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Tile-Waste

Updated over 6 months ago

Roof Wizard Button - Costing Tile-WasteWhat is Tile-Waste?

The Tile-Waste command opens the Tile-Waste dialog box, where you can set or modify the wastage factors applied to different tile items.
These values ensure that your tile quantities account for offcuts, breakages, and job-specific waste, resulting in accurate ordering and costing.


⚙️ How Tile Waste Is Calculated

Tile wastage is calculated in a specific sequence. Each waste factor builds upon the previous one:

  1. The nett number of field tiles is calculated.

  2. The extra pieces per course are added.

  3. The extra field pieces per length (m/ft) of hips and valleys are added.

  4. The percentage waste of field pieces is applied.

  5. The total number of field tiles is rounded to produce the final quantity.

💡 If you don’t want a specific waste factor applied, simply set its value to 0.


🧩 Waste Factor Options

Setting

Description

Extra Field Pieces (per course)

Note: Only functions when coursing method is used.

For more info see Tiles>Coursing

Adds a fixed number (or decimal fraction) of tiles to the end of each course line to account for expected breakages or handling losses.
➤ The more course lines there are, the more extra tiles are added to the total.

Extra Field Pieces (per length of hip and valley)

Adds a fixed number (or decimal fraction) of tiles per combined length (m or ft) of hip and valley.
➤ This factor accounts for breakages that occur while cutting tiles to fit hips and valleys.

Other Piece - Waste / Round up

Adds a percentage-based waste value to the total number of field tiles, then rounds up to the nearest specified value.
➤ Set this to 0 to disable rounding or waste percentage.


🧠 Notes on Tile Waste

  • Extra Field Pieces (per course):

    Can be used instead of or in addition to the same function in Tiles>Coursing. Be conscious of which you use to avoid doubling up.

    For more info see Tiles>Coursing

  • Off-cuts:
    The calculation assumes that off-cuts are not reused.
    If your process regularly reuses off-cuts (as may occur with metal tiles), reduce the waste factor values accordingly.

  • Experiment and adjust:
    Every project and material type is different. Try different settings and refine the values based on real-world experience to achieve accurate results.


🗂 Saving and Reusing Waste Configurations

You can create multiple tile waste configurations and save them for reuse.

  • [Save As] – Saves the current waste and rounding settings into a configuration file.

  • [Load] – Loads a previously saved set of waste settings.

Each configuration can be linked to individual tile records, making it easier to apply the correct waste rules automatically — without the estimator having to manually adjust values for each job.

This provides a consistent, streamlined approach to waste and rounding calculations.


💾 Applying and Viewing Tile Waste

  • Click [OK] to save your changes.

  • These values are automatically applied during tile quantity calculations when you select Reporting > Supply + Install or Supply-Only.

  • A summary of the tile waste calculations can be viewed at any time by opening Tile-Waste from either the Supply + Install or Supply-Only dialog boxes.

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