Waste and pitch

Two settings on every component decide how the app turns a measurement into an order quantity: waste and pitch. Both live on the component itself, and both can be overridden on a single quote without changing the saved component.

Waste

Waste is the extra allowance for cuts and breakages. You set it as either a percentage or a fixed amount.

• Percentage waste. Adds a percentage to the calculated quantity. Best for area-based materials like tiles or longrun.
• Fixed waste. Adds a fixed amount per item. Useful for lineal-based components where every length needs a small overlap or trim, for example "100mm of waste per ridge length".

You can also set waste to off if it does not apply.

Pitch

Roof areas are usually measured flat on a plan, but the real material runs along the slope. Pitch is the angle of the slope; the pitch factor scales the flat plan number up to the actual material length or area.

Three pitch types in the app:

• Rafter pitch. For the main roof slope. Covers tiles, longrun, underlay, membrane.
• Hip pitch. For hip rafters.
• Valley pitch. For valley rafters.

Pitch is only applied when the component has pitch enabled AND the quote is using a Plan measurement. If the component is set to Actual, the pitch step is skipped because the number is already the real one.

A worked example

A roof plan shows 100 m2. Pitch is 30 degrees (rafter pitch factor ~1.155). Waste is 5%.

• Plan, pitch on, 5% waste: 100 x 1.155 x 1.05 = ~121 m2 ordered.
• Plan, pitch off, 5% waste: 100 x 1.05 = 105 m2 ordered.
• Actual, pitch on, 5% waste: 100 x 1.05 = 105 m2 ordered. (Pitch skipped because the number is already real.)

Valleys and hips

The hip and valley pitch types currently support the standard 45-degree angle in plan view. Tapered valleys or hips will need either extra length added manually, or you can measure them as Actual and enter the real length.

Related

• Plan vs Actual
• Creating a component