add water to the prescribed mix.

Because shingle is a natural product never assume that it will be a particular colour.

For external rendering washed sand should be used.

When using more than one pack of paving bricks or tiles, always use from different packs at random to avoid shade variations.

Concrete mixes for paths & oversite slabs

  • 1 Volume Cement
  • 5 Volumes Ballast
  • 12 Bags Cement
  • 1m3 Ballast - makes 0.85m3 of concrete

For Flooring or Paving

  • Use Blended or Washed sand
  • 1 Volume Cement
  • 3 Volumes Sand
  • 18 Bags of Cement
  • 1m3 Sand - makes 0.9m3 of concrete

For Walls

  • Plaster Coverage per 25kg Bag
  • Thistle multi Finish - 10m2 at 2mm
  • Thistle Bonding - 2.75m2 at 11mm
  • Thistle Hardwall - 3m2 at 11mm
  • Thistle Tough Coat - 3.5m2 at 11mm
  • Thistle Universal Coat - 2.25m2 at 13mm

Plasterboards (maximum spacing and fixing nails)

  • Board size: 2400 x 1200 x 9.5
  • 400mm c/s = 51 nails per sheet
  • Board size: 2400 x 1200 x 12.5
  • 450mm c/s = 41 nails per sheet

For Small Jobs

  • Brick size: 65 x 215 x 100
    Approximate quantities for single brickwork of 60 bricks per m2 allow 0.8m3 sand per 1000 bricks
  • Block size: 215 x 450 x 100
    Approximate quantities for single blockwork of 10 Blocks per m2 allow 0.8m3 of sand per 40m2 of blockwork